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internal/graphicsdriver/opengl: Optimization: Avoid interface conversion

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This commit is contained in:
Hajime Hoshi 2021-10-29 21:35:40 +09:00
parent 71b2b439f4
commit 3c1f8da7f8
2 changed files with 41 additions and 36 deletions
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31
internal/graphicsdriver/opengl/graphics.go
View File

@ -173,11 +173,11 @@ func (g *Graphics) DrawTriangles(dstID driver.ImageID, srcIDs [graphics.ShaderIm
dw, dh := destination.framebufferSize()
uniformVars = append(uniformVars, uniformVariable{
name: "viewport_size",
value: []float32{float32(dw), float32(dh)},
valueSlice: []float32{float32(dw), float32(dh)},
typ: shaderir.Type{Main: shaderir.Vec2},
}, uniformVariable{
name: "source_region",
value: []float32{
valueSlice: []float32{
srcRegion.X,
srcRegion.Y,
srcRegion.X + srcRegion.Width,
@ -193,11 +193,11 @@ func (g *Graphics) DrawTriangles(dstID driver.ImageID, srcIDs [graphics.ShaderIm
colorM.Elements(&esBody, &esTranslate)
uniformVars = append(uniformVars, uniformVariable{
name: "color_matrix_body",
value: esBody[:],
valueSlice: esBody[:],
typ: shaderir.Type{Main: shaderir.Mat4},
}, uniformVariable{
name: "color_matrix_translation",
value: esTranslate[:],
valueSlice: esTranslate[:],
typ: shaderir.Type{Main: shaderir.Vec4},
})
}
@ -206,7 +206,7 @@ func (g *Graphics) DrawTriangles(dstID driver.ImageID, srcIDs [graphics.ShaderIm
sw, sh := g.images[srcIDs[0]].framebufferSize()
uniformVars = append(uniformVars, uniformVariable{
name: "source_size",
value: []float32{float32(sw), float32(sh)},
valueSlice: []float32{float32(sw), float32(sh)},
typ: shaderir.Type{Main: shaderir.Vec2},
})
}
@ -228,7 +228,7 @@ func (g *Graphics) DrawTriangles(dstID driver.ImageID, srcIDs [graphics.ShaderIm
const idx = graphics.DestinationTextureSizeUniformVariableIndex
w, h := destination.framebufferSize()
uniformVars[idx].name = fmt.Sprintf("U%d", idx)
uniformVars[idx].value = []float32{float32(w), float32(h)}
uniformVars[idx].valueSlice = []float32{float32(w), float32(h)}
uniformVars[idx].typ = shader.ir.Uniforms[idx]
}
{
@ -243,7 +243,7 @@ func (g *Graphics) DrawTriangles(dstID driver.ImageID, srcIDs [graphics.ShaderIm
}
const idx = graphics.TextureSizesUniformVariableIndex
uniformVars[idx].name = fmt.Sprintf("U%d", idx)
uniformVars[idx].value = sizes
uniformVars[idx].valueSlice = sizes
uniformVars[idx].typ = shader.ir.Uniforms[idx]
}
dw, dh := destination.framebufferSize()
@ -251,14 +251,14 @@ func (g *Graphics) DrawTriangles(dstID driver.ImageID, srcIDs [graphics.ShaderIm
origin := []float32{float32(dstRegion.X) / float32(dw), float32(dstRegion.Y) / float32(dh)}
const idx = graphics.TextureDestinationRegionOriginUniformVariableIndex
uniformVars[idx].name = fmt.Sprintf("U%d", idx)
uniformVars[idx].value = origin
uniformVars[idx].valueSlice = origin
uniformVars[idx].typ = shader.ir.Uniforms[idx]
}
{
size := []float32{float32(dstRegion.Width) / float32(dw), float32(dstRegion.Height) / float32(dh)}
const idx = graphics.TextureDestinationRegionSizeUniformVariableIndex
uniformVars[idx].name = fmt.Sprintf("U%d", idx)
uniformVars[idx].value = size
uniformVars[idx].valueSlice = size
uniformVars[idx].typ = shader.ir.Uniforms[idx]
}
{
@ -269,28 +269,35 @@ func (g *Graphics) DrawTriangles(dstID driver.ImageID, srcIDs [graphics.ShaderIm
}
const idx = graphics.TextureSourceOffsetsUniformVariableIndex
uniformVars[idx].name = fmt.Sprintf("U%d", idx)
uniformVars[idx].value = voffsets
uniformVars[idx].valueSlice = voffsets
uniformVars[idx].typ = shader.ir.Uniforms[idx]
}
{
origin := []float32{float32(srcRegion.X), float32(srcRegion.Y)}
const idx = graphics.TextureSourceRegionOriginUniformVariableIndex
uniformVars[idx].name = fmt.Sprintf("U%d", idx)
uniformVars[idx].value = origin
uniformVars[idx].valueSlice = origin
uniformVars[idx].typ = shader.ir.Uniforms[idx]
}
{
size := []float32{float32(srcRegion.Width), float32(srcRegion.Height)}
const idx = graphics.TextureSourceRegionSizeUniformVariableIndex
uniformVars[idx].name = fmt.Sprintf("U%d", idx)
uniformVars[idx].value = size
uniformVars[idx].valueSlice = size
uniformVars[idx].typ = shader.ir.Uniforms[idx]
}
for i, v := range uniforms {
const offset = graphics.PreservedUniformVariablesNum
uniformVars[i+offset].name = fmt.Sprintf("U%d", i+offset)
switch v := v.(type) {
case float32:
uniformVars[i+offset].value = v
case []float32:
uniformVars[i+offset].valueSlice = v
default:
return fmt.Errorf("opengl: unexpected uniform value: %v (type: %T)", v, v)
}
uniformVars[i+offset].typ = shader.ir.Uniforms[i+offset]
}
}

