gallium: begin reworking quad stages for multiple color outputs

1 files changed, 602 insertions, 590 deletions

diff --git a/src/gallium/drivers/softpipe/sp_quad_blend.c b/src/gallium/drivers/softpipe/sp_quad_blend.c
index 0b79cfa1ed..8be8025f40 100644
--- a/src/gallium/drivers/softpipe/sp_quad_blend.c
+++ b/src/gallium/drivers/softpipe/sp_quad_blend.c
@@ -101,114 +101,119 @@ static void
 logicop_quad(struct quad_stage *qs, struct quad_header *quad)
 {
    struct softpipe_context *softpipe = qs->softpipe;
-   float dest[4][QUAD_SIZE];
-   ubyte src[4][4], dst[4][4], res[4][4];
-   uint *src4 = (uint *) src;
-   uint *dst4 = (uint *) dst;
-   uint *res4 = (uint *) res;
-   struct softpipe_cached_tile *
-      tile = sp_get_cached_tile(softpipe,
-                                softpipe->cbuf_cache[softpipe->current_cbuf],
-                                quad->x0, quad->y0);
-   float (*quadColor)[4] = quad->outputs.color;
-   uint i, j;
-
-   /* get/swizzle dest colors */
-   for (j = 0; j < QUAD_SIZE; j++) {
-      int x = (quad->x0 & (TILE_SIZE-1)) + (j & 1);
-      int y = (quad->y0 & (TILE_SIZE-1)) + (j >> 1);
-      for (i = 0; i < 4; i++) {
-         dest[i][j] = tile->data.color[y][x][i];
+   uint cbuf;
+
+   /* loop over colorbuffer outputs */
+   for (cbuf = 0; cbuf < softpipe->framebuffer.num_cbufs; cbuf++) {
+      float dest[4][QUAD_SIZE];
+      ubyte src[4][4], dst[4][4], res[4][4];
+      uint *src4 = (uint *) src;
+      uint *dst4 = (uint *) dst;
+      uint *res4 = (uint *) res;
+      struct softpipe_cached_tile *
+         tile = sp_get_cached_tile(softpipe,
+                                   softpipe->cbuf_cache[cbuf],
+                                   quad->x0, quad->y0);
+      float (*quadColor)[4] = quad->outputs.color[cbuf];
+      uint i, j;
+
+      /* get/swizzle dest colors */
+      for (j = 0; j < QUAD_SIZE; j++) {
+         int x = (quad->x0 & (TILE_SIZE-1)) + (j & 1);
+         int y = (quad->y0 & (TILE_SIZE-1)) + (j >> 1);
+         for (i = 0; i < 4; i++) {
+            dest[i][j] = tile->data.color[y][x][i];
+         }
       }
-   }
 
-   /* convert to ubyte */
-   for (j = 0; j < 4; j++) { /* loop over R,G,B,A channels */
-      UNCLAMPED_FLOAT_TO_UBYTE(dst[j][0], dest[j][0]); /* P0 */
-      UNCLAMPED_FLOAT_TO_UBYTE(dst[j][1], dest[j][1]); /* P1 */
-      UNCLAMPED_FLOAT_TO_UBYTE(dst[j][2], dest[j][2]); /* P2 */
-      UNCLAMPED_FLOAT_TO_UBYTE(dst[j][3], dest[j][3]); /* P3 */
-
-      UNCLAMPED_FLOAT_TO_UBYTE(src[j][0], quadColor[j][0]); /* P0 */
-      UNCLAMPED_FLOAT_TO_UBYTE(src[j][1], quadColor[j][1]); /* P1 */
-      UNCLAMPED_FLOAT_TO_UBYTE(src[j][2], quadColor[j][2]); /* P2 */
-      UNCLAMPED_FLOAT_TO_UBYTE(src[j][3], quadColor[j][3]); /* P3 */
-   }
+      /* convert to ubyte */
+      for (j = 0; j < 4; j++) { /* loop over R,G,B,A channels */
+         UNCLAMPED_FLOAT_TO_UBYTE(dst[j][0], dest[j][0]); /* P0 */
+         UNCLAMPED_FLOAT_TO_UBYTE(dst[j][1], dest[j][1]); /* P1 */
+         UNCLAMPED_FLOAT_TO_UBYTE(dst[j][2], dest[j][2]); /* P2 */
+         UNCLAMPED_FLOAT_TO_UBYTE(dst[j][3], dest[j][3]); /* P3 */
+
+         UNCLAMPED_FLOAT_TO_UBYTE(src[j][0], quadColor[j][0]); /* P0 */
+         UNCLAMPED_FLOAT_TO_UBYTE(src[j][1], quadColor[j][1]); /* P1 */
+         UNCLAMPED_FLOAT_TO_UBYTE(src[j][2], quadColor[j][2]); /* P2 */
+         UNCLAMPED_FLOAT_TO_UBYTE(src[j][3], quadColor[j][3]); /* P3 */
+      }
 
-   switch (softpipe->blend->logicop_func) {
-   case PIPE_LOGICOP_CLEAR:
-      for (j = 0; j < 4; j++)
-         res4[j] = 0;
-      break;
-   case PIPE_LOGICOP_NOR:
-      for (j = 0; j < 4; j++)
-         res4[j] = ~(src4[j] | dst4[j]);
-      break;
-   case PIPE_LOGICOP_AND_INVERTED:
-      for (j = 0; j < 4; j++)
-         res4[j] = ~src4[j] & dst4[j];
-      break;
-   case PIPE_LOGICOP_COPY_INVERTED:
-      for (j = 0; j < 4; j++)
-         res4[j] = ~src4[j];
-      break;
-   case PIPE_LOGICOP_AND_REVERSE:
-      for (j = 0; j < 4; j++)
-         res4[j] = src4[j] & ~dst4[j];
-      break;
-   case PIPE_LOGICOP_INVERT:
-      for (j = 0; j < 4; j++)
-         res4[j] = ~dst4[j];
-      break;
-   case PIPE_LOGICOP_XOR:
-      for (j = 0; j < 4; j++)
-         res4[j] = dst4[j] ^ src4[j];
-      break;
-   case PIPE_LOGICOP_NAND:
-      for (j = 0; j < 4; j++)
-         res4[j] = ~(src4[j] & dst4[j]);
-      break;
-   case PIPE_LOGICOP_AND:
-      for (j = 0; j < 4; j++)
-         res4[j] = src4[j] & dst4[j];
-      break;
-   case PIPE_LOGICOP_EQUIV:
-      for (j = 0; j < 4; j++)
-         res4[j] = ~(src4[j] ^ dst4[j]);
-      break;
-   case PIPE_LOGICOP_NOOP:
-      for (j = 0; j < 4; j++)
-         res4[j] = dst4[j];
-      break;
-   case PIPE_LOGICOP_OR_INVERTED:
-      for (j = 0; j < 4; j++)
-         res4[j] = ~src4[j] | dst4[j];
-      break;
-   case PIPE_LOGICOP_COPY:
-      for (j = 0; j < 4; j++)
-         res4[j] = src4[j];
-      break;
-   case PIPE_LOGICOP_OR_REVERSE:
