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gpu: return and handle errors from Backend.New... methods

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"handling" means panicing, but at least the panicing is moved up
a layer, leaving future changes to do it properly in GPU.

Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit is contained in:
Elias Naur
2020-02-22 07:31:55 +01:00
parent 9c984e03b8
commit 10484d26f3
4 changed files with 64 additions and 20 deletions
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gpu/path.go
+12 -5
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@@ -150,7 +150,10 @@ func newStenciler(ctx Backend) *stenciler {
indices[i*6+4] = i*4 + 1
indices[i*6+5] = i*4 + 3
}
indexBuf := ctx.NewImmutableBuffer(BufferBindingIndices, gunsafe.BytesView(indices))
indexBuf, err := ctx.NewImmutableBuffer(BufferBindingIndices, gunsafe.BytesView(indices))
if err != nil {
panic(err)
}
progLayout, err := ctx.NewInputLayout(shader_stencil_vert, []InputDesc{
{Type: DataTypeShort, Size: 2, Offset: int(unsafe.Offsetof((*(*path.Vertex)(nil)).CornerX))},
{Type: DataTypeFloat, Size: 1, Offset: int(unsafe.Offsetof((*(*path.Vertex)(nil)).MaxY))},
@@ -208,13 +211,14 @@ func (s *fboSet) resize(ctx Backend, sizes []image.Point) {
f.fbo.Release()
f.tex.Release()
}
f.size = sz
f.tex = ctx.NewTexture(TextureFormatFloat, sz.X, sz.Y, FilterNearest, FilterNearest,
tex, err := ctx.NewTexture(TextureFormatFloat, sz.X, sz.Y, FilterNearest, FilterNearest,
BufferBindingTexture|BufferBindingFramebuffer)
fbo, err := ctx.NewFramebuffer(f.tex)
fbo, err := ctx.NewFramebuffer(tex)
if err != nil {
panic(err)
}
f.size = sz
f.tex = tex
f.fbo = fbo
}
}
@@ -259,7 +263,10 @@ func (c *coverer) release() {
}
func buildPath(ctx Backend, p []byte) *pathData {
buf := ctx.NewImmutableBuffer(BufferBindingVertices, p)
buf, err := ctx.NewImmutableBuffer(BufferBindingVertices, p)
if err != nil {
panic(err)
}
return &pathData{
ncurves: len(p) / path.VertStride,
data: buf,