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| 1901 | serge | 1 | /* |
| 2 | * Mesa 3-D graphics library |
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| 3 | * Version: 7.0.3 |
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| 4 | * |
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| 5 | * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. |
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| 6 | * |
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| 7 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 8 | * copy of this software and associated documentation files (the "Software"), |
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| 9 | * to deal in the Software without restriction, including without limitation |
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| 10 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 11 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 12 | * Software is furnished to do so, subject to the following conditions: |
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| 13 | * |
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| 14 | * The above copyright notice and this permission notice shall be included |
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| 15 | * in all copies or substantial portions of the Software. |
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| 16 | * |
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| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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| 18 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 20 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
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| 21 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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| 22 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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| 23 | */ |
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| 24 | |||
| 25 | #ifndef PROG_EXECUTE_H |
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| 26 | #define PROG_EXECUTE_H |
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| 27 | |||
| 28 | #include "main/config.h" |
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| 29 | #include "main/mtypes.h" |
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| 30 | |||
| 31 | |||
| 32 | typedef void (*FetchTexelLodFunc)(struct gl_context *ctx, const GLfloat texcoord[4], |
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| 33 | GLfloat lambda, GLuint unit, GLfloat color[4]); |
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| 34 | |||
| 35 | typedef void (*FetchTexelDerivFunc)(struct gl_context *ctx, const GLfloat texcoord[4], |
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| 36 | const GLfloat texdx[4], |
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| 37 | const GLfloat texdy[4], |
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| 38 | GLfloat lodBias, |
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| 39 | GLuint unit, GLfloat color[4]); |
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| 40 | |||
| 41 | |||
| 42 | /** |
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| 43 | * Virtual machine state used during execution of vertex/fragment programs. |
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| 44 | */ |
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| 45 | struct gl_program_machine |
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| 46 | { |
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| 47 | const struct gl_program *CurProgram; |
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| 48 | |||
| 49 | /** Fragment Input attributes */ |
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| 50 | GLfloat (*Attribs)[MAX_WIDTH][4]; |
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| 51 | GLfloat (*DerivX)[4]; |
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| 52 | GLfloat (*DerivY)[4]; |
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| 53 | GLuint NumDeriv; /**< Max index into DerivX/Y arrays */ |
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| 54 | GLuint CurElement; /**< Index into Attribs arrays */ |
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| 55 | |||
| 56 | /** Vertex Input attribs */ |
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| 57 | GLfloat VertAttribs[VERT_ATTRIB_MAX][4]; |
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| 58 | |||
| 59 | GLfloat Temporaries[MAX_PROGRAM_TEMPS][4]; |
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| 60 | GLfloat Outputs[MAX_PROGRAM_OUTPUTS][4]; |
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| 61 | GLfloat (*EnvParams)[4]; /**< Vertex or Fragment env parameters */ |
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| 62 | GLuint CondCodes[4]; /**< COND_* value for x/y/z/w */ |
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| 63 | GLint AddressReg[MAX_PROGRAM_ADDRESS_REGS][4]; |
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| 64 | |||
| 65 | const GLubyte *Samplers; /** Array mapping sampler var to tex unit */ |
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| 66 | |||
| 67 | GLuint CallStack[MAX_PROGRAM_CALL_DEPTH]; /**< For CAL/RET instructions */ |
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| 68 | GLuint StackDepth; /**< Index/ptr to top of CallStack[] */ |
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| 69 | |||
| 70 | /** Texture fetch functions */ |
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| 71 | FetchTexelLodFunc FetchTexelLod; |
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| 72 | FetchTexelDerivFunc FetchTexelDeriv; |
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| 73 | }; |
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| 74 | |||
| 75 | |||
| 76 | extern void |
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| 77 | _mesa_get_program_register(struct gl_context *ctx, gl_register_file file, |
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| 78 | GLuint index, GLfloat val[4]); |
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| 79 | |||
| 80 | extern GLboolean |
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| 81 | _mesa_execute_program(struct gl_context *ctx, |
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| 82 | const struct gl_program *program, |
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| 83 | struct gl_program_machine *machine); |
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| 84 | |||
| 85 | |||
| 86 | #endif /* PROG_EXECUTE_H */ |