| 0,0 → 1,1306 |
|---|
| /************************************************************************** |
| * |
| * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. |
| * All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sub license, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the |
| * next paragraph) shall be included in all copies or substantial portions |
| * of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
| * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR |
| * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| * |
| **************************************************************************/ |
| |
| /** |
| * quad blending |
| * \author Brian Paul |
| */ |
| |
| #include "pipe/p_defines.h" |
| #include "util/u_math.h" |
| #include "util/u_memory.h" |
| #include "util/u_format.h" |
| #include "util/u_dual_blend.h" |
| #include "sp_context.h" |
| #include "sp_state.h" |
| #include "sp_quad.h" |
| #include "sp_tile_cache.h" |
| #include "sp_quad_pipe.h" |
| |
| |
| enum format |
| { |
| RGBA, |
| RGB, |
| LUMINANCE, |
| LUMINANCE_ALPHA, |
| INTENSITY |
| }; |
| |
| |
| /** Subclass of quad_stage */ |
| struct blend_quad_stage |
| { |
| struct quad_stage base; |
| boolean clamp[PIPE_MAX_COLOR_BUFS]; /**< clamp colors to [0,1]? */ |
| enum format base_format[PIPE_MAX_COLOR_BUFS]; |
| enum util_format_type format_type[PIPE_MAX_COLOR_BUFS]; |
| }; |
| |
| |
| /** cast wrapper */ |
| static INLINE struct blend_quad_stage * |
| blend_quad_stage(struct quad_stage *stage) |
| { |
| return (struct blend_quad_stage *) stage; |
| } |
| |
| |
| #define VEC4_COPY(DST, SRC) \ |
| do { \ |
| DST[0] = SRC[0]; \ |
| DST[1] = SRC[1]; \ |
| DST[2] = SRC[2]; \ |
| DST[3] = SRC[3]; \ |
| } while(0) |
| |
| #define VEC4_SCALAR(DST, SRC) \ |
| do { \ |
| DST[0] = SRC; \ |
| DST[1] = SRC; \ |
| DST[2] = SRC; \ |
| DST[3] = SRC; \ |
| } while(0) |
| |
| #define VEC4_ADD(R, A, B) \ |
| do { \ |
| R[0] = A[0] + B[0]; \ |
| R[1] = A[1] + B[1]; \ |
| R[2] = A[2] + B[2]; \ |
| R[3] = A[3] + B[3]; \ |
| } while (0) |
| |
| #define VEC4_SUB(R, A, B) \ |
| do { \ |
| R[0] = A[0] - B[0]; \ |
| R[1] = A[1] - B[1]; \ |
| R[2] = A[2] - B[2]; \ |
| R[3] = A[3] - B[3]; \ |
| } while (0) |
| |
| /** Add and limit result to ceiling of 1.0 */ |
| #define VEC4_ADD_SAT(R, A, B) \ |
| do { \ |
| R[0] = A[0] + B[0]; if (R[0] > 1.0f) R[0] = 1.0f; \ |
| R[1] = A[1] + B[1]; if (R[1] > 1.0f) R[1] = 1.0f; \ |
| R[2] = A[2] + B[2]; if (R[2] > 1.0f) R[2] = 1.0f; \ |
| R[3] = A[3] + B[3]; if (R[3] > 1.0f) R[3] = 1.0f; \ |
| } while (0) |
| |
| /** Subtract and limit result to floor of 0.0 */ |
| #define VEC4_SUB_SAT(R, A, B) \ |
| do { \ |
| R[0] = A[0] - B[0]; if (R[0] < 0.0f) R[0] = 0.0f; \ |
| R[1] = A[1] - B[1]; if (R[1] < 0.0f) R[1] = 0.0f; \ |
| R[2] = A[2] - B[2]; if (R[2] < 0.0f) R[2] = 0.0f; \ |
| R[3] = A[3] - B[3]; if (R[3] < 0.0f) R[3] = 0.0f; \ |
| } while (0) |
| |
| #define VEC4_MUL(R, A, B) \ |
| do { \ |
| R[0] = A[0] * B[0]; \ |
| R[1] = A[1] * B[1]; \ |
| R[2] = A[2] * B[2]; \ |
| R[3] = A[3] * B[3]; \ |
| } while (0) |
| |
| #define VEC4_MIN(R, A, B) \ |
| do { \ |
| R[0] = (A[0] < B[0]) ? A[0] : B[0]; \ |
| R[1] = (A[1] < B[1]) ? A[1] : B[1]; \ |
| R[2] = (A[2] < B[2]) ? A[2] : B[2]; \ |
| R[3] = (A[3] < B[3]) ? A[3] : B[3]; \ |
| } while (0) |
| |
| #define VEC4_MAX(R, A, B) \ |
| do { \ |
| R[0] = (A[0] > B[0]) ? A[0] : B[0]; \ |
| R[1] = (A[1] > B[1]) ? A[1] : B[1]; \ |
| R[2] = (A[2] > B[2]) ? A[2] : B[2]; \ |
| R[3] = (A[3] > B[3]) ? A[3] : B[3]; \ |
| } while (0) |
| |
| |
| |
| static void |
| logicop_quad(struct quad_stage *qs, |
| float (*quadColor)[4], |
| float (*dest)[4]) |
| { |
| struct softpipe_context *softpipe = qs->softpipe; |
| ubyte src[4][4], dst[4][4], res[4][4]; |
| uint *src4 = (uint *) src; |
| uint *dst4 = (uint *) dst; |
| uint *res4 = (uint *) res; |
| uint j; |
| |
| |
| /* convert to ubyte */ |
| for (j = 0; j < 4; j++) { /* loop over R,G,B,A channels */ |
