diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/compiler/glsl/lower_blend_equation_advanced.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/compiler/glsl/lower_blend_equation_advanced.cpp b/src/compiler/glsl/lower_blend_equation_advanced.cpp index 1d033924159..f8210e3aaa5 100644 --- a/src/compiler/glsl/lower_blend_equation_advanced.cpp +++ b/src/compiler/glsl/lower_blend_equation_advanced.cpp @@ -308,12 +308,18 @@ calc_blend_result(ir_factory f, f.emit(assign(dst_alpha, swizzle_w(fb))); f.emit(if_tree(equal(dst_alpha, imm1(0)), assign(dst_rgb, imm3(0)), - assign(dst_rgb, div(swizzle_xyz(fb), dst_alpha)))); + assign(dst_rgb, csel(equal(swizzle_xyz(fb), + swizzle(fb, SWIZZLE_WWWW, 3)), + imm3(1), + div(swizzle_xyz(fb), dst_alpha))))); f.emit(assign(src_alpha, swizzle_w(src))); f.emit(if_tree(equal(src_alpha, imm1(0)), assign(src_rgb, imm3(0)), - assign(src_rgb, div(swizzle_xyz(src), src_alpha)))); + assign(src_rgb, csel(equal(swizzle_xyz(src), + swizzle(src, SWIZZLE_WWWW, 3)), + imm3(1), + div(swizzle_xyz(src), src_alpha))))); ir_variable *factor = f.make_temp(glsl_type::vec3_type, "__blend_factor"); |