#include "pipe/p_defines.h"
#include "util/u_math.h"
#include "util/u_memory.h"
+#include "util/u_format.h"
#include "sp_context.h"
#include "sp_quad.h"
-#include "sp_surface.h"
#include "sp_tile_cache.h"
#include "sp_quad_pipe.h"
res4[j] = ~0;
break;
default:
- assert(0);
+ assert(0 && "invalid logicop mode");
}
for (j = 0; j < 4; j++) {
+/**
+ * Do blending for a 2x2 quad for one color buffer.
+ * \param quadColor the incoming quad colors
+ * \param dest the destination/framebuffer quad colors
+ * \param blend_index which set of blending terms to use
+ * \param has_dst_alpha does the dest color buffer have an alpha channel?
+ */
static void
blend_quad(struct quad_stage *qs,
float (*quadColor)[4],
- float (*dest)[4])
+ float (*dest)[4],
+ unsigned blend_index,
+ boolean has_dst_alpha)
{
static const float zero[4] = { 0, 0, 0, 0 };
static const float one[4] = { 1, 1, 1, 1 };
struct softpipe_context *softpipe = qs->softpipe;
- float source[4][QUAD_SIZE];
+ float source[4][QUAD_SIZE] = { { 0 } };
/*
* Compute src/first term RGB
*/
- switch (softpipe->blend->rgb_src_factor) {
+ switch (softpipe->blend->rt[blend_index].rgb_src_factor) {
case PIPE_BLENDFACTOR_ONE:
VEC4_COPY(source[0], quadColor[0]); /* R */
VEC4_COPY(source[1], quadColor[1]); /* G */
VEC4_MUL(source[2], quadColor[2], dest[2]); /* B */
break;
case PIPE_BLENDFACTOR_DST_ALPHA:
- {
- const float *alpha = dest[3];
- VEC4_MUL(source[0], quadColor[0], alpha); /* R */
- VEC4_MUL(source[1], quadColor[1], alpha); /* G */
- VEC4_MUL(source[2], quadColor[2], alpha); /* B */
- }
- break;
+ if (has_dst_alpha) {
+ const float *alpha = dest[3];
+ VEC4_MUL(source[0], quadColor[0], alpha); /* R */
+ VEC4_MUL(source[1], quadColor[1], alpha); /* G */
+ VEC4_MUL(source[2], quadColor[2], alpha); /* B */
+ }
+ else {
+ VEC4_COPY(source[0], quadColor[0]); /* R */
+ VEC4_COPY(source[1], quadColor[1]); /* G */
+ VEC4_COPY(source[2], quadColor[2]); /* B */
+ }
+ break;
case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
- {
- const float *alpha = quadColor[3];
- float diff[4], temp[4];
- VEC4_SUB(diff, one, dest[3]);
- VEC4_MIN(temp, alpha, diff);
- VEC4_MUL(source[0], quadColor[0], temp); /* R */
- VEC4_MUL(source[1], quadColor[1], temp); /* G */
- VEC4_MUL(source[2], quadColor[2], temp); /* B */
- }
- break;
+ if (has_dst_alpha) {
+ const float *alpha = quadColor[3];
+ float diff[4], temp[4];
+ VEC4_SUB(diff, one, dest[3]);
+ VEC4_MIN(temp, alpha, diff);
+ VEC4_MUL(source[0], quadColor[0], temp); /* R */
+ VEC4_MUL(source[1], quadColor[1], temp); /* G */
+ VEC4_MUL(source[2], quadColor[2], temp); /* B */
+ }
+ else {
+ VEC4_COPY(source[0], zero); /* R */
+ VEC4_COPY(source[1], zero); /* G */
+ VEC4_COPY(source[2], zero); /* B */
+ }
+ break;
case PIPE_BLENDFACTOR_CONST_COLOR:
{
float comp[4];
}
break;
case PIPE_BLENDFACTOR_INV_DST_ALPHA:
- {
- float inv_alpha[4];
- VEC4_SUB(inv_alpha, one, dest[3]);
- VEC4_MUL(source[0], quadColor[0], inv_alpha); /* R */
