forked from KolibriOS/kolibrios
1307 lines
42 KiB
C
1307 lines
42 KiB
C
/**************************************************************************
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*
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* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/**
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* quad blending
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* \author Brian Paul
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*/
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#include "pipe/p_defines.h"
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#include "util/u_math.h"
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#include "util/u_memory.h"
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#include "util/u_format.h"
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#include "util/u_dual_blend.h"
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#include "sp_context.h"
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#include "sp_state.h"
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#include "sp_quad.h"
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#include "sp_tile_cache.h"
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#include "sp_quad_pipe.h"
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enum format
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{
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RGBA,
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RGB,
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LUMINANCE,
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LUMINANCE_ALPHA,
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INTENSITY
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};
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/** Subclass of quad_stage */
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struct blend_quad_stage
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{
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struct quad_stage base;
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boolean clamp[PIPE_MAX_COLOR_BUFS]; /**< clamp colors to [0,1]? */
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enum format base_format[PIPE_MAX_COLOR_BUFS];
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enum util_format_type format_type[PIPE_MAX_COLOR_BUFS];
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};
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/** cast wrapper */
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static INLINE struct blend_quad_stage *
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blend_quad_stage(struct quad_stage *stage)
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{
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return (struct blend_quad_stage *) stage;
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}
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#define VEC4_COPY(DST, SRC) \
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do { \
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DST[0] = SRC[0]; \
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DST[1] = SRC[1]; \
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DST[2] = SRC[2]; \
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DST[3] = SRC[3]; \
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} while(0)
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#define VEC4_SCALAR(DST, SRC) \
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do { \
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DST[0] = SRC; \
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DST[1] = SRC; \
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DST[2] = SRC; \
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DST[3] = SRC; \
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} while(0)
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#define VEC4_ADD(R, A, B) \
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do { \
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R[0] = A[0] + B[0]; \
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R[1] = A[1] + B[1]; \
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R[2] = A[2] + B[2]; \
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R[3] = A[3] + B[3]; \
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} while (0)
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#define VEC4_SUB(R, A, B) \
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do { \
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R[0] = A[0] - B[0]; \
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R[1] = A[1] - B[1]; \
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R[2] = A[2] - B[2]; \
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R[3] = A[3] - B[3]; \
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} while (0)
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/** Add and limit result to ceiling of 1.0 */
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#define VEC4_ADD_SAT(R, A, B) \
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do { \
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R[0] = A[0] + B[0]; if (R[0] > 1.0f) R[0] = 1.0f; \
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R[1] = A[1] + B[1]; if (R[1] > 1.0f) R[1] = 1.0f; \
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R[2] = A[2] + B[2]; if (R[2] > 1.0f) R[2] = 1.0f; \
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R[3] = A[3] + B[3]; if (R[3] > 1.0f) R[3] = 1.0f; \
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} while (0)
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/** Subtract and limit result to floor of 0.0 */
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#define VEC4_SUB_SAT(R, A, B) \
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do { \
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R[0] = A[0] - B[0]; if (R[0] < 0.0f) R[0] = 0.0f; \
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R[1] = A[1] - B[1]; if (R[1] < 0.0f) R[1] = 0.0f; \
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R[2] = A[2] - B[2]; if (R[2] < 0.0f) R[2] = 0.0f; \
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R[3] = A[3] - B[3]; if (R[3] < 0.0f) R[3] = 0.0f; \
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} while (0)
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#define VEC4_MUL(R, A, B) \
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do { \
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R[0] = A[0] * B[0]; \
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R[1] = A[1] * B[1]; \
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R[2] = A[2] * B[2]; \
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R[3] = A[3] * B[3]; \
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} while (0)
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#define VEC4_MIN(R, A, B) \
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do { \
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R[0] = (A[0] < B[0]) ? A[0] : B[0]; \
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R[1] = (A[1] < B[1]) ? A[1] : B[1]; \
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R[2] = (A[2] < B[2]) ? A[2] : B[2]; \
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R[3] = (A[3] < B[3]) ? A[3] : B[3]; \
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} while (0)
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#define VEC4_MAX(R, A, B) \
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do { \
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R[0] = (A[0] > B[0]) ? A[0] : B[0]; \
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R[1] = (A[1] > B[1]) ? A[1] : B[1]; \
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R[2] = (A[2] > B[2]) ? A[2] : B[2]; \
