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gpu,gpu/internal,internal/gl: replace BlitFramebuffer with CopyTexture

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OpenGL ES 2.0 doesn't support glBlitFramebuffer, but does support
glCopyTexSubImage2D. Fortunately, we don't need the extra features of
glBlitFramebuffer anyway.

Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit is contained in:
Elias Naur
2021-08-21 11:11:38 +02:00
parent 44adf01768
commit c9970cb8e3
8 changed files with 32 additions and 20 deletions
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internal/gl/gl_js.go
+3 -3
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@@ -104,9 +104,6 @@ func (f *Functions) BlendEquation(mode Enum) {
func (f *Functions) BlendFuncSeparate(srcRGB, dstRGB, srcA, dstA Enum) {
f.Ctx.Call("blendFunc", int(srcRGB), int(dstRGB), int(srcA), int(dstA))
}
func (f *Functions) BlitFramebuffer(sx0, sy0, sx1, sy1, dx0, dy0, dx1, dy1 int, mask Enum, filter Enum) {
panic("not implemented")
}
func (f *Functions) BufferData(target Enum, size int, usage Enum) {
f.Ctx.Call("bufferData", int(target), size, int(usage))
}
@@ -128,6 +125,9 @@ func (f *Functions) ClearDepthf(d float32) {
func (f *Functions) CompileShader(s Shader) {
f.Ctx.Call("compileShader", js.Value(s))
}
func (f *Functions) CopyTexSubImage2D(target Enum, level, xoffset, yoffset, x, y, width, height int) {
f.Ctx.Call("copyTexSubImage2D", int(target), level, xoffset, yoffset, x, y, width, height)
}
func (f *Functions) CreateBuffer() Buffer {
return Buffer(f.Ctx.Call("createBuffer"))
}