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/**************************************************************************
*
* 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.
*
**************************************************************************/
/**
* \brief quad colormask stage
* \author Brian Paul
*/
#include "pipe/p_defines.h"
#include "pipe/p_util.h"
#include "sp_context.h"
#include "sp_headers.h"
#include "sp_surface.h"
#include "sp_quad.h"
#include "sp_tile_cache.h"
/**
* XXX colormask could be rolled into blending...
*/
static void
colormask_quad(struct quad_stage *qs, struct quad_header *quad)
{
struct softpipe_context *softpipe = qs->softpipe;
float dest[4][QUAD_SIZE];
struct softpipe_cached_tile *tile
= sp_get_cached_tile(softpipe,
softpipe->cbuf_cache[softpipe->current_cbuf],
quad->x0, quad->y0);
float (*quadColor)[4] = quad->outputs.color;
uint i, j;
/* get/swizzle dest colors */
for (j = 0; j < QUAD_SIZE; j++) {
int x = (quad->x0 & (TILE_SIZE-1)) + (j & 1);
int y = (quad->y0 & (TILE_SIZE-1)) + (j >> 1);
for (i = 0; i < 4; i++) {
dest[i][j] = tile->data.color[y][x][i];
}
}
/* R */
if (!(softpipe->blend->colormask & PIPE_MASK_R))
COPY_4V(quadColor[0], dest[0]);
/* G */
if (!(softpipe->blend->colormask & PIPE_MASK_G))
COPY_4V(quadColor[1], dest[1]);
/* B */
if (!(softpipe->blend->colormask & PIPE_MASK_B))
COPY_4V(quadColor[2], dest[2]);
/* A */
if (!(softpipe->blend->colormask & PIPE_MASK_A))
COPY_4V(quadColor[3], dest[3]);
/* pass quad to next stage */
qs->next->run(qs->next, quad);
}
static void colormask_begin(struct quad_stage *qs)
{
qs->next->begin(qs->next);
}
static void colormask_destroy(struct quad_stage *qs)
{
FREE( qs );
}
struct quad_stage *sp_quad_colormask_stage( struct softpipe_context *softpipe )
{
struct quad_stage *stage = CALLOC_STRUCT(quad_stage);
stage->softpipe = softpipe;
stage->begin = colormask_begin;
stage->run = colormask_quad;
stage->destroy = colormask_destroy;
return stage;
}
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