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/*
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 * Mesa 3-D graphics library ATI Fragment Shader
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 *
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 * Copyright (C) 2004  David Airlie   All Rights Reserved.
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 *
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 */
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#ifndef ATIFRAGSHADER_H
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#define ATIFRAGSHADER_H
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#include "glheader.h"
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struct gl_context;
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#define MAX_NUM_INSTRUCTIONS_PER_PASS_ATI 8
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#define MAX_NUM_PASSES_ATI                2
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#define MAX_NUM_FRAGMENT_REGISTERS_ATI    6
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struct ati_fs_opcode_st
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{
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   GLenum opcode;
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   GLint num_src_args;
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};
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struct atifragshader_src_register
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{
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   GLuint Index;
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   GLuint argRep;
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   GLuint argMod;
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};
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struct atifragshader_dst_register
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{
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   GLuint Index;
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   GLuint dstMod;
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   GLuint dstMask;
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};
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#define ATI_FRAGMENT_SHADER_COLOR_OP 0
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#define ATI_FRAGMENT_SHADER_ALPHA_OP 1
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#define ATI_FRAGMENT_SHADER_PASS_OP  2
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#define ATI_FRAGMENT_SHADER_SAMPLE_OP 3
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/* two opcodes - one for color/one for alpha */
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/* up to three source registers for most ops */
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struct atifs_instruction
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{
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   GLenum Opcode[2];
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   GLuint ArgCount[2];
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   struct atifragshader_src_register SrcReg[2][3];
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   struct atifragshader_dst_register DstReg[2];
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};
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/* different from arithmetic shader instruction */
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struct atifs_setupinst
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{
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   GLenum Opcode;
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   GLuint src;
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   GLenum swizzle;
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};
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extern struct ati_fragment_shader *
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_mesa_new_ati_fragment_shader(struct gl_context *ctx, GLuint id);
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extern void
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_mesa_delete_ati_fragment_shader(struct gl_context *ctx,
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                                 struct ati_fragment_shader *s);
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extern GLuint GLAPIENTRY _mesa_GenFragmentShadersATI(GLuint range);
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extern void GLAPIENTRY _mesa_BindFragmentShaderATI(GLuint id);
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extern void GLAPIENTRY _mesa_DeleteFragmentShaderATI(GLuint id);
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extern void GLAPIENTRY _mesa_BeginFragmentShaderATI(void);
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extern void GLAPIENTRY _mesa_EndFragmentShaderATI(void);
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extern void GLAPIENTRY
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_mesa_PassTexCoordATI(GLuint dst, GLuint coord, GLenum swizzle);
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extern void GLAPIENTRY
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_mesa_SampleMapATI(GLuint dst, GLuint interp, GLenum swizzle);
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extern void GLAPIENTRY
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_mesa_ColorFragmentOp1ATI(GLenum op, GLuint dst, GLuint dstMask,
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			  GLuint dstMod, GLuint arg1, GLuint arg1Rep,
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			  GLuint arg1Mod);
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extern void GLAPIENTRY
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_mesa_ColorFragmentOp2ATI(GLenum op, GLuint dst, GLuint dstMask,
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			  GLuint dstMod, GLuint arg1, GLuint arg1Rep,
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			  GLuint arg1Mod, GLuint arg2, GLuint arg2Rep,
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			  GLuint arg2Mod);
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extern void GLAPIENTRY
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_mesa_ColorFragmentOp3ATI(GLenum op, GLuint dst, GLuint dstMask,
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			  GLuint dstMod, GLuint arg1, GLuint arg1Rep,
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			  GLuint arg1Mod, GLuint arg2, GLuint arg2Rep,
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			  GLuint arg2Mod, GLuint arg3, GLuint arg3Rep,
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			  GLuint arg3Mod);
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extern void GLAPIENTRY
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_mesa_AlphaFragmentOp1ATI(GLenum op, GLuint dst, GLuint dstMod, GLuint arg1,
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			  GLuint arg1Rep, GLuint arg1Mod);
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extern void GLAPIENTRY
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_mesa_AlphaFragmentOp2ATI(GLenum op, GLuint dst, GLuint dstMod, GLuint arg1,
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			  GLuint arg1Rep, GLuint arg1Mod, GLuint arg2,
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			  GLuint arg2Rep, GLuint arg2Mod);
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extern void GLAPIENTRY
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_mesa_AlphaFragmentOp3ATI(GLenum op, GLuint dst, GLuint dstMod, GLuint arg1,
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			  GLuint arg1Rep, GLuint arg1Mod, GLuint arg2,
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			  GLuint arg2Rep, GLuint arg2Mod, GLuint arg3,
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			  GLuint arg3Rep, GLuint arg3Mod);
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extern void GLAPIENTRY
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_mesa_SetFragmentShaderConstantATI(GLuint dst, const GLfloat * value);
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#endif /* ATIFRAGSHADER_H */