-      for (j = 0; j < 4; j++)
-         res4[j] = src4[j] | ~dst4[j];
-      break;
-   case PIPE_LOGICOP_OR:
-      for (j = 0; j < 4; j++)
-         res4[j] = src4[j] | dst4[j];
-      break;
-   case PIPE_LOGICOP_SET:
-      for (j = 0; j < 4; j++)
-         res4[j] = ~0;
-      break;
-   default:
-      assert(0);
-   }
+      switch (softpipe->blend->logicop_func) {
+      case PIPE_LOGICOP_CLEAR:
+         for (j = 0; j < 4; j++)
+            res4[j] = 0;
+         break;
+      case PIPE_LOGICOP_NOR:
+         for (j = 0; j < 4; j++)
+            res4[j] = ~(src4[j] | dst4[j]);
+         break;
+      case PIPE_LOGICOP_AND_INVERTED:
+         for (j = 0; j < 4; j++)
+            res4[j] = ~src4[j] & dst4[j];
+         break;
+      case PIPE_LOGICOP_COPY_INVERTED:
+         for (j = 0; j < 4; j++)
+            res4[j] = ~src4[j];
+         break;
+      case PIPE_LOGICOP_AND_REVERSE:
+         for (j = 0; j < 4; j++)
+            res4[j] = src4[j] & ~dst4[j];
+         break;
+      case PIPE_LOGICOP_INVERT:
+         for (j = 0; j < 4; j++)
+            res4[j] = ~dst4[j];
+         break;
+      case PIPE_LOGICOP_XOR:
+         for (j = 0; j < 4; j++)
+            res4[j] = dst4[j] ^ src4[j];
+         break;
+      case PIPE_LOGICOP_NAND:
+         for (j = 0; j < 4; j++)
+            res4[j] = ~(src4[j] & dst4[j]);
+         break;
+      case PIPE_LOGICOP_AND:
+         for (j = 0; j < 4; j++)
+            res4[j] = src4[j] & dst4[j];
+         break;
+      case PIPE_LOGICOP_EQUIV:
+         for (j = 0; j < 4; j++)
+            res4[j] = ~(src4[j] ^ dst4[j]);
+         break;
+      case PIPE_LOGICOP_NOOP:
+         for (j = 0; j < 4; j++)
+            res4[j] = dst4[j];
+         break;
+      case PIPE_LOGICOP_OR_INVERTED:
+         for (j = 0; j < 4; j++)
+            res4[j] = ~src4[j] | dst4[j];
+         break;
+      case PIPE_LOGICOP_COPY:
+         for (j = 0; j < 4; j++)
+            res4[j] = src4[j];
+         break;
+      case PIPE_LOGICOP_OR_REVERSE:
+         for (j = 0; j < 4; j++)
+            res4[j] = src4[j] | ~dst4[j];
+         break;
+      case PIPE_LOGICOP_OR:
+         for (j = 0; j < 4; j++)
+            res4[j] = src4[j] | dst4[j];
+         break;
+      case PIPE_LOGICOP_SET:
+         for (j = 0; j < 4; j++)
+            res4[j] = ~0;
+         break;
+      default:
+         assert(0);
+      }
 
-   for (j = 0; j < 4; j++) {
-      quadColor[j][0] = UBYTE_TO_FLOAT(res[j][0]);
-      quadColor[j][1] = UBYTE_TO_FLOAT(res[j][1]);
-      quadColor[j][2] = UBYTE_TO_FLOAT(res[j][2]);
-      quadColor[j][3] = UBYTE_TO_FLOAT(res[j][3]);
+      for (j = 0; j < 4; j++) {
+         quadColor[j][0] = UBYTE_TO_FLOAT(res[j][0]);
+         quadColor[j][1] = UBYTE_TO_FLOAT(res[j][1]);
+         quadColor[j][2] = UBYTE_TO_FLOAT(res[j][2]);
+         quadColor[j][3] = UBYTE_TO_FLOAT(res[j][3]);
+      }
    }
 
    /* pass quad to next stage */
@@ -221,504 +226,511 @@ logicop_quad(struct quad_stage *qs, struct quad_header *quad)
 static void
 blend_quad(struct quad_stage *qs, struct quad_header *quad)
 {
-   struct softpipe_context *softpipe = qs->softpipe;
    static const float zero[4] = { 0, 0, 0, 0 };
    static const float one[4] = { 1, 1, 1, 1 };
-   float source[4][QUAD_SIZE], dest[4][QUAD_SIZE];
-   struct softpipe_cached_tile *tile
-      = sp_get_cached_tile(softpipe,
-                           softpipe->cbuf_cache[softpipe->current_cbuf],
-                           quad->x0, quad->y0);
-   float (*quadColor)[4] = quad->outputs.color;
-   uint i, j;
-
-   if (softpipe->blend->logicop_enable) {
-      logicop_quad(qs, quad);
-      return;
-   }
 
-   /* get/swizzle dest colors */
-   for (j = 0; j < QUAD_SIZE; j++) {
-      int x = (quad->x0 & (TILE_SIZE-1)) + (j & 1);
-      int y = (quad->y0 & (TILE_SIZE-1)) + (j >> 1);
-      for (i = 0; i < 4; i++) {
-         dest[i][j] = tile->data.color[y][x][i];
+   struct softpipe_context *softpipe = qs->softpipe;
+   uint cbuf;
+
+   /* loop over colorbuffer outputs */
+   for (cbuf = 0; cbuf < softpipe->framebuffer.num_cbufs; cbuf++) {
+      float source[4][QUAD_SIZE], dest[4][QUAD_SIZE];
+      struct softpipe_cached_tile *tile
+         = sp_get_cached_tile(softpipe,
+                              softpipe->cbuf_cache[cbuf],
+                              quad->x0, quad->y0);
+      float (*quadColor)[4] = quad->outputs.color[cbuf];
+      uint i, j;
+
+      if (softpipe->blend->logicop_enable) {
+         logicop_quad(qs, quad);
+         return;
       }
-   }
 
-   /*
-    * Compute src/first term RGB
-    */
-   switch (softpipe->blend->rgb_src_factor) {
-   case PIPE_BLENDFACTOR_ONE:
-      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_COLOR:
-      VEC4_MUL(source[0], quadColor[0], quadColor[0]); /* R */
-      VEC4_MUL(source[1], quadColor[1], quadColor[1]); /* G */
-      VEC4_MUL(source[2], quadColor[2], quadColor[2]); /* B */
-      break;
-   case PIPE_BLENDFACTOR_SRC_ALPHA:
