diff options
Diffstat (limited to 'Godeps/_workspace/src/github.com/obscuren/qml/gl/es2/gl.go')
-rw-r--r-- | Godeps/_workspace/src/github.com/obscuren/qml/gl/es2/gl.go | 2990 |
1 files changed, 0 insertions, 2990 deletions
diff --git a/Godeps/_workspace/src/github.com/obscuren/qml/gl/es2/gl.go b/Godeps/_workspace/src/github.com/obscuren/qml/gl/es2/gl.go deleted file mode 100644 index 82c9d77cf..000000000 --- a/Godeps/_workspace/src/github.com/obscuren/qml/gl/es2/gl.go +++ /dev/null @@ -1,2990 +0,0 @@ -// ** file automatically generated by glgen -- do not edit manually ** - -package GL - -// #cgo CXXFLAGS: -std=c++0x -pedantic-errors -Wall -fno-strict-aliasing -// #cgo LDFLAGS: -lstdc++ -// #cgo !darwin LDFLAGS: -lGL -// #cgo darwin LDFLAGS: -framework OpenGL -// #cgo pkg-config: Qt5Core Qt5OpenGL -// -// #include "funcs.h" -// -// void free(void*); -// -import "C" - -import ( - "fmt" - "reflect" - "unsafe" - - "gopkg.in/qml.v1/gl/glbase" -) - -// API returns a value that offers methods matching the OpenGL version ES2 API. -// -// The returned API must not be used after the provided OpenGL context becomes invalid. -func API(context glbase.Contexter) *GL { - gl := &GL{} - gl.funcs = C.gles2_funcs() - if gl.funcs == nil { - panic(fmt.Errorf("OpenGL version ES2 is not available")) - } - return gl -} - -// GL implements the OpenGL version ES2 API. Values of this -// type must be created via the API function, and it must not be used after -// the associated OpenGL context becomes invalid. -type GL struct { - funcs unsafe.Pointer -} - -const ( - FALSE = 0 - TRUE = 1 - NONE = 0 - - BYTE = 0x1400 - UNSIGNED_BYTE = 0x1401 - SHORT = 0x1402 - UNSIGNED_SHORT = 0x1403 - INT = 0x1404 - UNSIGNED_INT = 0x1405 - FLOAT = 0x1406 - FIXED = 0x140C - - COLOR_BUFFER_BIT = 0x00004000 - DEPTH_BUFFER_BIT = 0x00000100 - STENCIL_BUFFER_BIT = 0x00000400 - - ALWAYS = 0x0207 - EQUAL = 0x0202 - GEQUAL = 0x0206 - GREATER = 0x0204 - LEQUAL = 0x0203 - LESS = 0x0201 - NEVER = 0x0200 - NOTEQUAL = 0x0205 - - DST_ALPHA = 0x0304 - ONE = 1 - ONE_MINUS_DST_ALPHA = 0x0305 - ONE_MINUS_SRC_ALPHA = 0x0303 - ONE_MINUS_SRC_COLOR = 0x0301 - SRC_ALPHA = 0x0302 - SRC_COLOR = 0x0300 - ZERO = 0 - - DST_COLOR = 0x0306 - ONE_MINUS_DST_COLOR = 0x0307 - SRC_ALPHA_SATURATE = 0x0308 - - BACK = 0x0405 - FRONT = 0x0404 - FRONT_AND_BACK = 0x0408 - - BLEND = 0x0BE2 - CULL_FACE = 0x0B44 - DEPTH_TEST = 0x0B71 - DITHER = 0x0BD0 - POLYGON_OFFSET_FILL = 0x8037 - SCISSOR_TEST = 0x0C11 - STENCIL_TEST = 0x0B90 - TEXTURE_2D = 0x0DE1 - - INVALID_ENUM = 0x0500 - INVALID_FRAMEBUFFER_OPERATION = 0x0506 - INVALID_OPERATION = 0x0502 - INVALID_VALUE = 0x0501 - NO_ERROR = 0 - OUT_OF_MEMORY = 0x0505 - - LINEAR = 0x2601 - - CCW = 0x0901 - CW = 0x0900 - - ALIASED_LINE_WIDTH_RANGE = 0x846E - ALIASED_POINT_SIZE_RANGE = 0x846D - ALPHA_BITS = 0x0D55 - BLUE_BITS = 0x0D54 - COLOR_CLEAR_VALUE = 0x0C22 - COLOR_WRITEMASK = 0x0C23 - CULL_FACE_MODE = 0x0B45 - DEPTH_BITS = 0x0D56 - DEPTH_CLEAR_VALUE = 0x0B73 - DEPTH_FUNC = 0x0B74 - DEPTH_RANGE = 0x0B70 - DEPTH_WRITEMASK = 0x0B72 - FRONT_FACE = 0x0B46 - GREEN_BITS = 0x0D53 - LINE_WIDTH = 0x0B21 - MAX_TEXTURE_SIZE = 0x0D33 - MAX_VIEWPORT_DIMS = 0x0D3A - PACK_ALIGNMENT = 0x0D05 - POLYGON_OFFSET_FACTOR = 0x8038 - POLYGON_OFFSET_UNITS = 0x2A00 - RED_BITS = 0x0D52 - SCISSOR_BOX = 0x0C10 - STENCIL_BITS = 0x0D57 - STENCIL_CLEAR_VALUE = 0x0B91 - STENCIL_FAIL = 0x0B94 - STENCIL_FUNC = 0x0B92 - STENCIL_PASS_DEPTH_FAIL = 0x0B95 - STENCIL_PASS_DEPTH_PASS = 0x0B96 - STENCIL_REF = 0x0B97 - STENCIL_VALUE_MASK = 0x0B93 - STENCIL_WRITEMASK = 0x0B98 - SUBPIXEL_BITS = 0x0D50 - TEXTURE_BINDING_2D = 0x8069 - UNPACK_ALIGNMENT = 0x0CF5 - VIEWPORT = 0x0BA2 - - TEXTURE_MAG_FILTER = 0x2800 - TEXTURE_MIN_FILTER = 0x2801 - TEXTURE_WRAP_S = 0x2802 - TEXTURE_WRAP_T = 0x2803 - - DONT_CARE = 0x1100 - FASTEST = 0x1101 - NICEST = 0x1102 - - GENERATE_MIPMAP_HINT = 0x8192 - - REPLACE = 0x1E01 - - INVERT = 0x150A - - TEXTURE = 0x1702 - - ALPHA = 0x1906 - DEPTH_COMPONENT = 0x1902 - LUMINANCE = 0x1909 - LUMINANCE_ALPHA = 0x190A - RGB = 0x1907 - RGBA = 0x1908 - - RGB5_A1 = 0x8057 - RGBA4 = 0x8056 - - UNSIGNED_SHORT_4_4_4_4 = 0x8033 - UNSIGNED_SHORT_5_5_5_1 = 0x8034 - - LINES = 0x0001 - LINE_LOOP = 0x0002 - LINE_STRIP = 0x0003 - POINTS = 0x0000 - TRIANGLES = 0x0004 - TRIANGLE_FAN = 0x0006 - TRIANGLE_STRIP = 0x0005 - - DECR = 0x1E03 - INCR = 0x1E02 - KEEP = 0x1E00 - - EXTENSIONS = 0x1F03 - RENDERER = 0x1F01 - VENDOR = 0x1F00 - VERSION = 0x1F02 - - NEAREST = 0x2600 - - LINEAR_MIPMAP_LINEAR = 0x2703 - LINEAR_MIPMAP_NEAREST = 0x2701 - NEAREST_MIPMAP_LINEAR = 0x2702 - NEAREST_MIPMAP_NEAREST = 0x2700 - - CLAMP_TO_EDGE = 0x812F - REPEAT = 0x2901 - - CONSTANT_COLOR = 0x8001 - ONE_MINUS_CONSTANT_COLOR = 0x8002 - CONSTANT_ALPHA = 0x8003 - ONE_MINUS_CONSTANT_ALPHA = 0x8004 - BLEND_COLOR = 0x8005 - FUNC_ADD = 0x8006 - BLEND_EQUATION = 0x8009 - BLEND_EQUATION_RGB = 0x8009 - FUNC_SUBTRACT = 0x800A - FUNC_REVERSE_SUBTRACT = 0x800B - SAMPLE_ALPHA_TO_COVERAGE = 0x809E - SAMPLE_COVERAGE = 0x80A0 - SAMPLE_BUFFERS = 0x80A8 - SAMPLES = 0x80A9 - SAMPLE_COVERAGE_VALUE = 0x80AA - SAMPLE_COVERAGE_INVERT = 0x80AB - BLEND_DST_RGB = 0x80C8 - BLEND_SRC_RGB = 0x80C9 - BLEND_DST_ALPHA = 0x80CA - BLEND_SRC_ALPHA = 0x80CB - DEPTH_COMPONENT16 = 0x81A5 - UNSIGNED_SHORT_5_6_5 = 0x8363 - MIRRORED_REPEAT = 0x8370 - TEXTURE0 = 0x84C0 - TEXTURE1 = 0x84C1 - TEXTURE2 = 0x84C2 - TEXTURE3 = 0x84C3 - TEXTURE4 = 0x84C4 - TEXTURE5 = 0x84C5 - TEXTURE6 = 0x84C6 - TEXTURE7 = 0x84C7 - TEXTURE8 = 0x84C8 - TEXTURE9 = 0x84C9 - TEXTURE10 = 0x84CA - TEXTURE11 = 0x84CB - TEXTURE12 = 0x84CC - TEXTURE13 = 0x84CD - TEXTURE14 = 0x84CE - TEXTURE15 = 0x84CF - TEXTURE16 = 0x84D0 - TEXTURE17 = 0x84D1 - TEXTURE18 = 0x84D2 - TEXTURE19 = 0x84D3 - TEXTURE20 = 0x84D4 - TEXTURE21 = 0x84D5 - TEXTURE22 = 0x84D6 - TEXTURE23 = 0x84D7 - TEXTURE24 = 0x84D8 - TEXTURE25 = 0x84D9 - TEXTURE26 = 0x84DA - TEXTURE27 = 0x84DB - TEXTURE28 = 0x84DC - TEXTURE29 = 0x84DD - TEXTURE30 = 0x84DE - TEXTURE31 = 0x84DF - ACTIVE_TEXTURE = 0x84E0 - MAX_RENDERBUFFER_SIZE = 0x84E8 - INCR_WRAP = 0x8507 - DECR_WRAP = 0x8508 - TEXTURE_CUBE_MAP = 0x8513 - TEXTURE_BINDING_CUBE_MAP = 0x8514 - TEXTURE_CUBE_MAP_POSITIVE_X = 0x8515 - TEXTURE_CUBE_MAP_NEGATIVE_X = 0x8516 - TEXTURE_CUBE_MAP_POSITIVE_Y = 0x8517 - TEXTURE_CUBE_MAP_NEGATIVE_Y = 0x8518 - TEXTURE_CUBE_MAP_POSITIVE_Z = 0x8519 - TEXTURE_CUBE_MAP_NEGATIVE_Z = 0x851A - MAX_CUBE_MAP_TEXTURE_SIZE = 0x851C - VERTEX_ATTRIB_ARRAY_ENABLED = 0x8622 - VERTEX_ATTRIB_ARRAY_SIZE = 0x8623 - VERTEX_ATTRIB_ARRAY_STRIDE = 0x8624 - VERTEX_ATTRIB_ARRAY_TYPE = 0x8625 - CURRENT_VERTEX_ATTRIB = 0x8626 - VERTEX_ATTRIB_ARRAY_POINTER = 0x8645 - NUM_COMPRESSED_TEXTURE_FORMATS = 0x86A2 - COMPRESSED_TEXTURE_FORMATS = 0x86A3 - BUFFER_SIZE = 0x8764 - BUFFER_USAGE = 0x8765 - STENCIL_BACK_FUNC = 0x8800 - STENCIL_BACK_FAIL = 0x8801 - STENCIL_BACK_PASS_DEPTH_FAIL = 0x8802 - STENCIL_BACK_PASS_DEPTH_PASS = 0x8803 - BLEND_EQUATION_ALPHA = 0x883D - MAX_VERTEX_ATTRIBS = 0x8869 - VERTEX_ATTRIB_ARRAY_NORMALIZED = 0x886A - MAX_TEXTURE_IMAGE_UNITS = 0x8872 - ARRAY_BUFFER = 0x8892 - ELEMENT_ARRAY_BUFFER = 0x8893 - ARRAY_BUFFER_BINDING = 0x8894 - ELEMENT_ARRAY_BUFFER_BINDING = 0x8895 - VERTEX_ATTRIB_ARRAY_BUFFER_BINDING = 0x889F - STREAM_DRAW = 0x88E0 - STATIC_DRAW = 0x88E4 - DYNAMIC_DRAW = 0x88E8 - FRAGMENT_SHADER = 0x8B30 - VERTEX_SHADER = 0x8B31 - MAX_VERTEX_TEXTURE_IMAGE_UNITS = 0x8B4C - MAX_COMBINED_TEXTURE_IMAGE_UNITS = 0x8B4D - SHADER_TYPE = 0x8B4F - FLOAT_VEC2 = 0x8B50 - FLOAT_VEC3 = 0x8B51 - FLOAT_VEC4 = 0x8B52 - INT_VEC2 = 0x8B53 - INT_VEC3 = 0x8B54 - INT_VEC4 = 0x8B55 - BOOL = 0x8B56 - BOOL_VEC2 = 0x8B57 - BOOL_VEC3 = 0x8B58 - BOOL_VEC4 = 0x8B59 - FLOAT_MAT2 = 0x8B5A - FLOAT_MAT3 = 0x8B5B - FLOAT_MAT4 = 0x8B5C - SAMPLER_2D = 0x8B5E - SAMPLER_CUBE = 0x8B60 - DELETE_STATUS = 0x8B80 - COMPILE_STATUS = 0x8B81 - LINK_STATUS = 0x8B82 - VALIDATE_STATUS = 0x8B83 - INFO_LOG_LENGTH = 0x8B84 - ATTACHED_SHADERS = 0x8B85 - ACTIVE_UNIFORMS = 0x8B86 - ACTIVE_UNIFORM_MAX_LENGTH = 0x8B87 - SHADER_SOURCE_LENGTH = 0x8B88 - ACTIVE_ATTRIBUTES = 0x8B89 - ACTIVE_ATTRIBUTE_MAX_LENGTH = 0x8B8A - SHADING_LANGUAGE_VERSION = 0x8B8C - CURRENT_PROGRAM = 0x8B8D - IMPLEMENTATION_COLOR_READ_TYPE = 0x8B9A - IMPLEMENTATION_COLOR_READ_FORMAT = 0x8B9B - STENCIL_BACK_REF = 0x8CA3 - STENCIL_BACK_VALUE_MASK = 0x8CA4 - STENCIL_BACK_WRITEMASK = 0x8CA5 - FRAMEBUFFER_BINDING = 0x8CA6 - RENDERBUFFER_BINDING = 0x8CA7 - FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE = 0x8CD0 - FRAMEBUFFER_ATTACHMENT_OBJECT_NAME = 0x8CD1 - FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL = 0x8CD2 - FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE = 0x8CD3 - FRAMEBUFFER_COMPLETE = 0x8CD5 - FRAMEBUFFER_INCOMPLETE_ATTACHMENT = 0x8CD6 - FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT = 0x8CD7 - FRAMEBUFFER_INCOMPLETE_DIMENSIONS = 0x8CD9 - FRAMEBUFFER_UNSUPPORTED = 0x8CDD - COLOR_ATTACHMENT0 = 0x8CE0 - DEPTH_ATTACHMENT = 0x8D00 - STENCIL_ATTACHMENT = 0x8D20 - FRAMEBUFFER = 0x8D40 - RENDERBUFFER = 0x8D41 - RENDERBUFFER_WIDTH = 0x8D42 - RENDERBUFFER_HEIGHT = 0x8D43 - RENDERBUFFER_INTERNAL_FORMAT = 0x8D44 - STENCIL_INDEX8 = 0x8D48 - RENDERBUFFER_RED_SIZE = 0x8D50 - RENDERBUFFER_GREEN_SIZE = 0x8D51 - RENDERBUFFER_BLUE_SIZE = 0x8D52 - RENDERBUFFER_ALPHA_SIZE = 0x8D53 - RENDERBUFFER_DEPTH_SIZE = 0x8D54 - RENDERBUFFER_STENCIL_SIZE = 0x8D55 - RGB565 = 0x8D62 - LOW_FLOAT = 0x8DF0 - MEDIUM_FLOAT = 0x8DF1 - HIGH_FLOAT = 0x8DF2 - LOW_INT = 0x8DF3 - MEDIUM_INT = 0x8DF4 - HIGH_INT = 0x8DF5 - SHADER_BINARY_FORMATS = 0x8DF8 - NUM_SHADER_BINARY_FORMATS = 0x8DF9 - SHADER_COMPILER = 0x8DFA - MAX_VERTEX_UNIFORM_VECTORS = 0x8DFB - MAX_VARYING_VECTORS = 0x8DFC - MAX_FRAGMENT_UNIFORM_VECTORS = 0x8DFD -) - -// https://www.opengl.org/sdk/docs/man2/xhtml/glActiveTexture.xml -func (gl *GL) ActiveTexture(texture glbase.Enum) { - C.gles2_glActiveTexture(gl.funcs, C.GLenum(texture)) -} - -// AttachShader attaches a shader object to a program object. -// -// In order to create an executable, there must be a way to specify the list -// of things that will be linked together. Program objects provide this -// mechanism. Shaders that are to be linked together in a program object must -// first be attached to that program object. This indicates that shader will -// be included in link operations that will be performed on program. -// -// All operations that can be performed on a shader object are valid whether -// or not the shader object is attached to a program object. It is -// permissible to attach a shader object to a program object before source -// code has been loaded into the shader object or before the shader object -// has been compiled. It is permissible to attach multiple shader objects of -// the same type because each may contain a portion of the complete shader. -// It is also permissible to attach a shader object to more than one program -// object. If a shader object is deleted while it is attached to a program -// object, it will be flagged for deletion, and deletion will not occur until -// DetachShader is called to detach it from all program objects to which it -// is attached. -// -// Error GL.INVALID_VALUE is generated if either program or shader is not a -// value generated by OpenGL. GL.INVALID_OPERATION is generated if program -// is not a program object. GL.INVALID_OPERATION is generated if shader is -// not a shader object. GL.INVALID_OPERATION is generated if shader is -// already attached to program. GL.INVALID_OPERATION is generated if -// AttachShader is executed between the execution of Begin and the -// corresponding execution of End. -// -// AttachShader is available in GL version 2.0 or greater. -func (gl *GL) AttachShader(program glbase.Program, shader glbase.Shader) { - C.gles2_glAttachShader(gl.funcs, C.GLuint(program), C.GLuint(shader)) -} - -// BindAttribLocation associates a user-defined attribute variable in the program -// object specified by program with a generic vertex attribute index. The name -// parameter specifies the name of the vertex shader attribute variable to -// which index is to be bound. When program is made part of the current state, -// values provided via the generic vertex attribute index will modify the -// value of the user-defined attribute variable specified by name. -// -// If name refers to a matrix attribute variable, index refers to the first -// column of the matrix. Other matrix columns are then automatically bound to -// locations index+1 for a matrix of type mat2; index+1 and index+2 for a -// matrix of type mat3; and index+1, index+2, and index+3 for a matrix of -// type mat4. -// -// This command makes it possible for vertex shaders to use descriptive names -// for attribute variables rather than generic variables that are numbered -// from 0 to GL.MAX_VERTEX_ATTRIBS-1. The values sent to each generic -// attribute index are part of current state, just like standard vertex -// attributes such as color, normal, and vertex position. If a different -// program object is made current by calling UseProgram, the generic vertex -// attributes are tracked in such a way that the same values will be observed -// by attributes in the new program object that are also bound to index. -// -// Attribute variable name-to-generic attribute index bindings for a program -// object can be explicitly assigned at any time by calling -// BindAttribLocation. Attribute bindings do not go into effect until -// LinkProgram is called. After a program object has been linked -// successfully, the index values for generic attributes remain fixed (and -// their values can be queried) until the next link command occurs. -// -// Applications are not allowed to bind any of the standard OpenGL vertex -// attributes using this command, as they are bound automatically when -// needed. Any attribute binding that occurs after the program object has -// been linked will not take effect until the next time the program object is -// linked. -// -// If name was bound previously, that information is lost. Thus you cannot -// bind one user-defined attribute variable to multiple indices, but you can -// bind multiple user-defined attribute variables to the same index. -// -// Applications are allowed to bind more than one user-defined attribute -// variable to the same generic vertex attribute index. This is called -// aliasing, and it is allowed only if just one of the aliased attributes is -// active in the executable program, or if no path through the shader -// consumes more than one attribute of a set of attributes aliased to the -// same location. The compiler and linker are allowed to assume that no -// aliasing is done and are free to employ optimizations that work only in -// the absence of aliasing. OpenGL implementations are not required to do -// error checking to detect aliasing. Because there is no way to bind -// standard attributes, it is not possible to alias generic attributes with -// conventional ones (except for generic attribute 0). -// -// BindAttribLocation can be called before any vertex shader objects are -// bound to the specified program object. It is also permissible to bind a -// generic attribute index to an attribute variable name that is never used -// in a vertex shader. -// -// Active attributes that are not explicitly bound will be bound by the -// linker when LinkProgram is called. The locations assigned can be queried -// by calling GetAttribLocation. -// -// Error GL.INVALID_VALUE is generated if index is greater than or equal to -// GL.MAX_VERTEX_ATTRIBS. -// GL.INVALID_OPERATION is generated if name starts with the reserved prefix "gl_". -// GL.INVALID_VALUE is generated if program is not a value generated by OpenGL. -// GL.INVALID_OPERATION is generated if program is not a program object. -// GL.INVALID_OPERATION is generated if BindAttribLocation is executed -// between the execution of Begin and the corresponding execution of End. -// -// BindAttribLocation is available in GL version 2.0 or greater. -func (gl *GL) BindAttribLocation(program glbase.Program, index glbase.Attrib, name string) { - name_cstr := C.CString(name) - C.gles2_glBindAttribLocation(gl.funcs, C.GLuint(program), C.GLuint(index), (*C.GLchar)(name_cstr)) - C.free(unsafe.Pointer(name_cstr)) -} - -// BindBuffer creates or puts in use a named buffer object. -// Calling BindBuffer with target set to GL.ARRAY_BUFFER, -// GL.ELEMENT_ARRAY_BUFFER, GL.PIXEL_PACK_BUFFER or GL.PIXEL_UNPACK_BUFFER -// and buffer set to the name of the new buffer object binds the buffer -// object name to the target. When a buffer object is bound to a target, the -// previous binding for that target is automatically broken. -// -// Buffer object names are unsigned integers. The value zero is reserved, but -// there is no default buffer object for each buffer object target. Instead, -// buffer set to zero effectively unbinds any buffer object previously bound, -// and restores client memory usage for that buffer object target. Buffer -// object names and the corresponding buffer object contents are local to the -// shared display-list space (see XCreateContext) of the current GL rendering -// context; two rendering contexts share buffer object names only if they -// also share display lists. -// -// GenBuffers may be called to generate a set of new buffer object names. -// -// The state of a buffer object immediately after it is first bound is an -// unmapped zero-sized memory buffer with GL.READ_WRITE access and -// GL.STATIC_DRAW usage. -// -// While a non-zero buffer object name is bound, GL operations on the target -// to which it is bound affect the bound buffer object, and queries of the -// target to which it is bound return state from the bound buffer object. -// While buffer object name zero is bound, as in the initial state, attempts -// to modify or query state on the target to which it is bound generates an -// GL.INVALID_OPERATION error. -// -// When vertex array pointer state is changed, for example by a call to -// NormalPointer, the current buffer object binding (GL.ARRAY_BUFFER_BINDING) -// is copied into the corresponding client state for the vertex array type -// being changed, for example GL.NORMAL_ARRAY_BUFFER_BINDING. While a -// non-zero buffer object is bound to the GL.ARRAY_BUFFER