| dst[j][0] = float_to_ubyte(dest[j][0]); /* P0 */ |
| dst[j][1] = float_to_ubyte(dest[j][1]); /* P1 */ |
| dst[j][2] = float_to_ubyte(dest[j][2]); /* P2 */ |
| dst[j][3] = float_to_ubyte(dest[j][3]); /* P3 */ |
| |
| src[j][0] = float_to_ubyte(quadColor[j][0]); /* P0 */ |
| src[j][1] = float_to_ubyte(quadColor[j][1]); /* P1 */ |
| src[j][2] = float_to_ubyte(quadColor[j][2]); /* P2 */ |
| src[j][3] = float_to_ubyte(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 && "invalid logicop mode"); |
| } |
| |
| 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]); |
| } |
| } |
| |
| |
| |
| /** |
| * Do blending for a 2x2 quad for one color buffer. |
| * \param quadColor the incoming quad colors |
| * \param dest the destination/framebuffer quad colors |
| * \param const_blend_color the constant blend color |
| * \param blend_index which set of blending terms to use |
| */ |
| static void |
| blend_quad(struct quad_stage *qs, |
| float (*quadColor)[4], |
| float (*quadColor2)[4], |
| float (*dest)[4], |
| const float const_blend_color[4], |
| unsigned blend_index) |
| { |
| 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][TGSI_QUAD_SIZE] = { { 0 } }; |
| float blend_dest[4][TGSI_QUAD_SIZE]; |
| |
| /* |
| * Compute src/first term RGB |
| */ |
| 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_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], 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; |
| case PIPE_BLENDFACTOR_CONST_COLOR: |
| { |
| float comp[4]; |
| VEC4_SCALAR(comp, const_blend_color[0]); /* R */ |
| VEC4_MUL(source[0], quadColor[0], comp); /* R */ |
| VEC4_SCALAR(comp, const_blend_color[1]); /* G */ |
| VEC4_MUL(source[1], quadColor[1], comp); /* G */ |
| VEC4_SCALAR(comp, const_blend_color[2]); /* B */ |
| VEC4_MUL(source[2], quadColor[2], comp); /* B */ |
| } |
| break; |
| case PIPE_BLENDFACTOR_CONST_ALPHA: |
| { |
| float alpha[4]; |
| VEC4_SCALAR(alpha, const_blend_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: |
| VEC4_MUL(source[0], quadColor[0], quadColor2[0]); /* R */ |
| VEC4_MUL(source[1], quadColor[1], quadColor2[1]); /* G */ |
| VEC4_MUL(source[2], quadColor[2], quadColor2[2]); /* B */ |
| break; |
| case PIPE_BLENDFACTOR_SRC1_ALPHA: |
| { |
| const float *alpha = quadColor2[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_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 - const_blend_color[0]); |
| VEC4_MUL(source[0], quadColor[0], inv_comp); |
| /* G */ |
| VEC4_SCALAR(inv_comp, 1.0f - const_blend_color[1]); |
| VEC4_MUL(source[1], quadColor[1], inv_comp); |
| /* B */ |
| VEC4_SCALAR(inv_comp, 1.0f - const_blend_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 - const_blend_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: |
| { |
| float inv_comp[4]; |
| VEC4_SUB(inv_comp, one, quadColor2[0]); /* R */ |
| VEC4_MUL(source[0], quadColor[0], inv_comp); /* R */ |
| VEC4_SUB(inv_comp, one, quadColor2[1]); /* G */ |
| VEC4_MUL(source[1], quadColor[1], inv_comp); /* G */ |
| VEC4_SUB(inv_comp, one, quadColor2[2]); /* B */ |
| VEC4_MUL(source[2], quadColor[2], inv_comp); /* B */ |
| } |
| break; |
| case PIPE_BLENDFACTOR_INV_SRC1_ALPHA: |
| { |
| float inv_alpha[4]; |
| VEC4_SUB(inv_alpha, one, quadColor2[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; |
| default: |
| assert(0 && "invalid rgb src factor"); |
| } |
| |
| /* |
| * Compute src/first term A |
| */ |
| switch (softpipe->blend->rt[blend_index].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: |
| /* multiply alpha by 1.0 */ |
| VEC4_COPY(source[3], quadColor[3]); /* A */ |
| break; |
| case PIPE_BLENDFACTOR_CONST_COLOR: |
| /* fall-through */ |
| case PIPE_BLENDFACTOR_CONST_ALPHA: |
| { |
| float comp[4]; |
| VEC4_SCALAR(comp, const_blend_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 - const_blend_color[3]); |
| VEC4_MUL(source[3], quadColor[3], inv_comp); |
| } |
| break; |
| case PIPE_BLENDFACTOR_SRC1_COLOR: |
| /* fall-through */ |
