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