target, the vertex -// array pointer parameter that is traditionally interpreted as a pointer to -// client-side memory is instead interpreted as an offset within the buffer -// object measured in basic machine units. -// -// While a non-zero buffer object is bound to the GL.ELEMENT_ARRAY_BUFFER -// target, the indices parameter of DrawElements, DrawRangeElements, or -// MultiDrawElements that is traditionally interpreted as a pointer to -// client-side memory is instead interpreted as an offset within the buffer -// object measured in basic machine units. -// -// While a non-zero buffer object is bound to the GL.PIXEL_PACK_BUFFER -// target, the following commands are affected: GetCompressedTexImage, -// GetConvolutionFilter, GetHistogram, GetMinmax, GetPixelMap, -// GetPolygonStipple, GetSeparableFilter, GetTexImage, and ReadPixels. The -// pointer parameter that is traditionally interpreted as a pointer to -// client-side memory where the pixels are to be packed is instead -// interpreted as an offset within the buffer object measured in basic -// machine units. -// -// While a non-zero buffer object is bound to the GL.PIXEL_UNPACK_BUFFER -// target, the following commands are affected: Bitmap, ColorSubTable, -// ColorTable, CompressedTexImage1D, CompressedTexImage2D, -// CompressedTexImage3D, CompressedTexSubImage1D, CompressedTexSubImage2D, -// CompressedTexSubImage3D, ConvolutionFilter1D, ConvolutionFilter2D, -// DrawPixels, PixelMap, PolygonStipple, SeparableFilter2D, TexImage1D, -// TexImage2D, TexImage3D, TexSubImage1D, TexSubImage2D, and TexSubImage3D. -// The pointer parameter that is traditionally interpreted as a pointer to -// client-side memory from which the pixels are to be unpacked is instead -// interpreted as an offset within the buffer object measured in basic -// machine units. -// -// A buffer object binding created with BindBuffer remains active until a -// different buffer object name is bound to the same target, or until the -// bound buffer object is deleted with DeleteBuffers. -// -// Once created, a named buffer object may be re-bound to any target as often -// as needed. However, the GL implementation may make choices about how to -// optimize the storage of a buffer object based on its initial binding -// target. -// -// Error GL.INVALID_ENUM is generated if target is not one of the allowable -// values. GL.INVALID_OPERATION is generated if BindBuffer is executed -// between the execution of Begin and the corresponding execution of End. -// -// BindBuffer is available in GL version 1.5 or greater. -func (gl *GL) BindBuffer(target glbase.Enum, buffer glbase.Buffer) { - C.gles2_glBindBuffer(gl.funcs, C.GLenum(target), C.GLuint(buffer)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glBindFramebuffer.xml -func (gl *GL) BindFramebuffer(target glbase.Enum, framebuffer glbase.Framebuffer) { - C.gles2_glBindFramebuffer(gl.funcs, C.GLenum(target), C.GLuint(framebuffer)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glBindRenderbuffer.xml -func (gl *GL) BindRenderbuffer(target glbase.Enum, renderbuffer glbase.Renderbuffer) { - C.gles2_glBindRenderbuffer(gl.funcs, C.GLenum(target), C.GLuint(renderbuffer)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glBlendColor.xml -func (gl *GL) BlendColor(red, green, blue, alpha glbase.Clampf) { - C.gles2_glBlendColor(gl.funcs, C.GLclampf(red), C.GLclampf(green), C.GLclampf(blue), C.GLclampf(alpha)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glBlendEquation.xml -func (gl *GL) BlendEquation(mode glbase.Enum) { - C.gles2_glBlendEquation(gl.funcs, C.GLenum(mode)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glBlendEquationSeparate.xml -func (gl *GL) BlendEquationSeparate(modeRGB, modeAlpha glbase.Enum) { - C.gles2_glBlendEquationSeparate(gl.funcs, C.GLenum(modeRGB), C.GLenum(modeAlpha)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glBlendFuncSeparate.xml -func (gl *GL) BlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha glbase.Enum) { - C.gles2_glBlendFuncSeparate(gl.funcs, C.GLenum(srcRGB), C.GLenum(dstRGB), C.GLenum(srcAlpha), C.GLenum(dstAlpha)) -} - -// BufferData creates a new data store for the buffer object currently -// bound to target. Any pre-existing data store is deleted. The new data -// store is created with the specified size in bytes and usage. If data is -// not nil, it must be a slice that is used to initialize the data store. -// In that case the size parameter is ignored and the store size will match -// the slice data size. -// -// In its initial state, the new data store is not mapped, it has a NULL -// mapped pointer, and its mapped access is GL.READ_WRITE. -// -// The target constant must be one of GL.ARRAY_BUFFER, GL.COPY_READ_BUFFER, -// GL.COPY_WRITE_BUFFER, GL.ELEMENT_ARRAY_BUFFER, GL.PIXEL_PACK_BUFFER, -// GL.PIXEL_UNPACK_BUFFER, GL.TEXTURE_BUFFER, GL.TRANSFORM_FEEDBACK_BUFFER, -// or GL.UNIFORM_BUFFER. -// -// The usage parameter is a hint to the GL implementation as to how a buffer -// object's data store will be accessed. This enables the GL implementation -// to make more intelligent decisions that may significantly impact buffer -// object performance. It does not, however, constrain the actual usage of -// the data store. usage can be broken down into two parts: first, the -// frequency of access (modification and usage), and second, the nature of -// that access. -// -// A usage frequency of STREAM and nature of DRAW is specified via the -// constant GL.STREAM_DRAW, for example. -// -// The usage frequency of access may be one of: -// -// STREAM -// The data store contents will be modified once and used at most a few times. -// -// STATIC -// The data store contents will be modified once and used many times. -// -// DYNAMIC -// The data store contents will be modified repeatedly and used many times. -// -// The usage nature of access may be one of: -// -// DRAW -// The data store contents are modified by the application, and used as -// the source for GL drawing and image specification commands. -// -// READ -// The data store contents are modified by reading data from the GL, -// and used to return that data when queried by the application. -// -// COPY -// The data store contents are modified by reading data from the GL, -// and used as the source for GL drawing and image specification -// commands. -// -// Clients must align data elements consistent with the requirements of the -// client platform, with an additional base-level requirement that an offset -// within a buffer to a datum comprising N bytes be a multiple of N. -// -// Error GL.INVALID_ENUM is generated if target is not one of the accepted -// buffer targets. GL.INVALID_ENUM is generated if usage is not -// GL.STREAM_DRAW, GL.STREAM_READ, GL.STREAM_COPY, GL.STATIC_DRAW, -// GL.STATIC_READ, GL.STATIC_COPY, GL.DYNAMIC_DRAW, GL.DYNAMIC_READ, or -// GL.DYNAMIC_COPY. GL.INVALID_VALUE is generated if size is negative. -// GL.INVALID_OPERATION is generated if the reserved buffer object name 0 is -// bound to target. GL.OUT_OF_MEMORY is generated if the GL is unable to -// create a data store with the specified size. -func (gl *GL) BufferData(target glbase.Enum, size int, data interface{}, usage glbase.Enum) { - var data_ptr unsafe.Pointer - var data_v = reflect.ValueOf(data) - if data != nil && data_v.Kind() != reflect.Slice { - panic("parameter data must be a slice") - } - if data != nil { - data_ptr = unsafe.Pointer(data_v.Index(0).Addr().Pointer()) - } - if data != nil { - size = int(data_v.Type().Size()) * data_v.Len() - } - C.gles2_glBufferData(gl.funcs, C.GLenum(target), C.GLsizeiptr(size), data_ptr, C.GLenum(usage)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glBufferSubData.xml -func (gl *GL) BufferSubData(target glbase.Enum, offset, size int, data interface{}) { - var data_ptr unsafe.Pointer - var data_v = reflect.ValueOf(data) - if data != nil && data_v.Kind() != reflect.Slice { - panic("parameter data must be a slice") - } - if data != nil { - data_ptr = unsafe.Pointer(data_v.Index(0).Addr().Pointer()) - } - C.gles2_glBufferSubData(gl.funcs, C.GLenum(target), C.GLintptr(offset), C.GLsizeiptr(size), data_ptr) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glCheckFramebufferStatus.xml -func (gl *GL) CheckFramebufferStatus(target glbase.Enum) glbase.Enum { - glresult := C.gles2_glCheckFramebufferStatus(gl.funcs, C.GLenum(target)) - return glbase.Enum(glresult) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glClearDepthf.xml -func (gl *GL) ClearDepthf(depth glbase.Clampf) { - C.gles2_glClearDepthf(gl.funcs, C.GLclampf(depth)) -} - -// CompileShader compiles the source code strings that have been stored in -// the shader object specified by shader. -// -// The compilation status will be stored as part of the shader object's -// state. This value will be set to GL.TRUE if the shader was compiled without -// errors and is ready for use, and GL.FALSE otherwise. It can be queried by -// calling GetShaderiv with arguments shader and GL.COMPILE_STATUS. -// -// Compilation of a shader can fail for a number of reasons as specified by -// the OpenGL Shading Language Specification. Whether or not the compilation -// was successful, information about the compilation can be obtained from the -// shader object's information log by calling GetShaderInfoLog. -// -// Error GL.INVALID_VALUE is generated if shader is not a value generated by -// OpenGL. GL.INVALID_OPERATION is generated if shader is not a shader -// object. GL.INVALID_OPERATION is generated if CompileShader is executed -// between the execution of Begin and the corresponding execution of End. -// -// CompileShader is available in GL version 2.0 or greater. -func (gl *GL) CompileShader(shader glbase.Shader) { - C.gles2_glCompileShader(gl.funcs, C.GLuint(shader)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glCompressedTexImage2D.xml -func (gl *GL) CompressedTexImage2D(target glbase.Enum, level int, internalFormat glbase.Enum, width, height, border, imageSize int, data interface{}) { - var data_ptr unsafe.Pointer - var data_v = reflect.ValueOf(data) - if data != nil && data_v.Kind() != reflect.Slice { - panic("parameter data must be a slice") - } - if data != nil { - data_ptr = unsafe.Pointer(data_v.Index(0).Addr().Pointer()) - } - C.gles2_glCompressedTexImage2D(gl.funcs, C.GLenum(target), C.GLint(level), C.GLenum(internalFormat), C.GLsizei(width), C.GLsizei(height), C.GLint(border), C.GLsizei(imageSize), data_ptr) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glCompressedTexSubImage2D.xml -func (gl *GL) CompressedTexSubImage2D(target glbase.Enum, level, xoffset, yoffset, width, height int, format glbase.Enum, imageSize int, data interface{}) { - var data_ptr unsafe.Pointer - var data_v = reflect.ValueOf(data) - if data != nil && data_v.Kind() != reflect.Slice { - panic("parameter data must be a slice") - } - if data != nil { - data_ptr = unsafe.Pointer(data_v.Index(0).Addr().Pointer()) - } - C.gles2_glCompressedTexSubImage2D(gl.funcs, C.GLenum(target), C.GLint(level), C.GLint(xoffset), C.GLint(yoffset), C.GLsizei(width), C.GLsizei(height), C.GLenum(format), C.GLsizei(imageSize), data_ptr) -} - -// CreateProgram creates an empty program object and returns a non-zero -// value by which it can be referenced. A program object is an object to -// which shader objects can be attached. This provides a mechanism to specify -// the shader objects that will be linked to create a program. It also -// provides a means for checking the compatibility of the shaders that will -// be used to create a program (for instance, checking the compatibility -// between a vertex shader and a fragment shader). When no longer needed as -// part of a program object, shader objects can be detached. -// -// One or more executables are created in a program object by successfully -// attaching shader objects to it with AttachShader, successfully compiling -// the shader objects with CompileShader, and successfully linking the -// program object with LinkProgram. These executables are made part of -// current state when UseProgram is called. Program objects can be deleted -// by calling DeleteProgram. The memory associated with the program object -// will be deleted when it is no longer part of current rendering state for -// any context. -// -// Like display lists and texture objects, the name space for program objects -// may be shared across a set of contexts, as long as the server sides of the -// contexts share the same address space. If the name space is shared across -// contexts, any attached objects and the data associated with those attached -// objects are shared as well. -// -// Applications are responsible for providing the synchronization across API -// calls when objects are accessed from different execution threads. -// -// This function returns 0 if an error occurs creating the program object. -// -// Error GL.INVALID_OPERATION is generated if CreateProgram is executed -// between the execution of Begin and the corresponding execution of End. -// -// CreateProgram is available in GL version 2.0 or greater. -func (gl *GL) CreateProgram() glbase.Program { - glresult := C.gles2_glCreateProgram(gl.funcs) - return glbase.Program(glresult) -} - -// CreateShader creates an empty shader object and returns a non-zero value -// by which it can be referenced. A shader object is used to maintain the -// source code strings that define a shader. shaderType indicates the type of -// shader to be created. -// -// Two types of shaders are supported. A shader of type GL.VERTEX_SHADER is a -// shader that is intended to run on the programmable vertex processor and -// replace the fixed functionality vertex processing in OpenGL. A shader of -// type GL.FRAGMENT_SHADER is a shader that is intended to run on the -// programmable fragment processor and replace the fixed functionality -// fragment processing in OpenGL. -// -// When created, a shader object's GL.SHADER_TYPE parameter is set to either -// GL.VERTEX_SHADER or GL.FRAGMENT_SHADER, depending on the value of -// shaderType. -// -// Like display lists and texture objects, the name space for shader objects -// may be shared across a set of contexts, as long as the server sides of the -// contexts share the same address space. If the name space is shared across -// contexts, any attached objects and the data associated with those attached -// objects are shared as well. -// -// This function returns 0 if an error occurs creating the shader object. -// -// Error GL.INVALID_ENUM is generated if shaderType is not an accepted value. -// GL.INVALID_OPERATION is generated if CreateShader is executed between the -// execution of Begin and the corresponding execution of End. -// -// CreateShader is available in GL version 2.0 or greater. -func (gl *GL) CreateShader(gltype glbase.Enum) glbase.Shader { - glresult := C.gles2_glCreateShader(gl.funcs, C.GLenum(gltype)) - return glbase.Shader(glresult) -} - -// DeleteBuffers deletes the buffer objects whose names are stored in the -// buffers slice. -// -// After a buffer object is deleted, it has no contents, and its name is free -// for reuse (for example by GenBuffers). If a buffer object that is -// currently bound is deleted, the binding reverts to 0 (the absence of any -// buffer object, which reverts to client memory usage). -// -// DeleteBuffers silently ignores 0's and names that do not correspond to -// existing buffer objects. -// -// Error GL.INVALID_VALUE is generated if n is negative. GL.INVALID_OPERATION -// is generated if DeleteBuffers is executed between the execution of Begin -// and the corresponding execution of End. -// -// DeleteBuffers is available in GL version 1.5 or greater. -func (gl *GL) DeleteBuffers(buffers []glbase.Buffer) { - n := len(buffers) - if n == 0 { - return - } - C.gles2_glDeleteBuffers(gl.funcs, C.GLsizei(n), (*C.GLuint)(unsafe.Pointer(&buffers[0]))) -} - -// DeleteFramebuffers deletes the framebuffer objects whose names are -// stored in the framebuffers slice. The name zero is reserved by the GL and -// is silently ignored, should it occur in framebuffers, as are other unused -// names. Once a framebuffer object is deleted, its name is again unused and -// it has no attachments. If a framebuffer that is currently bound to one or -// more of the targets GL.DRAW_FRAMEBUFFER or GL.READ_FRAMEBUFFER is deleted, -// it is as though BindFramebuffer had been executed with the corresponding -// target and framebuffer zero. -// -// Error GL.INVALID_VALUE is generated if n is negative. -// -// DeleteFramebuffers is available in GL version 3.0 or greater. -func (gl *GL) DeleteFramebuffers(framebuffers []glbase.Framebuffer) { - n := len(framebuffers) - if n == 0 { - return - } - C.gles2_glDeleteFramebuffers(gl.funcs, C.GLsizei(n), (*C.GLuint)(unsafe.Pointer(&framebuffers[0]))) -} - -// DeleteProgram frees the memory and invalidates the name associated with -// the program object specified by program. This command effectively undoes -// the effects of a call to CreateProgram. -// -// If a program object is in use as part of current rendering state, it will -// be flagged for deletion, but it will not be deleted until it is no longer -// part of current state for any rendering context. If a program object to be -// deleted has shader objects attached to it, those shader objects will be -// automatically detached but not deleted unless they have already been -// flagged for deletion by a previous call to DeleteShader. A value of 0 -// for program will be silently ignored. -// -// To determine whether a program object has been flagged for deletion, call -// GetProgram with arguments program and GL.DELETE_STATUS. -// -// Error GL.INVALID_VALUE is generated if program is not a value generated by -// OpenGL. -// -// DeleteProgram is available in GL version 2.0 or greater. -func (gl *GL) DeleteProgram(program glbase.Program) { - C.gles2_glDeleteProgram(gl.funcs, C.GLuint(program)) -} - -// DeleteRenderbuffers deletes the renderbuffer objects whose names are stored -// in the renderbuffers slice. The name zero is reserved by the GL and -// is silently ignored, should it occur in renderbuffers, as are other unused -// names. Once a