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gpu/internal/opengl: avoid UNPACK_ROW_LENGTH/PACK_ROW_LENGTH on GLES2

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Similarly to WebGL1, they're not supported in OpenGL ES 2.0.

References: https://todo.sr.ht/~eliasnaur/gio/469
Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit is contained in:
Elias Naur
2023-01-06 18:40:22 -06:00
parent 827e20d84d
commit 1a84517b12
1 changed files with 10 additions and 8 deletions
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gpu/internal/opengl/opengl.go
+10 -8
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@@ -303,14 +303,16 @@ func (b *Backend) EndFrame() {
func (b *Backend) queryState() glState {
s := glState{
prog: gl.Program(b.funcs.GetBinding(gl.CURRENT_PROGRAM)),
arrayBuf: gl.Buffer(b.funcs.GetBinding(gl.ARRAY_BUFFER_BINDING)),
elemBuf: gl.Buffer(b.funcs.GetBinding(gl.ELEMENT_ARRAY_BUFFER_BINDING)),
drawFBO: gl.Framebuffer(b.funcs.GetBinding(gl.FRAMEBUFFER_BINDING)),
clearColor: b.funcs.GetFloat4(gl.COLOR_CLEAR_VALUE),
viewport: b.funcs.GetInteger4(gl.VIEWPORT),
unpack_row_length: b.funcs.GetInteger(gl.UNPACK_ROW_LENGTH),
pack_row_length: b.funcs.GetInteger(gl.PACK_ROW_LENGTH),
prog: gl.Program(b.funcs.GetBinding(gl.CURRENT_PROGRAM)),
arrayBuf: gl.Buffer(b.funcs.GetBinding(gl.ARRAY_BUFFER_BINDING)),
elemBuf: gl.Buffer(b.funcs.GetBinding(gl.ELEMENT_ARRAY_BUFFER_BINDING)),
drawFBO: gl.Framebuffer(b.funcs.GetBinding(gl.FRAMEBUFFER_BINDING)),
clearColor: b.funcs.GetFloat4(gl.COLOR_CLEAR_VALUE),
viewport: b.funcs.GetInteger4(gl.VIEWPORT),
}
if !b.gles || b.glver[0] > 2 {
s.unpack_row_length = b.funcs.GetInteger(gl.UNPACK_ROW_LENGTH)
s.pack_row_length = b.funcs.GetInteger(gl.PACK_ROW_LENGTH)
}
s.blend.enable = b.funcs.IsEnabled(gl.BLEND)
s.blend.srcRGB = gl.Enum(b.funcs.GetInteger(gl.BLEND_SRC_RGB))