-      {
-         const float *alpha = quadColor[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;
-   case PIPE_BLENDFACTOR_DST_COLOR:
-      VEC4_MUL(source[0], quadColor[0], dest[0]); /* R */
-      VEC4_MUL(source[1], quadColor[1], dest[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;
-   case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
-      {
-         const float *alpha = quadColor[3];
-         float diff[4];
-         VEC4_SUB(diff, one, dest[3]);
-         VEC4_MIN(source[0], alpha, diff); /* R */
-         VEC4_MIN(source[1], alpha, diff); /* G */
-         VEC4_MIN(source[2], alpha, diff); /* B */
-      }
-      break;
-   case PIPE_BLENDFACTOR_CONST_COLOR:
-      {
-         float comp[4];
-         VEC4_SCALAR(comp, softpipe->blend_color.color[0]); /* R */
-         VEC4_MUL(source[0], quadColor[0], comp); /* R */
-         VEC4_SCALAR(comp, softpipe->blend_color.color[1]); /* G */
-         VEC4_MUL(source[1], quadColor[1], comp); /* G */
-         VEC4_SCALAR(comp, softpipe->blend_color.color[2]); /* B */
-         VEC4_MUL(source[2], quadColor[2], comp); /* B */
-      }
-      break;
-   case PIPE_BLENDFACTOR_CONST_ALPHA:
-      {
-         float alpha[4];
-         VEC4_SCALAR(alpha, softpipe->blend_color.color[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;
-   case PIPE_BLENDFACTOR_SRC1_COLOR:
-      assert(0); /* to do */
-      break;
-   case PIPE_BLENDFACTOR_SRC1_ALPHA:
-      assert(0); /* to do */
-      break;
-   case PIPE_BLENDFACTOR_ZERO:
-      VEC4_COPY(source[0], zero); /* R */
-      VEC4_COPY(source[1], zero); /* G */
-      VEC4_COPY(source[2], zero); /* B */
-      break;
-   case PIPE_BLENDFACTOR_INV_SRC_COLOR:
-      {
-         float inv_comp[4];
-         VEC4_SUB(inv_comp, one, quadColor[0]); /* R */
-         VEC4_MUL(source[0], quadColor[0], inv_comp); /* R */
-         VEC4_SUB(inv_comp, one, quadColor[1]); /* G */
-         VEC4_MUL(source[1], quadColor[1], inv_comp); /* G */
-         VEC4_SUB(inv_comp, one, quadColor[2]); /* B */
-         VEC4_MUL(source[2], quadColor[2], inv_comp); /* B */
-      }
-      break;
-   case PIPE_BLENDFACTOR_INV_SRC_ALPHA:
-      {
-         float inv_alpha[4];
-         VEC4_SUB(inv_alpha, one, quadColor[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;
-   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;
-   case PIPE_BLENDFACTOR_INV_DST_COLOR:
-      {
-         float inv_comp[4];
-         VEC4_SUB(inv_comp, one, dest[0]); /* R */
-         VEC4_MUL(source[0], quadColor[0], inv_comp); /* R */
-         VEC4_SUB(inv_comp, one, dest[1]); /* G */
-         VEC4_MUL(source[1], quadColor[1], inv_comp); /* G */
-         VEC4_SUB(inv_comp, one, dest[2]); /* B */
-         VEC4_MUL(source[2], quadColor[2], inv_comp); /* B */
-      }
-      break;
-   case PIPE_BLENDFACTOR_INV_CONST_COLOR:
-      {
-         float inv_comp[4];
-         /* R */
-         VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[0]);
-         VEC4_MUL(source[0], quadColor[0], inv_comp);
-         /* G */
-         VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[1]);
-         VEC4_MUL(source[1], quadColor[1], inv_comp);
-         /* B */
-         VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[2]);
-         VEC4_MUL(source[2], quadColor[2], inv_comp);
-      }
-      break;
-   case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
-      {
-         float inv_alpha[4];
-         VEC4_SCALAR(inv_alpha, 1.0f - softpipe->blend_color.color[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;
-   case PIPE_BLENDFACTOR_INV_SRC1_COLOR:
-      assert(0); /* to do */
-      break;
-   case PIPE_BLENDFACTOR_INV_SRC1_ALPHA:
-      assert(0); /* to do */
-      break;
-   default:
-      assert(0);
-   }
-   
-   /*
-    * Compute src/first term A
-    */
-   switch (softpipe->blend->alpha_src_factor) {
-   case PIPE_BLENDFACTOR_ONE:
-      VEC4_COPY(source[3], quadColor[3]); /* A */
-      break;
-   case PIPE_BLENDFACTOR_SRC_COLOR:
-      /* fall-through */
-   case PIPE_BLENDFACTOR_SRC_ALPHA:
-      {
-         const float *alpha = quadColor[3];
-         VEC4_MUL(source[3], quadColor[3], alpha); /* A */
-      }
-      break;
-   case PIPE_BLENDFACTOR_DST_COLOR:
-      /* fall-through */
-   case PIPE_BLENDFACTOR_DST_ALPHA:
-      VEC4_MUL(source[3], quadColor[3], dest[3]); /* A */
-      break;
-   case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
-      {
-         const float *alpha = quadColor[3];
-         float diff[4];
-         VEC4_SUB(diff, one, dest[3]);
-         VEC4_MIN(source[3], alpha, diff); /* A */
-      }
-      break;
-   case PIPE_BLENDFACTOR_CONST_COLOR:
-      /* fall-through */
-   case PIPE_BLENDFACTOR_CONST_ALPHA:
-      {
-         float comp[4];
-         VEC4_SCALAR(comp, softpipe->blend_color.color[3]); /* A */
-         VEC4_MUL(source[3], quadColor[3], comp); /* A */
+      /* get/swizzle dest colors */