renderbuffer object is deleted, its name is again unused and -// it has no contents. If a renderbuffer that is currently bound to the -// target GL.RENDERBUFFER is deleted, it is as though BindRenderbuffer had -// been executed with a target of GL.RENDERBUFFER and a name of zero. -// -// If a renderbuffer object is attached to one or more attachment points in -// the currently bound framebuffer, then it as if FramebufferRenderbuffer -// had been called, with a renderbuffer of zero for each attachment point to -// which this image was attached in the currently bound framebuffer. In other -// words, this renderbuffer object is first detached from all attachment -// ponits in the currently bound framebuffer. Note that the renderbuffer -// image is specifically not detached from any non-bound framebuffers. -// -// Error GL.INVALID_VALUE is generated if n is negative. -// -// DeleteRenderbuffers is available in GL version 3.0 or greater. -func (gl *GL) DeleteRenderbuffers(renderbuffers []glbase.Renderbuffer) { - n := len(renderbuffers) - if n == 0 { - return - } - C.gles2_glDeleteRenderbuffers(gl.funcs, C.GLsizei(n), (*C.GLuint)(unsafe.Pointer(&renderbuffers[0]))) -} - -// DeleteShader frees the memory and invalidates the name associated with -// the shader object specified by shader. This command effectively undoes the -// effects of a call to CreateShader. -// -// If a shader object to be deleted is attached to a program object, it will -// be flagged for deletion, but it will not be deleted until it is no longer -// attached to any program object, for any rendering context (it must -// be detached from wherever it was attached before it will be deleted). A -// value of 0 for shader will be silently ignored. -// -// To determine whether an object has been flagged for deletion, call -// GetShader with arguments shader and GL.DELETE_STATUS. -// -// Error GL.INVALID_VALUE is generated if shader is not a value generated by -// OpenGL. -// -// DeleteShader is available in GL version 2.0 or greater. -func (gl *GL) DeleteShader(shader glbase.Shader) { - C.gles2_glDeleteShader(gl.funcs, C.GLuint(shader)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glDepthRangef.xml -func (gl *GL) DepthRangef(zNear, zFar glbase.Clampf) { - C.gles2_glDepthRangef(gl.funcs, C.GLclampf(zNear), C.GLclampf(zFar)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glDetachShader.xml -func (gl *GL) DetachShader(program glbase.Program, shader glbase.Shader) { - C.gles2_glDetachShader(gl.funcs, C.GLuint(program), C.GLuint(shader)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glDisableVertexAttribArray.xml -func (gl *GL) DisableVertexAttribArray(index glbase.Attrib) { - C.gles2_glDisableVertexAttribArray(gl.funcs, C.GLuint(index)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glEnableVertexAttribArray.xml -func (gl *GL) EnableVertexAttribArray(index glbase.Attrib) { - C.gles2_glEnableVertexAttribArray(gl.funcs, C.GLuint(index)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glFramebufferRenderbuffer.xml -func (gl *GL) FramebufferRenderbuffer(target, attachment, renderbuffertarget glbase.Enum, renderbuffer glbase.Renderbuffer) { - C.gles2_glFramebufferRenderbuffer(gl.funcs, C.GLenum(target), C.GLenum(attachment), C.GLenum(renderbuffertarget), C.GLuint(renderbuffer)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glFramebufferTexture2D.xml -func (gl *GL) FramebufferTexture2D(target, attachment, textarget glbase.Enum, texture glbase.Texture, level int) { - C.gles2_glFramebufferTexture2D(gl.funcs, C.GLenum(target), C.GLenum(attachment), C.GLenum(textarget), C.GLuint(texture), C.GLint(level)) -} - -// GenBuffers returns n buffer object names. There is no guarantee that -// the names form a contiguous set of integers; however, it is guaranteed -// that none of the returned names was in use immediately before the call to -// GenBuffers. -// -// Buffer object names returned by a call to GenBuffers are not returned by -// subsequent calls, unless they are first deleted with DeleteBuffers. -// -// No buffer objects are associated with the returned buffer object names -// until they are first bound by calling BindBuffer. -// -// Error GL.INVALID_VALUE is generated if n is negative. GL.INVALID_OPERATION -// is generated if GenBuffers is executed between the execution of Begin -// and the corresponding execution of End. -// -// GenBuffers is available in GL version 1.5 or greater. -func (gl *GL) GenBuffers(n int) []glbase.Buffer { - if n == 0 { - return nil - } - buffers := make([]glbase.Buffer, n) - C.gles2_glGenBuffers(gl.funcs, C.GLsizei(n), (*C.GLuint)(unsafe.Pointer(&buffers[0]))) - return buffers -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glGenerateMipmap.xml -func (gl *GL) GenerateMipmap(target glbase.Enum) { - C.gles2_glGenerateMipmap(gl.funcs, C.GLenum(target)) -} - -// GenFramebuffers returns n framebuffer object names in ids. There is no -// guarantee that the names form a contiguous set of integers; however, it is -// guaranteed that none of the returned names was in use immediately before -// the call to GenFramebuffers. -// -// Framebuffer object names returned by a call to GenFramebuffers are not -// returned by subsequent calls, unless they are first deleted with -// DeleteFramebuffers. -// -// The names returned in ids are marked as used, for the purposes of -// GenFramebuffers only, but they acquire state and type only when they are -// first bound. -// -// Error GL.INVALID_VALUE is generated if n is negative. -func (gl *GL) GenFramebuffers(n int) []glbase.Framebuffer { - if n == 0 { - return nil - } - framebuffers := make([]glbase.Framebuffer, n) - C.gles2_glGenFramebuffers(gl.funcs, C.GLsizei(n), (*C.GLuint)(unsafe.Pointer(&framebuffers[0]))) - return framebuffers -} - -// GenRenderbuffers returns n renderbuffer object names in renderbuffers. -// There is no guarantee that the names form a contiguous set of integers; -// however, it is guaranteed that none of the returned names was in use -// immediately before the call to GenRenderbuffers. -// -// Renderbuffer object names returned by a call to GenRenderbuffers are not -// returned by subsequent calls, unless they are first deleted with -// DeleteRenderbuffers. -// -// The names returned in renderbuffers are marked as used, for the purposes -// of GenRenderbuffers only, but they acquire state and type only when they -// are first bound. -// -// Error GL.INVALID_VALUE is generated if n is negative. -// -// GenRenderbuffers is available in GL version 3.0 or greater. -func (gl *GL) GenRenderbuffers(n int) []glbase.Renderbuffer { - if n == 0 { - return nil - } - renderbuffers := make([]glbase.Renderbuffer, n) - C.gles2_glGenRenderbuffers(gl.funcs, C.GLsizei(n), (*C.GLuint)(unsafe.Pointer(&renderbuffers[0]))) - return renderbuffers -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glGetActiveAttrib.xml -func (gl *GL) GetActiveAttrib(program glbase.Program, index glbase.Attrib, bufSize int32, length []int32, size []int, gltype []glbase.Enum, name []byte) { - C.gles2_glGetActiveAttrib(gl.funcs, C.GLuint(program), C.GLuint(index), C.GLsizei(bufSize), (*C.GLsizei)(unsafe.Pointer(&length[0])), (*C.GLint)(unsafe.Pointer(&size[0])), (*C.GLenum)(unsafe.Pointer(&gltype[0])), (*C.GLchar)(unsafe.Pointer(&name[0]))) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glGetActiveUniform.xml -func (gl *GL) GetActiveUniform(program glbase.Program, index uint32, bufSize int32, length []int32, size []int, gltype []glbase.Enum, name []byte) { - C.gles2_glGetActiveUniform(gl.funcs, C.GLuint(program), C.GLuint(index), C.GLsizei(bufSize), (*C.GLsizei)(unsafe.Pointer(&length[0])), (*C.GLint)(unsafe.Pointer(&size[0])), (*C.GLenum)(unsafe.Pointer(&gltype[0])), (*C.GLchar)(unsafe.Pointer(&name[0]))) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glGetAttachedShaders.xml -func (gl *GL) GetAttachedShaders(program glbase.Program, maxcount int32, count []int, shaders []glbase.Shader) { - C.gles2_glGetAttachedShaders(gl.funcs, C.GLuint(program), C.GLsizei(maxcount), (*C.GLsizei)(unsafe.Pointer(&count[0])), (*C.GLuint)(unsafe.Pointer(&shaders[0]))) -} - -// GetAttribLocation queries the previously linked program object specified -// by program for the attribute variable specified by name and returns the -// index of the generic vertex attribute that is bound to that attribute -// variable. If name is a matrix attribute variable, the index of the first -// column of the matrix is returned. If the named attribute variable is not -// an active attribute in the specified program object or if name starts with -// the reserved prefix "gl_", a value of -1 is returned. -// -// The association between an attribute variable name and a generic attribute -// index can be specified at any time by calling BindAttribLocation. -// Attribute bindings do not go into effect until LinkProgram is called. -// After a program object has been linked successfully, the index values for -// attribute variables remain fixed until the next link command occurs. The -// attribute values can only be queried after a link if the link was -// successful. GetAttribLocation returns the binding that actually went -// into effect the last time LinkProgram was called for the specified -// program object. Attribute bindings that have been specified since the last -// link operation are not returned by GetAttribLocation. -// -// Error GL_INVALID_OPERATION is generated if program is not a value -// generated by OpenGL. GL_INVALID_OPERATION is generated if program is not -// a program object. GL_INVALID_OPERATION is generated if program has not -// been successfully linked. GL_INVALID_OPERATION is generated if -// GetAttribLocation is executed between the execution of Begin and the -// corresponding execution of End. -// -// GetAttribLocation is available in GL version 2.0 or greater. -func (gl *GL) GetAttribLocation(program glbase.Program, name string) glbase.Attrib { - name_cstr := C.CString(name) - glresult := C.gles2_glGetAttribLocation(gl.funcs, C.GLuint(program), (*C.GLchar)(name_cstr)) - C.free(unsafe.Pointer(name_cstr)) - return glbase.Attrib(glresult) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glGetBufferParameteriv.xml -func (gl *GL) GetBufferParameteriv(target, pname glbase.Enum, params []int32) { - C.gles2_glGetBufferParameteriv(gl.funcs, C.GLenum(target), C.GLenum(pname), (*C.GLint)(unsafe.Pointer(¶ms[0]))) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glGetFramebufferAttachmentParameteriv.xml -func (gl *GL) GetFramebufferAttachmentParameteriv(target, attachment, pname glbase.Enum, params []int32) { - C.gles2_glGetFramebufferAttachmentParameteriv(gl.funcs, C.GLenum(target), C.GLenum(attachment), C.GLenum(pname), (*C.GLint)(unsafe.Pointer(¶ms[0]))) -} - -// GetProgramiv returns in params the value of a parameter for a specific -// program object. The following parameters are defined: -// -// GL.DELETE_STATUS -// params returns GL.TRUE if program is currently flagged for deletion, -// and GL.FALSE otherwise. -// -// GL.LINK_STATUS -// params returns GL.TRUE if the last link operation on program was -// successful, and GL.FALSE otherwise. -// -// GL.VALIDATE_STATUS -// params returns GL.TRUE or if the last validation operation on -// program was successful, and GL.FALSE otherwise. -// -// GL.INFO_LOG_LENGTH -// params returns the number of characters in the information log for -// program including the null termination character (the size of -// the character buffer required to store the information log). If -// program has no information log, a value of 0 is returned. -// -// GL.ATTACHED_SHADERS -// params returns the number of shader objects attached to program. -// -// GL.ACTIVE_ATTRIBUTES -// params returns the number of active attribute variables for program. -// -// GL.ACTIVE_ATTRIBUTE_MAX_LENGTH -// params returns the length of the longest active attribute name for -// program, including the null termination character (the size of -// the character buffer required to store the longest attribute name). -// If no active attributes exist, 0 is returned. -// -// GL.ACTIVE_UNIFORMS -// params returns the number of active uniform variables for program. -// -// GL.ACTIVE_UNIFORM_MAX_LENGTH -// params returns the length of the longest active uniform variable -// name for program, including the null termination character (i.e., -// the size of the character buffer required to store the longest -// uniform variable name). If no active uniform variables exist, 0 is -// returned. -// -// GL.TRANSFORM_FEEDBACK_BUFFER_MODE -// params returns a symbolic constant indicating the buffer mode used -// when transform feedback is active. This may be GL.SEPARATE_ATTRIBS -// or GL.INTERLEAVED_ATTRIBS. -// -// GL.TRANSFORM_FEEDBACK_VARYINGS -// params returns the number of varying variables to capture in transform -// feedback mode for the program. -// -// GL.TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH -// params returns the length of the longest variable name to be used for -// transform feedback, including the null-terminator. -// -// GL.GEOMETRY_VERTICES_OUT -// params returns the maximum number of vertices that the geometry shader in -// program will output. -// -// GL.GEOMETRY_INPUT_TYPE -// params returns a symbolic constant indicating the primitive type accepted -// as input to the geometry shader contained in program. -// -// GL.GEOMETRY_OUTPUT_TYPE -// params returns a symbolic constant indicating the primitive type that will -// be output by the geometry shader contained in program. -// -// GL.ACTIVE_UNIFORM_BLOCKS and GL.ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH are -// available only if the GL version 3.1 or greater. -// -// GL.GEOMETRY_VERTICES_OUT, GL.GEOMETRY_INPUT_TYPE and -// GL.GEOMETRY_OUTPUT_TYPE are accepted only if the GL version is 3.2 or -// greater. -// -// Error GL.INVALID_VALUE is generated if program is not a value generated by -// OpenGL. GL.INVALID_OPERATION is generated if program does not refer to a -// program object. GL.INVALID_OPERATION is generated if pname is -// GL.GEOMETRY_VERTICES_OUT, GL.GEOMETRY_INPUT_TYPE, or -// GL.GEOMETRY_OUTPUT_TYPE, and program does not contain a geometry shader. -// GL.INVALID_ENUM is generated if pname is not an accepted value. -func (gl *GL) GetProgramiv(program glbase.Program, pname glbase.Enum, params []int32) { - var params_c [4]int32 - C.gles2_glGetProgramiv(gl.funcs, C.GLuint(program), C.GLenum(pname), (*C.GLint)(unsafe.Pointer(¶ms_c[0]))) - copy(params, params_c[:]) -} - -// GetProgramInfoLog returns the information log for the specified program -// object. The information log for a program object is modified when the -// program object is linked or validated. -// -// The information log for a program object is either an empty string, or a -// string containing information about the last link operation, or a string -// containing information about the last validation operation. It may contain -// diagnostic messages, warning messages, and other information. When a -// program object is created, its information log will be a string of length -// 0, and the size of the current log can be obtained by calling GetProgramiv -// with the value GL.INFO_LOG_LENGTH. -// -// Error GL.INVALID_VALUE is generated if program is not a value generated -// by OpenGL. GL.INVALID_OPERATION is generated if program is not a -// program object. -func (gl *GL) GetProgramInfoLog(program glbase.Program) []byte { - var params [1]int32 - var length int32 - gl.GetProgramiv(program, INFO_LOG_LENGTH, params[:]) - bufSize := params[0] - infoLog := make([]byte, int(bufSize)) - C.gles2_glGetProgramInfoLog(gl.funcs, C.GLuint(program), C.GLsizei(bufSize), (*C.GLsizei)(unsafe.Pointer(&length)), (*C.GLchar)(unsafe.Pointer(&infoLog[0]))) - return infoLog -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glGetRenderbufferParameteriv.xml -func (gl *GL) GetRenderbufferParameteriv(target, pname glbase.Enum, params []int32) { - C.gles2_glGetRenderbufferParameteriv(gl.funcs, C.GLenum(target), C.GLenum(pname), (*C.GLint)(unsafe.Pointer(¶ms[0]))) -} - -// GetShaderiv GetShader returns in params the value of a parameter for a specific -// shader object. The following parameters are defined: -// -// GL.SHADER_TYPE -// params returns GL.VERTEX_SHADER if shader is a vertex shader object, -// and GL.FRAGMENT_SHADER if shader is a fragment shader object. -// -// GL.DELETE_STATUS -// params returns GL.TRUE if shader is currently flagged for deletion, -// and GL.FALSE otherwise. -// -// GL.COMPILE_STATUS -// params returns GL.TRUE if the last compile operation on shader was -// successful, and GL.FALSE otherwise. -// -// GL.INFO_LOG_LENGTH -// params returns the number of characters in the information log for -// shader including the null termination character (the size of the -// character buffer required to store the information log). If shader has -// no information log, a value of 0 is returned. -// -// GL.SHADER_SOURCE_LENGTH -// params returns the length of the concatenation of the source strings -// that make up the shader source for the shader, including the null -// termination character. (the size of the character buffer -// required to store the shader source). If no source code exists, 0 is -// returned. -// -// Error GL.INVALID_VALUE is generated if shader is not a value generated by -// OpenGL. GL.INVALID_OPERATION is generated if shader does not refer to a -// shader object. GL.INVALID_ENUM is generated if pname is not an accepted -// value. GL.INVALID_OPERATION is generated if GetShader is executed -// between the execution of Begin and the corresponding execution of End. -// -// GetShaderiv is available in GL version 2.0 or greater. -func (gl *GL) GetShaderiv(shader glbase.Shader, pname glbase.Enum, params []int32) { - var params_c [4]int32 - C.gles2_glGetShaderiv(gl.funcs, C.GLuint(shader), C.GLenum(pname), (*C.GLint)(unsafe.Pointer(¶ms_c[0]))) - copy(params, params_c[:]) -} - -// GetShaderInfoLog returns the information log for the specified shader -// object. The information log for a shader object is modified when the -// shader is compiled. -// -// The information log for a shader object is a string that may contain -// diagnostic messages, warning messages, and other information about the -// last compile operation. When a shader object is created, its information -// log will be a string of length 0, and the size of the current log can be -// obtained by calling GetShaderiv with the value GL.INFO_LOG_LENGTH. -// -// The information log for a shader object is the OpenGL implementer's -// primary mechanism for conveying information about the compilation process. -// Therefore, the information log can be helpful to application developers -// during the development process, even when compilation is successful. -// Application developers should not expect different OpenGL implementations -// to produce identical information logs. -// -// Error GL.INVALID_VALUE is generated if shader is not a value generated by -// OpenGL. GL.INVALID_OPERATION is generated if shader is not a shader -// object. GL.INVALID_VALUE is generated if maxLength is less than 0. -// GL.INVALID_OPERATION is generated if GetShaderInfoLog is executed -// between the execution of Begin and the corresponding execution of End. -// -// GetShaderInfoLog is available in GL version 2.0 or greater. -func (gl *GL) GetShaderInfoLog(shader glbase.Shader) []byte { - var params [1]int32 - var length int32 - gl.GetShaderiv(shader, INFO_LOG_LENGTH, params[:]) - bufSize := params[0] - infoLog := make([]byte, int(bufSize)) - C.gles2_glGetShaderInfoLog(gl.funcs, C.GLuint(shader), C.GLsizei(bufSize), (*C.GLsizei)(unsafe.Pointer(&length)), (*C.GLchar)(unsafe.Pointer(&infoLog[0]))) - return infoLog -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glGetShaderPrecisionFormat.xml -func (gl *GL) GetShaderPrecisionFormat(shadertype, precisionType glbase.Enum, range_, precision []int32) { - C.gles2_glGetShaderPrecisionFormat(gl.funcs, C.GLenum(shadertype), C.GLenum(precisionType), (*C.GLint)(unsafe.Pointer(&range_[0])), (*C.GLint)(unsafe.Pointer(&precision[0]))) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glGetShaderSource.xml -func (gl *GL) GetShaderSource(shader glbase.Shader, bufSize int32, length []int32, source []byte) { - C.gles2_glGetShaderSource(gl.funcs, C.GLuint(shader), C.GLsizei(bufSize), (*C.GLsizei)(unsafe.Pointer(&length[0])), (*C.GLchar)(unsafe.Pointer(&source[0]))) -} - -// GetUniformfv returns in params the value of the specified uniform -// variable. The type of the uniform variable specified by location -// determines the number of values returned. If the uniform variable is -// defined in the shader as a boolean, int, or float, a single value will be -// returned. If it is defined as a vec2, ivec2, or bvec2, two values will be -// returned. If it is defined as a vec3, ivec3, or bvec3, three values will -// be returned, and so on. To query values stored in uniform variables -// declared as arrays, call GetUniformfv for each element of the array. To -// query values stored in uniform variables declared as structures, call -// GetUniformfv for each field in the structure. The values for uniform -// variables declared as a matrix will be returned in column major order. -// -// The locations assigned to uniform variables are not known until the -// program object is linked. After linking has occurred, the command -// GetUniformLocation can be used to obtain the location of a uniform -// variable. This location value can then be passed to GetUniformfv in order -// to query the current value of the uniform variable. After a program object -// has been linked successfully, the index values for uniform variables -// remain fixed until the next link command occurs. The uniform variable -// values can only be queried after a link if the link was successful. -// -// Error GL.INVALID_VALUE is generated if program is not a value generated by -// OpenGL. GL.INVALID_OPERATION is generated if program is not a program -// object. GL.INVALID_OPERATION is generated if program has not been -// successfully linked. GL.INVALID_OPERATION is generated if location does -// not correspond to a valid uniform variable location for the specified -// program object. GL.INVALID_OPERATION is generated if GetUniformfv is -// executed between the execution of Begin and the corresponding execution of -// End. -// -// GetUniformfv is available in GL version 2.0 or greater. -func (gl *GL) GetUniformfv(program glbase.Program, location glbase.Uniform, params []float32) { - var params_c [4]float32 - C.gles2_glGetUniformfv(gl.funcs, C.GLuint(program), C.GLint(location), (*C.GLfloat)(unsafe.Pointer(¶ms_c[0]))) - copy(params, params_c[:]) -} - -// GetUniformiv returns in params the value of the specified uniform -// variable. The type of the uniform variable specified by location -// determines the number of values returned. If the uniform variable is -// defined in the shader as a boolean, int, or float, a single value will be -// returned. If it is defined as a vec2, ivec2, or bvec2, two values will be -// returned. If it is defined as a vec3, ivec3, or bvec3, three values will -// be returned, and so on. To query values stored in uniform variables -// declared as arrays, call GetUniformiv for each element of the array. To -// query values stored in uniform variables declared as structures, call -// GetUniformiv for each field in the structure. The values for uniform -// variables declared as a matrix will be returned in column major order. -// -// The locations assigned to uniform variables are not known until the -// program object is linked. After linking has occurred, the command -// GetUniformLocation can be used to obtain the location of a uniform -// variable. This location value can then be passed to GetUniformiv in order -// to query the current value of the uniform variable. After a program object -// has been linked successfully, the index values for uniform variables -// remain fixed until the next link command occurs. The uniform variable -// values can only be queried after a link if the link was successful. -// -// Error GL.INVALID_VALUE is generated if program is not a value generated by -// OpenGL. GL.INVALID_OPERATION is generated if program is not a program -// object. GL.INVALID_OPERATION is generated if program has not been -// successfully linked. GL.INVALID_OPERATION is generated if location does -// not correspond to a valid uniform variable location for the specified -// program object. GL.INVALID_OPERATION is generated if GetUniformiv is -// executed between the execution of Begin and the corresponding execution of -// End. -// -// GetUniformiv is available in GL version 2.0 or greater. -func (gl *GL) GetUniformiv(program glbase.Program, location glbase.Uniform, params []int32) { - var params_c [4]int32 - C.gles2_glGetUniformiv(gl.funcs, C.GLuint(program), C.GLint(location), (*C.GLint)(unsafe.Pointer(¶ms_c[0]))) - copy(params, params_c[:]) -} - -// GetUniformLocation returns an integer that represents the location of a -// specific uniform variable within a program object. name must be an active -// uniform variable name in program that is not a structure, an array of -// structures, or a subcomponent of a vector or a matrix. This function -// returns -1 if name does not correspond to an active uniform variable in -// program or if name starts with the reserved prefix "gl_". -// -// Uniform variables that are structures or arrays of structures may be -// queried by calling GetUniformLocation for each field within the -// structure. The array element operator "[]" and the structure field -// operator "." may be used in name in order to select elements within an -// array or fields within a structure. The result of using these operators is -// not allowed to be another structure, an array of structures, or a -// subcomponent of a vector or a matrix. Except if the last part of name -// indicates a uniform variable array, the location of the first element of -// an array can be retrieved by using the name of the array, or by using the -// name appended by "[0]". -// -// The actual locations assigned to uniform variables are not known until the -// program object is linked successfully. After linking has occurred, the -// command GetUniformLocation can be used to obtain the location of a -// uniform variable. This location value can then be passed to Uniform to -// set the value of the uniform variable or to GetUniform in order to query -// the current value of the uniform variable. After a program object has been -// linked successfully, the index values for uniform variables remain fixed -// until the next link command occurs. Uniform variable locations and values -// can only be queried after a link if the link was successful. -// -// Error GL.INVALID_VALUE is generated if program is not a value generated by -// OpenGL. GL.INVALID_OPERATION is generated if program is not a program object. -// GL.INVALID_OPERATION is generated if program has not been successfully -// linked. GL.INVALID_OPERATION is generated if GetUniformLocation is executed -// between the execution of Begin and the corresponding execution of End. -// -// GetUniformLocation is available in GL version 2.0 or greater. -func (gl *GL) GetUniformLocation(program glbase.Program, name string) glbase.Uniform { - name_cstr := C.CString(name) - glresult := C.gles2_glGetUniformLocation(gl.funcs, C.GLuint(program), (*C.GLchar)(name_cstr)) - C.free(unsafe.Pointer(name_cstr)) - return glbase.Uniform(glresult) -} - -// GetVertexAttribfv returns in params the value of a generic vertex attribute -// parameter. The generic vertex attribute to be queried is specified by -// index, and the parameter to be queried is specified by pname. -// -// The accepted parameter names are as follows: -// -// GL.VERTEX_ATTRIB_ARRAY_BUFFER_BINDING -// params returns a single value, the name of the buffer object -// currently bound to the binding point corresponding to generic vertex -// attribute array index. If no buffer object is bound, 0 is returned. -// The initial value is 0. -// -// GL.VERTEX_ATTRIB_ARRAY_ENABLED -// params returns a single value that is non-zero (true) if the vertex -// attribute array for index is enabled and 0 (false) if it is -// disabled. The initial value is 0. -// -// GL.VERTEX_ATTRIB_ARRAY_SIZE -// params returns a single value, the size of the vertex attribute -// array for index. The size is the number of values for each element -// of the vertex attribute array, and it will be 1, 2, 3, or 4. The -// initial value is 4. -// -// GL.VERTEX_ATTRIB_ARRAY_STRIDE -// params returns a single value, the array stride for (number of bytes -// between successive elements in) the vertex attribute array for -// index. A value of 0 indicates that the array elements are stored -// sequentially in memory. The initial value is 0. -// -// GL.VERTEX_ATTRIB_ARRAY_TYPE -// params returns a single value, a symbolic constant indicating the -// array type for the vertex attribute array for index. Possible values -// are GL.BYTE, GL.UNSIGNED_BYTE, GL.SHORT, GL.UNSIGNED_SHORT, GL.INT, -// GL.UNSIGNED_INT, GL.FLOAT, and GL.DOUBLE. The initial value is -// GL.FLOAT. -// -// GL.VERTEX_ATTRIB_ARRAY_NORMALIZED -// params returns a single value that is non-zero (true) if fixed-point -// data types for the vertex attribute array indicated by index are -// normalized when they are converted to floating point, and 0 (false) -// otherwise. The initial value is 0. -// -// GL.CURRENT_VERTEX_ATTRIB -// params returns four values that represent the current value for the -// generic vertex attribute specified by index. Generic vertex -// attribute 0 is unique in that it has no current state, so an error -// will be generated if index is 0. The initial value for all other -// generic vertex attributes is (0,0,0,1). -// -// All of the parameters except GL.CURRENT_VERTEX_ATTRIB represent -// client-side state. -// -// Error GL.INVALID_VALUE is generated if index is greater than or equal to -// GL.MAX_VERTEX_ATTRIBS. GL.INVALID_ENUM is generated if pname is not an -// accepted value. GL.INVALID_OPERATION is generated if index is 0 and pname -// is GL.CURRENT_VERTEX_ATTRIB. -// -// GetVertexAttribfv is available in GL version 2.0 or greater. -func (gl *GL) GetVertexAttribfv(index glbase.Attrib, pname glbase.Enum, params []float32) { - var params_c [4]float32 - C.gles2_glGetVertexAttribfv(gl.funcs, C.GLuint(index), C.GLenum(pname), (*C.GLfloat)(unsafe.Pointer(¶ms_c[0]))) - copy(params, params_c[:]) -} - -// GetVertexAttribiv returns in params the value of a generic vertex attribute -// parameter. The generic vertex attribute to be queried is specified by -// index, and the parameter to be queried is specified by pname. -// -// The accepted parameter names are as follows: -// -// GL.VERTEX_ATTRIB_ARRAY_BUFFER_BINDING -// params returns a single value, the name of the buffer object -// currently bound to the binding point corresponding to generic vertex -// attribute array index. If no buffer object is bound, 0 is returned. -// The initial value is 0. -// -// GL.VERTEX_ATTRIB_ARRAY_ENABLED -// params returns a single value that is non-zero (true) if the vertex -// attribute array for index is enabled and 0 (false) if it is -// disabled. The initial value is 0. -// -// GL.VERTEX_ATTRIB_ARRAY_SIZE -// params returns a single value, the size of the vertex attribute -// array for index. The size is the number of values for each element -// of the vertex attribute array, and it will be 1, 2, 3, or 4. The -// initial value is 4. -// -// GL.VERTEX_ATTRIB_ARRAY_STRIDE -// params returns a single value, the array stride for (number of bytes -// between successive elements in) the vertex attribute array for -// index. A value of 0 indicates that the array elements are stored -// sequentially in memory. The initial value is 0. -// -// GL.VERTEX_ATTRIB_ARRAY_TYPE -// params returns a single value, a symbolic constant indicating the -// array type for the vertex attribute array for index. Possible values -// are GL.BYTE, GL.UNSIGNED_BYTE, GL.SHORT, GL.UNSIGNED_SHORT, GL.INT, -// GL.UNSIGNED_INT, GL.FLOAT, and GL.DOUBLE. The initial value is -// GL.FLOAT. -// -// GL.VERTEX_ATTRIB_ARRAY_NORMALIZED -// params returns a single value that is non-zero (true) if fixed-point -// data types for the vertex attribute array indicated by index are -// normalized when they are converted to floating point, and 0 (false) -// otherwise. The initial value is 0. -// -// GL.CURRENT_VERTEX_ATTRIB -// params returns four values that represent the current value for the -// generic vertex attribute specified by index. Generic vertex -// attribute 0 is unique in that it has no current state, so an error -// will be generated if index is 0. The initial value for all other -// generic vertex attributes is (0,0,0,1). -// -// All of the parameters except GL.CURRENT_VERTEX_ATTRIB represent -// client-side state. -// -// Error GL.INVALID_VALUE is generated if index is greater than or equal to -// GL.MAX_VERTEX_ATTRIBS. GL.INVALID_ENUM is generated if pname is not an -// accepted value. GL.INVALID_OPERATION is generated if index is 0 and pname -// is GL.CURRENT_VERTEX_ATTRIB. -// -// GetVertexAttribiv is available in GL version 2.0 or greater. -func (gl *GL) GetVertexAttribiv(index glbase.Attrib, pname glbase.Enum, params []int32) { - var params_c [4]int32 - C.gles2_glGetVertexAttribiv(gl.funcs, C.GLuint(index), C.GLenum(pname), (*C.GLint)(unsafe.Pointer(¶ms_c[0]))) - copy(params, params_c[:]) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glIsBuffer.xml -func (gl *GL) IsBuffer(buffer glbase.Buffer) bool { - glresult := C.gles2_glIsBuffer(gl.funcs, C.GLuint(buffer)) - return *(*bool)(unsafe.Pointer(&glresult)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glIsFramebuffer.xml -func (gl *GL) IsFramebuffer(framebuffer glbase.Framebuffer) bool { - glresult := C.gles2_glIsFramebuffer(gl.funcs, C.GLuint(framebuffer)) - return *(*bool)(unsafe.Pointer(&glresult)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glIsProgram.xml -func (gl *GL) IsProgram(program glbase.Program) bool { - glresult := C.gles2_glIsProgram(gl.funcs, C.GLuint(program)) - return *(*bool)(unsafe.Pointer(&glresult)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glIsRenderbuffer.xml -func (gl *GL) IsRenderbuffer(renderbuffer glbase.Renderbuffer) bool { - glresult := C.gles2_glIsRenderbuffer(gl.funcs, C.GLuint(renderbuffer)) - return *(*bool)(unsafe.Pointer(&glresult)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glIsShader.xml -func (gl *GL) IsShader(shader glbase.Shader) bool { - glresult := C.gles2_glIsShader(gl.funcs, C.GLuint(shader)) - return *(*bool)(unsafe.Pointer(&glresult)) -} - -// LinkProgram links the program object specified by program. If any shader -// objects of type GL.VERTEX_SHADER are attached to program, they will be -// used to create an executable that will run on the programmable vertex -// processor. If any shader objects of type GL.FRAGMENT_SHADER are attached -// to program, they will be used to create an executable that will run on the -// programmable fragment processor. -// -// The status of the link operation will be stored as part of the program -// object's state. This value will be set to GL.TRUE if the program object -// was linked without errors and is ready for use, and GL.FALSE otherwise. It -// can be queried by calling GetProgramiv with arguments program and -// GL.LINK_STATUS. -// -// As a result of a successful link operation, all active user-defined -// uniform variables belonging to program will be initialized to 0, and each -// of the program object's active uniform variables will be assigned a -// location that can be queried by calling GetUniformLocation. Also, any -// active user-defined attribute variables that have not been bound to a -// generic vertex attribute index will be bound to one at this time. -// -// Linking of a program object can fail for a number of reasons as specified -// in the OpenGL Shading Language Specification. The following lists some of -// the conditions that will cause a link error. -// -// - The number of active attribute variables supported by the -// implementation has been exceeded. -// -// - The storage limit for uniform variables has been exceeded. -// -// - The number of active uniform variables