- VEC4_MUL(source[1], quadColor[1], inv_alpha); /* G */
- VEC4_MUL(source[2], quadColor[2], inv_alpha); /* B */
- }
- break;
+ if (has_dst_alpha) {
+ float inv_alpha[4];
+ VEC4_SUB(inv_alpha, one, dest[3]);
+ VEC4_MUL(source[0], quadColor[0], inv_alpha); /* R */
+ VEC4_MUL(source[1], quadColor[1], inv_alpha); /* G */
+ VEC4_MUL(source[2], quadColor[2], inv_alpha); /* B */
+ }
+ else {
+ VEC4_COPY(source[0], zero); /* R */
+ VEC4_COPY(source[1], zero); /* G */
+ VEC4_COPY(source[2], zero); /* B */
+ }
+ break;
case PIPE_BLENDFACTOR_INV_DST_COLOR:
{
float inv_comp[4];
assert(0); /* to do */
break;
default:
- assert(0);
+ assert(0 && "invalid rgb src factor");
}
/*
* Compute src/first term A
*/
- switch (softpipe->blend->alpha_src_factor) {
+ switch (softpipe->blend->rt[blend_index].alpha_src_factor) {
case PIPE_BLENDFACTOR_ONE:
VEC4_COPY(source[3], quadColor[3]); /* A */
break;
case PIPE_BLENDFACTOR_DST_COLOR:
/* fall-through */
case PIPE_BLENDFACTOR_DST_ALPHA:
- VEC4_MUL(source[3], quadColor[3], dest[3]); /* A */
+ if (has_dst_alpha)
+ VEC4_MUL(source[3], quadColor[3], dest[3]); /* A */
+ else
+ VEC4_COPY(source[3], quadColor[3]); /* A */
break;
case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
/* multiply alpha by 1.0 */
case PIPE_BLENDFACTOR_INV_DST_COLOR:
/* fall-through */
case PIPE_BLENDFACTOR_INV_DST_ALPHA:
- {
- float inv_alpha[4];
- VEC4_SUB(inv_alpha, one, dest[3]);
- VEC4_MUL(source[3], quadColor[3], inv_alpha); /* A */
- }
- break;
+ if (has_dst_alpha) {
+ float inv_alpha[4];
+ VEC4_SUB(inv_alpha, one, dest[3]);
+ VEC4_MUL(source[3], quadColor[3], inv_alpha); /* A */
+ }
+ else {
+ VEC4_COPY(source[3], zero); /* A */
+ }
+ break;
case PIPE_BLENDFACTOR_INV_CONST_COLOR:
/* fall-through */
case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
}
break;
default:
- assert(0);
+ assert(0 && "invalid alpha src factor");
}
/*
* Compute dest/second term RGB
*/
- switch (softpipe->blend->rgb_dst_factor) {
+ switch (softpipe->blend->rt[blend_index].rgb_dst_factor) {
case PIPE_BLENDFACTOR_ONE:
/* dest = dest * 1 NO-OP, leave dest as-is */
break;
VEC4_MUL(dest[2], dest[2], quadColor[3]); /* B * A */
break;
case PIPE_BLENDFACTOR_DST_ALPHA:
- VEC4_MUL(dest[0], dest[0], dest[3]); /* R * A */
- VEC4_MUL(dest[1], dest[1], dest[3]); /* G * A */
- VEC4_MUL(dest[2], dest[2], dest[3]); /* B * A */
+ if (has_dst_alpha) {
+ VEC4_MUL(dest[0], dest[0], dest[3]); /* R * A */
+ VEC4_MUL(dest[1], dest[1], dest[3]); /* G * A */
+ VEC4_MUL(dest[2], dest[2], dest[3]); /* B * A */
+ }
+ else {
+ /* dest = dest * 1 NO-OP, leave dest as-is */
+ }
break;
case PIPE_BLENDFACTOR_DST_COLOR:
VEC4_MUL(dest[0], dest[0], dest[0]); /* R */
VEC4_MUL(dest[2], dest[2], dest[2]); /* B */
break;
case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
- assert(0); /* illegal */
+ if (has_dst_alpha) {
+ const float *alpha = quadColor[3];
+ float diff[4], temp[4];
+ VEC4_SUB(diff, one, dest[3]);
+ VEC4_MIN(temp, alpha, diff);
+ VEC4_MUL(dest[0], quadColor[0], temp); /* R */