+      for (j = 0; j < QUAD_SIZE; j++) {
+         int x = (quad->x0 & (TILE_SIZE-1)) + (j & 1);
+         int y = (quad->y0 & (TILE_SIZE-1)) + (j >> 1);
+         for (i = 0; i < 4; i++) {
+            dest[i][j] = tile->data.color[y][x][i];
+         }
       }
-      break;
-   case PIPE_BLENDFACTOR_ZERO:
-      VEC4_COPY(source[3], zero); /* A */
-      break;
-   case PIPE_BLENDFACTOR_INV_SRC_COLOR:
-      /* fall-through */
-   case PIPE_BLENDFACTOR_INV_SRC_ALPHA:
-      {
-         float inv_alpha[4];
-         VEC4_SUB(inv_alpha, one, quadColor[3]);
-         VEC4_MUL(source[3], quadColor[3], inv_alpha); /* A */
-      }
-      break;
-   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;
-   case PIPE_BLENDFACTOR_INV_CONST_COLOR:
-      /* fall-through */
-   case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
-      {
-         float inv_comp[4];
-         /* A */
-         VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[3]);
-         VEC4_MUL(source[3], quadColor[3], inv_comp);
-      }
-      break;
-   default:
-      assert(0);
-   }
-   
-   
-   /*
-    * Compute dest/second term RGB
-    */
-   switch (softpipe->blend->rgb_dst_factor) {
-   case PIPE_BLENDFACTOR_ONE:
-      /* dest = dest * 1   NO-OP, leave dest as-is */
-      break;
-   case PIPE_BLENDFACTOR_SRC_COLOR:
-      VEC4_MUL(dest[0], dest[0], quadColor[0]); /* R */
-      VEC4_MUL(dest[1], dest[1], quadColor[1]); /* G */
-      VEC4_MUL(dest[2], dest[2], quadColor[2]); /* B */
-      break;
-   case PIPE_BLENDFACTOR_SRC_ALPHA:
-      VEC4_MUL(dest[0], dest[0], quadColor[3]); /* R * A */
-      VEC4_MUL(dest[1], dest[1], quadColor[3]); /* G * A */
-      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 */
-      break;
-   case PIPE_BLENDFACTOR_DST_COLOR:
-      VEC4_MUL(dest[0], dest[0], dest[0]); /* R */
-      VEC4_MUL(dest[1], dest[1], dest[1]); /* G */
-      VEC4_MUL(dest[2], dest[2], dest[2]); /* B */
-      break;
-   case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
-      assert(0); /* illegal */
-      break;
-   case PIPE_BLENDFACTOR_CONST_COLOR:
-      {
-         float comp[4];
-         VEC4_SCALAR(comp, softpipe->blend_color.color[0]); /* R */
-         VEC4_MUL(dest[0], dest[0], comp); /* R */
-         VEC4_SCALAR(comp, softpipe->blend_color.color[1]); /* G */
-         VEC4_MUL(dest[1], dest[1], comp); /* G */
-         VEC4_SCALAR(comp, softpipe->blend_color.color[2]); /* B */
-         VEC4_MUL(dest[2], dest[2], comp); /* B */
-      }
-      break;
-   case PIPE_BLENDFACTOR_CONST_ALPHA:
-      {
-         float comp[4];
-         VEC4_SCALAR(comp, softpipe->blend_color.color[3]); /* A */
-         VEC4_MUL(dest[0], dest[0], comp); /* R */
-         VEC4_MUL(dest[1], dest[1], comp); /* G */
-         VEC4_MUL(dest[2], dest[2], comp); /* B */
-      }
-      break;
-   case PIPE_BLENDFACTOR_ZERO:
-      VEC4_COPY(dest[0], zero); /* R */
-      VEC4_COPY(dest[1], zero); /* G */
-      VEC4_COPY(dest[2], zero); /* B */
-      break;
-   case PIPE_BLENDFACTOR_SRC1_COLOR:
-   case PIPE_BLENDFACTOR_SRC1_ALPHA:
-      /* XXX what are these? */
-      assert(0);
-      break;
-   case PIPE_BLENDFACTOR_INV_SRC_COLOR:
-      {
-         float inv_comp[4];
-         VEC4_SUB(inv_comp, one, quadColor[0]); /* R */
-         VEC4_MUL(dest[0], inv_comp, dest[0]); /* R */
-         VEC4_SUB(inv_comp, one, quadColor[1]); /* G */
-         VEC4_MUL(dest[1], inv_comp, dest[1]); /* G */
-         VEC4_SUB(inv_comp, one, quadColor[2]); /* B */
-         VEC4_MUL(dest[2], inv_comp, dest[2]); /* B */
-      }
-      break;
-   case PIPE_BLENDFACTOR_INV_SRC_ALPHA:
-      {
-         float one_minus_alpha[QUAD_SIZE];
-         VEC4_SUB(one_minus_alpha, one, quadColor[3]);
-         VEC4_MUL(dest[0], dest[0], one_minus_alpha); /* R */
-         VEC4_MUL(dest[1], dest[1], one_minus_alpha); /* G */
-         VEC4_MUL(dest[2], dest[2], one_minus_alpha); /* B */
-      }
-      break;
-   case PIPE_BLENDFACTOR_INV_DST_ALPHA:
-      {
-         float inv_comp[4];
-         VEC4_SUB(inv_comp, one, quadColor[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 */
-      }
-      break;
-   case PIPE_BLENDFACTOR_INV_DST_COLOR:
-      {
-         float inv_comp[4];
-         VEC4_SUB(inv_comp, one, dest[0]); /* R */
-         VEC4_MUL(dest[0], dest[0], inv_comp); /* R */
-         VEC4_SUB(inv_comp, one, dest[1]); /* G */
-         VEC4_MUL(dest[1], dest[1], inv_comp); /* G */
-         VEC4_SUB(inv_comp, one, dest[2]); /* B */
-         VEC4_MUL(dest[2], dest[2], inv_comp); /* B */
-      }
-      break;
-   case PIPE_BLENDFACTOR_INV_CONST_COLOR:
-      {
-         float inv_comp[4];
-         /* R */
-         VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[0]);
-         VEC4_MUL(dest[0], dest[0], inv_comp);
-         /* G */
-         VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[1]);
-         VEC4_MUL(dest[1], dest[1], inv_comp);