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R[3] = (A[3] > B[3]) ? A[3] : B[3]; \
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} while (0)
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static void
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logicop_quad(struct quad_stage *qs,
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float (*quadColor)[4],
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float (*dest)[4])
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{
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struct softpipe_context *softpipe = qs->softpipe;
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ubyte src[4][4], dst[4][4], res[4][4];
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uint *src4 = (uint *) src;
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uint *dst4 = (uint *) dst;
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uint *res4 = (uint *) res;
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uint j;
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/* convert to ubyte */
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for (j = 0; j < 4; j++) { /* loop over R,G,B,A channels */
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dst[j][0] = float_to_ubyte(dest[j][0]); /* P0 */
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dst[j][1] = float_to_ubyte(dest[j][1]); /* P1 */
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dst[j][2] = float_to_ubyte(dest[j][2]); /* P2 */
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dst[j][3] = float_to_ubyte(dest[j][3]); /* P3 */
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src[j][0] = float_to_ubyte(quadColor[j][0]); /* P0 */
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src[j][1] = float_to_ubyte(quadColor[j][1]); /* P1 */
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src[j][2] = float_to_ubyte(quadColor[j][2]); /* P2 */
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src[j][3] = float_to_ubyte(quadColor[j][3]); /* P3 */
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}
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switch (softpipe->blend->logicop_func) {
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case PIPE_LOGICOP_CLEAR:
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for (j = 0; j < 4; j++)
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res4[j] = 0;
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break;
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case PIPE_LOGICOP_NOR:
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for (j = 0; j < 4; j++)
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res4[j] = ~(src4[j] | dst4[j]);
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break;
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case PIPE_LOGICOP_AND_INVERTED:
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for (j = 0; j < 4; j++)
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res4[j] = ~src4[j] & dst4[j];
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break;
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case PIPE_LOGICOP_COPY_INVERTED:
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for (j = 0; j < 4; j++)
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res4[j] = ~src4[j];
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break;
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case PIPE_LOGICOP_AND_REVERSE:
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for (j = 0; j < 4; j++)
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res4[j] = src4[j] & ~dst4[j];
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break;
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case PIPE_LOGICOP_INVERT:
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for (j = 0; j < 4; j++)
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res4[j] = ~dst4[j];
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break;
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case PIPE_LOGICOP_XOR:
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for (j = 0; j < 4; j++)
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res4[j] = dst4[j] ^ src4[j];
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break;
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case PIPE_LOGICOP_NAND:
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for (j = 0; j < 4; j++)
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res4[j] = ~(src4[j] & dst4[j]);
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break;
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case PIPE_LOGICOP_AND:
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for (j = 0; j < 4; j++)
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res4[j] = src4[j] & dst4[j];
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break;
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case PIPE_LOGICOP_EQUIV:
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for (j = 0; j < 4; j++)
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res4[j] = ~(src4[j] ^ dst4[j]);
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break;
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case PIPE_LOGICOP_NOOP:
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for (j = 0; j < 4; j++)
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res4[j] = dst4[j];
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break;
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case PIPE_LOGICOP_OR_INVERTED:
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for (j = 0; j < 4; j++)
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res4[j] = ~src4[j] | dst4[j];
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break;
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case PIPE_LOGICOP_COPY:
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for (j = 0; j < 4; j++)
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res4[j] = src4[j];
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break;
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case PIPE_LOGICOP_OR_REVERSE:
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for (j = 0; j < 4; j++)
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res4[j] = src4[j] | ~dst4[j];
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break;
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case PIPE_LOGICOP_OR:
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for (j = 0; j < 4; j++)
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res4[j] = src4[j] | dst4[j];
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break;
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case PIPE_LOGICOP_SET:
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for (j = 0; j < 4; j++)
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res4[j] = ~0;
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break;
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default:
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assert(0 && "invalid logicop mode");
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}
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for (j = 0; j < 4; j++) {
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quadColor[j][0] = ubyte_to_float(res[j][0]);
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quadColor[j][1] = ubyte_to_float(res[j][1]);
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quadColor[j][2] = ubyte_to_float(res[j][2]);
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quadColor[j][3] = ubyte_to_float(res[j][3]);
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}
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}
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/**
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* Do blending for a 2x2 quad for one color buffer.
