diff options
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_state_fs.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_state_fs.c b/src/gallium/drivers/llvmpipe/lp_state_fs.c index a305109c010..373994186e7 100644 --- a/src/gallium/drivers/llvmpipe/lp_state_fs.c +++ b/src/gallium/drivers/llvmpipe/lp_state_fs.c @@ -1671,6 +1671,35 @@ generate_unswizzled_blend(struct gallivm_state *gallivm, /* Convert */ lp_build_conv(gallivm, fs_type, blend_type, &blend_color, 1, &blend_color, 1); + if (out_format_desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB) { + /* + * since blending is done with floats, there was no conversion. + * However, the rules according to fixed point renderbuffers still + * apply, that is we must clamp inputs to 0.0/1.0. + * (This would apply to separate alpha conversion too but we currently + * force has_alpha to be true.) + * TODO: should skip this with "fake" blend, since post-blend conversion + * will clamp anyway. + * TODO: could also skip this if fragment color clamping is enabled. We + * don't support it natively so it gets baked into the shader however, so + * can't really tell here. + */ + struct lp_build_context f32_bld; + assert(row_type.floating); + lp_build_context_init(&f32_bld, gallivm, row_type); + for (i = 0; i < src_count; i++) { + src[i] = lp_build_clamp(&f32_bld, src[i], f32_bld.zero, f32_bld.one); + } + if (dual_source_blend) { + for (i = 0; i < src_count; i++) { + src1[i] = lp_build_clamp(&f32_bld, src1[i], f32_bld.zero, f32_bld.one); + } + } + /* probably can't be different than row_type but better safe than sorry... */ + lp_build_context_init(&f32_bld, gallivm, blend_type); + blend_color = lp_build_clamp(&f32_bld, blend_color, f32_bld.zero, f32_bld.one); + } + /* Extract alpha */ blend_alpha = lp_build_extract_broadcast(gallivm, blend_type, row_type, blend_color, lp_build_const_int32(gallivm, 3)); @@ -1827,6 +1856,12 @@ generate_unswizzled_blend(struct gallivm_state *gallivm, */ convert_to_blend_type(gallivm, block_size, out_format_desc, dst_type, row_type, dst, src_count); + /* + * FIXME: Really should get logic ops / masks out of generic blend / row + * format. Logic ops will definitely not work on the blend float format + * used for SRGB here and I think OpenGL expects this to work as expected + * (that is incoming values converted to srgb then logic op applied). + */ for (i = 0; i < src_count; ++i) { dst[i] = lp_build_blend_aos(gallivm, &variant->key.blend, |