+ VEC4_MUL(dest[1], quadColor[1], temp); /* G */
+ VEC4_MUL(dest[2], quadColor[2], temp); /* B */
+ }
+ else {
+ VEC4_COPY(dest[0], zero); /* R */
+ VEC4_COPY(dest[1], zero); /* G */
+ VEC4_COPY(dest[2], zero); /* B */
+ }
break;
case PIPE_BLENDFACTOR_CONST_COLOR:
{
}
break;
case PIPE_BLENDFACTOR_INV_DST_ALPHA:
- {
- float inv_comp[4];
- VEC4_SUB(inv_comp, one, dest[3]); /* A */
- VEC4_MUL(dest[0], inv_comp, dest[0]); /* R */
- VEC4_MUL(dest[1], inv_comp, dest[1]); /* G */
- VEC4_MUL(dest[2], inv_comp, dest[2]); /* B */
- }
+ if (has_dst_alpha) {
+ float inv_comp[4];
+ VEC4_SUB(inv_comp, one, dest[3]); /* A */
+ VEC4_MUL(dest[0], inv_comp, dest[0]); /* R */
+ VEC4_MUL(dest[1], inv_comp, dest[1]); /* G */
+ VEC4_MUL(dest[2], inv_comp, dest[2]); /* B */
+ }
+ else {
+ VEC4_COPY(dest[0], zero); /* R */
+ VEC4_COPY(dest[1], zero); /* G */
+ VEC4_COPY(dest[2], zero); /* B */
+ }
break;
case PIPE_BLENDFACTOR_INV_DST_COLOR:
{
assert(0);
break;
default:
- assert(0);
+ assert(0 && "invalid rgb dst factor");
}
/*
* Compute dest/second term A
*/
- switch (softpipe->blend->alpha_dst_factor) {
+ switch (softpipe->blend->rt[blend_index].alpha_dst_factor) {
case PIPE_BLENDFACTOR_ONE:
/* dest = dest * 1 NO-OP, leave dest as-is */
break;
case PIPE_BLENDFACTOR_DST_COLOR:
/* fall-through */
case PIPE_BLENDFACTOR_DST_ALPHA:
- VEC4_MUL(dest[3], dest[3], dest[3]); /* A */
+ if (has_dst_alpha) {
+ VEC4_MUL(dest[3], dest[3], dest[3]); /* A */
+ }
+ else {
+ /* dest = dest * 1 NO-OP, leave dest as-is */
+ }
break;
case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
- assert(0); /* illegal */
+ /* dest = dest * 1 NO-OP, leave dest as-is */
break;
case PIPE_BLENDFACTOR_CONST_COLOR:
/* fall-through */
case PIPE_BLENDFACTOR_INV_DST_COLOR:
/* fall-through */
case PIPE_BLENDFACTOR_INV_DST_ALPHA:
- {
- float inv_comp[4];
- VEC4_SUB(inv_comp, one, dest[3]); /* A */
- VEC4_MUL(dest[3], inv_comp, dest[3]); /* A */
- }
- break;
+ if (has_dst_alpha) {
+ float inv_comp[4];
+ VEC4_SUB(inv_comp, one, dest[3]); /* A */
+ VEC4_MUL(dest[3], inv_comp, dest[3]); /* A */
+ }
+ else {
+ VEC4_COPY(dest[3], zero); /* A */
+ }
+ break;
case PIPE_BLENDFACTOR_INV_CONST_COLOR:
/* fall-through */
case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
}
break;
default:
- assert(0);
+ assert(0 && "invalid alpha dst factor");
}
/*
* Combine RGB terms
*/
- switch (softpipe->blend->rgb_func) {
+ switch (softpipe->blend->rt[blend_index].rgb_func) {
case PIPE_BLEND_ADD:
VEC4_ADD_SAT(quadColor[0], source[0], dest[0]); /* R */
VEC4_ADD_SAT(quadColor[1], source[1], dest[1]); /* G */
VEC4_MAX(quadColor[2], source[2], dest[2]); /* B */
break;
default:
- assert(0);
+ assert(0 && "invalid rgb blend func");
}
/*
* Combine A terms
*/
- switch (softpipe->blend->alpha_func) {
+ switch (softpipe->blend->rt[blend_index].alpha_func) {
case PIPE_BLEND_ADD:
VEC4_ADD_SAT(quadColor[3], source[3], dest[3]); /* A */
break;
VEC4_MAX(quadColor[3], source[3], dest[3]); /* A */
break;
default:
