| /* |
| * Mesa 3-D graphics library |
| * |
| * Copyright (C) 1999-2007 Brian Paul 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, 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 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 AUTHORS OR COPYRIGHT HOLDERS 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. |
| */ |
| |
| /** |
| * \file program.c |
| * Vertex and fragment program support functions. |
| * \author Brian Paul |
| */ |
| |
| |
| /** |
| * \mainpage Mesa vertex and fragment program module |
| * |
| * This module or directory contains most of the code for vertex and |
| * fragment programs and shaders, including state management, parsers, |
| * and (some) software routines for executing programs |
| */ |
| |
| #ifndef PROGRAM_H |
| #define PROGRAM_H |
| |
| #include "prog_parameter.h" |
| |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| extern struct gl_program _mesa_DummyProgram; |
| |
| |
| extern void |
| _mesa_init_program(struct gl_context *ctx); |
| |
| extern void |
| _mesa_free_program_data(struct gl_context *ctx); |
| |
| extern void |
| _mesa_update_default_objects_program(struct gl_context *ctx); |
| |
| extern void |
| _mesa_set_program_error(struct gl_context *ctx, GLint pos, const char *string); |
| |
| extern struct gl_program * |
| _mesa_init_gl_program(struct gl_program *prog, gl_shader_stage stage, |
| GLuint id, bool is_arb_asm); |
| |
| extern struct gl_program * |
| _mesa_new_program(struct gl_context *ctx, gl_shader_stage stage, GLuint id, |
| bool is_arb_asm); |
| |
| extern void |
| _mesa_delete_program(struct gl_context *ctx, struct gl_program *prog); |
| |
| extern struct gl_program * |
| _mesa_lookup_program(struct gl_context *ctx, GLuint id); |
| |
| extern void |
| _mesa_reference_program_(struct gl_context *ctx, |
| struct gl_program **ptr, |
| struct gl_program *prog); |
| |
| static inline void |
| _mesa_reference_program(struct gl_context *ctx, |
| struct gl_program **ptr, |
| struct gl_program *prog) |
| { |
| if (*ptr != prog) |
| _mesa_reference_program_(ctx, ptr, prog); |
| } |
| |
| extern GLboolean |
| _mesa_insert_instructions(struct gl_program *prog, GLuint start, GLuint count); |
| |
| extern GLboolean |
| _mesa_delete_instructions(struct gl_program *prog, GLuint start, GLuint count, |
| void *mem_ctx); |
| |
| extern void |
| _mesa_find_used_registers(const struct gl_program *prog, |
| gl_register_file file, |
| GLboolean used[], GLuint usedSize); |
| |
| extern GLint |
| _mesa_find_free_register(const GLboolean used[], |
| GLuint maxRegs, GLuint firstReg); |
| |
| extern GLint |
| _mesa_get_min_invocations_per_fragment(struct gl_context *ctx, |
| const struct gl_program *prog); |
| |
| static inline GLuint |
| _mesa_program_enum_to_shader_stage(GLenum v) |
| { |
| switch (v) { |
| case GL_VERTEX_PROGRAM_ARB: |
| return MESA_SHADER_VERTEX; |
| case GL_FRAGMENT_PROGRAM_ARB: |
| return MESA_SHADER_FRAGMENT; |
| case GL_FRAGMENT_SHADER_ATI: |
| return MESA_SHADER_FRAGMENT; |
| case GL_GEOMETRY_PROGRAM_NV: |
| return MESA_SHADER_GEOMETRY; |
| case GL_TESS_CONTROL_PROGRAM_NV: |
| return MESA_SHADER_TESS_CTRL; |
| case GL_TESS_EVALUATION_PROGRAM_NV: |
| return MESA_SHADER_TESS_EVAL; |
| case GL_COMPUTE_PROGRAM_NV: |
| return MESA_SHADER_COMPUTE; |
| default: |
| assert(0); |
| return ~0; |
| } |
| } |
| |
| |
| static inline GLenum |
| _mesa_shader_stage_to_program(unsigned stage) |
| { |
| switch (stage) { |
| case MESA_SHADER_VERTEX: |
| return GL_VERTEX_PROGRAM_ARB; |
| case MESA_SHADER_FRAGMENT: |
| return GL_FRAGMENT_PROGRAM_ARB; |
| case MESA_SHADER_GEOMETRY: |
| return GL_GEOMETRY_PROGRAM_NV; |
| case MESA_SHADER_TESS_CTRL: |
| return GL_TESS_CONTROL_PROGRAM_NV; |
| case MESA_SHADER_TESS_EVAL: |
| return GL_TESS_EVALUATION_PROGRAM_NV; |
| case MESA_SHADER_COMPUTE: |
| return GL_COMPUTE_PROGRAM_NV; |
| } |
| |
| assert(!"Unexpected shader stage in _mesa_shader_stage_to_program"); |
| return GL_VERTEX_PROGRAM_ARB; |
| } |
| |
| |
| GLbitfield |
| gl_external_samplers(const struct gl_program *prog); |
| |
| |
| #ifdef __cplusplus |
| } /* extern "C" */ |
| #endif |
| |
| #endif /* PROGRAM_H */ |