-         /* B */
-         VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[2]);
-         VEC4_MUL(dest[2], dest[2], inv_comp);
+
+      /*
+       * Compute src/first term RGB
+       */
+      switch (softpipe->blend->rgb_src_factor) {
+      case PIPE_BLENDFACTOR_ONE:
+         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_COLOR:
+         VEC4_MUL(source[0], quadColor[0], quadColor[0]); /* R */
+         VEC4_MUL(source[1], quadColor[1], quadColor[1]); /* G */
+         VEC4_MUL(source[2], quadColor[2], quadColor[2]); /* B */
+         break;
+      case PIPE_BLENDFACTOR_SRC_ALPHA:
+         {
+            const float *alpha = quadColor[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;
+      case PIPE_BLENDFACTOR_DST_COLOR:
+         VEC4_MUL(source[0], quadColor[0], dest[0]); /* R */
+         VEC4_MUL(source[1], quadColor[1], dest[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;
+      case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
+         {
+            const float *alpha = quadColor[3];
+            float diff[4];
+            VEC4_SUB(diff, one, dest[3]);
+            VEC4_MIN(source[0], alpha, diff); /* R */
+            VEC4_MIN(source[1], alpha, diff); /* G */
+            VEC4_MIN(source[2], alpha, diff); /* B */
+         }
+         break;
+      case PIPE_BLENDFACTOR_CONST_COLOR:
+         {
+            float comp[4];
+            VEC4_SCALAR(comp, softpipe->blend_color.color[0]); /* R */
+            VEC4_MUL(source[0], quadColor[0], comp); /* R */
+            VEC4_SCALAR(comp, softpipe->blend_color.color[1]); /* G */
+            VEC4_MUL(source[1], quadColor[1], comp); /* G */
+            VEC4_SCALAR(comp, softpipe->blend_color.color[2]); /* B */
+            VEC4_MUL(source[2], quadColor[2], comp); /* B */
+         }
+         break;
+      case PIPE_BLENDFACTOR_CONST_ALPHA:
+         {
+            float alpha[4];
+            VEC4_SCALAR(alpha, softpipe->blend_color.color[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;
+      case PIPE_BLENDFACTOR_SRC1_COLOR:
+         assert(0); /* to do */
+         break;
+      case PIPE_BLENDFACTOR_SRC1_ALPHA:
+         assert(0); /* to do */
+         break;
+      case PIPE_BLENDFACTOR_ZERO:
+         VEC4_COPY(source[0], zero); /* R */
+         VEC4_COPY(source[1], zero); /* G */
+         VEC4_COPY(source[2], zero); /* B */
+         break;
+      case PIPE_BLENDFACTOR_INV_SRC_COLOR:
+         {
+            float inv_comp[4];
+            VEC4_SUB(inv_comp, one, quadColor[0]); /* R */
+            VEC4_MUL(source[0], quadColor[0], inv_comp); /* R */
+            VEC4_SUB(inv_comp, one, quadColor[1]); /* G */
+            VEC4_MUL(source[1], quadColor[1], inv_comp); /* G */
+            VEC4_SUB(inv_comp, one, quadColor[2]); /* B */
+            VEC4_MUL(source[2], quadColor[2], inv_comp); /* B */
+         }
+         break;
+      case PIPE_BLENDFACTOR_INV_SRC_ALPHA:
+         {
+            float inv_alpha[4];
+            VEC4_SUB(inv_alpha, one, quadColor[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;
+      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;
+      case PIPE_BLENDFACTOR_INV_DST_COLOR:
+         {
+            float inv_comp[4];
+            VEC4_SUB(inv_comp, one, dest[0]); /* R */
+            VEC4_MUL(source[0], quadColor[0], inv_comp); /* R */
+            VEC4_SUB(inv_comp, one, dest[1]); /* G */
+            VEC4_MUL(source[1], quadColor[1], inv_comp); /* G */
+            VEC4_SUB(inv_comp, one, dest[2]); /* B */
+            VEC4_MUL(source[2], quadColor[2], inv_comp); /* B */
+         }
+         break;
+      case PIPE_BLENDFACTOR_INV_CONST_COLOR:
+         {
+            float inv_comp[4];
+            /* R */
+            VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[0]);
+            VEC4_MUL(source[0], quadColor[0], inv_comp);
+            /* G */
+            VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[1]);
+            VEC4_MUL(source[1], quadColor[1], inv_comp);
+            /* B */
+            VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[2]);
+            VEC4_MUL(source[2], quadColor[2], inv_comp);
+         }
+         break;
+      case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
+         {
+            float inv_alpha[4];
+            VEC4_SCALAR(inv_alpha, 1.0f - softpipe->blend_color.color[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;
+      case PIPE_BLENDFACTOR_INV_SRC1_COLOR:
+         assert(0); /* to do */
+         break;
+      case PIPE_BLENDFACTOR_INV_SRC1_ALPHA:
+         assert(0); /* to do */
+         break;
+      default:
+         assert(0);
       }
-      break;
-   case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
-      {
-         float inv_comp[4];
-         VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[3]);
-         VEC4_MUL(dest[0], dest[0], inv_comp);
-         VEC4_MUL(dest[1], dest[1], inv_comp);