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* \param quadColor the incoming quad colors
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* \param dest the destination/framebuffer quad colors
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* \param const_blend_color the constant blend color
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* \param blend_index which set of blending terms to use
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*/
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static void
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blend_quad(struct quad_stage *qs,
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float (*quadColor)[4],
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float (*quadColor2)[4],
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float (*dest)[4],
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const float const_blend_color[4],
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unsigned blend_index)
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{
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static const float zero[4] = { 0, 0, 0, 0 };
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static const float one[4] = { 1, 1, 1, 1 };
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struct softpipe_context *softpipe = qs->softpipe;
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float source[4][TGSI_QUAD_SIZE] = { { 0 } };
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float blend_dest[4][TGSI_QUAD_SIZE];
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/*
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* Compute src/first term RGB
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*/
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switch (softpipe->blend->rt[blend_index].rgb_src_factor) {
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case PIPE_BLENDFACTOR_ONE:
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VEC4_COPY(source[0], quadColor[0]); /* R */
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VEC4_COPY(source[1], quadColor[1]); /* G */
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VEC4_COPY(source[2], quadColor[2]); /* B */
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break;
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case PIPE_BLENDFACTOR_SRC_COLOR:
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VEC4_MUL(source[0], quadColor[0], quadColor[0]); /* R */
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VEC4_MUL(source[1], quadColor[1], quadColor[1]); /* G */
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VEC4_MUL(source[2], quadColor[2], quadColor[2]); /* B */
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break;
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case PIPE_BLENDFACTOR_SRC_ALPHA:
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{
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const float *alpha = quadColor[3];
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VEC4_MUL(source[0], quadColor[0], alpha); /* R */
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VEC4_MUL(source[1], quadColor[1], alpha); /* G */
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VEC4_MUL(source[2], quadColor[2], alpha); /* B */
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}
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break;
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case PIPE_BLENDFACTOR_DST_COLOR:
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VEC4_MUL(source[0], quadColor[0], dest[0]); /* R */
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VEC4_MUL(source[1], quadColor[1], dest[1]); /* G */
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VEC4_MUL(source[2], quadColor[2], dest[2]); /* B */
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break;
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case PIPE_BLENDFACTOR_DST_ALPHA:
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{
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const float *alpha = dest[3];
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VEC4_MUL(source[0], quadColor[0], alpha); /* R */
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VEC4_MUL(source[1], quadColor[1], alpha); /* G */
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VEC4_MUL(source[2], quadColor[2], alpha); /* B */
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}
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break;
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case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
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{
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const float *alpha = quadColor[3];
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float diff[4], temp[4];
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VEC4_SUB(diff, one, dest[3]);
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VEC4_MIN(temp, alpha, diff);
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VEC4_MUL(source[0], quadColor[0], temp); /* R */
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VEC4_MUL(source[1], quadColor[1], temp); /* G */
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VEC4_MUL(source[2], quadColor[2], temp); /* B */
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}
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break;
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case PIPE_BLENDFACTOR_CONST_COLOR:
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{
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float comp[4];
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VEC4_SCALAR(comp, const_blend_color[0]); /* R */
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VEC4_MUL(source[0], quadColor[0], comp); /* R */
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VEC4_SCALAR(comp, const_blend_color[1]); /* G */
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VEC4_MUL(source[1], quadColor[1], comp); /* G */
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VEC4_SCALAR(comp, const_blend_color[2]); /* B */
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VEC4_MUL(source[2], quadColor[2], comp); /* B */
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}
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break;
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case PIPE_BLENDFACTOR_CONST_ALPHA:
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{
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float alpha[4];
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VEC4_SCALAR(alpha, const_blend_color[3]);
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VEC4_MUL(source[0], quadColor[0], alpha); /* R */
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VEC4_MUL(source[1], quadColor[1], alpha); /* G */
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VEC4_MUL(source[2], quadColor[2], alpha); /* B */
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}
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break;