| case PIPE_BLENDFACTOR_SRC1_ALPHA: |
| { |
| const float *alpha = quadColor2[3]; |
| VEC4_MUL(source[3], quadColor[3], alpha); /* A */ |
| } |
| break; |
| case PIPE_BLENDFACTOR_INV_SRC1_COLOR: |
| /* fall-through */ |
| case PIPE_BLENDFACTOR_INV_SRC1_ALPHA: |
| { |
| float inv_alpha[4]; |
| VEC4_SUB(inv_alpha, one, quadColor2[3]); |
| VEC4_MUL(source[3], quadColor[3], inv_alpha); /* A */ |
| } |
| break; |
| default: |
| assert(0 && "invalid alpha src factor"); |
| } |
| |
| /* Save the original dest for use in masking */ |
| VEC4_COPY(blend_dest[0], dest[0]); |
| VEC4_COPY(blend_dest[1], dest[1]); |
| VEC4_COPY(blend_dest[2], dest[2]); |
| VEC4_COPY(blend_dest[3], dest[3]); |
| |
| |
| /* |
| * Compute blend_dest/second term RGB |
| */ |
| switch (softpipe->blend->rt[blend_index].rgb_dst_factor) { |
| case PIPE_BLENDFACTOR_ONE: |
| /* blend_dest = blend_dest * 1 NO-OP, leave blend_dest as-is */ |
| break; |
| case PIPE_BLENDFACTOR_SRC_COLOR: |
| VEC4_MUL(blend_dest[0], blend_dest[0], quadColor[0]); /* R */ |
| VEC4_MUL(blend_dest[1], blend_dest[1], quadColor[1]); /* G */ |
| VEC4_MUL(blend_dest[2], blend_dest[2], quadColor[2]); /* B */ |
| break; |
| case PIPE_BLENDFACTOR_SRC_ALPHA: |
| VEC4_MUL(blend_dest[0], blend_dest[0], quadColor[3]); /* R * A */ |
| VEC4_MUL(blend_dest[1], blend_dest[1], quadColor[3]); /* G * A */ |
| VEC4_MUL(blend_dest[2], blend_dest[2], quadColor[3]); /* B * A */ |
| break; |
| case PIPE_BLENDFACTOR_DST_ALPHA: |
| VEC4_MUL(blend_dest[0], blend_dest[0], blend_dest[3]); /* R * A */ |
| VEC4_MUL(blend_dest[1], blend_dest[1], blend_dest[3]); /* G * A */ |
| VEC4_MUL(blend_dest[2], blend_dest[2], blend_dest[3]); /* B * A */ |
| break; |
| case PIPE_BLENDFACTOR_DST_COLOR: |
| VEC4_MUL(blend_dest[0], blend_dest[0], blend_dest[0]); /* R */ |
| VEC4_MUL(blend_dest[1], blend_dest[1], blend_dest[1]); /* G */ |
| VEC4_MUL(blend_dest[2], blend_dest[2], blend_dest[2]); /* B */ |
| break; |
| case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE: |
| { |
| const float *alpha = quadColor[3]; |
| float diff[4], temp[4]; |
| VEC4_SUB(diff, one, blend_dest[3]); |
| VEC4_MIN(temp, alpha, diff); |
| VEC4_MUL(blend_dest[0], blend_dest[0], temp); /* R */ |
| VEC4_MUL(blend_dest[1], blend_dest[1], temp); /* G */ |
| VEC4_MUL(blend_dest[2], blend_dest[2], temp); /* B */ |
| } |
| break; |
| case PIPE_BLENDFACTOR_CONST_COLOR: |
| { |
| float comp[4]; |
| VEC4_SCALAR(comp, const_blend_color[0]); /* R */ |
| VEC4_MUL(blend_dest[0], blend_dest[0], comp); /* R */ |
| VEC4_SCALAR(comp, const_blend_color[1]); /* G */ |
| VEC4_MUL(blend_dest[1], blend_dest[1], comp); /* G */ |
| VEC4_SCALAR(comp, const_blend_color[2]); /* B */ |
| VEC4_MUL(blend_dest[2], blend_dest[2], comp); /* B */ |
| } |
| break; |
| case PIPE_BLENDFACTOR_CONST_ALPHA: |
| { |
| float comp[4]; |
| VEC4_SCALAR(comp, const_blend_color[3]); /* A */ |
| VEC4_MUL(blend_dest[0], blend_dest[0], comp); /* R */ |
| VEC4_MUL(blend_dest[1], blend_dest[1], comp); /* G */ |
| VEC4_MUL(blend_dest[2], blend_dest[2], comp); /* B */ |
| } |
| break; |
| case PIPE_BLENDFACTOR_ZERO: |
| VEC4_COPY(blend_dest[0], zero); /* R */ |
| VEC4_COPY(blend_dest[1], zero); /* G */ |
| VEC4_COPY(blend_dest[2], zero); /* B */ |
| break; |
| case PIPE_BLENDFACTOR_SRC1_COLOR: |
| VEC4_MUL(blend_dest[0], blend_dest[0], quadColor2[0]); /* R */ |
| VEC4_MUL(blend_dest[1], blend_dest[1], quadColor2[1]); /* G */ |
| VEC4_MUL(blend_dest[2], blend_dest[2], quadColor2[2]); /* B */ |
| break; |
| case PIPE_BLENDFACTOR_SRC1_ALPHA: |
| VEC4_MUL(blend_dest[0], blend_dest[0], quadColor2[3]); /* R * A */ |
| VEC4_MUL(blend_dest[1], blend_dest[1], quadColor2[3]); /* G * A */ |
| VEC4_MUL(blend_dest[2], blend_dest[2], quadColor2[3]); /* B * A */ |
| break; |
| case PIPE_BLENDFACTOR_INV_SRC_COLOR: |
| { |
| float inv_comp[4]; |
| VEC4_SUB(inv_comp, one, quadColor[0]); /* R */ |
| VEC4_MUL(blend_dest[0], inv_comp, blend_dest[0]); /* R */ |
| VEC4_SUB(inv_comp, one, quadColor[1]); /* G */ |
