1 files changed, 83 insertions, 0 deletions
diff --git a/Godeps/_workspace/src/github.com/Gustav-Simonsson/go-opencl/cl/image.go b/Godeps/_workspace/src/github.com/Gustav-Simonsson/go-opencl/cl/image.go
new file mode 100644
index 000000000..d6a996377
--- /dev/null
+++ b/Godeps/_workspace/src/github.com/Gustav-Simonsson/go-opencl/cl/image.go
@@ -0,0 +1,83 @@
+// +build cl12
+
+package cl
+
+// #ifdef __APPLE__
+// #include "OpenCL/opencl.h"
+// #else
+// #include "cl.h"
+// #endif
+import "C"
+import (
+	"image"
+	"unsafe"
+)
+
+func (ctx *Context) CreateImage(flags MemFlag, imageFormat ImageFormat, imageDesc ImageDescription, data []byte) (*MemObject, error) {
+	format := imageFormat.toCl()
+	desc := imageDesc.toCl()
+	var dataPtr unsafe.Pointer
+	if data != nil {
+		dataPtr = unsafe.Pointer(&data[0])
+	}
+	var err C.cl_int
+	clBuffer := C.clCreateImage(ctx.clContext, C.cl_mem_flags(flags), &format, &desc, dataPtr, &err)
+	if err != C.CL_SUCCESS {
+		return nil, toError(err)
+	}
+	if clBuffer == nil {
+		return nil, ErrUnknown
+	}
+	return newMemObject(clBuffer, len(data)), nil
+}
+
+func (ctx *Context) CreateImageSimple(flags MemFlag, width, height int, channelOrder ChannelOrder, channelDataType ChannelDataType, data []byte) (*MemObject, error) {
+	format := ImageFormat{channelOrder, channelDataType}
+	desc := ImageDescription{
+		Type:   MemObjectTypeImage2D,
+		Width:  width,
+		Height: height,
+	}
+	return ctx.CreateImage(flags, format, desc, data)
+}
+
+func (ctx *Context) CreateImageFromImage(flags MemFlag, img image.Image) (*MemObject, error) {
+	switch m := img.(type) {
+	case *image.Gray:
+		format := ImageFormat{ChannelOrderIntensity, ChannelDataTypeUNormInt8}
+		desc := ImageDescription{
+			Type:     MemObjectTypeImage2D,
+			Width:    m.Bounds().Dx(),
+			Height:   m.Bounds().Dy(),
+			RowPitch: m.Stride,
+		}
+		return ctx.CreateImage(flags, format, desc, m.Pix)
+	case *image.RGBA:
+		format := ImageFormat{ChannelOrderRGBA, ChannelDataTypeUNormInt8}
+		desc := ImageDescription{
+			Type:     MemObjectTypeImage2D,
+			Width:    m.Bounds().Dx(),
+			Height:   m.Bounds().Dy(),
+			RowPitch: m.Stride,
+		}
+		return ctx.CreateImage(flags, format, desc, m.Pix)
+	}
+
+	b := img.Bounds()
+	w := b.Dx()
+	h := b.Dy()
+	data := make([]byte, w*h*4)
+	dataOffset := 0
+	for y := 0; y < h; y++ {
+		for x := 0; x < w; x++ {
+			c := img.At(x+b.Min.X, y+b.Min.Y)
+			r, g, b, a := c.RGBA()
+			data[dataOffset] = uint8(r >> 8)
+			data[dataOffset+1] = uint8(g >> 8)
+			data[dataOffset+2] = uint8(b >> 8)
+			data[dataOffset+3] = uint8(a >> 8)
+			dataOffset += 4
+		}
+	}
+	return ctx.CreateImageSimple(flags, w, h, ChannelOrderRGBA, ChannelDataTypeUNormInt8, data)
+}