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gpu: fix opacity layer rendering on OpenGL

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Fixes: https://todo.sr.ht/~eliasnaur/gio/536
Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit is contained in:
Elias Naur
2023-10-01 21:00:59 +00:00
parent 27193ae8e8
commit 526db27c75
4 changed files with 23 additions and 14 deletions
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gpu/path.go
+8 -4
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@@ -58,7 +58,7 @@ type coverUniforms struct {
uvCoverTransform [4]float32
uvTransformR1 [4]float32
uvTransformR2 [4]float32
_ float32
fbo float32
}
type stenciler struct {
@@ -375,11 +375,11 @@ func (s *stenciler) stencilPath(bounds image.Rectangle, offset f32.Point, uv ima
}
}
func (p *pather) cover(mat materialType, col f32color.RGBA, col1, col2 f32color.RGBA, scale, off f32.Point, uvTrans f32.Affine2D, coverScale, coverOff f32.Point) {
p.coverer.cover(mat, col, col1, col2, scale, off, uvTrans, coverScale, coverOff)
func (p *pather) cover(mat materialType, isFBO bool, col f32color.RGBA, col1, col2 f32color.RGBA, scale, off f32.Point, uvTrans f32.Affine2D, coverScale, coverOff f32.Point) {
p.coverer.cover(mat, isFBO, col, col1, col2, scale, off, uvTrans, coverScale, coverOff)
}
func (c *coverer) cover(mat materialType, col f32color.RGBA, col1, col2 f32color.RGBA, scale, off f32.Point, uvTrans f32.Affine2D, coverScale, coverOff f32.Point) {
func (c *coverer) cover(mat materialType, isFBO bool, col f32color.RGBA, col1, col2 f32color.RGBA, scale, off f32.Point, uvTrans f32.Affine2D, coverScale, coverOff f32.Point) {
var uniforms *coverUniforms
switch mat {
case materialColor:
@@ -399,6 +399,10 @@ func (c *coverer) cover(mat materialType, col f32color.RGBA, col1, col2 f32color
c.texUniforms.uvTransformR2 = [4]float32{t4, t5, t6, 0}
uniforms = &c.texUniforms.coverUniforms
}
uniforms.fbo = 0
if isFBO {
uniforms.fbo = 1
}
uniforms.transform = [4]float32{scale.X, scale.Y, off.X, off.Y}
uniforms.uvCoverTransform = [4]float32{coverScale.X, coverScale.Y, coverOff.X, coverOff.Y}
c.pipelines[mat].UploadUniforms(c.ctx)