| VEC4_MUL(blend_dest[1], inv_comp, blend_dest[1]); /* G */ |
| VEC4_SUB(inv_comp, one, quadColor[2]); /* B */ |
| VEC4_MUL(blend_dest[2], inv_comp, blend_dest[2]); /* B */ |
| } |
| break; |
| case PIPE_BLENDFACTOR_INV_SRC_ALPHA: |
| { |
| float one_minus_alpha[TGSI_QUAD_SIZE]; |
| VEC4_SUB(one_minus_alpha, one, quadColor[3]); |
| VEC4_MUL(blend_dest[0], blend_dest[0], one_minus_alpha); /* R */ |
| VEC4_MUL(blend_dest[1], blend_dest[1], one_minus_alpha); /* G */ |
| VEC4_MUL(blend_dest[2], blend_dest[2], one_minus_alpha); /* B */ |
| } |
| break; |
| case PIPE_BLENDFACTOR_INV_DST_ALPHA: |
| { |
| float inv_comp[4]; |
| VEC4_SUB(inv_comp, one, blend_dest[3]); /* A */ |
| VEC4_MUL(blend_dest[0], inv_comp, blend_dest[0]); /* R */ |
| VEC4_MUL(blend_dest[1], inv_comp, blend_dest[1]); /* G */ |
| VEC4_MUL(blend_dest[2], inv_comp, blend_dest[2]); /* B */ |
| } |
| break; |
| case PIPE_BLENDFACTOR_INV_DST_COLOR: |
| { |
| float inv_comp[4]; |
| VEC4_SUB(inv_comp, one, blend_dest[0]); /* R */ |
| VEC4_MUL(blend_dest[0], blend_dest[0], inv_comp); /* R */ |
| VEC4_SUB(inv_comp, one, blend_dest[1]); /* G */ |
| VEC4_MUL(blend_dest[1], blend_dest[1], inv_comp); /* G */ |
| VEC4_SUB(inv_comp, one, blend_dest[2]); /* B */ |
| VEC4_MUL(blend_dest[2], blend_dest[2], inv_comp); /* B */ |
| } |
| break; |
| case PIPE_BLENDFACTOR_INV_CONST_COLOR: |
| { |
| float inv_comp[4]; |
| /* R */ |
| VEC4_SCALAR(inv_comp, 1.0f - const_blend_color[0]); |
| VEC4_MUL(blend_dest[0], blend_dest[0], inv_comp); |
| /* G */ |
| VEC4_SCALAR(inv_comp, 1.0f - const_blend_color[1]); |
| VEC4_MUL(blend_dest[1], blend_dest[1], inv_comp); |
| /* B */ |
| VEC4_SCALAR(inv_comp, 1.0f - const_blend_color[2]); |
| VEC4_MUL(blend_dest[2], blend_dest[2], inv_comp); |
| } |
| break; |
| case PIPE_BLENDFACTOR_INV_CONST_ALPHA: |
| { |
| float inv_comp[4]; |
| VEC4_SCALAR(inv_comp, 1.0f - const_blend_color[3]); |
| VEC4_MUL(blend_dest[0], blend_dest[0], inv_comp); |
| VEC4_MUL(blend_dest[1], blend_dest[1], inv_comp); |
| VEC4_MUL(blend_dest[2], blend_dest[2], inv_comp); |
| } |
| break; |
| case PIPE_BLENDFACTOR_INV_SRC1_COLOR: |
| { |
| float inv_comp[4]; |
| VEC4_SUB(inv_comp, one, quadColor2[0]); /* R */ |
| VEC4_MUL(blend_dest[0], inv_comp, blend_dest[0]); /* R */ |
| VEC4_SUB(inv_comp, one, quadColor2[1]); /* G */ |
| VEC4_MUL(blend_dest[1], inv_comp, blend_dest[1]); /* G */ |
| VEC4_SUB(inv_comp, one, quadColor2[2]); /* B */ |
| VEC4_MUL(blend_dest[2], inv_comp, blend_dest[2]); /* B */ |
| } |
| break; |
| case PIPE_BLENDFACTOR_INV_SRC1_ALPHA: |
| { |
| float one_minus_alpha[TGSI_QUAD_SIZE]; |
| VEC4_SUB(one_minus_alpha, one, quadColor2[3]); |
| VEC4_MUL(blend_dest[0], blend_dest[0], one_minus_alpha); /* R */ |
| VEC4_MUL(blend_dest[1], blend_dest[1], one_minus_alpha); /* G */ |
| VEC4_MUL(blend_dest[2], blend_dest[2], one_minus_alpha); /* B */ |
| } |
| break; |
| default: |
| assert(0 && "invalid rgb dst factor"); |
| } |
| |
| /* |
| * Compute blend_dest/second term A |
| */ |
| switch (softpipe->blend->rt[blend_index].alpha_dst_factor) { |
| case PIPE_BLENDFACTOR_ONE: |
| /* blend_dest = blend_dest * 1 NO-OP, leave blend_dest as-is */ |
| break; |
| case PIPE_BLENDFACTOR_SRC_COLOR: |
| /* fall-through */ |
| case PIPE_BLENDFACTOR_SRC_ALPHA: |
| VEC4_MUL(blend_dest[3], blend_dest[3], quadColor[3]); /* A * A */ |
| break; |
| case PIPE_BLENDFACTOR_DST_COLOR: |
| /* fall-through */ |
| case PIPE_BLENDFACTOR_DST_ALPHA: |
| VEC4_MUL(blend_dest[3], blend_dest[3], blend_dest[3]); /* A */ |
| break; |
| case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE: |
| /* blend_dest = blend_dest * 1 NO-OP, leave blend_dest as-is */ |
| break; |
| case PIPE_BLENDFACTOR_CONST_COLOR: |
| /* fall-through */ |
| case PIPE_BLENDFACTOR_CONST_ALPHA: |
| { |
| float comp[4]; |
| VEC4_SCALAR(comp, const_blend_color[3]); /* A */ |
| VEC4_MUL(blend_dest[3], blend_dest[3], comp); /* A */ |
| } |
| break; |
| case PIPE_BLENDFACTOR_ZERO: |
