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graphicsdriver/opengl: Integrate last uniform values

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This commit is contained in:
Hajime Hoshi 2020-05-17 18:36:33 +09:00
parent d12b406e0a
commit 9cc128fb40
1 changed files with 16 additions and 31 deletions
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45
internal/graphicsdriver/opengl/program.go
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@ -134,12 +134,7 @@ type openGLState struct {
programs map[programKey]program
lastProgram program
lastViewportWidth int
lastViewportHeight int
lastColorMatrix []float32
lastColorMatrixTranslation []float32
lastSourceWidth int
lastSourceHeight int
lastUniforms map[string][]float32
source *Image
destination *Image
@ -157,12 +152,7 @@ func (s *openGLState) reset(context *context) error {
}
s.lastProgram = zeroProgram
s.lastViewportWidth = 0
s.lastViewportHeight = 0
s.lastColorMatrix = nil
s.lastColorMatrixTranslation = nil
s.lastSourceWidth = 0
s.lastSourceHeight = 0
s.lastUniforms = map[string][]float32{}
// When context lost happens, deleting programs or buffers is not necessary.
// However, it is not assumed that reset is called only when context lost happens.
@ -284,43 +274,38 @@ func (g *Graphics) useProgram(mode driver.CompositeMode, colorM *affine.ColorM,
}
g.state.lastProgram = program
g.state.lastViewportWidth = 0
g.state.lastViewportHeight = 0
g.state.lastColorMatrix = nil
g.state.lastColorMatrixTranslation = nil
g.state.lastSourceWidth = 0
g.state.lastSourceHeight = 0
g.state.lastUniforms = map[string][]float32{}
}
vw := destination.framebuffer.width
vh := destination.framebuffer.height
if g.state.lastViewportWidth != vw || g.state.lastViewportHeight != vh {
g.context.uniformFloats(program, "viewport_size", []float32{float32(vw), float32(vh)})
g.state.lastViewportWidth = vw
g.state.lastViewportHeight = vh
vs := []float32{float32(vw), float32(vh)}
if !areSameFloat32Array(g.state.lastUniforms["viewport_size"], vs) {
g.context.uniformFloats(program, "viewport_size", vs)
g.state.lastUniforms["viewport_size"] = vs
}
if colorM != nil {
esBody, esTranslate := colorM.UnsafeElements()
if !areSameFloat32Array(g.state.lastColorMatrix, esBody) {
if !areSameFloat32Array(g.state.lastUniforms["color_matrix_body"], esBody) {
g.context.uniformFloats(program, "color_matrix_body", esBody)
// ColorM's elements are immutable. It's OK to hold the reference without copying.
g.state.lastColorMatrix = esBody
g.state.lastUniforms["color_matrix_body"] = esBody
}
if !areSameFloat32Array(g.state.lastColorMatrixTranslation, esTranslate) {
if !areSameFloat32Array(g.state.lastUniforms["color_matrix_translation"], esTranslate) {
g.context.uniformFloats(program, "color_matrix_translation", esTranslate)
// ColorM's elements are immutable. It's OK to hold the reference without copying.
g.state.lastColorMatrixTranslation = esTranslate
g.state.lastUniforms["color_matrix_translation"] = esTranslate
}
}
if filter != driver.FilterNearest {
sw := graphics.InternalImageSize(srcW)
sh := graphics.InternalImageSize(srcH)
if g.state.lastSourceWidth != sw || g.state.lastSourceHeight != sh {
g.context.uniformFloats(program, "source_size", []float32{float32(sw), float32(sh)})
g.state.lastSourceWidth = sw
g.state.lastSourceHeight = sh
s := []float32{float32(sw), float32(sh)}
if !areSameFloat32Array(g.state.lastUniforms["source_size"], s) {
g.context.uniformFloats(program, "source_size", s)
g.state.lastUniforms["source_size"] = s
}
}