-         VEC4_MUL(dest[2], dest[2], inv_comp);
+
+      /*
+       * Compute src/first term A
+       */
+      switch (softpipe->blend->alpha_src_factor) {
+      case PIPE_BLENDFACTOR_ONE:
+         VEC4_COPY(source[3], quadColor[3]); /* A */
+         break;
+      case PIPE_BLENDFACTOR_SRC_COLOR:
+         /* fall-through */
+      case PIPE_BLENDFACTOR_SRC_ALPHA:
+         {
+            const float *alpha = quadColor[3];
+            VEC4_MUL(source[3], quadColor[3], alpha); /* A */
+         }
+         break;
+      case PIPE_BLENDFACTOR_DST_COLOR:
+         /* fall-through */
+      case PIPE_BLENDFACTOR_DST_ALPHA:
+         VEC4_MUL(source[3], quadColor[3], dest[3]); /* A */
+         break;
+      case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
+         {
+            const float *alpha = quadColor[3];
+            float diff[4];
+            VEC4_SUB(diff, one, dest[3]);
+            VEC4_MIN(source[3], alpha, diff); /* A */
+         }
+         break;
+      case PIPE_BLENDFACTOR_CONST_COLOR:
+         /* fall-through */
+      case PIPE_BLENDFACTOR_CONST_ALPHA:
+         {
+            float comp[4];
+            VEC4_SCALAR(comp, softpipe->blend_color.color[3]); /* A */
+            VEC4_MUL(source[3], quadColor[3], comp); /* A */
+         }
+         break;
+      case PIPE_BLENDFACTOR_ZERO:
+         VEC4_COPY(source[3], zero); /* A */
+         break;
+      case PIPE_BLENDFACTOR_INV_SRC_COLOR:
+         /* fall-through */
+      case PIPE_BLENDFACTOR_INV_SRC_ALPHA:
+         {
+            float inv_alpha[4];
+            VEC4_SUB(inv_alpha, one, quadColor[3]);
+            VEC4_MUL(source[3], quadColor[3], inv_alpha); /* A */
+         }
+         break;
+      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;
+      case PIPE_BLENDFACTOR_INV_CONST_COLOR:
+         /* fall-through */
+      case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
+         {
+            float inv_comp[4];
+            /* A */
+            VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[3]);
+            VEC4_MUL(source[3], quadColor[3], inv_comp);
+         }
+         break;
+      default:
+         assert(0);
       }
-      break;
-   case PIPE_BLENDFACTOR_INV_SRC1_COLOR:
-   case PIPE_BLENDFACTOR_INV_SRC1_ALPHA:
-      /* XXX what are these? */
-      assert(0);
-      break;
-   default:
-      assert(0);
-   }
-   
-   /*
-    * Compute dest/second term A
-    */
-   switch (softpipe->blend->alpha_dst_factor) {
-   case PIPE_BLENDFACTOR_ONE:
-      /* dest = dest * 1   NO-OP, leave dest as-is */
-      break;
-   case PIPE_BLENDFACTOR_SRC_COLOR:
-      /* fall-through */
-   case PIPE_BLENDFACTOR_SRC_ALPHA:
-      VEC4_MUL(dest[3], dest[3], quadColor[3]); /* A * A */
-      break;
-   case PIPE_BLENDFACTOR_DST_COLOR:
-      /* fall-through */
-   case PIPE_BLENDFACTOR_DST_ALPHA:
-      VEC4_MUL(dest[3], dest[3], dest[3]); /* A */
-      break;
-   case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
-      assert(0); /* illegal */
-      break;
-   case PIPE_BLENDFACTOR_CONST_COLOR:
-      /* fall-through */
-   case PIPE_BLENDFACTOR_CONST_ALPHA:
-      {
-         float comp[4];
-         VEC4_SCALAR(comp, softpipe->blend_color.color[3]); /* A */
-         VEC4_MUL(dest[3], dest[3], comp); /* A */
+
+
+      /*
+       * Compute dest/second term RGB
+       */
+      switch (softpipe->blend->rgb_dst_factor) {
+      case PIPE_BLENDFACTOR_ONE:
+         /* dest = dest * 1   NO-OP, leave dest as-is */
+         break;
+      case PIPE_BLENDFACTOR_SRC_COLOR:
+         VEC4_MUL(dest[0], dest[0], quadColor[0]); /* R */
+         VEC4_MUL(dest[1], dest[1], quadColor[1]); /* G */
+         VEC4_MUL(dest[2], dest[2], quadColor[2]); /* B */
+         break;
+      case PIPE_BLENDFACTOR_SRC_ALPHA:
+         VEC4_MUL(dest[0], dest[0], quadColor[3]); /* R * A */
+         VEC4_MUL(dest[1], dest[1], quadColor[3]); /* G * A */
+         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 */
+         break;
+      case PIPE_BLENDFACTOR_DST_COLOR:
+         VEC4_MUL(dest[0], dest[0], dest[0]); /* R */
+         VEC4_MUL(dest[1], dest[1], dest[1]); /* G */
+         VEC4_MUL(dest[2], dest[2], dest[2]); /* B */
+         break;
+      case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
+         assert(0); /* illegal */
+         break;
+      case PIPE_BLENDFACTOR_CONST_COLOR:
+         {
+            float comp[4];
+            VEC4_SCALAR(comp, softpipe->blend_color.color[0]); /* R */
+            VEC4_MUL(dest[0], dest[0], comp); /* R */
+            VEC4_SCALAR(comp, softpipe->blend_color.color[1]); /* G */
+            VEC4_MUL(dest[1], dest[1], comp); /* G */
+            VEC4_SCALAR(comp, softpipe->blend_color.color[2]); /* B */
+            VEC4_MUL(dest[2], dest[2], comp); /* B */
+         }
+         break;
+      case PIPE_BLENDFACTOR_CONST_ALPHA:
+         {
+            float comp[4];