| VEC4_COPY(blend_dest[3], zero); /* A */ |
| break; |
| case PIPE_BLENDFACTOR_INV_SRC_COLOR: |
| /* fall-through */ |
| case PIPE_BLENDFACTOR_INV_SRC_ALPHA: |
| { |
| float one_minus_alpha[TGSI_QUAD_SIZE]; |
| VEC4_SUB(one_minus_alpha, one, quadColor[3]); |
| VEC4_MUL(blend_dest[3], blend_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, blend_dest[3]); /* A */ |
| VEC4_MUL(blend_dest[3], inv_comp, blend_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 - const_blend_color[3]); |
| VEC4_MUL(blend_dest[3], blend_dest[3], inv_comp); |
| } |
| break; |
| case PIPE_BLENDFACTOR_SRC1_COLOR: |
| /* fall-through */ |
| case PIPE_BLENDFACTOR_SRC1_ALPHA: |
| VEC4_MUL(blend_dest[3], blend_dest[3], quadColor2[3]); /* A * A */ |
| break; |
| case PIPE_BLENDFACTOR_INV_SRC1_COLOR: |
| /* fall-through */ |
| case PIPE_BLENDFACTOR_INV_SRC1_ALPHA: |
| { |
| float one_minus_alpha[TGSI_QUAD_SIZE]; |
| VEC4_SUB(one_minus_alpha, one, quadColor2[3]); |
| VEC4_MUL(blend_dest[3], blend_dest[3], one_minus_alpha); /* A */ |
| } |
| break; |
| default: |
| assert(0 && "invalid alpha dst factor"); |
| } |
| |
| /* |
| * Combine RGB terms |
| */ |
| switch (softpipe->blend->rt[blend_index].rgb_func) { |
| case PIPE_BLEND_ADD: |
| VEC4_ADD(quadColor[0], source[0], blend_dest[0]); /* R */ |
| VEC4_ADD(quadColor[1], source[1], blend_dest[1]); /* G */ |
| VEC4_ADD(quadColor[2], source[2], blend_dest[2]); /* B */ |
| break; |
| case PIPE_BLEND_SUBTRACT: |
| VEC4_SUB(quadColor[0], source[0], blend_dest[0]); /* R */ |
| VEC4_SUB(quadColor[1], source[1], blend_dest[1]); /* G */ |
| VEC4_SUB(quadColor[2], source[2], blend_dest[2]); /* B */ |
| break; |
| case PIPE_BLEND_REVERSE_SUBTRACT: |
| VEC4_SUB(quadColor[0], blend_dest[0], source[0]); /* R */ |
| VEC4_SUB(quadColor[1], blend_dest[1], source[1]); /* G */ |
| VEC4_SUB(quadColor[2], blend_dest[2], source[2]); /* B */ |
| break; |
| case PIPE_BLEND_MIN: |
| VEC4_MIN(quadColor[0], source[0], blend_dest[0]); /* R */ |
| VEC4_MIN(quadColor[1], source[1], blend_dest[1]); /* G */ |
| VEC4_MIN(quadColor[2], source[2], blend_dest[2]); /* B */ |
| break; |
| case PIPE_BLEND_MAX: |
| VEC4_MAX(quadColor[0], source[0], blend_dest[0]); /* R */ |
| VEC4_MAX(quadColor[1], source[1], blend_dest[1]); /* G */ |
| VEC4_MAX(quadColor[2], source[2], blend_dest[2]); /* B */ |
| break; |
| default: |
| assert(0 && "invalid rgb blend func"); |
| } |
| |
| /* |
| * Combine A terms |
| */ |
| switch (softpipe->blend->rt[blend_index].alpha_func) { |
| case PIPE_BLEND_ADD: |
| VEC4_ADD(quadColor[3], source[3], blend_dest[3]); /* A */ |
| break; |
| case PIPE_BLEND_SUBTRACT: |
| VEC4_SUB(quadColor[3], source[3], blend_dest[3]); /* A */ |
| break; |
| case PIPE_BLEND_REVERSE_SUBTRACT: |
| VEC4_SUB(quadColor[3], blend_dest[3], source[3]); /* A */ |
| break; |
| case PIPE_BLEND_MIN: |
| VEC4_MIN(quadColor[3], source[3], blend_dest[3]); /* A */ |
| break; |
| case PIPE_BLEND_MAX: |
| VEC4_MAX(quadColor[3], source[3], blend_dest[3]); /* A */ |
| break; |
| default: |
| assert(0 && "invalid alpha blend func"); |
| } |
| } |
| |
| static void |
| colormask_quad(unsigned colormask, |
| float (*quadColor)[4], |
| float (*dest)[4]) |
| { |
| /* R */ |
| if (!(colormask & PIPE_MASK_R)) |
| COPY_4V(quadColor[0], dest[0]); |
| |
| /* G */ |
| if (!(colormask & PIPE_MASK_G)) |
| COPY_4V(quadColor[1], dest[1]); |
| |
| /* B */ |
| if (!(colormask & PIPE_MASK_B)) |
| COPY_4V(quadColor[2], dest[2]); |
| |
| /* A */ |
| if (!(colormask & PIPE_MASK_A)) |
| COPY_4V(quadColor[3], dest[3]); |
| } |
| |
| |
| /** |
| * Clamp all colors in a quad to [0, 1] |
| */ |
| static void |
| clamp_colors(float (*quadColor)[4]) |
| { |
| unsigned i, j; |
| |
| for (j = 0; j < TGSI_QUAD_SIZE; j++) { |
| for (i = 0; i < 4; i++) { |
| quadColor[i][j] = CLAMP(quadColor[i][j], 0.0F, 1.0F); |
| } |
| } |
| } |
| |
| |
| /** |
| * If we're drawing to a luminance, luminance/alpha or intensity surface |