24
internal/graphicsdriver/opengl/program.go
View File

@ -240,7 +240,8 @@ func areSameFloat32Array(a, b []float32) bool {
type uniformVariable struct {
name string
value interface{}
value float32
valueSlice []float32
typ shaderir.Type
}
@ -268,32 +269,29 @@ func (g *Graphics) useProgram(program program, uniforms []uniformVariable, textu
}
for _, u := range uniforms {
switch v := u.value.(type) {
case float32:
if len(u.valueSlice) == 0 {
if got, expected := (&shaderir.Type{Main: shaderir.Float}), &u.typ; !got.Equal(expected) {
return fmt.Errorf("opengl: uniform variable %s type doesn't match: expected %s but %s", u.name, expected.String(), got.String())
}
cached, ok := g.state.lastUniforms[u.name].(float32)
if ok && cached == v {
if ok && cached == u.value {
continue
}
// TODO: Remember whether the location is available or not.
g.context.uniformFloat(program, u.name, v)
g.state.lastUniforms[u.name] = v
case []float32:
if got, expected := len(v), u.typ.FloatNum(); got != expected {
g.context.uniformFloat(program, u.name, u.value)
g.state.lastUniforms[u.name] = u.value
} else {
if got, expected := len(u.valueSlice), u.typ.FloatNum(); got != expected {
return fmt.Errorf("opengl: length of a uniform variables %s (%s) doesn't match: expected %d but %d", u.name, u.typ.String(), expected, got)
}
cached, ok := g.state.lastUniforms[u.name].([]float32)
if ok && areSameFloat32Array(cached, v) {
if ok && areSameFloat32Array(cached, u.valueSlice) {
continue
}
g.context.uniformFloats(program, u.name, v, u.typ)
g.state.lastUniforms[u.name] = v
default:
return fmt.Errorf("opengl: unexpected uniform value: %v (type: %T)", u.value, u.value)
g.context.uniformFloats(program, u.name, u.valueSlice, u.typ)
g.state.lastUniforms[u.name] = u.valueSlice
}
}