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case PIPE_BLENDFACTOR_SRC1_COLOR:
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VEC4_MUL(source[0], quadColor[0], quadColor2[0]); /* R */
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VEC4_MUL(source[1], quadColor[1], quadColor2[1]); /* G */
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VEC4_MUL(source[2], quadColor[2], quadColor2[2]); /* B */
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break;
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case PIPE_BLENDFACTOR_SRC1_ALPHA:
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{
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const float *alpha = quadColor2[3];
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VEC4_MUL(source[0], quadColor[0], alpha); /* R */
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VEC4_MUL(source[1], quadColor[1], alpha); /* G */
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VEC4_MUL(source[2], quadColor[2], alpha); /* B */
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}
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break;
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case PIPE_BLENDFACTOR_ZERO:
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VEC4_COPY(source[0], zero); /* R */
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VEC4_COPY(source[1], zero); /* G */
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VEC4_COPY(source[2], zero); /* B */
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break;
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case PIPE_BLENDFACTOR_INV_SRC_COLOR:
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{
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float inv_comp[4];
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VEC4_SUB(inv_comp, one, quadColor[0]); /* R */
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VEC4_MUL(source[0], quadColor[0], inv_comp); /* R */
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VEC4_SUB(inv_comp, one, quadColor[1]); /* G */
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VEC4_MUL(source[1], quadColor[1], inv_comp); /* G */
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VEC4_SUB(inv_comp, one, quadColor[2]); /* B */
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VEC4_MUL(source[2], quadColor[2], inv_comp); /* B */
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}
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break;
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case PIPE_BLENDFACTOR_INV_SRC_ALPHA:
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{
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float inv_alpha[4];
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VEC4_SUB(inv_alpha, one, quadColor[3]);
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VEC4_MUL(source[0], quadColor[0], inv_alpha); /* R */
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VEC4_MUL(source[1], quadColor[1], inv_alpha); /* G */
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VEC4_MUL(source[2], quadColor[2], inv_alpha); /* B */
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}
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break;
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case PIPE_BLENDFACTOR_INV_DST_ALPHA:
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{
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float inv_alpha[4];
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VEC4_SUB(inv_alpha, one, dest[3]);
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VEC4_MUL(source[0], quadColor[0], inv_alpha); /* R */
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VEC4_MUL(source[1], quadColor[1], inv_alpha); /* G */
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VEC4_MUL(source[2], quadColor[2], inv_alpha); /* B */
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}
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break;
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case PIPE_BLENDFACTOR_INV_DST_COLOR:
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{
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float inv_comp[4];
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VEC4_SUB(inv_comp, one, dest[0]); /* R */
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VEC4_MUL(source[0], quadColor[0], inv_comp); /* R */
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VEC4_SUB(inv_comp, one, dest[1]); /* G */
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VEC4_MUL(source[1], quadColor[1], inv_comp); /* G */
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VEC4_SUB(inv_comp, one, dest[2]); /* B */
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VEC4_MUL(source[2], quadColor[2], inv_comp); /* B */
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}
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break;
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case PIPE_BLENDFACTOR_INV_CONST_COLOR:
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{
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float inv_comp[4];
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/* R */
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VEC4_SCALAR(inv_comp, 1.0f - const_blend_color[0]);
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VEC4_MUL(source[0], quadColor[0], inv_comp);
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/* G */
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VEC4_SCALAR(inv_comp, 1.0f - const_blend_color[1]);
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VEC4_MUL(source[1], quadColor[1], inv_comp);
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/* B */
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VEC4_SCALAR(inv_comp, 1.0f - const_blend_color[2]);
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VEC4_MUL(source[2], quadColor[2], inv_comp);
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}
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break;
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case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
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{
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float inv_alpha[4];
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VEC4_SCALAR(inv_alpha, 1.0f - const_blend_color[3]);
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VEC4_MUL(source[0], quadColor[0], inv_alpha); /* R */
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VEC4_MUL(source[1], quadColor[1], inv_alpha); /* G */
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VEC4_MUL(source[2], quadColor[2], inv_alpha); /* B */
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}
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break;
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case PIPE_BLENDFACTOR_INV_SRC1_COLOR:
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{
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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;
|
|
}
|