| * we have to adjust (rebase) the fragment/quad colors before writing them |
| * to the tile cache. The tile cache always stores RGBA colors but if |
| * we're caching a L/A surface (for example) we need to be sure that R=G=B |
| * so that subsequent reads from the surface cache appear to return L/A |
| * values. |
| * The piglit fbo-blending-formats test will exercise this. |
| */ |
| static void |
| rebase_colors(enum format base_format, float (*quadColor)[4]) |
| { |
| unsigned i; |
| |
| switch (base_format) { |
| case RGB: |
| for (i = 0; i < 4; i++) { |
| /* A = 1 */ |
| quadColor[3][i] = 1.0F; |
| } |
| break; |
| case LUMINANCE: |
| for (i = 0; i < 4; i++) { |
| /* B = G = R */ |
| quadColor[2][i] = quadColor[1][i] = quadColor[0][i]; |
| /* A = 1 */ |
| quadColor[3][i] = 1.0F; |
| } |
| break; |
| case LUMINANCE_ALPHA: |
| for (i = 0; i < 4; i++) { |
| /* B = G = R */ |
| quadColor[2][i] = quadColor[1][i] = quadColor[0][i]; |
| } |
| break; |
| case INTENSITY: |
| for (i = 0; i < 4; i++) { |
| /* A = B = G = R */ |
| quadColor[3][i] = quadColor[2][i] = quadColor[1][i] = quadColor[0][i]; |
| } |
| break; |
| default: |
| ; /* nothing */ |
| } |
| } |
| |
| static void |
| blend_fallback(struct quad_stage *qs, |
| struct quad_header *quads[], |
| unsigned nr) |
| { |
| const struct blend_quad_stage *bqs = blend_quad_stage(qs); |
| struct softpipe_context *softpipe = qs->softpipe; |
| const struct pipe_blend_state *blend = softpipe->blend; |
| unsigned cbuf; |
| boolean write_all; |
| |
| write_all = softpipe->fs_variant->info.color0_writes_all_cbufs; |
| |
| 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][TGSI_QUAD_SIZE]; |
| struct softpipe_cached_tile *tile |
| = sp_get_cached_tile(softpipe->cbuf_cache[cbuf], |
| quads[0]->input.x0, |
| quads[0]->input.y0); |
| const boolean clamp = bqs->clamp[cbuf]; |
| const float *blend_color; |
| const boolean dual_source_blend = util_blend_state_is_dual(blend, cbuf); |
| uint q, i, j; |
| |
| if (clamp) |
| blend_color = softpipe->blend_color_clamped.color; |
| else |
| blend_color = softpipe->blend_color.color; |
| |
| for (q = 0; q < nr; q++) { |
| struct quad_header *quad = quads[q]; |
| float (*quadColor)[4]; |
| float (*quadColor2)[4] = NULL; |
| float temp_quad_color[TGSI_QUAD_SIZE][4]; |
| const int itx = (quad->input.x0 & (TILE_SIZE-1)); |
| const int ity = (quad->input.y0 & (TILE_SIZE-1)); |
| |
| if (write_all) { |
| for (j = 0; j < TGSI_QUAD_SIZE; j++) { |
| for (i = 0; i < 4; i++) { |
| temp_quad_color[i][j] = quad->output.color[0][i][j]; |
| } |
| } |
| quadColor = temp_quad_color; |
| } else { |
| quadColor = quad->output.color[cbuf]; |
| if (dual_source_blend) |
| quadColor2 = quad->output.color[cbuf + 1]; |
| } |
| |
| /* If fixed-point dest color buffer, need to clamp the incoming |
| * fragment colors now. |
| */ |
| if (clamp || softpipe->rasterizer->clamp_fragment_color) { |
| clamp_colors(quadColor); |
| } |
| |
| /* get/swizzle dest colors |
| */ |
| for (j = 0; j < TGSI_QUAD_SIZE; j++) { |
| int x = itx + (j & 1); |
| int y = ity + (j >> 1); |
| for (i = 0; i < 4; i++) { |
| dest[i][j] = tile->data.color[y][x][i]; |
| } |
| } |
| |
| |
| if (blend->logicop_enable) { |
| if (bqs->format_type[cbuf] != UTIL_FORMAT_TYPE_FLOAT) { |
| logicop_quad( qs, quadColor, dest ); |
| } |
| } |
| else if (blend->rt[blend_buf].blend_enable) { |
| blend_quad(qs, quadColor, quadColor2, dest, blend_color, blend_buf); |
| |
| /* If fixed-point dest color buffer, need to clamp the outgoing |
| * fragment colors now. |
| */ |
| if (clamp) { |
| clamp_colors(quadColor); |
| } |
| } |
| |
| rebase_colors(bqs->base_format[cbuf], quadColor); |
| |
| if (blend->rt[blend_buf].colormask != 0xf) |
| colormask_quad( blend->rt[cbuf].colormask, quadColor, dest); |
| |
| /* Output color values |
| */ |
| for (j = 0; j < TGSI_QUAD_SIZE; j++) { |
| if (quad->inout.mask & (1 << j)) { |
| int x = itx + (j & 1); |
| int y = ity + (j >> 1); |
| for (i = 0; i < 4; i++) { /* loop over color chans */ |