supported by the implementation -// has been exceeded. -// -// - The main function is missing for the vertex shader or the fragment -// shader. -// -// - A varying variable actually used in the fragment shader is not -// declared in the same way (or is not declared at all) in the vertex -// shader. -// -// - A reference to a function or variable name is unresolved. -// -// - A shared global is declared with two different types or two different -// initial values. -// -// - One or more of the attached shader objects has not been successfully -// compiled. -// -// - Binding a generic attribute matrix caused some rows of the matrix to -// fall outside the allowed maximum of GL.MAX_VERTEX_ATTRIBS. -// -// - Not enough contiguous vertex attribute slots could be found to bind -// attribute matrices. -// -// When a program object has been successfully linked, the program object can -// be made part of current state by calling UseProgram. Whether or not the -// link operation was successful, the program object's information log will -// be overwritten. The information log can be retrieved by calling -// GetProgramInfoLog. -// -// LinkProgram will also install the generated executables as part of the -// current rendering state if the link operation was successful and the -// specified program object is already currently in use as a result of a -// previous call to UseProgram. If the program object currently in use is -// relinked unsuccessfully, its link status will be set to GL.FALSE , but the -// executables and associated state will remain part of the current state -// until a subsequent call to UseProgram removes it from use. After it is -// removed from use, it cannot be made part of current state until it has -// been successfully relinked. -// -// If program contains shader objects of type GL.VERTEX_SHADER but does not -// contain shader objects of type GL.FRAGMENT_SHADER, the vertex shader will -// be linked against the implicit interface for fixed functionality fragment -// processing. Similarly, if program contains shader objects of type -// GL.FRAGMENT_SHADER but it does not contain shader objects of type -// GL.VERTEX_SHADER, the fragment shader will be linked against the implicit -// interface for fixed functionality vertex processing. -// -// The program object's information log is updated and the program is -// generated at the time of the link operation. After the link operation, -// applications are free to modify attached shader objects, compile attached -// shader objects, detach shader objects, delete shader objects, and attach -// additional shader objects. None of these operations affects the -// information log or the program that is part of the program object. -// -// If the link operation is unsuccessful, any information about a previous -// link operation on program is lost (a failed link does not restore the -// old state of program). Certain information can still be retrieved -// from program even after an unsuccessful link operation. See for instance -// GetActiveAttrib and GetActiveUniform. -// -// Error GL.INVALID_VALUE is generated if program is not a value generated by -// OpenGL. GL.INVALID_OPERATION is generated if program is not a program -// object. GL.INVALID_OPERATION is generated if LinkProgram is executed -// between the execution of Begin and the corresponding execution of End. -// -// LinkProgram is available in GL version 2.0 or greater. -func (gl *GL) LinkProgram(program glbase.Program) { - C.gles2_glLinkProgram(gl.funcs, C.GLuint(program)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glReleaseShaderCompiler.xml -func (gl *GL) ReleaseShaderCompiler() { - C.gles2_glReleaseShaderCompiler(gl.funcs) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glRenderbufferStorage.xml -func (gl *GL) RenderbufferStorage(target, internalFormat glbase.Enum, width, height int) { - C.gles2_glRenderbufferStorage(gl.funcs, C.GLenum(target), C.GLenum(internalFormat), C.GLsizei(width), C.GLsizei(height)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glSampleCoverage.xml -func (gl *GL) SampleCoverage(value glbase.Clampf, invert bool) { - C.gles2_glSampleCoverage(gl.funcs, C.GLclampf(value), *(*C.GLboolean)(unsafe.Pointer(&invert))) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glShaderBinary.xml -func (gl *GL) ShaderBinary(n int, shaders []glbase.Shader, binaryFormat glbase.Enum, binary interface{}, length int32) { - var binary_ptr unsafe.Pointer - var binary_v = reflect.ValueOf(binary) - if binary != nil && binary_v.Kind() != reflect.Slice { - panic("parameter binary must be a slice") - } - if binary != nil { - binary_ptr = unsafe.Pointer(binary_v.Index(0).Addr().Pointer()) - } - C.gles2_glShaderBinary(gl.funcs, C.GLint(n), (*C.GLuint)(unsafe.Pointer(&shaders[0])), C.GLenum(binaryFormat), binary_ptr, C.GLint(length)) -} - -// ShaderSource sets the source code in shader to the provided source code. Any source -// code previously stored in the shader object is completely replaced. -// -// Error GL.INVALID_VALUE is generated if shader is not a value generated by -// OpenGL. GL.INVALID_OPERATION is generated if shader is not a shader -// object. GL.INVALID_VALUE is generated if count is less than 0. -// GL.INVALID_OPERATION is generated if ShaderSource is executed between the -// execution of Begin and the corresponding execution of End. -// -// ShaderSource is available in GL version 2.0 or greater. -func (gl *GL) ShaderSource(shader glbase.Shader, source ...string) { - count := len(source) - length := make([]int32, count) - source_c := make([]unsafe.Pointer, count) - for i, src := range source { - length[i] = int32(len(src)) - if len(src) > 0 { - source_c[i] = *(*unsafe.Pointer)(unsafe.Pointer(&src)) - } else { - source_c[i] = unsafe.Pointer(uintptr(0)) - } - } - C.gles2_glShaderSource(gl.funcs, C.GLuint(shader), C.GLsizei(count), (**C.GLchar)(unsafe.Pointer(&source_c[0])), (*C.GLint)(unsafe.Pointer(&length[0]))) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glStencilFuncSeparate.xml -func (gl *GL) StencilFuncSeparate(face, glfunc glbase.Enum, ref int32, mask uint32) { - C.gles2_glStencilFuncSeparate(gl.funcs, C.GLenum(face), C.GLenum(glfunc), C.GLint(ref), C.GLuint(mask)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glStencilMaskSeparate.xml -func (gl *GL) StencilMaskSeparate(face glbase.Enum, mask uint32) { - C.gles2_glStencilMaskSeparate(gl.funcs, C.GLenum(face), C.GLuint(mask)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glStencilOpSeparate.xml -func (gl *GL) StencilOpSeparate(face, fail, zfail, zpass glbase.Enum) { - C.gles2_glStencilOpSeparate(gl.funcs, C.GLenum(face), C.GLenum(fail), C.GLenum(zfail), C.GLenum(zpass)) -} - -// Uniform1f modifies the value of a single uniform variable. -// The location of the uniform variable to be modified is specified by -// location, which should be a value returned by GetUniformLocation. -// Uniform1f operates on the program object that was made part of -// current state by calling UseProgram. -// -// The functions Uniform{1|2|3|4}{f|i|ui} are used to change the value of the -// uniform variable specified by location using the values passed as -// arguments. The number specified in the function should match the number of -// components in the data type of the specified uniform variable (1 for -// float, int, unsigned int, bool; 2 for vec2, ivec2, uvec2, bvec2, etc.). -// The suffix f indicates that floating-point values are being passed; the -// suffix i indicates that integer values are being passed; the suffix ui -// indicates that unsigned integer values are being passed, and this type -// should also match the data type of the specified uniform variable. The i -// variants of this function should be used to provide values for uniform -// variables defined as int, ivec2, ivec3, ivec4, or arrays of these. The ui -// variants of this function should be used to provide values for uniform -// variables defined as unsigned int, uvec2, uvec3, uvec4, or arrays of -// these. The f variants should be used to provide values for uniform -// variables of type float, vec2, vec3, vec4, or arrays of these. Either the -// i, ui or f variants may be used to provide values for uniform variables of -// type bool, bvec2, bvec3, bvec4, or arrays of these. The uniform variable -// will be set to false if the input value is 0 or 0.0f, and it will be set -// to true otherwise. -// -// Uniform1i and Uniform1iv are the only two functions that may be used to -// load uniform variables defined as sampler types. Loading samplers with any -// other function will result in a GL.INVALID_OPERATION error. -// -// All active uniform variables defined in a program object are initialized -// to 0 when the program object is linked successfully. They retain the -// values assigned to them by a call to Uniform* until the next successful -// link operation occurs on the program object, when they are once again -// initialized to 0. -func (gl *GL) Uniform1f(location glbase.Uniform, v0 float32) { - C.gles2_glUniform1f(gl.funcs, C.GLint(location), C.GLfloat(v0)) -} - -// Uniform1fv modifies the value of a uniform variable or a uniform -// variable array. The location of the uniform variable to be modified is -// specified by location, which should be a value returned by GetUniformLocation. -// Uniform1fv operates on the program object that was made part of -// current state by calling UseProgram. -// -// The functions Uniform{1|2|3|4}{f|i|ui}v can be used to modify a single -// uniform variable or a uniform variable array. These functions receive a -// slice with the values to be loaded into a uniform variable or a uniform -// variable array. A slice with length 1 should be used if modifying the value -// of a single uniform variable, and a length of 1 or greater can be used to -// modify an entire array or part of an array. When loading n elements -// starting at an arbitrary position m in a uniform variable array, elements -// m + n - 1 in the array will be replaced with the new values. If m + n - 1 -// is larger than the size of the uniform variable array, values for all -// array elements beyond the end of the array will be ignored. The number -// specified in the name of the command indicates the number of components -// for each element in value, and it should match the number of components in -// the data type of the specified uniform variable (1 for float, int, bool; -// 2 for vec2, ivec2, bvec2, etc.). The data type specified in the name -// of the command must match the data type for the specified uniform variable -// as described for Uniform{1|2|3|4}{f|i|ui}. -// -// Uniform1i and Uniform1iv are the only two functions that may be used to -// load uniform variables defined as sampler types. Loading samplers with any -// other function will result in a GL.INVALID_OPERATION error. -// -// All active uniform variables defined in a program object are initialized -// to 0 when the program object is linked successfully. They retain the -// values assigned to them by a call to Uniform* until the next successful -// link operation occurs on the program object, when they are once again -// initialized to 0. -func (gl *GL) Uniform1fv(location glbase.Uniform, value []float32) { - if len(value) == 0 { - return - } - count := len(value) - C.gles2_glUniform1fv(gl.funcs, C.GLint(location), C.GLsizei(count), (*C.GLfloat)(unsafe.Pointer(&value[0]))) -} - -// Uniform1i modifies the value of a single uniform variable. -// The location of the uniform variable to be modified is specified by -// location, which should be a value returned by GetUniformLocation. -// Uniform1i operates on the program object that was made part of -// current state by calling UseProgram. -// -// The functions Uniform{1|2|3|4}{f|i|ui} are used to change the value of the -// uniform variable specified by location using the values passed as -// arguments. The number specified in the function should match the number of -// components in the data type of the specified uniform variable (1 for -// float, int, unsigned int, bool; 2 for vec2, ivec2, uvec2, bvec2, etc.). -// The suffix f indicates that floating-point values are being passed; the -// suffix i indicates that integer values are being passed; the suffix ui -// indicates that unsigned integer values are being passed, and this type -// should also match the data type of the specified uniform variable. The i -// variants of this function should be used to provide values for uniform -// variables defined as int, ivec2, ivec3, ivec4, or arrays of these. The ui -// variants of this function should be used to provide values for uniform -// variables defined as unsigned int, uvec2, uvec3, uvec4, or arrays of -// these. The f variants should be used to provide values for uniform -// variables of type float, vec2, vec3, vec4, or arrays of these. Either the -// i, ui or f variants may be used to provide values for uniform variables of -// type bool, bvec2, bvec3, bvec4, or arrays of these. The uniform variable -// will be set to false if the input value is 0 or 0.0f, and it will be set -// to true otherwise. -// -// Uniform1i and Uniform1iv are the only two functions that may be used to -// load uniform variables defined as sampler types. Loading samplers with any -// other function will result in a GL.INVALID_OPERATION error. -// -// All active uniform variables defined in a program object are initialized -// to 0 when the program object is linked successfully. They retain the -// values assigned to them by a call to Uniform* until the next successful -// link operation occurs on the program object, when they are once again -// initialized to 0. -func (gl *GL) Uniform1i(location glbase.Uniform, v0 int32) { - C.gles2_glUniform1i(gl.funcs, C.GLint(location), C.GLint(v0)) -} - -// Uniform1iv modifies the value of a uniform variable or a uniform -// variable array. The location of the uniform variable to be modified is -// specified by location, which should be a value returned by GetUniformLocation. -// Uniform1iv operates on the program object that was made part of -// current state by calling UseProgram. -// -// The functions Uniform{1|2|3|4}{f|i|ui}v can be used to modify a single -// uniform variable or a uniform variable array. These functions receive a -// slice with the values to be loaded into a uniform variable or a uniform -// variable array. A slice with length 1 should be used if modifying the value -// of a single uniform variable, and a length of 1 or greater can be used to -// modify an entire array or part of an array. When loading n elements -// starting at an arbitrary position m in a uniform variable array, elements -// m + n - 1 in the array will be replaced with the new values. If m + n - 1 -// is larger than the size of the uniform variable array, values for all -// array elements beyond the end of the array will be ignored. The number -// specified in the name of the command indicates the number of components -// for each element in value, and it should match the number of components in -// the data type of the specified uniform variable (1 for float, int, bool; -// 2 for vec2, ivec2, bvec2, etc.). The data type specified in the name -// of the command must match the data type for the specified uniform variable -// as described for Uniform{1|2|3|4}{f|i|ui}. -// -// Uniform1i and Uniform1iv are the only two functions that may be used to -// load uniform variables defined as sampler types. Loading samplers with any -// other function will result in a GL.INVALID_OPERATION error. -// -// All active uniform variables defined in a program object are initialized -// to 0 when the program object is linked successfully. They retain the -// values assigned to them by a call to Uniform* until the next successful -// link operation occurs on the program object, when they are once again -// initialized to 0. -func (gl *GL) Uniform1iv(location glbase.Uniform, value []int32) { - if len(value) == 0 { - return - } - count := len(value) - C.gles2_glUniform1iv(gl.funcs, C.GLint(location), C.GLsizei(count), (*C.GLint)(unsafe.Pointer(&value[0]))) -} - -// Uniform2f modifies the value of a single uniform variable. -// The location of the uniform variable to be modified is specified by -// location, which should be a value returned by GetUniformLocation. -// Uniform2f operates on the program object that was made part of -// current state by calling UseProgram. -// -// The functions Uniform{1|2|3|4}{f|i|ui} are used to change the value of the -// uniform variable specified by location using the values passed as -// arguments. The number specified in the function should match the number of -// components in the data type of the specified uniform variable (1 for -// float, int, unsigned int, bool; 2 for vec2, ivec2, uvec2, bvec2, etc.). -// The suffix f indicates that floating-point values are being passed; the -// suffix i indicates that integer values are being passed; the suffix ui -// indicates that unsigned integer values are being passed, and this type -// should also match the data type of the specified uniform variable. The i -// variants of this function should be used to provide values for uniform -// variables defined as int, ivec2, ivec3, ivec4, or arrays of these. The ui -// variants of this function should be used to provide values for uniform -// variables defined as unsigned int, uvec2, uvec3, uvec4, or arrays of -// these. The f variants should be used to provide values for uniform -// variables of type float, vec2, vec3, vec4, or arrays of these. Either the -// i, ui or f variants may be used to provide values for uniform variables of -// type bool, bvec2, bvec3, bvec4, or arrays of these. The uniform variable -// will be set to false if the input value is 0 or 0.0f, and it will be set -// to true otherwise. -// -// Uniform1i and Uniform1iv are the only two functions that may be used to -// load uniform variables defined as sampler types. Loading samplers with any -// other function will result in a GL.INVALID_OPERATION error. -// -// All active uniform variables defined in a program object are initialized -// to 0 when the program object is linked successfully. They retain the -// values assigned to them