diff options
Diffstat (limited to 'src/gallium/state_trackers/vega/shader.c')
| -rw-r--r-- | src/gallium/state_trackers/vega/shader.c | 40 |
1 files changed, 33 insertions, 7 deletions
diff --git a/src/gallium/state_trackers/vega/shader.c b/src/gallium/state_trackers/vega/shader.c index 20ced813b4..8577d21efe 100644 --- a/src/gallium/state_trackers/vega/shader.c +++ b/src/gallium/state_trackers/vega/shader.c @@ -209,6 +209,7 @@ static void setup_shader_program(struct shader *shader) VGint shader_id = 0; VGBlendMode blend_mode = ctx->state.vg.blend_mode; VGboolean black_white = is_format_bw(shader); + VGboolean advanced_blend; /* 1st stage: fill */ if (!shader->drawing_image || @@ -257,22 +258,47 @@ static void setup_shader_program(struct shader *shader) switch(blend_mode) { case VG_BLEND_MULTIPLY: - shader_id |= VEGA_BLEND_MULTIPLY_SHADER; - break; case VG_BLEND_SCREEN: - shader_id |= VEGA_BLEND_SCREEN_SHADER; - break; case VG_BLEND_DARKEN: - shader_id |= VEGA_BLEND_DARKEN_SHADER; - break; case VG_BLEND_LIGHTEN: - shader_id |= VEGA_BLEND_LIGHTEN_SHADER; + advanced_blend = VG_TRUE; break; default: /* handled by pipe_blend_state */ + advanced_blend = VG_FALSE; break; } + if (advanced_blend) { + if (shader->drawing_image && shader->image_mode == VG_DRAW_IMAGE_STENCIL) + shader_id |= VEGA_ALPHA_PER_CHANNEL_SHADER; + else + shader_id |= VEGA_ALPHA_NORMAL_SHADER; + + switch(blend_mode) { + case VG_BLEND_MULTIPLY: + shader_id |= VEGA_BLEND_MULTIPLY_SHADER; + break; + case VG_BLEND_SCREEN: + shader_id |= VEGA_BLEND_SCREEN_SHADER; + break; + case VG_BLEND_DARKEN: + shader_id |= VEGA_BLEND_DARKEN_SHADER; + break; + case VG_BLEND_LIGHTEN: + shader_id |= VEGA_BLEND_LIGHTEN_SHADER; + break; + default: + assert(0); + break; + } + } + else { + /* update alpha of the source */ + if (shader->drawing_image && shader->image_mode == VG_DRAW_IMAGE_STENCIL) + shader_id |= VEGA_ALPHA_PER_CHANNEL_SHADER; + } + if (shader->masking) shader_id |= VEGA_MASK_SHADER; |