| tile->data.color[y][x][i] = quadColor[i][j]; |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| |
| static void |
| blend_single_add_src_alpha_inv_src_alpha(struct quad_stage *qs, |
| struct quad_header *quads[], |
| unsigned nr) |
| { |
| const struct blend_quad_stage *bqs = blend_quad_stage(qs); |
| static const float one[4] = { 1, 1, 1, 1 }; |
| float one_minus_alpha[TGSI_QUAD_SIZE]; |
| float dest[4][TGSI_QUAD_SIZE]; |
| float source[4][TGSI_QUAD_SIZE]; |
| uint i, j, q; |
| |
| struct softpipe_cached_tile *tile |
| = sp_get_cached_tile(qs->softpipe->cbuf_cache[0], |
| quads[0]->input.x0, |
| quads[0]->input.y0); |
| |
| for (q = 0; q < nr; q++) { |
| struct quad_header *quad = quads[q]; |
| float (*quadColor)[4] = quad->output.color[0]; |
| const float *alpha = quadColor[3]; |
| const int itx = (quad->input.x0 & (TILE_SIZE-1)); |
| const int ity = (quad->input.y0 & (TILE_SIZE-1)); |
| |
| /* get/swizzle dest colors */ |
| for (j = 0; j < TGSI_QUAD_SIZE; j++) { |
| int x = itx + (j & 1); |
| int y = ity + (j >> 1); |
| for (i = 0; i < 4; i++) { |
| dest[i][j] = tile->data.color[y][x][i]; |
| } |
| } |
| |
| /* If fixed-point dest color buffer, need to clamp the incoming |
| * fragment colors now. |
| */ |
| if (bqs->clamp[0] || qs->softpipe->rasterizer->clamp_fragment_color) { |
| clamp_colors(quadColor); |
| } |
| |
| VEC4_MUL(source[0], quadColor[0], alpha); /* R */ |
| VEC4_MUL(source[1], quadColor[1], alpha); /* G */ |
| VEC4_MUL(source[2], quadColor[2], alpha); /* B */ |
| VEC4_MUL(source[3], quadColor[3], alpha); /* A */ |
| |
| VEC4_SUB(one_minus_alpha, one, alpha); |
| 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 */ |
| VEC4_MUL(dest[3], dest[3], one_minus_alpha); /* A */ |
| |
| 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 */ |
| VEC4_ADD(quadColor[3], source[3], dest[3]); /* A */ |
| |
| /* If fixed-point dest color buffer, need to clamp the outgoing |
| * fragment colors now. |
| */ |
| if (bqs->clamp[0]) { |
| clamp_colors(quadColor); |
| } |
| |
| rebase_colors(bqs->base_format[0], quadColor); |
| |
| for (j = 0; j < TGSI_QUAD_SIZE; j++) { |
| if (quad->inout.mask & (1 << j)) { |
| int x = itx + (j & 1); |
| int y = ity + (j >> 1); |
| for (i = 0; i < 4; i++) { /* loop over color chans */ |
| tile->data.color[y][x][i] = quadColor[i][j]; |
| } |
| } |
| } |
| } |
| } |
| |
| static void |
| blend_single_add_one_one(struct quad_stage *qs, |
| struct quad_header *quads[], |
| unsigned nr) |
| { |
| const struct blend_quad_stage *bqs = blend_quad_stage(qs); |
| float dest[4][TGSI_QUAD_SIZE]; |
| uint i, j, q; |
| |
| struct softpipe_cached_tile *tile |
| = sp_get_cached_tile(qs->softpipe->cbuf_cache[0], |
| quads[0]->input.x0, |
| quads[0]->input.y0); |
| |
| for (q = 0; q < nr; q++) { |
| struct quad_header *quad = quads[q]; |
| float (*quadColor)[4] = quad->output.color[0]; |
| const int itx = (quad->input.x0 & (TILE_SIZE-1)); |
| const int ity = (quad->input.y0 & (TILE_SIZE-1)); |
| |
| /* get/swizzle dest colors */ |
| for (j = 0; j < TGSI_QUAD_SIZE; j++) { |
| int x = itx + (j & 1); |
| int y = ity + (j >> 1); |
| for (i = 0; i < 4; i++) { |
| dest[i][j] = tile->data.color[y][x][i]; |
| } |
| } |
| |
| /* If fixed-point dest color buffer, need to clamp the incoming |
| * fragment colors now. |
| */ |
| if (bqs->clamp[0] || qs->softpipe->rasterizer->clamp_fragment_color) { |
| clamp_colors(quadColor); |
| } |
| |
| VEC4_ADD(quadColor[0], quadColor[0], dest[0]); /* R */ |
| VEC4_ADD(quadColor[1], quadColor[1], dest[1]); /* G */ |
| VEC4_ADD(quadColor[2], quadColor[2], dest[2]); /* B */ |
| VEC4_ADD(quadColor[3], quadColor[3], dest[3]); /* A */ |
| |
| /* If fixed-point dest color buffer, need to clamp the outgoing |
| * fragment colors now. |
| */ |
| if (bqs->clamp[0]) { |
| clamp_colors(quadColor); |
| } |
| |
| rebase_colors(bqs->base_format[0], quadColor); |
| |
| for (j = 0; j < TGSI_QUAD_SIZE; j++) { |
| if (quad->inout.mask & (1 << j)) { |
