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5564 | serge | 1 | /* |
2 | * Mesa 3-D graphics library |
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3 | * |
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4 | * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. |
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5 | * |
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6 | * Permission is hereby granted, free of charge, to any person obtaining a |
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7 | * copy of this software and associated documentation files (the "Software"), |
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8 | * to deal in the Software without restriction, including without limitation |
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9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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10 | * and/or sell copies of the Software, and to permit persons to whom the |
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11 | * Software is furnished to do so, subject to the following conditions: |
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12 | * |
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13 | * The above copyright notice and this permission notice shall be included |
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14 | * in all copies or substantial portions of the Software. |
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15 | * |
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16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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17 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
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20 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
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21 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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22 | * 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 | /** NOTE: This must match SWRAST_MAX_WIDTH */ |
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43 | #define PROG_MAX_WIDTH 16384 |
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44 | |||
45 | |||
46 | /** |
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47 | * Virtual machine state used during execution of vertex/fragment programs. |
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48 | */ |
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49 | struct gl_program_machine |
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50 | { |
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51 | const struct gl_program *CurProgram; |
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52 | |||
53 | /** Fragment Input attributes */ |
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54 | GLfloat (*Attribs)[PROG_MAX_WIDTH][4]; |
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55 | GLfloat (*DerivX)[4]; |
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56 | GLfloat (*DerivY)[4]; |
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57 | GLuint NumDeriv; /**< Max index into DerivX/Y arrays */ |
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58 | GLuint CurElement; /**< Index into Attribs arrays */ |
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59 | |||
60 | /** Vertex Input attribs */ |
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61 | GLfloat VertAttribs[VERT_ATTRIB_MAX][4]; |
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62 | |||
63 | GLfloat Temporaries[MAX_PROGRAM_TEMPS][4]; |
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64 | GLfloat Outputs[MAX_PROGRAM_OUTPUTS][4]; |
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65 | GLfloat (*EnvParams)[4]; /**< Vertex or Fragment env parameters */ |
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66 | GLuint CondCodes[4]; /**< COND_* value for x/y/z/w */ |
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67 | GLint AddressReg[MAX_PROGRAM_ADDRESS_REGS][4]; |
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68 | GLfloat SystemValues[SYSTEM_VALUE_MAX][4]; |
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69 | |||
70 | const GLubyte *Samplers; /** Array mapping sampler var to tex unit */ |
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71 | |||
72 | GLuint CallStack[MAX_PROGRAM_CALL_DEPTH]; /**< For CAL/RET instructions */ |
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73 | GLuint StackDepth; /**< Index/ptr to top of CallStack[] */ |
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74 | |||
75 | /** Texture fetch functions */ |
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76 | FetchTexelLodFunc FetchTexelLod; |
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77 | FetchTexelDerivFunc FetchTexelDeriv; |
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78 | }; |
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79 | |||
80 | |||
81 | extern void |
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82 | _mesa_get_program_register(struct gl_context *ctx, gl_register_file file, |
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83 | GLuint index, GLfloat val[4]); |
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84 | |||
85 | extern GLboolean |
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86 | _mesa_execute_program(struct gl_context *ctx, |
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87 | const struct gl_program *program, |
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88 | struct gl_program_machine *machine); |
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89 | |||
90 | |||
91 | #endif /* PROG_EXECUTE_H */>>>>>> |