by a call to Uniform* until the next successful -// link operation occurs on the program object, when they are once again -// initialized to 0. -func (gl *GL) Uniform2f(location glbase.Uniform, v0, v1 float32) { - C.gles2_glUniform2f(gl.funcs, C.GLint(location), C.GLfloat(v0), C.GLfloat(v1)) -} - -// Uniform2fv modifies the value of a uniform variable or a uniform -// variable array. The location of the uniform variable to be modified is -// specified by location, which should be a value returned by GetUniformLocation. -// Uniform2fv operates on the program object that was made part of -// current state by calling UseProgram. -// -// The functions Uniform{1|2|3|4}{f|i|ui}v can be used to modify a single -// uniform variable or a uniform variable array. These functions receive a -// slice with the values to be loaded into a uniform variable or a uniform -// variable array. A slice with length 1 should be used if modifying the value -// of a single uniform variable, and a length of 1 or greater can be used to -// modify an entire array or part of an array. When loading n elements -// starting at an arbitrary position m in a uniform variable array, elements -// m + n - 1 in the array will be replaced with the new values. If m + n - 1 -// is larger than the size of the uniform variable array, values for all -// array elements beyond the end of the array will be ignored. The number -// specified in the name of the command indicates the number of components -// for each element in value, and it should match the number of components in -// the data type of the specified uniform variable (1 for float, int, bool; -// 2 for vec2, ivec2, bvec2, etc.). The data type specified in the name -// of the command must match the data type for the specified uniform variable -// as described for Uniform{1|2|3|4}{f|i|ui}. -// -// Uniform1i and Uniform1iv are the only two functions that may be used to -// load uniform variables defined as sampler types. Loading samplers with any -// other function will result in a GL.INVALID_OPERATION error. -// -// All active uniform variables defined in a program object are initialized -// to 0 when the program object is linked successfully. They retain the -// values assigned to them by a call to Uniform* until the next successful -// link operation occurs on the program object, when they are once again -// initialized to 0. -func (gl *GL) Uniform2fv(location glbase.Uniform, value []float32) { - if len(value) == 0 { - return - } - if len(value)%2 != 0 { - panic("invalid value length for Uniform2fv") - } - count := len(value) / 2 - C.gles2_glUniform2fv(gl.funcs, C.GLint(location), C.GLsizei(count), (*C.GLfloat)(unsafe.Pointer(&value[0]))) -} - -// Uniform2i modifies the value of a single uniform variable. -// The location of the uniform variable to be modified is specified by -// location, which should be a value returned by GetUniformLocation. -// Uniform2i operates on the program object that was made part of -// current state by calling UseProgram. -// -// The functions Uniform{1|2|3|4}{f|i|ui} are used to change the value of the -// uniform variable specified by location using the values passed as -// arguments. The number specified in the function should match the number of -// components in the data type of the specified uniform variable (1 for -// float, int, unsigned int, bool; 2 for vec2, ivec2, uvec2, bvec2, etc.). -// The suffix f indicates that floating-point values are being passed; the -// suffix i indicates that integer values are being passed; the suffix ui -// indicates that unsigned integer values are being passed, and this type -// should also match the data type of the specified uniform variable. The i -// variants of this function should be used to provide values for uniform -// variables defined as int, ivec2, ivec3, ivec4, or arrays of these. The ui -// variants of this function should be used to provide values for uniform -// variables defined as unsigned int, uvec2, uvec3, uvec4, or arrays of -// these. The f variants should be used to provide values for uniform -// variables of type float, vec2, vec3, vec4, or arrays of these. Either the -// i, ui or f variants may be used to provide values for uniform variables of -// type bool, bvec2, bvec3, bvec4, or arrays of these. The uniform variable -// will be set to false if the input value is 0 or 0.0f, and it will be set -// to true otherwise. -// -// Uniform1i and Uniform1iv are the only two functions that may be used to -// load uniform variables defined as sampler types. Loading samplers with any -// other function will result in a GL.INVALID_OPERATION error. -// -// All active uniform variables defined in a program object are initialized -// to 0 when the program object is linked successfully. They retain the -// values assigned to them by a call to Uniform* until the next successful -// link operation occurs on the program object, when they are once again -// initialized to 0. -func (gl *GL) Uniform2i(location glbase.Uniform, v0, v1 int32) { - C.gles2_glUniform2i(gl.funcs, C.GLint(location), C.GLint(v0), C.GLint(v1)) -} - -// Uniform2iv modifies the value of a uniform variable or a uniform -// variable array. The location of the uniform variable to be modified is -// specified by location, which should be a value returned by GetUniformLocation. -// Uniform2iv operates on the program object that was made part of -// current state by calling UseProgram. -// -// The functions Uniform{1|2|3|4}{f|i|ui}v can be used to modify a single -// uniform variable or a uniform variable array. These functions receive a -// slice with the values to be loaded into a uniform variable or a uniform -// variable array. A slice with length 1 should be used if modifying the value -// of a single uniform variable, and a length of 1 or greater can be used to -// modify an entire array or part of an array. When loading n elements -// starting at an arbitrary position m in a uniform variable array, elements -// m + n - 1 in the array will be replaced with the new values. If m + n - 1 -// is larger than the size of the uniform variable array, values for all -// array elements beyond the end of the array will be ignored. The number -// specified in the name of the command indicates the number of components -// for each element in value, and it should match the number of components in -// the data type of the specified uniform variable (1 for float, int, bool; -// 2 for vec2, ivec2, bvec2, etc.). The data type specified in the name -// of the command must match the data type for the specified uniform variable -// as described for Uniform{1|2|3|4}{f|i|ui}. -// -// Uniform1i and Uniform1iv are the only two functions that may be used to -// load uniform variables defined as sampler types. Loading samplers with any -// other function will result in a GL.INVALID_OPERATION error. -// -// All active uniform variables defined in a program object are initialized -// to 0 when the program object is linked successfully. They retain the -// values assigned to them by a call to Uniform* until the next successful -// link operation occurs on the program object, when they are once again -// initialized to 0. -func (gl *GL) Uniform2iv(location glbase.Uniform, value []int32) { - if len(value) == 0 { - return - } - if len(value)%2 != 0 { - panic("invalid value length for Uniform2iv") - } - count := len(value) / 2 - C.gles2_glUniform2iv(gl.funcs, C.GLint(location), C.GLsizei(count), (*C.GLint)(unsafe.Pointer(&value[0]))) -} - -// Uniform3f modifies the value of a single uniform variable. -// The location of the uniform variable to be modified is specified by -// location, which should be a value returned by GetUniformLocation. -// Uniform3f operates on the program object that was made part of -// current state by calling UseProgram. -// -// The functions Uniform{1|2|3|4}{f|i|ui} are used to change the value of the -// uniform variable specified by location using the values passed as -// arguments. The number specified in the function should match the number of -// components in the data type of the specified uniform variable (1 for -// float, int, unsigned int, bool; 2 for vec2, ivec2, uvec2, bvec2, etc.). -// The suffix f indicates that floating-point values are being passed; the -// suffix i indicates that integer values are being passed; the suffix ui -// indicates that unsigned integer values are being passed, and this type -// should also match the data type of the specified uniform variable. The i -// variants of this function should be used to provide values for uniform -// variables defined as int, ivec2, ivec3, ivec4, or arrays of these. The ui -// variants of this function should be used to provide values for uniform -// variables defined as unsigned int, uvec2, uvec3, uvec4, or arrays of -// these. The f variants should be used to provide values for uniform -// variables of type float, vec2, vec3, vec4, or arrays of these. Either the -// i, ui or f variants may be used to provide values for uniform variables of -// type bool, bvec2, bvec3, bvec4, or arrays of these. The uniform variable -// will be set to false if the input value is 0 or 0.0f, and it will be set -// to true otherwise. -// -// Uniform1i and Uniform1iv are the only two functions that may be used to -// load uniform variables defined as sampler types. Loading samplers with any -// other function will result in a GL.INVALID_OPERATION error. -// -// All active uniform variables defined in a program object are initialized -// to 0 when the program object is linked successfully. They retain the -// values assigned to them by a call to Uniform* until the next successful -// link operation occurs on the program object, when they are once again -// initialized to 0. -func (gl *GL) Uniform3f(location glbase.Uniform, v0, v1, v2 float32) { - C.gles2_glUniform3f(gl.funcs, C.GLint(location), C.GLfloat(v0), C.GLfloat(v1), C.GLfloat(v2)) -} - -// Uniform3fv modifies the value of a uniform variable or a uniform -// variable array. The location of the uniform variable to be modified is -// specified by location, which should be a value returned by GetUniformLocation. -// Uniform3fv operates on the program object that was made part of -// current state by calling UseProgram. -// -// The functions Uniform{1|2|3|4}{f|i|ui}v can be used to modify a single -// uniform variable or a uniform variable array. These functions receive a -// slice with the values to be loaded into a uniform variable or a uniform -// variable array. A slice with length 1 should be used if modifying the value -// of a single uniform variable, and a length of 1 or greater can be used to -// modify an entire array or part of an array. When loading n elements -// starting at an arbitrary position m in a uniform variable array, elements -// m + n - 1 in the array will be replaced with the new values. If m + n - 1 -// is larger than the size of the uniform variable array, values for all -// array elements beyond the end of the array will be ignored. The number -// specified in the name of the command indicates the number of components -// for each element in value, and it should match the number of components in -// the data type of the specified uniform variable (1 for float, int, bool; -// 2 for vec2, ivec2, bvec2, etc.). The data type specified in the name -// of the command must match the data type for the specified uniform variable -// as described for Uniform{1|2|3|4}{f|i|ui}. -// -// Uniform1i and Uniform1iv are the only two functions that may be used to -// load uniform variables defined as sampler types. Loading samplers with any -// other function will result in a GL.INVALID_OPERATION error. -// -// All active uniform variables defined in a program object are initialized -// to 0 when the program object is linked successfully. They retain the -// values assigned to them by a call to Uniform* until the next successful -// link operation occurs on the program object, when they are once again -// initialized to 0. -func (gl *GL) Uniform3fv(location glbase.Uniform, value []float32) { - if len(value) == 0 { - return - } - if len(value)%3 != 0 { - panic("invalid value length for Uniform3fv") - } - count := len(value) / 3 - C.gles2_glUniform3fv(gl.funcs, C.GLint(location), C.GLsizei(count), (*C.GLfloat)(unsafe.Pointer(&value[0]))) -} - -// Uniform3i modifies the value of a single uniform variable. -// The location of the uniform variable to be modified is specified by -// location, which should be a value returned by GetUniformLocation. -// Uniform3i operates on the program object that was made part of -// current state by calling UseProgram. -// -// The functions Uniform{1|2|3|4}{f|i|ui} are used to change the value of the -// uniform variable specified by location using the values passed as -// arguments. The number specified in the function should match the number of -// components in the data type of the specified uniform variable (1 for -// float, int, unsigned int, bool; 2 for vec2, ivec2, uvec2, bvec2, etc.). -// The suffix f indicates that floating-point values are being passed; the -// suffix i indicates that integer values are being passed; the suffix ui -// indicates that unsigned integer values are being passed, and this type -// should also match the data type of the specified uniform variable. The i -// variants of this function should be used to provide values for uniform -// variables defined as int, ivec2, ivec3, ivec4, or arrays of these. The ui -// variants of this function should be used to provide values for uniform -// variables defined as unsigned int, uvec2, uvec3, uvec4, or arrays of -// these. The f variants should be used to provide values for uniform -// variables of type float, vec2, vec3, vec4, or arrays of these. Either the -// i, ui or f variants may be used to provide values for uniform variables of -// type bool, bvec2, bvec3, bvec4, or arrays of these. The uniform variable -// will be set to false if the input value is 0 or 0.0f, and it will be set -// to true otherwise. -// -// Uniform1i and Uniform1iv are the only two functions that may be used to -// load uniform variables defined as sampler types. Loading samplers with any -// other function will result in a GL.INVALID_OPERATION error. -// -// All active uniform variables defined in a program object are initialized -// to 0 when the program object is linked successfully. They retain the -// values assigned to them by a call to Uniform* until the next successful -// link operation occurs on the program object, when they are once again -// initialized to 0. -func (gl *GL) Uniform3i(location glbase.Uniform, v0, v1, v2 int32) { - C.gles2_glUniform3i(gl.funcs, C.GLint(location), C.GLint(v0), C.GLint(v1), C.GLint(v2)) -} - -// Uniform3iv modifies the value of a uniform variable or a uniform -// variable array. The location of the uniform variable to be modified is -// specified by location, which should be a value returned by GetUniformLocation. -// Uniform3iv operates on the program object that was made part of -// current state by calling UseProgram. -// -// The functions Uniform{1|2|3|4}{f|i|ui}v can be used to modify a single -// uniform variable or a uniform variable array. These functions receive a -// slice with the values to be loaded into a uniform variable or a uniform -// variable array. A slice with length 1 should be used if modifying the value -// of a single uniform variable, and a length of 1 or greater can be used to -// modify an entire array or part of an array. When loading n elements -// starting at an arbitrary position m in a uniform variable array, elements -// m + n - 1 in the array will be replaced with the new values. If m + n - 1 -// is larger than the size of the uniform variable array, values for all -// array elements beyond the end of the array will be ignored. The number -// specified in the name of the command indicates the number of components -// for each element in value, and it should match the number of components in -// the data type of the specified uniform variable (1 for float, int, bool; -// 2 for vec2, ivec2, bvec2, etc.). The data type specified in the name -// of the command must match the data type for the specified uniform variable -// as described for Uniform{1|2|3|4}{f|i|ui}. -// -// Uniform1i and Uniform1iv are the only two functions that may be used to -// load uniform variables defined as sampler types. Loading samplers with any -// other function will result in a GL.INVALID_OPERATION error. -// -// All active uniform variables defined in a program object are initialized -// to 0 when the program object is linked successfully. They retain the -// values assigned to them by a call to Uniform* until the next successful -// link operation occurs on the program object, when they are once again -// initialized to 0. -func (gl *GL) Uniform3iv(location glbase.Uniform, value []int32) { - if len(value) == 0 { - return - } - if len(value)%3 != 0 { - panic("invalid value length for Uniform3iv") - } - count := len(value) / 3 - C.gles2_glUniform3iv(gl.funcs, C.GLint(location), C.GLsizei(count), (*C.GLint)(unsafe.Pointer(&value[0]))) -} - -// Uniform4f modifies the value of a single uniform variable. -// The location of the uniform variable to be modified is specified by -// location, which should be a value returned by GetUniformLocation. -// Uniform4f operates on the program object that was made part of -// current state by calling UseProgram. -// -// The functions Uniform{1|2|3|4}{f|i|ui} are used to change the value of the -// uniform variable specified by location using the values passed as -// arguments. The number specified in the function should match the number of -// components in the data type of the specified uniform variable (1 for -// float, int, unsigned int, bool; 2 for vec2, ivec2, uvec2, bvec2, etc.). -// The suffix f indicates that floating-point values are being passed; the -// suffix i indicates that integer values are being passed; the suffix ui -// indicates that unsigned integer values are being passed, and this type -// should also match the data type of the specified uniform variable. The i -// variants of this function should be used to provide values for uniform -// variables defined as int, ivec2, ivec3, ivec4, or arrays of these. The ui -// variants of this function should be used to provide values for uniform -// variables defined as unsigned int, uvec2, uvec3, uvec4, or arrays of -// these. The f variants should be used to provide values for uniform -// variables of type float, vec2, vec3, vec4, or arrays of these. Either the -// i, ui or f variants may be used to provide values for uniform variables of -// type bool, bvec2, bvec3, bvec4, or arrays of these. The uniform variable -// will be set to false if the input value is 0 or 0.0f, and it will be set -// to true otherwise. -// -// Uniform1i and Uniform1iv are the only two functions that may be used to -// load uniform variables defined as sampler types. Loading samplers with any -// other function will result in a GL.INVALID_OPERATION error. -// -// All active uniform variables defined in a program object are initialized -// to 0 when the program object is linked successfully. They retain the -// values assigned to them by a call to Uniform* until the next successful -// link operation occurs on the program object, when they are once again -// initialized to 0. -func (gl *GL) Uniform4f(location glbase.Uniform, v0, v1, v2, v3 float32) { - C.gles2_glUniform4f(gl.funcs, C.GLint(location), C.GLfloat(v0), C.GLfloat(v1), C.GLfloat(v2), C.GLfloat(v3)) -} - -// Uniform4fv modifies the value of a uniform variable or a uniform -// variable array. The location of the uniform variable to be modified is -// specified by location, which should be a value returned by GetUniformLocation. -// Uniform4fv operates on the program object that was made part of -// current state by calling UseProgram. -// -// The functions Uniform{1|2|3|4}{f|i|ui}v can be used to modify a single -// uniform variable or a uniform variable array. These functions receive a -// slice with the values to be loaded into a uniform variable or a uniform -// variable array. A slice with length 1 should be used if modifying the value -// of a single uniform variable, and a length of 1 or greater can be used to -// modify an entire array or part of an array. When loading n elements -// starting at an arbitrary position m in a uniform variable array, elements -// m + n - 1 in the array will be replaced with the new values. If m + n - 1 -// is larger than the size of the uniform variable array, values for all -// array elements beyond the end of the array will be ignored. The number -// specified in the name of the command indicates the number of components -// for each element in value, and it should match the number of components in -// the data type of the specified uniform variable (1 for float, int, bool; -// 2 for vec2, ivec2, bvec2, etc.). The data type specified in the name -// of the command must match the data type for the specified uniform variable -// as described for Uniform{1|2|3|4}{f|i|ui}. -// -// Uniform1i and Uniform1iv are the only two functions that may be used to -// load uniform variables defined as sampler types. Loading samplers with any -// other function will result in a GL.INVALID_OPERATION error. -// -// All active uniform variables defined in a program object are initialized -// to 0 when the program object is linked successfully. They retain the -// values assigned to them by a call to Uniform* until the next successful -// link operation occurs on the program object, when they are once again -// initialized to 0. -func (gl *GL) Uniform4fv(location glbase.Uniform, value []float32) { - if len(value) == 0 { - return - } - if len(value)%4 != 0 { - panic("invalid value length for Uniform4fv") - } - count := len(value) / 4 - C.gles2_glUniform4fv(gl.funcs, C.GLint(location), C.GLsizei(count), (*C.GLfloat)(unsafe.Pointer(&value[0]))) -} - -// Uniform4i modifies the value of a single uniform variable. -// The location of the uniform variable to be modified is specified by -// location, which should be a value returned by GetUniformLocation. -// Uniform4i operates on the program object that was made part of -// current state by calling UseProgram. -// -// The functions Uniform{1|2|3|4}{f|i|ui} are used to change the value of the -// uniform variable specified by location using the values passed as -// arguments. The number specified in the function should match the number of -// components in the data type of the specified uniform variable (1 for -// float, int, unsigned int, bool; 2 for vec2, ivec2, uvec2, bvec2, etc.). -// The suffix f indicates that floating-point values are being passed; the -// suffix i indicates that integer values are being passed; the suffix ui -// indicates that unsigned integer values are being passed, and this type -// should also match the data type of the specified uniform variable. The i -// variants of this function should be used to provide values for uniform -// variables defined as int, ivec2, ivec3, ivec4, or arrays of these. The ui -// variants of this function should be used to provide values for uniform -// variables defined as unsigned int, uvec2, uvec3, uvec4, or arrays of -// these. The f variants should be used to provide values for uniform -// variables of type float, vec2, vec3, vec4, or arrays of these. Either the -// i, ui or f variants may be used to provide values for uniform variables of -// type bool, bvec2, bvec3, bvec4, or arrays of these. The uniform variable -// will be set to false if the input value is 0 or 0.0f, and it will be set -// to true otherwise. -// -// Uniform1i and Uniform1iv are the only two functions that may be used to -// load uniform variables defined as sampler types. Loading samplers with any -// other function will result in a GL.INVALID_OPERATION error. -// -// All active uniform variables defined in a program object are initialized -// to 0 when the program object is linked successfully. They retain the -// values assigned to them by a call to Uniform* until the next successful -// link operation occurs on the program object, when they are once again -// initialized to 0. -func (gl *GL) Uniform4i(location glbase.Uniform, v0, v1, v2, v3 int32) { - C.gles2_glUniform4i(gl.funcs, C.GLint(location), C.GLint(v0), C.GLint(v1), C.GLint(v2), C.GLint(v3)) -} - -// Uniform4iv modifies the value of a uniform variable or a uniform -// variable array. The location of the uniform variable to be modified is -// specified by location, which should be a value returned by GetUniformLocation. -// Uniform4iv operates on the program object that was made part of -// current state by calling UseProgram. -// -// The functions Uniform{1|2|3|4}{f|i|ui}v can be used to modify a single -// uniform variable or a uniform variable array. These functions receive a -// slice with the values to be loaded into a uniform variable or a uniform -// variable array. A slice with length 1 should be used if modifying the value -// of a single uniform variable, and a length of 1 or greater can be used to -// modify an entire array or part of an array. When loading n elements -// starting at an arbitrary position m in a uniform variable array, elements -// m + n - 1 in the array will be replaced with the new values. If m + n - 1 -// is larger than the size of the uniform variable array, values for all -// array elements beyond the end of the array will be ignored. The number -// specified in the name of the command indicates the number of components -// for each element in value, and it should match the number of components in -// the data type of the specified uniform variable (1 for float, int, bool; -// 2 for vec2, ivec2, bvec2, etc.). The data type specified in the name -// of the command must match the data type for the specified uniform variable -// as described for Uniform{1|2|3|4}{f|i|ui}. -// -// Uniform1i and Uniform1iv are the only two functions that may be used to -// load uniform variables defined as sampler types. Loading samplers with any -// other function will result in a GL.INVALID_OPERATION error. -// -// All active uniform variables defined in a program object are initialized -// to 0 when the program object is linked successfully. They retain the -// values assigned to them by a call to Uniform* until the next successful -// link operation occurs on the program object, when they are once again -// initialized to 0. -func (gl *GL) Uniform4iv(location glbase.Uniform, value []int32) { - if len(value) == 0 { - return - } - if len(value)%4 != 0 { - panic("invalid value length for Uniform4iv") - } - count := len(value) / 4 - C.gles2_glUniform4iv(gl.funcs, C.GLint(location), C.GLsizei(count), (*C.GLint)(unsafe.Pointer(&value[0]))) -} - -// UniformMatrix2fv modifies the value of a uniform variable or a uniform -// variable array. The location of the uniform variable to be modified is -// specified by location, which should be a value returned by GetUniformLocation. -// UniformMatrix2fv operates on the program object that was made part of -// current state by calling UseProgram. -// -// The functions UniformMatrix{2|3|4|2x3|3x2|2x4|4x2|3x4|4x3}fv are used to -// modify a matrix or an array of matrices. The numbers in the function name -// are interpreted as the dimensionality of the matrix. The number 2 -// indicates a 2x2 matrix (4 values), the number 3 indicates a 3x3 matrix (9 -// values), and the number 4 indicates a 4x4 matrix (16 values). Non-square -// matrix dimensionality is explicit, with the first number representing the -// number of columns and the second number representing the number of rows. -// For example, 2x4 indicates a 2x4 matrix with 2 columns and 4 rows (8 -// values). The length of the provided slice must be a multiple of the number -// of values per matrix, to update one or more consecutive matrices. -// -// If transpose is false, each matrix is assumed to be supplied in column -// major order. If transpose is true, each matrix is assumed to be supplied -// in row major order. -// -// All active uniform variables defined in a program object are initialized -// to 0 when the program object is linked successfully. They retain the -// values assigned to them by a call to Uniform* until the next successful -// link operation occurs on the program object, when they are once again -// initialized to 0. -func (gl *GL) UniformMatrix2fv(location glbase.Uniform, transpose bool, value []float32) { - if len(value) == 0 { - return - } - if len(value)%(2*2) != 0 { - panic("invalid value length for UniformMatrix2fv") - } - count := len(value) / (2 * 2) - C.gles2_glUniformMatrix2fv(gl.funcs, C.GLint(location), C.GLsizei(count), *(*C.GLboolean)(unsafe.Pointer(&transpose)), (*C.GLfloat)(unsafe.Pointer(&value[0]))) -} - -// UniformMatrix3fv modifies the value of a uniform variable or a uniform -// variable array. The location of the uniform variable to be modified is -// specified by location, which should be a value returned by GetUniformLocation. -// UniformMatrix3fv operates on the program object that was made part of -// current state by calling UseProgram. -// -// The functions UniformMatrix{2|3|4|2x3|3x2|2x4|4x2|3x4|4x3}fv are used to -// modify a matrix or an array of matrices. The numbers in the function name -// are interpreted as the dimensionality of the matrix. The number 2 -// indicates a 2x2 matrix (4 values), the number 3 indicates a 3x3 matrix (9 -// values), and the number 4 indicates a 4x4 matrix (16 values). Non-square -// matrix dimensionality is explicit, with the first number representing the -// number of columns and the second number representing the number of rows. -// For example, 2x4 indicates a 2x4 matrix with 2 columns and 4 rows (8 -// values). The length of the provided slice must be a multiple of the number -// of values per matrix, to update one or more consecutive matrices. -// -// If transpose is false, each matrix is assumed to be supplied in column -// major order. If transpose is true, each matrix is assumed to be supplied -// in row major order. -// -// All active uniform variables defined in a program object are initialized -// to 0 when the program object is linked successfully. They retain the -// values assigned to them by a call to Uniform* until the next successful -// link operation occurs on the program object, when they are once again -// initialized to 0. -func (gl *GL) UniformMatrix3fv(location glbase.Uniform, transpose bool, value []float32) { - if len(value) == 0 { - return - } - if len(value)%(3*3) != 0 { - panic("invalid value length for UniformMatrix3fv") - } - count := len(value) / (3 * 3) - C.gles2_glUniformMatrix3fv(gl.funcs, C.GLint(location), C.GLsizei(count), *(*C.GLboolean)(unsafe.Pointer(&transpose)), (*C.GLfloat)(unsafe.Pointer(&value[0]))) -} - -// UniformMatrix4fv modifies the value of a uniform variable or a uniform -// variable array. The location of the uniform variable to be modified is -// specified by location, which should be a value returned by GetUniformLocation. -// UniformMatrix4fv operates on the program object that was made part of -// current state by calling UseProgram. -// -// The functions UniformMatrix{2|3|4|2x3|3x2|2x4|4x2|3x4|4x3}fv are used to -// modify a matrix or an array of matrices. The numbers in the function name -// are interpreted as the dimensionality of the matrix. The number 2 -// indicates a 2x2 matrix (4 values), the number 3 indicates a 3x3 matrix (9 -// values), and the number 4 indicates a 4x4 matrix (16 values). Non-square -// matrix dimensionality is explicit, with the first number representing the -// number of columns and the second number representing the number of rows. -// For example, 2x4 indicates a 2x4 matrix with 2 columns and 4 rows (8 -// values). The length of the provided slice must be a multiple of the number -// of values per matrix, to update one or more consecutive matrices. -// -// If transpose is false, each matrix is assumed to be supplied in column -// major order. If transpose is true, each matrix is assumed to be supplied -// in row major order. -// -// All active uniform variables defined in a program object are initialized -// to 0 when the program object is linked successfully. They retain the -// values assigned to them by a call to Uniform* until the next successful -// link operation occurs on the program object, when they are once again -// initialized to 0. -func (gl *GL) UniformMatrix4fv(location glbase.Uniform, transpose bool, value []float32) { - if len(value) == 0 { - return - } - if len(value)%(4*4) != 0 { - panic("invalid value length for UniformMatrix4fv") - } - count := len(value) / (4 * 4) - C.gles2_glUniformMatrix4fv(gl.funcs, C.GLint(location), C.GLsizei(count), *(*C.GLboolean)(unsafe.Pointer(&transpose)), (*C.GLfloat)(unsafe.Pointer(&value[0]))) -} - -// UseProgram installs the program object specified by program as part of -// current rendering state. One or more executables are created in a program -// object by successfully attaching shader objects to it with AttachShader, -// successfully compiling the shader objects with CompileShader, and -// successfully linking the program object with LinkProgram. -// -// A program object will contain an executable that will run on the vertex -// processor if it contains one or more shader objects of type -// GL.VERTEX_SHADER that have been successfully compiled and linked. -// Similarly, a program object will contain an executable that will run on -// the fragment processor if it contains one or more shader objects of type -// GL.FRAGMENT_SHADER that have been successfully compiled and linked. -// -// Successfully installing an executable on a programmable processor will -// cause the corresponding fixed functionality of OpenGL to be disabled. -// Specifically, if an executable is installed on the vertex processor, the -// OpenGL fixed functionality will be disabled as follows. -// -// - The modelview matrix is not applied to vertex coordinates. -// -// - The projection matrix is not applied to vertex coordinates. -// -// - The texture matrices are not applied to texture coordinates. -// -// - Normals are not transformed to eye coordinates. -// -// - Normals are not rescaled or normalized. -// -// - Normalization of GL.AUTO_NORMAL evaluated normals is not performed. -// -// - Texture coordinates are not generated automatically. -// -// - Per-vertex lighting is not performed. -// -// - Color material computations are not performed. -// -// - Color index lighting is not performed. -// -// - This list also applies when setting the current raster position. -// -// The executable that is installed on the vertex processor is expected to -// implement any or all of the desired functionality from the preceding list. -// Similarly, if an executable is installed on the fragment processor, the -// OpenGL fixed functionality will be disabled as follows. -// -// - Texture environment and texture functions are not applied. -// -// - Texture application is not applied. -// -// - Color sum is not applied. -// -// - Fog is not applied. -// -// Again, the fragment shader that is installed is expected to implement any -// or all of the desired functionality from the preceding list. -// -// While a program object is in use, applications are free to modify attached -// shader objects, compile attached shader objects, attach additional shader -// objects, and detach or delete shader objects. None of these operations -// will affect the executables that are part of the current state. However, -// relinking the program object that is currently in use will install the -// program object as part of the current rendering state if the link -// operation was successful (see LinkProgram). If the program object -// currently in use is relinked unsuccessfully, its link status will be set -// to GL.FALSE, but the executables and associated state will remain part of -// the current state until a subsequent call to UseProgram removes it from -// use. After it is removed from use, it cannot be made part of current state -// until it has been successfully relinked. -// -// If program contains shader objects of type GL.VERTEX_SHADER but it does -// not contain shader objects of type GL.FRAGMENT_SHADER, an executable will -// be installed on the vertex processor, but fixed functionality will be used -// for fragment