src/mesa/main/atifragshader.h

   1 /*
   2  * Mesa 3-D graphics library ATI Fragment Shader
   3  *
   4  * Copyright (C) 2004  David Airlie   All Rights Reserved.
   5  *
   6  */
   7
   8 #ifndef ATIFRAGSHADER_H
   9 #define ATIFRAGSHADER_H
  10
  11 #include "compiler.h"
  12 #include "glheader.h"
  13 #include "mfeatures.h"
  14
  15 struct _glapi_table;
  16 struct gl_context;
  17
  18 #define MAX_NUM_INSTRUCTIONS_PER_PASS_ATI 8
  19 #define MAX_NUM_PASSES_ATI                2
  20 #define MAX_NUM_FRAGMENT_REGISTERS_ATI    6
  21
  22 struct ati_fs_opcode_st
  23 {
  24    GLenum opcode;
  25    GLint num_src_args;
  26 };
  27
  28 extern struct ati_fs_opcode_st ati_fs_opcodes[];
  29
  30 struct atifragshader_src_register
  31 {
  32    GLuint Index;
  33    GLuint argRep;
  34    GLuint argMod;
  35 };
  36
  37 struct atifragshader_dst_register
  38 {
  39    GLuint Index;
  40    GLuint dstMod;
  41    GLuint dstMask;
  42 };
  43
  44 #define ATI_FRAGMENT_SHADER_COLOR_OP 0
  45 #define ATI_FRAGMENT_SHADER_ALPHA_OP 1
  46 #define ATI_FRAGMENT_SHADER_PASS_OP  2
  47 #define ATI_FRAGMENT_SHADER_SAMPLE_OP 3
  48
  49 /* two opcodes - one for color/one for alpha */
  50 /* up to three source registers for most ops */
  51 struct atifs_instruction
  52 {
  53    GLenum Opcode[2];
  54    GLuint ArgCount[2];
  55    struct atifragshader_src_register SrcReg[2][3];
  56    struct atifragshader_dst_register DstReg[2];
  57 };
  58
  59 /* different from arithmetic shader instruction */
  60 struct atifs_setupinst
  61 {
  62    GLenum Opcode;
  63    GLuint src;
  64    GLenum swizzle;
  65 };
  66
  67
  68 #if FEATURE_ATI_fragment_shader
  69
  70 extern void
  71 _mesa_init_ati_fragment_shader_dispatch(struct _glapi_table *disp);
  72
  73 extern struct ati_fragment_shader *
  74 _mesa_new_ati_fragment_shader(struct gl_context *ctx, GLuint id);
  75
  76 extern void
  77 _mesa_delete_ati_fragment_shader(struct gl_context *ctx,
  78                                  struct ati_fragment_shader *s);
  79
  80
  81 extern GLuint GLAPIENTRY _mesa_GenFragmentShadersATI(GLuint range);
  82
  83 extern void GLAPIENTRY _mesa_BindFragmentShaderATI(GLuint id);
  84
  85 extern void GLAPIENTRY _mesa_DeleteFragmentShaderATI(GLuint id);
  86
  87 extern void GLAPIENTRY _mesa_BeginFragmentShaderATI(void);
  88
  89 extern void GLAPIENTRY _mesa_EndFragmentShaderATI(void);
  90
  91 extern void GLAPIENTRY
  92 _mesa_PassTexCoordATI(GLuint dst, GLuint coord, GLenum swizzle);
  93
  94 extern void GLAPIENTRY
  95 _mesa_SampleMapATI(GLuint dst, GLuint interp, GLenum swizzle);
  96
  97 extern void GLAPIENTRY
  98 _mesa_ColorFragmentOp1ATI(GLenum op, GLuint dst, GLuint dstMask,
  99                           GLuint dstMod, GLuint arg1, GLuint arg1Rep,
 100                           GLuint arg1Mod);
 101
 102 extern void GLAPIENTRY
 103 _mesa_ColorFragmentOp2ATI(GLenum op, GLuint dst, GLuint dstMask,
 104                           GLuint dstMod, GLuint arg1, GLuint arg1Rep,
 105                           GLuint arg1Mod, GLuint arg2, GLuint arg2Rep,
 106                           GLuint arg2Mod);
 107
 108 extern void GLAPIENTRY
 109 _mesa_ColorFragmentOp3ATI(GLenum op, GLuint dst, GLuint dstMask,
 110                           GLuint dstMod, GLuint arg1, GLuint arg1Rep,
 111                           GLuint arg1Mod, GLuint arg2, GLuint arg2Rep,
 112                           GLuint arg2Mod, GLuint arg3, GLuint arg3Rep,
 113                           GLuint arg3Mod);
 114
 115 extern void GLAPIENTRY
 116 _mesa_AlphaFragmentOp1ATI(GLenum op, GLuint dst, GLuint dstMod, GLuint arg1,
 117                           GLuint arg1Rep, GLuint arg1Mod);
 118
 119 extern void GLAPIENTRY
 120 _mesa_AlphaFragmentOp2ATI(GLenum op, GLuint dst, GLuint dstMod, GLuint arg1,
 121                           GLuint arg1Rep, GLuint arg1Mod, GLuint arg2,
 122                           GLuint arg2Rep, GLuint arg2Mod);
 123
 124 extern void GLAPIENTRY
 125 _mesa_AlphaFragmentOp3ATI(GLenum op, GLuint dst, GLuint dstMod, GLuint arg1,
 126                           GLuint arg1Rep, GLuint arg1Mod, GLuint arg2,
 127                           GLuint arg2Rep, GLuint arg2Mod, GLuint arg3,
 128                           GLuint arg3Rep, GLuint arg3Mod);
 129
 130 extern void GLAPIENTRY
 131 _mesa_SetFragmentShaderConstantATI(GLuint dst, const GLfloat * value);
 132
 133 #else /* FEATURE_ATI_fragment_shader */
 134
 135 static INLINE void
 136 _mesa_init_ati_fragment_shader_dispatch(struct _glapi_table *disp)
 137 {
 138 }
 139
 140 static INLINE struct ati_fragment_shader *
 141 _mesa_new_ati_fragment_shader(struct gl_context *ctx, GLuint id)
 142 {
 143    return NULL;
 144 }
 145
 146 static INLINE void
 147 _mesa_delete_ati_fragment_shader(struct gl_context *ctx,
 148                                  struct ati_fragment_shader *s)
 149 {
 150 }
 151
 152 #endif /* FEATURE_ATI_fragment_shader */
 153
 154 #endif /* ATIFRAGSHADER_H */