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renderer: patch blending up before draws.

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We might need to patch blending state up for xrgb destinations,
and for for a8/a16 destinations we need to patch colormask and
blendcolor.
macos/master
Dave Airlie 9 years ago
parent bd64c81fc2
commit 23d4d5caa5
1 changed files with 73 additions and 80 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 153
      src/vrend_renderer.c

153
src/vrend_renderer.c
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@ -344,6 +344,8 @@ struct vrend_sub_context {
struct list_head streamout_list;
struct vrend_streamout_object *current_so;
struct pipe_blend_color blend_color;
};
struct vrend_context {
@ -378,7 +380,7 @@ static void vrend_update_viewport_state(struct vrend_context *ctx);
static void vrend_update_scissor_state(struct vrend_context *ctx);
static void vrend_destroy_query_object(void *obj_ptr);
static void vrend_finish_context_switch(struct vrend_context *ctx);
static void vrend_patch_blend_func(struct vrend_context *ctx);
static void vrend_patch_blend_state(struct vrend_context *ctx);
static void vrend_update_frontface_state(struct vrend_context *ctx);
static void vrender_get_glsl_version(int *glsl_version);
static void vrend_destroy_resource_object(void *obj_ptr);
@ -2602,7 +2604,7 @@ void vrend_draw_vbo(struct vrend_context *ctx,
if (ctx->sub->viewport_state_dirty)
vrend_update_viewport_state(ctx);
vrend_patch_blend_func(ctx);
vrend_patch_blend_state(ctx);
if (ctx->sub->shader_dirty) {
struct vrend_linked_shader_program *prog;
@ -2884,84 +2886,8 @@ static inline int conv_dst_blend(int blend_factor)
return blend_factor;
}
static void vrend_patch_blend_func(struct vrend_context *ctx)
static void vrend_hw_emit_blend(struct vrend_context *ctx, struct pipe_blend_state *state)
{
struct pipe_blend_state *state = &ctx->sub->blend_state;
int i;
int rsf, rdf, asf, adf;
bool a8_conv = false;
if (ctx->sub->nr_cbufs == 0)
return;
for (i = 0; i < ctx->sub->nr_cbufs; i++) {
if (!ctx->sub->surf[i])
continue;
if (vrend_format_is_emulated_alpha(ctx->sub->surf[i]->format)) {
a8_conv = true;
break;
}
if (!util_format_has_alpha(ctx->sub->surf[i]->format))
break;
}
if (i == ctx->sub->nr_cbufs)
return;
if (state->independent_blend_enable) {
/* ARB_draw_buffers_blend is required for this */
for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
if (state->rt[i].blend_enable) {
if (a8_conv) {
rsf = translate_blend_factor(conv_a8_blend(state->rt[i].alpha_src_factor));
rdf = translate_blend_factor(conv_a8_blend(state->rt[i].alpha_dst_factor));
asf = translate_blend_factor(PIPE_BLENDFACTOR_ZERO);
adf = translate_blend_factor(PIPE_BLENDFACTOR_ZERO);
} else {
if (!(is_dst_blend(state->rt[i].rgb_src_factor) ||
is_dst_blend(state->rt[i].rgb_dst_factor) ||
is_dst_blend(state->rt[i].alpha_src_factor) ||
is_dst_blend(state->rt[i].alpha_dst_factor)))
continue;
rsf = translate_blend_factor(conv_dst_blend(state->rt[i].rgb_src_factor));
rdf = translate_blend_factor(conv_dst_blend(state->rt[i].rgb_dst_factor));
asf = translate_blend_factor(conv_dst_blend(state->rt[i].alpha_src_factor));
adf = translate_blend_factor(conv_dst_blend(state->rt[i].alpha_dst_factor));
}
glBlendFuncSeparateiARB(i, rsf, rdf, asf, adf);
}
}
} else {
if (state->rt[0].blend_enable) {
if (a8_conv) {
rsf = translate_blend_factor(conv_a8_blend(state->rt[i].alpha_src_factor));
rdf = translate_blend_factor(conv_a8_blend(state->rt[i].alpha_dst_factor));
asf = translate_blend_factor(PIPE_BLENDFACTOR_ZERO);
adf = translate_blend_factor(PIPE_BLENDFACTOR_ZERO);
} else {
if (!(is_dst_blend(state->rt[0].rgb_src_factor) ||
is_dst_blend(state->rt[0].rgb_dst_factor) ||