+            VEC4_SCALAR(comp, softpipe->blend_color.color[3]); /* A */
+            VEC4_MUL(dest[0], dest[0], comp); /* R */
+            VEC4_MUL(dest[1], dest[1], comp); /* G */
+            VEC4_MUL(dest[2], dest[2], comp); /* B */
+         }
+         break;
+      case PIPE_BLENDFACTOR_ZERO:
+         VEC4_COPY(dest[0], zero); /* R */
+         VEC4_COPY(dest[1], zero); /* G */
+         VEC4_COPY(dest[2], zero); /* B */
+         break;
+      case PIPE_BLENDFACTOR_SRC1_COLOR:
+      case PIPE_BLENDFACTOR_SRC1_ALPHA:
+         /* XXX what are these? */
+         assert(0);
+         break;
+      case PIPE_BLENDFACTOR_INV_SRC_COLOR:
+         {
+            float inv_comp[4];
+            VEC4_SUB(inv_comp, one, quadColor[0]); /* R */
+            VEC4_MUL(dest[0], inv_comp, dest[0]); /* R */
+            VEC4_SUB(inv_comp, one, quadColor[1]); /* G */
+            VEC4_MUL(dest[1], inv_comp, dest[1]); /* G */
+            VEC4_SUB(inv_comp, one, quadColor[2]); /* B */
+            VEC4_MUL(dest[2], inv_comp, dest[2]); /* B */
+         }
+         break;
+      case PIPE_BLENDFACTOR_INV_SRC_ALPHA:
+         {
+            float one_minus_alpha[QUAD_SIZE];
+            VEC4_SUB(one_minus_alpha, one, quadColor[3]);
+            VEC4_MUL(dest[0], dest[0], one_minus_alpha); /* R */
+            VEC4_MUL(dest[1], dest[1], one_minus_alpha); /* G */
+            VEC4_MUL(dest[2], dest[2], one_minus_alpha); /* B */
+         }
+         break;
+      case PIPE_BLENDFACTOR_INV_DST_ALPHA:
+         {
+            float inv_comp[4];
+            VEC4_SUB(inv_comp, one, quadColor[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 */
+         }
+         break;
+      case PIPE_BLENDFACTOR_INV_DST_COLOR:
+         {
+            float inv_comp[4];
+            VEC4_SUB(inv_comp, one, dest[0]); /* R */
+            VEC4_MUL(dest[0], dest[0], inv_comp); /* R */
+            VEC4_SUB(inv_comp, one, dest[1]); /* G */
+            VEC4_MUL(dest[1], dest[1], inv_comp); /* G */
+            VEC4_SUB(inv_comp, one, dest[2]); /* B */
+            VEC4_MUL(dest[2], dest[2], inv_comp); /* B */
+         }
+         break;
+      case PIPE_BLENDFACTOR_INV_CONST_COLOR:
+         {
+            float inv_comp[4];
+            /* R */
+            VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[0]);
+            VEC4_MUL(dest[0], dest[0], inv_comp);
+            /* G */
+            VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[1]);
+            VEC4_MUL(dest[1], dest[1], inv_comp);
+            /* B */
+            VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[2]);
+            VEC4_MUL(dest[2], dest[2], inv_comp);
+         }
+         break;
+      case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
+         {
+            float inv_comp[4];
+            VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[3]);
+            VEC4_MUL(dest[0], dest[0], inv_comp);
+            VEC4_MUL(dest[1], dest[1], inv_comp);
+            VEC4_MUL(dest[2], dest[2], inv_comp);
+         }
+         break;
+      case PIPE_BLENDFACTOR_INV_SRC1_COLOR:
+      case PIPE_BLENDFACTOR_INV_SRC1_ALPHA:
+         /* XXX what are these? */
+         assert(0);
+         break;
+      default:
+         assert(0);
       }
-      break;
-   case PIPE_BLENDFACTOR_ZERO:
-      VEC4_COPY(dest[3], zero); /* A */
-      break;
-   case PIPE_BLENDFACTOR_INV_SRC_COLOR:
-      /* fall-through */
-   case PIPE_BLENDFACTOR_INV_SRC_ALPHA:
-      {
-         float one_minus_alpha[QUAD_SIZE];
-         VEC4_SUB(one_minus_alpha, one, quadColor[3]);
-         VEC4_MUL(dest[3], dest[3], one_minus_alpha); /* A */
+
+      /*
+       * Compute dest/second term A
+       */
+      switch (softpipe->blend->alpha_dst_factor) {
+      case PIPE_BLENDFACTOR_ONE:
+         /* dest = dest * 1   NO-OP, leave dest as-is */
+         break;
+      case PIPE_BLENDFACTOR_SRC_COLOR:
+         /* fall-through */
+      case PIPE_BLENDFACTOR_SRC_ALPHA:
+         VEC4_MUL(dest[3], dest[3], quadColor[3]); /* A * A */
+         break;
+      case PIPE_BLENDFACTOR_DST_COLOR:
+         /* fall-through */
+      case PIPE_BLENDFACTOR_DST_ALPHA:
+         VEC4_MUL(dest[3], dest[3], dest[3]); /* A */
+         break;
+      case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
+         assert(0); /* illegal */
+         break;
+      case PIPE_BLENDFACTOR_CONST_COLOR:
+         /* fall-through */
+      case PIPE_BLENDFACTOR_CONST_ALPHA:
+         {
+            float comp[4];
+            VEC4_SCALAR(comp, softpipe->blend_color.color[3]); /* A */
+            VEC4_MUL(dest[3], dest[3], comp); /* A */
+         }
+         break;
+      case PIPE_BLENDFACTOR_ZERO:
+         VEC4_COPY(dest[3], zero); /* A */
+         break;
+      case PIPE_BLENDFACTOR_INV_SRC_COLOR:
+         /* fall-through */
+      case PIPE_BLENDFACTOR_INV_SRC_ALPHA:
+         {
+            float one_minus_alpha[QUAD_SIZE];
+            VEC4_SUB(one_minus_alpha, one, quadColor[3]);
