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/*
Copyright (C) Intel Corp. 2006. All Rights Reserved.
Intel funded Tungsten Graphics to
develop this 3D driver.
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, sublicense, 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 NONINFRINGEMENT.
IN NO EVENT SHALL THE COPYRIGHT OWNER(S) 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.
**********************************************************************/
/*
* Authors:
* Keith Whitwell <keithw@vmware.com>
*/
#ifndef BRW_WM_H
#define BRW_WM_H
#include <stdbool.h>
#include "program/prog_instruction.h"
#include "brw_context.h"
#include "brw_eu.h"
#include "brw_program.h"
/* A big lookup table is used to figure out which and how many
* additional regs will inserted before the main payload in the WM
* program execution. These mainly relate to depth and stencil
* processing and the early-depth-test optimization.
*/
#define IZ_PS_KILL_ALPHATEST_BIT 0x1
#define IZ_PS_COMPUTES_DEPTH_BIT 0x2
#define IZ_DEPTH_WRITE_ENABLE_BIT 0x4
#define IZ_DEPTH_TEST_ENABLE_BIT 0x8
#define IZ_STENCIL_WRITE_ENABLE_BIT 0x10
#define IZ_STENCIL_TEST_ENABLE_BIT 0x20
#define IZ_BIT_MAX 0x40
#define AA_NEVER 0
#define AA_SOMETIMES 1
#define AA_ALWAYS 2
/**
* Compile a fragment shader.
*
* Returns the final assembly and the program's size.
*/
const unsigned *brw_wm_fs_emit(struct brw_context *brw,
void *mem_ctx,
const struct brw_wm_prog_key *key,
struct brw_wm_prog_data *prog_data,
struct gl_fragment_program *fp,
struct gl_shader_program *prog,
unsigned *final_assembly_size);
GLboolean brw_link_shader(struct gl_context *ctx, struct gl_shader_program *prog);
struct gl_shader *brw_new_shader(struct gl_context *ctx, GLuint name, GLuint type);
bool brw_color_buffer_write_enabled(struct brw_context *brw);
bool do_wm_prog(struct brw_context *brw,
struct gl_shader_program *prog,
struct brw_fragment_program *fp,
struct brw_wm_prog_key *key);
void brw_wm_debug_recompile(struct brw_context *brw,
struct gl_shader_program *prog,
const struct brw_wm_prog_key *key);
bool brw_wm_prog_data_compare(const void *a, const void *b);
#endif
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