| int x = itx + (j & 1); |
| int y = ity + (j >> 1); |
| for (i = 0; i < 4; i++) { /* loop over color chans */ |
| tile->data.color[y][x][i] = quadColor[i][j]; |
| } |
| } |
| } |
| } |
| } |
| |
| |
| /** |
| * Just copy the quad color to the framebuffer tile (respecting the writemask), |
| * for one color buffer. |
| * Clamping will be done, if needed (depending on the color buffer's |
| * datatype) when we write/pack the colors later. |
| */ |
| static void |
| single_output_color(struct quad_stage *qs, |
| struct quad_header *quads[], |
| unsigned nr) |
| { |
| const struct blend_quad_stage *bqs = blend_quad_stage(qs); |
| uint i, j, q; |
| |
| struct softpipe_cached_tile *tile |
| = sp_get_cached_tile(qs->softpipe->cbuf_cache[0], |
| quads[0]->input.x0, |
| quads[0]->input.y0); |
| |
| for (q = 0; q < nr; q++) { |
| struct quad_header *quad = quads[q]; |
| float (*quadColor)[4] = quad->output.color[0]; |
| const int itx = (quad->input.x0 & (TILE_SIZE-1)); |
| const int ity = (quad->input.y0 & (TILE_SIZE-1)); |
| |
| if (qs->softpipe->rasterizer->clamp_fragment_color) |
| clamp_colors(quadColor); |
| |
| rebase_colors(bqs->base_format[0], quadColor); |
| |
| for (j = 0; j < TGSI_QUAD_SIZE; j++) { |
| if (quad->inout.mask & (1 << j)) { |
| int x = itx + (j & 1); |
| int y = ity + (j >> 1); |
| for (i = 0; i < 4; i++) { /* loop over color chans */ |
| tile->data.color[y][x][i] = quadColor[i][j]; |
| } |
| } |
| } |
| } |
| } |
| |
| static void |
| blend_noop(struct quad_stage *qs, |
| struct quad_header *quads[], |
| unsigned nr) |
| { |
| } |
| |
| |
| static void |
| choose_blend_quad(struct quad_stage *qs, |
| struct quad_header *quads[], |
| unsigned nr) |
| { |
| struct blend_quad_stage *bqs = blend_quad_stage(qs); |
| struct softpipe_context *softpipe = qs->softpipe; |
| const struct pipe_blend_state *blend = softpipe->blend; |
| unsigned i; |
| |
| qs->run = blend_fallback; |
| |
| if (softpipe->framebuffer.nr_cbufs == 0) { |
| qs->run = blend_noop; |
| } |
| else if (!softpipe->blend->logicop_enable && |
| softpipe->blend->rt[0].colormask == 0xf && |
| softpipe->framebuffer.nr_cbufs == 1) |
| { |
| if (!blend->rt[0].blend_enable) { |
| qs->run = single_output_color; |
| } |
| 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->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->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; |
| |
| } |
| } |
| } |
| |
| /* For each color buffer, determine if the buffer has destination alpha and |
| * whether color clamping is needed. |
| */ |
| for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) { |
| const enum pipe_format format = softpipe->framebuffer.cbufs[i]->format; |
| const struct util_format_description *desc = |
| util_format_description(format); |
| /* assuming all or no color channels are normalized: */ |
| bqs->clamp[i] = desc->channel[0].normalized; |
| bqs->format_type[i] = desc->channel[0].type; |
| |
| if (util_format_is_intensity(format)) |
| bqs->base_format[i] = INTENSITY; |
| else if (util_format_is_luminance(format)) |
| bqs->base_format[i] = LUMINANCE; |
| else if (util_format_is_luminance_alpha(format)) |
| bqs->base_format[i] = LUMINANCE_ALPHA; |
| else if (!util_format_has_alpha(format)) |
| bqs->base_format[i] = RGB; |
| else |
| bqs->base_format[i] = RGBA; |
| } |
| |
| qs->run(qs, quads, nr); |
| } |
| |
| |
| static void blend_begin(struct quad_stage *qs) |
| { |
| qs->run = choose_blend_quad; |
| } |
| |
| |
| static void blend_destroy(struct quad_stage *qs) |
| { |
| FREE( qs ); |
| } |
| |
| |
| struct quad_stage *sp_quad_blend_stage( struct softpipe_context *softpipe ) |
| { |
| struct blend_quad_stage *stage = CALLOC_STRUCT(blend_quad_stage); |
| |
| if (!stage) |
| return NULL; |
| |
| stage->base.softpipe = softpipe; |
| stage->base.begin = blend_begin; |
| stage->base.run = choose_blend_quad; |
| stage->base.destroy = blend_destroy; |
| |
| return &stage->base; |
| } |