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Improve GL error messages

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This commit is contained in:
Hajime Hoshi 2015-06-22 23:14:40 +09:00
parent e3608d08eb
commit 0bc321d3ef
1 changed files with 4 additions and 5 deletions
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9
internal/graphics/internal/opengl/context.go
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@ -102,7 +102,7 @@ func (c *Context) FramebufferPixels(f Framebuffer, width, height int) ([]uint8,
pixels := make([]uint8, 4*width*height)
gl.ReadPixels(0, 0, int32(width), int32(height), gl.RGBA, gl.UNSIGNED_BYTE, gl.Ptr(pixels))
if e := gl.GetError(); e != gl.NO_ERROR {
return nil, errors.New(fmt.Sprintf("gl error: %d", e))
return nil, errors.New(fmt.Sprintf("glReadPixels: %d", e))
}
return pixels, nil
}
@ -136,10 +136,9 @@ func (c *Context) NewFramebuffer(texture Texture) (Framebuffer, error) {
func (c *Context) SetViewport(f Framebuffer, width, height int) error {
gl.Flush()
gl.BindFramebuffer(gl.FRAMEBUFFER, uint32(f))
err := gl.CheckFramebufferStatus(gl.FRAMEBUFFER)
if err != gl.FRAMEBUFFER_COMPLETE {
if gl.GetError() != 0 {
return errors.New(fmt.Sprintf("glBindFramebuffer failed: %d", gl.GetError()))
if err := gl.CheckFramebufferStatus(gl.FRAMEBUFFER); err != gl.FRAMEBUFFER_COMPLETE {
if e := gl.GetError(); e != 0 {
return errors.New(fmt.Sprintf("glBindFramebuffer failed: %d", e))
}
return errors.New("glBindFramebuffer failed: the context is different?")
}