Implement software ATI_fragment_shader

no error detection, slow, may not be 100% correct but a good start

1 files changed, 105 insertions, 0 deletions

diff --git a/src/mesa/shader/atifragshader.h b/src/mesa/shader/atifragshader.h
new file mode 100644
index 00000000000..82ac4746b6b
--- /dev/null
+++ b/src/mesa/shader/atifragshader.h
@@ -0,0 +1,105 @@
+/*
+ * Mesa 3-D graphics library ATI Fragment Shader
+ *
+ * Copyright (C) 2004  David Airlie   All Rights Reserved.
+ *
+ */
+
+#ifndef ATIFRAGSHADER_H
+#define ATIFRAGSHADER_H
+
+#define MAX_NUM_INSTRUCTIONS_PER_PASS_ATI 8
+#define MAX_NUM_PASSES_ATI                2
+#define MAX_NUM_FRAGMENT_REGISTERS_ATI    6
+
+struct ati_fs_opcode_st
+{
+   GLenum opcode;
+   GLint num_src_args;
+};
+
+extern struct ati_fs_opcode_st ati_fs_opcodes[];
+
+struct atifragshader_src_register
+{
+   GLuint Index;
+   GLuint argRep;
+   GLuint argMod;
+};
+
+struct atifragshader_dst_register
+{
+   GLuint Index;
+   GLuint dstMod;
+   GLuint dstMask;
+   GLuint Swizzle;
+};
+
+#define ATI_FRAGMENT_SHADER_COLOR_OP 0
+#define ATI_FRAGMENT_SHADER_ALPHA_OP 1
+#define ATI_FRAGMENT_SHADER_PASS_OP  2
+#define ATI_FRAGMENT_SHADER_SAMPLE_OP 3
+
+/* two opcodes - one for color/one for alpha - also pass/sample */
+/* up to three source registers for most ops */
+struct atifs_instruction
+{
+   GLenum Opcode[2];
+   GLuint ArgCount[2];
+   struct atifragshader_src_register SrcReg[2][3];
+   struct atifragshader_dst_register DstReg[2];
+};
+
+extern GLuint GLAPIENTRY _mesa_GenFragmentShadersATI(GLuint range);
+
+extern void GLAPIENTRY _mesa_BindFragmentShaderATI(GLuint id);
+
+extern void GLAPIENTRY _mesa_DeleteFragmentShaderATI(GLuint id);
+
+extern void GLAPIENTRY _mesa_BeginFragmentShaderATI(void);
+
+extern void GLAPIENTRY _mesa_EndFragmentShaderATI(void);
+
+extern void GLAPIENTRY
+_mesa_PassTexCoordATI(GLuint dst, GLuint coord, GLenum swizzle);
+
+extern void GLAPIENTRY
+_mesa_SampleMapATI(GLuint dst, GLuint interp, GLenum swizzle);
+
+extern void GLAPIENTRY
+_mesa_ColorFragmentOp1ATI(GLenum op, GLuint dst, GLuint dstMask,
+			  GLuint dstMod, GLuint arg1, GLuint arg1Rep,
+			  GLuint arg1Mod);
+
+extern void GLAPIENTRY
+_mesa_ColorFragmentOp2ATI(GLenum op, GLuint dst, GLuint dstMask,
+			  GLuint dstMod, GLuint arg1, GLuint arg1Rep,
+			  GLuint arg1Mod, GLuint arg2, GLuint arg2Rep,
+			  GLuint arg2Mod);
+
+extern void GLAPIENTRY
+_mesa_ColorFragmentOp3ATI(GLenum op, GLuint dst, GLuint dstMask,
+			  GLuint dstMod, GLuint arg1, GLuint arg1Rep,
+			  GLuint arg1Mod, GLuint arg2, GLuint arg2Rep,
+			  GLuint arg2Mod, GLuint arg3, GLuint arg3Rep,
+			  GLuint arg3Mod);
+
+extern void GLAPIENTRY
+_mesa_AlphaFragmentOp1ATI(GLenum op, GLuint dst, GLuint dstMod, GLuint arg1,
+			  GLuint arg1Rep, GLuint arg1Mod);
+
+extern void GLAPIENTRY
+_mesa_AlphaFragmentOp2ATI(GLenum op, GLuint dst, GLuint dstMod, GLuint arg1,
+			  GLuint arg1Rep, GLuint arg1Mod, GLuint arg2,
+			  GLuint arg2Rep, GLuint arg2Mod);
+
+extern void GLAPIENTRY
+_mesa_AlphaFragmentOp3ATI(GLenum op, GLuint dst, GLuint dstMod, GLuint arg1,
+			  GLuint arg1Rep, GLuint arg1Mod, GLuint arg2,
+			  GLuint arg2Rep, GLuint arg2Mod, GLuint arg3,
+			  GLuint arg3Rep, GLuint arg3Mod);
+
+extern void GLAPIENTRY
+_mesa_SetFragmentShaderConstantATI(GLuint dst, const GLfloat * value);
+
+#endif