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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.
*
**************************************************************************/
/**
* Quad blending.
*
* @author Jose Fonseca <jfonseca@vmware.com>
* @author Brian Paul
*/
#include "pipe/p_defines.h"
#include "util/u_math.h"
#include "util/u_memory.h"
#include "util/u_debug_dump.h"
#include "lp_context.h"
#include "lp_state.h"
#include "lp_quad.h"
#include "lp_surface.h"
#include "lp_tile_cache.h"
#include "lp_tile_soa.h"
#include "lp_quad_pipe.h"
static void blend_begin(struct quad_stage *qs)
{
}
static void
blend_run(struct quad_stage *qs,
struct quad_header *quads[],
unsigned nr)
{
struct llvmpipe_context *llvmpipe = qs->llvmpipe;
struct lp_blend_state *blend = llvmpipe->blend;
unsigned cbuf;
uint q, i, j;
for (cbuf = 0; cbuf < llvmpipe->framebuffer.nr_cbufs; cbuf++)
{
unsigned x0 = quads[0]->input.x0;
unsigned y0 = quads[0]->input.y0;
uint8_t ALIGN16_ATTRIB src[NUM_CHANNELS][TILE_VECTOR_HEIGHT*TILE_VECTOR_WIDTH];
uint8_t ALIGN16_ATTRIB mask[16];
uint8_t *tile = lp_get_cached_tile(llvmpipe->cbuf_cache[cbuf], x0, y0);
uint8_t *dst;
assert(nr * QUAD_SIZE == TILE_VECTOR_HEIGHT * TILE_VECTOR_WIDTH);
assert(x0 % TILE_VECTOR_WIDTH == 0);
assert(y0 % TILE_VECTOR_HEIGHT == 0);
dst = &TILE_PIXEL(tile, x0 & (TILE_SIZE-1), y0 & (TILE_SIZE-1), 0);
for (q = 0; q < nr; ++q) {
struct quad_header *quad = quads[q];
const int itx = (quad->input.x0 & (TILE_SIZE-1));
const int ity = (quad->input.y0 & (TILE_SIZE-1));
assert(quad->input.x0 == x0 + q*2);
assert(quad->input.y0 == y0);
/* get/swizzle src/dest colors
*/
for (j = 0; j < QUAD_SIZE; j++) {
int x = itx + (j & 1);
int y = ity + (j >> 1);
assert(x < TILE_SIZE);
assert(y < TILE_SIZE);
for (i = 0; i < 4; i++) {
src[i][4*q + j] = float_to_ubyte(quad->output.color[cbuf][i][j]);
}
mask[4*q + j] = quad->inout.mask & (1 << j) ? ~0 : 0;
}
}
assert(blend->jit_function);
assert((((uintptr_t)src) & 0xf) == 0);
assert((((uintptr_t)dst) & 0xf) == 0);
assert((((uintptr_t)llvmpipe->blend_color) & 0xf) == 0);
if(blend->jit_function)
blend->jit_function( mask,
&src[0][0],
&llvmpipe->blend_color[0][0],
dst );
}
}
static void blend_destroy(struct quad_stage *qs)
{
FREE( qs );
}
struct quad_stage *lp_quad_blend_stage( struct llvmpipe_context *llvmpipe )
{
struct quad_stage *stage = CALLOC_STRUCT(quad_stage);
stage->llvmpipe = llvmpipe;
stage->begin = blend_begin;
stage->run = blend_run;
stage->destroy = blend_destroy;
return stage;
}
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