+            VEC4_MUL(dest[3], dest[3], one_minus_alpha); /* A */
+         }
+         break;
+      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;
+      case PIPE_BLENDFACTOR_INV_CONST_COLOR:
+         /* fall-through */
+      case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
+         {
+            float inv_comp[4];
+            VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[3]);
+            VEC4_MUL(dest[3], dest[3], inv_comp);
+         }
+         break;
+      default:
+         assert(0);
       }
-      break;
-   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 */
+
+      /*
+       * Combine RGB terms
+       */
+      switch (softpipe->blend->rgb_func) {
+      case PIPE_BLEND_ADD:
+         VEC4_ADD(quadColor[0], source[0], dest[0]); /* R */
+         VEC4_ADD(quadColor[1], source[1], dest[1]); /* G */
+         VEC4_ADD(quadColor[2], source[2], dest[2]); /* B */
+         break;
+      case PIPE_BLEND_SUBTRACT:
+         VEC4_SUB(quadColor[0], source[0], dest[0]); /* R */
+         VEC4_SUB(quadColor[1], source[1], dest[1]); /* G */
+         VEC4_SUB(quadColor[2], source[2], dest[2]); /* B */
+         break;
+      case PIPE_BLEND_REVERSE_SUBTRACT:
+         VEC4_SUB(quadColor[0], dest[0], source[0]); /* R */
+         VEC4_SUB(quadColor[1], dest[1], source[1]); /* G */
+         VEC4_SUB(quadColor[2], dest[2], source[2]); /* B */
+         break;
+      case PIPE_BLEND_MIN:
+         VEC4_MIN(quadColor[0], source[0], dest[0]); /* R */
+         VEC4_MIN(quadColor[1], source[1], dest[1]); /* G */
+         VEC4_MIN(quadColor[2], source[2], dest[2]); /* B */
+         break;
+      case PIPE_BLEND_MAX:
+         VEC4_MAX(quadColor[0], source[0], dest[0]); /* R */
+         VEC4_MAX(quadColor[1], source[1], dest[1]); /* G */
+         VEC4_MAX(quadColor[2], source[2], dest[2]); /* B */
+         break;
+      default:
+         assert(0);
       }
-      break;
-   case PIPE_BLENDFACTOR_INV_CONST_COLOR:
-      /* fall-through */
-   case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
-      {
-         float inv_comp[4];
-         VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[3]);
-         VEC4_MUL(dest[3], dest[3], inv_comp);
+
+      /*
+       * Combine A terms
+       */
+      switch (softpipe->blend->alpha_func) {
+      case PIPE_BLEND_ADD:
+         VEC4_ADD(quadColor[3], source[3], dest[3]); /* A */
+         break;
+      case PIPE_BLEND_SUBTRACT:
+         VEC4_SUB(quadColor[3], source[3], dest[3]); /* A */
+         break;
+      case PIPE_BLEND_REVERSE_SUBTRACT:
+         VEC4_SUB(quadColor[3], dest[3], source[3]); /* A */
+         break;
+      case PIPE_BLEND_MIN:
+         VEC4_MIN(quadColor[3], source[3], dest[3]); /* A */
+         break;
+      case PIPE_BLEND_MAX:
+         VEC4_MAX(quadColor[3], source[3], dest[3]); /* A */
+         break;
+      default:
+         assert(0);
       }
-      break;
-   default:
-      assert(0);
-   }
-   
-   /*
-    * Combine RGB terms
-    */
-   switch (softpipe->blend->rgb_func) {
-   case PIPE_BLEND_ADD:
-      VEC4_ADD(quadColor[0], source[0], dest[0]); /* R */
-      VEC4_ADD(quadColor[1], source[1], dest[1]); /* G */
-      VEC4_ADD(quadColor[2], source[2], dest[2]); /* B */
-      break;
-   case PIPE_BLEND_SUBTRACT:
-      VEC4_SUB(quadColor[0], source[0], dest[0]); /* R */
-      VEC4_SUB(quadColor[1], source[1], dest[1]); /* G */
-      VEC4_SUB(quadColor[2], source[2], dest[2]); /* B */
-      break;
-   case PIPE_BLEND_REVERSE_SUBTRACT:
-      VEC4_SUB(quadColor[0], dest[0], source[0]); /* R */
-      VEC4_SUB(quadColor[1], dest[1], source[1]); /* G */
-      VEC4_SUB(quadColor[2], dest[2], source[2]); /* B */
-      break;
-   case PIPE_BLEND_MIN:
-      VEC4_MIN(quadColor[0], source[0], dest[0]); /* R */
-      VEC4_MIN(quadColor[1], source[1], dest[1]); /* G */
-      VEC4_MIN(quadColor[2], source[2], dest[2]); /* B */
-      break;
-   case PIPE_BLEND_MAX:
-      VEC4_MAX(quadColor[0], source[0], dest[0]); /* R */
-      VEC4_MAX(quadColor[1], source[1], dest[1]); /* G */
-      VEC4_MAX(quadColor[2], source[2], dest[2]); /* B */
-      break;
-   default:
-      assert(0);
-   }
-   
-   /*
-    * Combine A terms
-    */
-   switch (softpipe->blend->alpha_func) {
-   case PIPE_BLEND_ADD:
-      VEC4_ADD(quadColor[3], source[3], dest[3]); /* A */
-      break;
-   case PIPE_BLEND_SUBTRACT:
-      VEC4_SUB(quadColor[3], source[3], dest[3]); /* A */
-      break;
-   case PIPE_BLEND_REVERSE_SUBTRACT:
-      VEC4_SUB(quadColor[3], dest[3], source[3]); /* A */
-      break;
-   case PIPE_BLEND_MIN:
-      VEC4_MIN(quadColor[3], source[3], dest[3]); /* A */
-      break;
-   case PIPE_BLEND_MAX:
-      VEC4_MAX(quadColor[3], source[3], dest[3]); /* A */
-      break;
-   default:
-      assert(0);
-   }
-   
+
+   } /* cbuf loop */
+
    /* pass blended quad to next stage */
    qs->next->run(qs->next, quad);
 }