- assert(0);
+ assert(0 && "invalid alpha blend func");
}
}
static void
-colormask_quad(struct quad_stage *qs,
+colormask_quad(unsigned colormask,
float (*quadColor)[4],
float (*dest)[4])
{
- struct softpipe_context *softpipe = qs->softpipe;
-
/* R */
- if (!(softpipe->blend->colormask & PIPE_MASK_R))
+ if (!(colormask & PIPE_MASK_R))
COPY_4V(quadColor[0], dest[0]);
/* G */
- if (!(softpipe->blend->colormask & PIPE_MASK_G))
+ if (!(colormask & PIPE_MASK_G))
COPY_4V(quadColor[1], dest[1]);
/* B */
- if (!(softpipe->blend->colormask & PIPE_MASK_B))
+ if (!(colormask & PIPE_MASK_B))
COPY_4V(quadColor[2], dest[2]);
/* A */
- if (!(softpipe->blend->colormask & PIPE_MASK_A))
+ if (!(colormask & PIPE_MASK_A))
COPY_4V(quadColor[3], dest[3]);
}
for (cbuf = 0; cbuf < softpipe->framebuffer.nr_cbufs; cbuf++)
{
+ /* which blend/mask state index to use: */
+ const uint blend_buf = blend->independent_blend_enable ? cbuf : 0;
float dest[4][QUAD_SIZE];
struct softpipe_cached_tile *tile
= sp_get_cached_tile(softpipe->cbuf_cache[cbuf],
quads[0]->input.x0,
quads[0]->input.y0);
+ boolean has_dst_alpha
+ = util_format_has_alpha(softpipe->framebuffer.cbufs[cbuf]->format);
uint q, i, j;
for (q = 0; q < nr; q++) {
if (blend->logicop_enable) {
logicop_quad( qs, quadColor, dest );
}
- else if (blend->blend_enable) {
- blend_quad( qs, quadColor, dest );
+ else if (blend->rt[blend_buf].blend_enable) {
+ blend_quad( qs, quadColor, dest, blend_buf, has_dst_alpha );
}
- if (blend->colormask != 0xf)
- colormask_quad( qs, quadColor, dest );
+ if (blend->rt[blend_buf].colormask != 0xf)
+ colormask_quad( blend->rt[cbuf].colormask, quadColor, dest);
/* Output color values
*/
qs->run = blend_noop;
}
else if (!softpipe->blend->logicop_enable &&
- softpipe->blend->colormask == 0xf &&
+ softpipe->blend->rt[0].colormask == 0xf &&
softpipe->framebuffer.nr_cbufs == 1)
{
- if (!blend->blend_enable) {
+ if (!blend->rt[0].blend_enable) {
qs->run = single_output_color;
}
- else if (blend->rgb_src_factor == blend->alpha_src_factor &&
- blend->rgb_dst_factor == blend->alpha_dst_factor &&
- blend->rgb_func == blend->alpha_func)
+ else if (blend->rt[0].rgb_src_factor == blend->rt[0].alpha_src_factor &&
+ blend->rt[0].rgb_dst_factor == blend->rt[0].alpha_dst_factor &&
+ blend->rt[0].rgb_func == blend->rt[0].alpha_func)
{
- if (blend->alpha_func == PIPE_BLEND_ADD) {
- if (blend->rgb_src_factor == PIPE_BLENDFACTOR_ONE &&
- blend->rgb_dst_factor == PIPE_BLENDFACTOR_ONE) {
+ if (blend->rt[0].alpha_func == PIPE_BLEND_ADD) {
+ if (blend->rt[0].rgb_src_factor == PIPE_BLENDFACTOR_ONE &&
+ blend->rt[0].rgb_dst_factor == PIPE_BLENDFACTOR_ONE) {
qs->run = blend_single_add_one_one;
}
- else if (blend->rgb_src_factor == PIPE_BLENDFACTOR_SRC_ALPHA &&
- blend->rgb_dst_factor == PIPE_BLENDFACTOR_INV_SRC_ALPHA)
+ else if (blend->rt[0].rgb_src_factor == PIPE_BLENDFACTOR_SRC_ALPHA &&
+ blend->rt[0].rgb_dst_factor == PIPE_BLENDFACTOR_INV_SRC_ALPHA)
qs->run = blend_single_add_src_alpha_inv_src_alpha;
}