is_dst_blend(state->rt[0].alpha_src_factor) ||
is_dst_blend(state->rt[0].alpha_dst_factor)))
return;
rsf = translate_blend_factor(conv_dst_blend(state->rt[i].rgb_src_factor));
rdf = translate_blend_factor(conv_dst_blend(state->rt[i].rgb_dst_factor));
asf = translate_blend_factor(conv_dst_blend(state->rt[i].alpha_src_factor));
adf = translate_blend_factor(conv_dst_blend(state->rt[i].alpha_dst_factor));
}
glBlendFuncSeparate(rsf, rdf, asf, adf);
}
}
}
static void vrend_hw_emit_blend(struct vrend_context *ctx)
{
struct pipe_blend_state *state = &ctx->sub->blend_state;
if (state->logicop_enable != ctx->sub->hw_blend_state.logicop_enable) {
ctx->sub->hw_blend_state.logicop_enable = state->logicop_enable;
if (state->logicop_enable) {
@ -3032,6 +2958,72 @@ static void vrend_hw_emit_blend(struct vrend_context *ctx)
}
}
/* there are a few reasons we might need to patch the blend state.
a) patching blend factors for dst with no alpha
b) patching colormask/blendcolor/blendfactors for A8/A16 format
emulation using GL_R8/GL_R16.
*/
static void vrend_patch_blend_state(struct vrend_context *ctx)
{
struct pipe_blend_state new_state = ctx->sub->blend_state;
struct pipe_blend_state *state = &ctx->sub->blend_state;
bool dest_alpha_only = false, dest_has_no_alpha = false;
struct pipe_blend_color blend_color = ctx->sub->blend_color;
int i;
if (ctx->sub->nr_cbufs == 0)
return;
for (i = 0; i < ctx->sub->nr_cbufs; i++) {
if (!ctx->sub->surf[i])
continue;
if (vrend_format_is_emulated_alpha(ctx->sub->surf[i]->format)) {
dest_alpha_only = true;
}
if (!util_format_has_alpha(ctx->sub->surf[i]->format)) {
dest_has_no_alpha = true;
}
}
if (dest_alpha_only) {
for (i = 0; i < (state->independent_blend_enable ? PIPE_MAX_COLOR_BUFS : 1); i++) {
if (state->rt[i].blend_enable) {
new_state.rt[i].rgb_src_factor = conv_a8_blend(state->rt[i].alpha_src_factor);
new_state.rt[i].rgb_dst_factor = conv_a8_blend(state->rt[i].alpha_dst_factor);
new_state.rt[i].alpha_src_factor = PIPE_BLENDFACTOR_ZERO;
new_state.rt[i].alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
}
new_state.rt[i].colormask = 0;
if (state->rt[i].colormask & PIPE_MASK_A)
new_state.rt[i].colormask |= PIPE_MASK_R;
}
blend_color.color[0] = blend_color.color[3];
blend_color.color[1] = 0.0f;
blend_color.color[2] = 0.0f;
blend_color.color[3] = 0.0f;
} else if (dest_has_no_alpha) {
for (i = 0; i < (state->independent_blend_enable ? PIPE_MAX_COLOR_BUFS : 1); i++) {
if (!(is_dst_blend(state->rt[i].rgb_src_factor) ||
is_dst_blend(state->rt[i].rgb_dst_factor) ||
is_dst_blend(state->rt[i].alpha_src_factor) ||
is_dst_blend(state->rt[i].alpha_dst_factor)))
continue;
new_state.rt[i].rgb_src_factor = conv_dst_blend(state->rt[i].rgb_src_factor);
new_state.rt[i].rgb_dst_factor = conv_dst_blend(state->rt[i].rgb_dst_factor);
new_state.rt[i].alpha_src_factor = conv_dst_blend(state->rt[i].alpha_src_factor);
new_state.rt[i].alpha_dst_factor = conv_dst_blend(state->rt[i].alpha_dst_factor);
}
}
vrend_hw_emit_blend(ctx, &new_state);
glBlendColor(blend_color.color[0],
blend_color.color[1],
blend_color.color[2],
blend_color.color[3]);
}
void vrend_object_bind_blend(struct vrend_context *ctx,
uint32_t handle)
{
@ -3050,7 +3042,7 @@ void vrend_object_bind_blend(struct vrend_context *ctx,
ctx->sub->blend_state = *state;
vrend_hw_emit_blend(ctx);
vrend_hw_emit_blend(ctx, &ctx->sub->blend_state);
}
static void vrend_hw_emit_dsa(struct vrend_context *ctx)
@ -4734,6 +4726,7 @@ void vrend_set_stencil_ref(struct vrend_context *ctx,
void vrend_set_blend_color(struct vrend_context *ctx,
struct pipe_blend_color *color)
{
ctx->sub->blend_color = *color;
glBlendColor(color->color[0], color->color[1], color->color[2],
color->color[3]);
}

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