processing. Similarly, if program contains shader objects of -// type GL.FRAGMENT_SHADER but it does not contain shader objects of type -// GL.VERTEX_SHADER, an executable will be installed on the fragment -// processor, but fixed functionality will be used for vertex processing. If -// program is 0, the programmable processors will be disabled, and fixed -// functionality will be used for both vertex and fragment processing. -// -// While a program object is in use, the state that controls the disabled -// fixed functionality may also be updated using the normal OpenGL calls. -// -// Like display lists and texture objects, the name space for program objects -// may be shared across a set of contexts, as long as the server sides of the -// contexts share the same address space. If the name space is shared across -// contexts, any attached objects and the data associated with those attached -// objects are shared as well. -// -// Applications are responsible for providing the synchronization across API -// calls when objects are accessed from different execution threads. -// -// Error GL.INVALID_VALUE is generated if program is neither 0 nor a value -// generated by OpenGL. GL.INVALID_OPERATION is generated if program is not -// a program object. GL.INVALID_OPERATION is generated if program could not -// be made part of current state. GL.INVALID_OPERATION is generated if -// UseProgram is executed between the execution of Begin and the -// corresponding execution of End. -// -// UseProgram is available in GL version 2.0 or greater. -func (gl *GL) UseProgram(program glbase.Program) { - C.gles2_glUseProgram(gl.funcs, C.GLuint(program)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glValidateProgram.xml -func (gl *GL) ValidateProgram(program glbase.Program) { - C.gles2_glValidateProgram(gl.funcs, C.GLuint(program)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glVertexAttrib1f.xml -func (gl *GL) VertexAttrib1f(index glbase.Attrib, x float32) { - C.gles2_glVertexAttrib1f(gl.funcs, C.GLuint(index), C.GLfloat(x)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glVertexAttrib1fv.xml -func (gl *GL) VertexAttrib1fv(index glbase.Attrib, values []float32) { - C.gles2_glVertexAttrib1fv(gl.funcs, C.GLuint(index), (*C.GLfloat)(unsafe.Pointer(&values[0]))) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glVertexAttrib2f.xml -func (gl *GL) VertexAttrib2f(index glbase.Attrib, x, y float32) { - C.gles2_glVertexAttrib2f(gl.funcs, C.GLuint(index), C.GLfloat(x), C.GLfloat(y)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glVertexAttrib2fv.xml -func (gl *GL) VertexAttrib2fv(index glbase.Attrib, values []float32) { - if len(values) != 2 { - panic("parameter values has incorrect length") - } - C.gles2_glVertexAttrib2fv(gl.funcs, C.GLuint(index), (*C.GLfloat)(unsafe.Pointer(&values[0]))) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glVertexAttrib3f.xml -func (gl *GL) VertexAttrib3f(index glbase.Attrib, x, y, z float32) { - C.gles2_glVertexAttrib3f(gl.funcs, C.GLuint(index), C.GLfloat(x), C.GLfloat(y), C.GLfloat(z)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glVertexAttrib3fv.xml -func (gl *GL) VertexAttrib3fv(index glbase.Attrib, values []float32) { - if len(values) != 3 { - panic("parameter values has incorrect length") - } - C.gles2_glVertexAttrib3fv(gl.funcs, C.GLuint(index), (*C.GLfloat)(unsafe.Pointer(&values[0]))) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glVertexAttrib4f.xml -func (gl *GL) VertexAttrib4f(index glbase.Attrib, x, y, z, w float32) { - C.gles2_glVertexAttrib4f(gl.funcs, C.GLuint(index), C.GLfloat(x), C.GLfloat(y), C.GLfloat(z), C.GLfloat(w)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glVertexAttrib4fv.xml -func (gl *GL) VertexAttrib4fv(index glbase.Attrib, values []float32) { - if len(values) != 4 { - panic("parameter values has incorrect length") - } - C.gles2_glVertexAttrib4fv(gl.funcs, C.GLuint(index), (*C.GLfloat)(unsafe.Pointer(&values[0]))) -} - -// VertexAttribPointer specifies the location and data format of the array -// of generic vertex attributes at index to use when rendering. size -// specifies the number of components per attribute and must be 1, 2, 3, or -// 4. type specifies the data type of each component, and stride specifies -// the byte stride from one attribute to the next, allowing vertices and -// attributes to be packed into a single array or stored in separate arrays. -// normalized indicates whether the values stored in an integer format are -// to be mapped to the range [-1,1] (for signed values) or [0,1] -// (for unsigned values) when they are accessed and converted to floating -// point; otherwise, values will be converted to floats directly without -// normalization. offset is a byte offset into the buffer object's data -// store, which must be bound to the GL.ARRAY_BUFFER target with BindBuffer. -// -// The buffer object binding (GL.ARRAY_BUFFER_BINDING) is saved as -// generic vertex attribute array client-side state -// (GL.VERTEX_ATTRIB_ARRAY_BUFFER_BINDING) for the provided index. -// -// To enable and disable a generic vertex attribute array, call -// EnableVertexAttribArray and DisableVertexAttribArray with index. If -// enabled, the generic vertex attribute array is used when DrawArrays or -// DrawElements is called. Each generic vertex attribute array is initially -// disabled. -// -// VertexAttribPointer is typically implemented on the client side. -// -// Error GL.INVALID_ENUM is generated if type is not an accepted value. -// GL.INVALID_VALUE is generated if index is greater than or equal to -// GL.MAX_VERTEX_ATTRIBS. GL.INVALID_VALUE is generated if size is not 1, 2, -// 3, or 4. GL.INVALID_VALUE is generated if stride is negative. -func (gl *GL) VertexAttribPointer(index glbase.Attrib, size int, gltype glbase.Enum, normalized bool, stride int, offset uintptr) { - offset_ptr := unsafe.Pointer(offset) - C.gles2_glVertexAttribPointer(gl.funcs, C.GLuint(index), C.GLint(size), C.GLenum(gltype), *(*C.GLboolean)(unsafe.Pointer(&normalized)), C.GLsizei(stride), offset_ptr) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glBindTexture.xml -func (gl *GL) BindTexture(target glbase.Enum, texture glbase.Texture) { - C.gles2_glBindTexture(gl.funcs, C.GLenum(target), C.GLuint(texture)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glBlendFunc.xml -func (gl *GL) BlendFunc(sfactor, dfactor glbase.Enum) { - C.gles2_glBlendFunc(gl.funcs, C.GLenum(sfactor), C.GLenum(dfactor)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glClear.xml -func (gl *GL) Clear(mask glbase.Bitfield) { - C.gles2_glClear(gl.funcs, C.GLbitfield(mask)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glClearColor.xml -func (gl *GL) ClearColor(red, green, blue, alpha glbase.Clampf) { - C.gles2_glClearColor(gl.funcs, C.GLclampf(red), C.GLclampf(green), C.GLclampf(blue), C.GLclampf(alpha)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glClearStencil.xml -func (gl *GL) ClearStencil(s int32) { - C.gles2_glClearStencil(gl.funcs, C.GLint(s)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glColorMask.xml -func (gl *GL) ColorMask(red, green, blue, alpha bool) { - C.gles2_glColorMask(gl.funcs, *(*C.GLboolean)(unsafe.Pointer(&red)), *(*C.GLboolean)(unsafe.Pointer(&green)), *(*C.GLboolean)(unsafe.Pointer(&blue)), *(*C.GLboolean)(unsafe.Pointer(&alpha))) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glCopyTexImage2D.xml -func (gl *GL) CopyTexImage2D(target glbase.Enum, level int, internalFormat glbase.Enum, x, y, width, height, border int) { - C.gles2_glCopyTexImage2D(gl.funcs, C.GLenum(target), C.GLint(level), C.GLenum(internalFormat), C.GLint(x), C.GLint(y), C.GLsizei(width), C.GLsizei(height), C.GLint(border)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glCopyTexSubImage2D.xml -func (gl *GL) CopyTexSubImage2D(target glbase.Enum, level, xoffset, yoffset, x, y, width, height int) { - C.gles2_glCopyTexSubImage2D(gl.funcs, C.GLenum(target), C.GLint(level), C.GLint(xoffset), C.GLint(yoffset), C.GLint(x), C.GLint(y), C.GLsizei(width), C.GLsizei(height)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glCullFace.xml -func (gl *GL) CullFace(mode glbase.Enum) { - C.gles2_glCullFace(gl.funcs, C.GLenum(mode)) -} - -// DeleteTextures deletes the textures objects whose names are stored -// in the textures slice. After a texture is deleted, it has no contents or -// dimensionality, and its name is free for reuse (for example by -// GenTextures). If a texture that is currently bound is deleted, the binding -// reverts to 0 (the default texture). -// -// DeleteTextures silently ignores 0's and names that do not correspond to -// existing textures. -// -// Error GL.INVALID_VALUE is generated if n is negative. -// -// DeleteTextures is available in GL version 2.0 or greater. -func (gl *GL) DeleteTextures(textures []glbase.Texture) { - n := len(textures) - if n == 0 { - return - } - C.gles2_glDeleteTextures(gl.funcs, C.GLsizei(n), (*C.GLuint)(unsafe.Pointer(&textures[0]))) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glDepthFunc.xml -func (gl *GL) DepthFunc(glfunc glbase.Enum) { - C.gles2_glDepthFunc(gl.funcs, C.GLenum(glfunc)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glDepthMask.xml -func (gl *GL) DepthMask(flag bool) { - C.gles2_glDepthMask(gl.funcs, *(*C.GLboolean)(unsafe.Pointer(&flag))) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glDisable.xml -func (gl *GL) Disable(cap glbase.Enum) { - C.gles2_glDisable(gl.funcs, C.GLenum(cap)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glDrawArrays.xml -func (gl *GL) DrawArrays(mode glbase.Enum, first, count int) { - C.gles2_glDrawArrays(gl.funcs, C.GLenum(mode), C.GLint(first), C.GLsizei(count)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glDrawElements.xml -func (gl *GL) DrawElements(mode glbase.Enum, count int, gltype glbase.Enum, indices interface{}) { - var indices_ptr unsafe.Pointer - var indices_v = reflect.ValueOf(indices) - if indices != nil && indices_v.Kind() != reflect.Slice { - panic("parameter indices must be a slice") - } - if indices != nil { - indices_ptr = unsafe.Pointer(indices_v.Index(0).Addr().Pointer()) - } - C.gles2_glDrawElements(gl.funcs, C.GLenum(mode), C.GLsizei(count), C.GLenum(gltype), indices_ptr) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glEnable.xml -func (gl *GL) Enable(cap glbase.Enum) { - C.gles2_glEnable(gl.funcs, C.GLenum(cap)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glFinish.xml -func (gl *GL) Finish() { - C.gles2_glFinish(gl.funcs) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glFlush.xml -func (gl *GL) Flush() { - C.gles2_glFlush(gl.funcs) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glFrontFace.xml -func (gl *GL) FrontFace(mode glbase.Enum) { - C.gles2_glFrontFace(gl.funcs, C.GLenum(mode)) -} - -// GenTextures returns n texture names in textures. There is no guarantee -// that the names form a contiguous set of integers; however, it is -// guaranteed that none of the returned names was in use immediately before -// the call to GenTextures. -// -// The generated textures have no dimensionality; they assume the -// dimensionality of the texture target to which they are first bound (see -// BindTexture). -// -// Texture names returned by a call to GenTextures are not returned by -// subsequent calls, unless they are first deleted with DeleteTextures. -// -// Error GL.INVALID_VALUE is generated if n is negative. -// -// GenTextures is available in GL version 2.0 or greater. -func (gl *GL) GenTextures(n int) []glbase.Texture { - if n == 0 { - return nil - } - textures := make([]glbase.Texture, n) - C.gles2_glGenTextures(gl.funcs, C.GLsizei(n), (*C.GLuint)(unsafe.Pointer(&textures[0]))) - return textures -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glGetBooleanv.xml -func (gl *GL) GetBooleanv(pname glbase.Enum, params []bool) { - C.gles2_glGetBooleanv(gl.funcs, C.GLenum(pname), (*C.GLboolean)(unsafe.Pointer(¶ms[0]))) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glGetError.xml -func (gl *GL) GetError() glbase.Enum { - glresult := C.gles2_glGetError(gl.funcs) - return glbase.Enum(glresult) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glGetFloatv.xml -func (gl *GL) GetFloatv(pname glbase.Enum, params []float32) { - C.gles2_glGetFloatv(gl.funcs, C.GLenum(pname), (*C.GLfloat)(unsafe.Pointer(¶ms[0]))) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glGetIntegerv.xml -func (gl *GL) GetIntegerv(pname glbase.Enum, params []int32) { - C.gles2_glGetIntegerv(gl.funcs, C.GLenum(pname), (*C.GLint)(unsafe.Pointer(¶ms[0]))) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glGetTexParameterfv.xml -func (gl *GL) GetTexParameterfv(target, pname glbase.Enum, params []float32) { - C.gles2_glGetTexParameterfv(gl.funcs, C.GLenum(target), C.GLenum(pname), (*C.GLfloat)(unsafe.Pointer(¶ms[0]))) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glGetTexParameteriv.xml -func (gl *GL) GetTexParameteriv(target, pname glbase.Enum, params []int32) { - C.gles2_glGetTexParameteriv(gl.funcs, C.GLenum(target), C.GLenum(pname), (*C.GLint)(unsafe.Pointer(¶ms[0]))) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glHint.xml -func (gl *GL) Hint(target, mode glbase.Enum) { - C.gles2_glHint(gl.funcs, C.GLenum(target), C.GLenum(mode)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glIsEnabled.xml -func (gl *GL) IsEnabled(cap glbase.Enum) bool { - glresult := C.gles2_glIsEnabled(gl.funcs, C.GLenum(cap)) - return *(*bool)(unsafe.Pointer(&glresult)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glIsTexture.xml -func (gl *GL) IsTexture(texture glbase.Texture) bool { - glresult := C.gles2_glIsTexture(gl.funcs, C.GLuint(texture)) - return *(*bool)(unsafe.Pointer(&glresult)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glLineWidth.xml -func (gl *GL) LineWidth(width float32) { - C.gles2_glLineWidth(gl.funcs, C.GLfloat(width)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glPixelStorei.xml -func (gl *GL) PixelStorei(pname glbase.Enum, param int32) { - C.gles2_glPixelStorei(gl.funcs, C.GLenum(pname), C.GLint(param)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glPolygonOffset.xml -func (gl *GL) PolygonOffset(factor, units float32) { - C.gles2_glPolygonOffset(gl.funcs, C.GLfloat(factor), C.GLfloat(units)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glReadPixels.xml -func (gl *GL) ReadPixels(x, y, width, height int, format, gltype glbase.Enum, pixels interface{}) { - var pixels_ptr unsafe.Pointer - var pixels_v = reflect.ValueOf(pixels) - if pixels != nil && pixels_v.Kind() != reflect.Slice { - panic("parameter pixels must be a slice") - } - if pixels != nil { - pixels_ptr = unsafe.Pointer(pixels_v.Index(0).Addr().Pointer()) - } - C.gles2_glReadPixels(gl.funcs, C.GLint(x), C.GLint(y), C.GLsizei(width), C.GLsizei(height), C.GLenum(format), C.GLenum(gltype), pixels_ptr) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glScissor.xml -func (gl *GL) Scissor(x, y, width, height int) { - C.gles2_glScissor(gl.funcs, C.GLint(x), C.GLint(y), C.GLsizei(width), C.GLsizei(height)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glStencilFunc.xml -func (gl *GL) StencilFunc(glfunc glbase.Enum, ref int32, mask uint32) { - C.gles2_glStencilFunc(gl.funcs, C.GLenum(glfunc), C.GLint(ref), C.GLuint(mask)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glStencilMask.xml -func (gl *GL) StencilMask(mask uint32) { - C.gles2_glStencilMask(gl.funcs, C.GLuint(mask)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glStencilOp.xml -func (gl *GL) StencilOp(fail, zfail, zpass glbase.Enum) { - C.gles2_glStencilOp(gl.funcs, C.GLenum(fail), C.GLenum(zfail), C.GLenum(zpass)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glTexImage2D.xml -func (gl *GL) TexImage2D(target glbase.Enum, level int, internalFormat int32, width, height, border int, format, gltype glbase.Enum, pixels interface{}) { - var pixels_ptr unsafe.Pointer - var pixels_v = reflect.ValueOf(pixels) - if pixels != nil && pixels_v.Kind() != reflect.Slice { - panic("parameter pixels must be a slice") - } - if pixels != nil { - pixels_ptr = unsafe.Pointer(pixels_v.Index(0).Addr().Pointer()) - } - C.gles2_glTexImage2D(gl.funcs, C.GLenum(target), C.GLint(level), C.GLint(internalFormat), C.GLsizei(width), C.GLsizei(height), C.GLint(border), C.GLenum(format), C.GLenum(gltype), pixels_ptr) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glTexParameterf.xml -func (gl *GL) TexParameterf(target, pname glbase.Enum, param float32) { - C.gles2_glTexParameterf(gl.funcs, C.GLenum(target), C.GLenum(pname), C.GLfloat(param)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glTexParameterfv.xml -func (gl *GL) TexParameterfv(target, pname glbase.Enum, params []float32) { - C.gles2_glTexParameterfv(gl.funcs, C.GLenum(target), C.GLenum(pname), (*C.GLfloat)(unsafe.Pointer(¶ms[0]))) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glTexParameteri.xml -func (gl *GL) TexParameteri(target, pname glbase.Enum, param int32) { - C.gles2_glTexParameteri(gl.funcs, C.GLenum(target), C.GLenum(pname), C.GLint(param)) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glTexParameteriv.xml -func (gl *GL) TexParameteriv(target, pname glbase.Enum, params []int32) { - C.gles2_glTexParameteriv(gl.funcs, C.GLenum(target), C.GLenum(pname), (*C.GLint)(unsafe.Pointer(¶ms[0]))) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glTexSubImage2D.xml -func (gl *GL) TexSubImage2D(target glbase.Enum, level, xoffset, yoffset, width, height int, format, gltype glbase.Enum, pixels interface{}) { - var pixels_ptr unsafe.Pointer - var pixels_v = reflect.ValueOf(pixels) - if pixels != nil && pixels_v.Kind() != reflect.Slice { - panic("parameter pixels must be a slice") - } - if pixels != nil { - pixels_ptr = unsafe.Pointer(pixels_v.Index(0).Addr().Pointer()) - } - C.gles2_glTexSubImage2D(gl.funcs, C.GLenum(target), C.GLint(level), C.GLint(xoffset), C.GLint(yoffset), C.GLsizei(width), C.GLsizei(height), C.GLenum(format), C.GLenum(gltype), pixels_ptr) -} - -// https://www.opengl.org/sdk/docs/man2/xhtml/glViewport.xml -func (gl *GL) Viewport(x, y, width, height int) { - C.gles2_glViewport(gl.funcs, C.GLint(x), C.GLint(y), C.GLsizei(width), C.GLsizei(height)) -} |