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graphicsdriver/opengl: Refactoring

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This commit is contained in:
Hajime Hoshi 2018-11-17 22:40:21 +09:00
parent ef08e218c8
commit d8f337985d
1 changed files with 12 additions and 19 deletions
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31
internal/graphicsdriver/opengl/program.go
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@ -124,7 +124,8 @@ type openGLState struct {
programScreen program
lastProgram program
lastViewportSize []float32
lastViewportWidth int
lastViewportHeight int
lastColorMatrix []float32
lastColorMatrixTranslation []float32
lastSourceWidth int
@ -151,7 +152,8 @@ func (s *openGLState) reset(context *context) error {
}
s.lastProgram = zeroProgram
s.lastViewportSize = nil
s.lastViewportWidth = 0
s.lastViewportHeight = 0
s.lastColorMatrix = nil
s.lastColorMatrixTranslation = nil
s.lastSourceWidth = 0
@ -266,10 +268,6 @@ func (d *Driver) useProgram(mode graphics.CompositeMode, colorM *affine.ColorM,
if err := destination.setViewport(); err != nil {
return err
}
viewportSize := []float32{
float32(destination.framebuffer.width),
float32(destination.framebuffer.height),
}
dstW := destination.width
srcW, srcH := source.width, source.height
@ -301,36 +299,31 @@ func (d *Driver) useProgram(mode graphics.CompositeMode, colorM *affine.ColorM,
}
d.state.lastProgram = program
d.state.lastViewportSize = nil
d.state.lastViewportWidth = 0
d.state.lastViewportHeight = 0
d.state.lastColorMatrix = nil
d.state.lastColorMatrixTranslation = nil
d.state.lastSourceWidth = 0
d.state.lastSourceHeight = 0
}
if !areSameFloat32Array(d.state.lastViewportSize, viewportSize) {
d.context.uniformFloats(program, "viewport_size", viewportSize)
if d.state.lastViewportSize == nil {
d.state.lastViewportSize = make([]float32, 2)
}
d.state.lastViewportSize = viewportSize
vw := destination.framebuffer.width
vh := destination.framebuffer.height
if d.state.lastViewportWidth != vw || d.state.lastSourceHeight != vh {
d.context.uniformFloats(program, "viewport_size", []float32{float32(vw), float32(vh)})
d.state.lastViewportWidth = vw
d.state.lastViewportHeight = vh
}
esBody, esTranslate := colorM.UnsafeElements()
if !areSameFloat32Array(d.state.lastColorMatrix, esBody) {
d.context.uniformFloats(program, "color_matrix_body", esBody)
if d.state.lastColorMatrix == nil {
d.state.lastColorMatrix = make([]float32, 16)
}
// ColorM's elements are immutable. It's OK to hold the reference without copying.
d.state.lastColorMatrix = esBody
}
if !areSameFloat32Array(d.state.lastColorMatrixTranslation, esTranslate) {
d.context.uniformFloats(program, "color_matrix_translation", esTranslate)
if d.state.lastColorMatrixTranslation == nil {
d.state.lastColorMatrixTranslation = make([]float32, 4)
}
// ColorM's elements are immutable. It's OK to hold the reference without copying.
d.state.lastColorMatrixTranslation = esTranslate
}