| /* |
| * 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. |
| */ |
| |
| #ifndef PROG_EXECUTE_H |
| #define PROG_EXECUTE_H |
| |
| #include "main/config.h" |
| #include "main/mtypes.h" |
| |
| |
| typedef void (*FetchTexelLodFunc)(struct gl_context *ctx, const GLfloat texcoord[4], |
| GLfloat lambda, GLuint unit, GLfloat color[4]); |
| |
| typedef void (*FetchTexelDerivFunc)(struct gl_context *ctx, const GLfloat texcoord[4], |
| const GLfloat texdx[4], |
| const GLfloat texdy[4], |
| GLfloat lodBias, |
| GLuint unit, GLfloat color[4]); |
| |
| |
| /** NOTE: This must match SWRAST_MAX_WIDTH */ |
| #define PROG_MAX_WIDTH 16384 |
| |
| |
| /** |
| * Virtual machine state used during execution of vertex/fragment programs. |
| */ |
| struct gl_program_machine |
| { |
| const struct gl_program *CurProgram; |
| |
| /** Fragment Input attributes */ |
| GLfloat (*Attribs)[PROG_MAX_WIDTH][4]; |
| GLfloat (*DerivX)[4]; |
| GLfloat (*DerivY)[4]; |
| GLuint NumDeriv; /**< Max index into DerivX/Y arrays */ |
| GLuint CurElement; /**< Index into Attribs arrays */ |
| |
| /** Vertex Input attribs */ |
| GLfloat VertAttribs[VERT_ATTRIB_MAX][4]; |
| |
| GLfloat Temporaries[MAX_PROGRAM_TEMPS][4]; |
| GLfloat Outputs[MAX_PROGRAM_OUTPUTS][4]; |
| GLfloat (*EnvParams)[4]; /**< Vertex or Fragment env parameters */ |
| GLint AddressReg[MAX_PROGRAM_ADDRESS_REGS][4]; |
| GLfloat SystemValues[SYSTEM_VALUE_MAX][4]; |
| |
| const GLubyte *Samplers; /** Array mapping sampler var to tex unit */ |
| |
| GLuint CallStack[MAX_PROGRAM_CALL_DEPTH]; /**< For CAL/RET instructions */ |
| GLuint StackDepth; /**< Index/ptr to top of CallStack[] */ |
| |
| /** Texture fetch functions */ |
| FetchTexelLodFunc FetchTexelLod; |
| FetchTexelDerivFunc FetchTexelDeriv; |
| }; |
| |
| |
| extern GLboolean |
| _mesa_execute_program(struct gl_context *ctx, |
| const struct gl_program *program, |
| struct gl_program_machine *machine); |
| |
| |
| #endif /* PROG_EXECUTE_H */ |