1 /* 2 * Mesa 3-D graphics library 3 * Version: 7.0.3 4 * 5 * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a 8 * copy of this software and associated documentation files (the "Software"), 9 * to deal in the Software without restriction, including without limitation 10 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11 * and/or sell copies of the Software, and to permit persons to whom the 12 * Software is furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included 15 * in all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 23 */ 24 25 #ifndef PROG_EXECUTE_H 26 #define PROG_EXECUTE_H 27 28 #include "main/config.h" 29 #include "main/mtypes.h" 30 31 32 typedef void (*FetchTexelLodFunc)(struct gl_context *ctx, const GLfloat texcoord[4], 33 GLfloat lambda, GLuint unit, GLfloat color[4]); 34 35 typedef void (*FetchTexelDerivFunc)(struct gl_context *ctx, const GLfloat texcoord[4], 36 const GLfloat texdx[4], 37 const GLfloat texdy[4], 38 GLfloat lodBias, 39 GLuint unit, GLfloat color[4]); 40 41 42 /** NOTE: This must match SWRAST_MAX_WIDTH */ 43 #define PROG_MAX_WIDTH 16384 44 45 46 /** 47 * Virtual machine state used during execution of vertex/fragment programs. 48 */ 49 struct gl_program_machine 50 { 51 const struct gl_program *CurProgram; 52 53 /** Fragment Input attributes */ 54 GLfloat (*Attribs)[PROG_MAX_WIDTH][4]; 55 GLfloat (*DerivX)[4]; 56 GLfloat (*DerivY)[4]; 57 GLuint NumDeriv; /**< Max index into DerivX/Y arrays */ 58 GLuint CurElement; /**< Index into Attribs arrays */ 59 60 /** Vertex Input attribs */ 61 GLfloat VertAttribs[VERT_ATTRIB_MAX][4]; 62 63 GLfloat Temporaries[MAX_PROGRAM_TEMPS][4]; 64 GLfloat Outputs[MAX_PROGRAM_OUTPUTS][4]; 65 GLfloat (*EnvParams)[4]; /**< Vertex or Fragment env parameters */ 66 GLuint CondCodes[4]; /**< COND_* value for x/y/z/w */ 67 GLint AddressReg[MAX_PROGRAM_ADDRESS_REGS][4]; 68 GLfloat SystemValues[SYSTEM_VALUE_MAX][4]; 69 70 const GLubyte *Samplers; /** Array mapping sampler var to tex unit */ 71 72 GLuint CallStack[MAX_PROGRAM_CALL_DEPTH]; /**< For CAL/RET instructions */ 73 GLuint StackDepth; /**< Index/ptr to top of CallStack[] */ 74 75 /** Texture fetch functions */ 76 FetchTexelLodFunc FetchTexelLod; 77 FetchTexelDerivFunc FetchTexelDeriv; 78 }; 79 80 81 extern void 82 _mesa_get_program_register(struct gl_context *ctx, gl_register_file file, 83 GLuint index, GLfloat val[4]); 84 85 extern GLboolean 86 _mesa_execute_program(struct gl_context *ctx, 87 const struct gl_program *program, 88 struct gl_program_machine *machine); 89 90 91 #endif /* PROG_EXECUTE_H */ 92
