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/**************************************************************************
*
* Copyright 2009 VMware, Inc.
* 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 VMWARE 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.
*
**************************************************************************/
#ifndef LP_RAST_PRIV_H
#define LP_RAST_PRIV_H
#include "lp_rast.h"
struct pipe_transfer;
struct pipe_screen;
/**
* A tile's color and depth memory.
* We can choose whatever layout for the internal tile storage we prefer.
*/
struct lp_rast_tile
{
uint8_t *color;
uint32_t *depth;
};
/**
* This is the state required while rasterizing a tile.
* The tile size is TILE_SIZE x TILE_SIZE pixels.
*/
struct lp_rasterizer
{
struct lp_rast_tile tile; /** Tile color/z/stencil memory */
unsigned x, y; /**< Pos of this tile in framebuffer, in pixels */
unsigned width, height; /**< Size of framebuffer, in pixels */
boolean clipped_tile;
boolean check_for_clipped_tiles;
/* Framebuffer stuff
*/
struct pipe_screen *screen;
struct pipe_transfer *cbuf_transfer;
struct pipe_transfer *zsbuf_transfer;
void *cbuf_map;
void *zsbuf_map;
struct {
struct pipe_surface *cbuf;
struct pipe_surface *zsbuf;
boolean write_color;
boolean write_zstencil;
unsigned clear_color;
unsigned clear_depth;
char clear_stencil;
} state;
/* Pixel blocks produced during rasterization
*/
unsigned nr_blocks;
struct {
unsigned x;
unsigned y;
unsigned mask;
} blocks[256];
const struct lp_rast_state *current_state;
};
void lp_rast_shade_quads( struct lp_rasterizer *rast,
const struct lp_rast_shader_inputs *inputs,
unsigned x, unsigned y,
unsigned masks);
#endif
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