summaryrefslogtreecommitdiff
path: root/src/mesa/shader/program_instruction.h
diff options
context:
space:
mode:
authorBrian Paul <brian.paul@tungstengraphics.com>2005-11-05 17:10:45 +0000
committerBrian Paul <brian.paul@tungstengraphics.com>2005-11-05 17:10:45 +0000
commit7e807510d8c3e88ee7ae6c697393201cf08f992f (patch)
treee9b016baa0c63f333efd586619568731dc3db747 /src/mesa/shader/program_instruction.h
parent73347516be1a515380af1a71cbeaec51001a46dc (diff)
Unify vertex/fragment program instuctions.
Based on patch by Ian (#4967) but also unify instruction opcodes.
Diffstat (limited to 'src/mesa/shader/program_instruction.h')
-rw-r--r--src/mesa/shader/program_instruction.h344
1 files changed, 344 insertions, 0 deletions
diff --git a/src/mesa/shader/program_instruction.h b/src/mesa/shader/program_instruction.h
new file mode 100644
index 0000000000..80dbd16a90
--- /dev/null
+++ b/src/mesa/shader/program_instruction.h
@@ -0,0 +1,344 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.5
+ *
+ * Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * \file prog_instruction.h
+ *
+ * Private vertex program types and constants only used by files
+ * related to vertex programs.
+ *
+ * \author Brian Paul
+ * \author Keith Whitwell
+ * \author Ian Romanick <idr@us.ibm.com>
+ */
+
+
+#ifndef PROG_INSTRUCTION_H
+#define PROG_INSTRUCTION_H
+
+/**
+ * Condition codes for GL_NV_fragment_program
+ */
+/*@{*/
+#define COND_GT 1 /* greater than zero */
+#define COND_EQ 2 /* equal to zero */
+#define COND_LT 3 /* less than zero */
+#define COND_UN 4 /* unordered (NaN) */
+#define COND_GE 5 /* greater then or equal to zero */
+#define COND_LE 6 /* less then or equal to zero */
+#define COND_NE 7 /* not equal to zero */
+#define COND_TR 8 /* always true */
+#define COND_FL 9 /* always false */
+/*@}*/
+
+
+/*
+ * Instruction precision for GL_NV_fragment_program
+ */
+/*@{*/
+#define FLOAT32 0x1
+#define FLOAT16 0x2
+#define FIXED12 0x4
+/*@}*/
+
+
+/**
+ * Program instruction opcodes, for both vertex and fragment programs.
+ * \note changes to this opcode list must be reflected in t_vb_arbprogram.c
+ */
+ /* ARB_vp ARB_fp NV_vp NV_fp */
+enum prog_opcode { /*---------------------------------*/
+ OPCODE_ABS, /* X 1.1 */
+ OPCODE_ADD, /* X X X X */
+ OPCODE_ARL, /* X X */
+ OPCODE_CMP, /* X */
+ OPCODE_COS, /* X 2 */
+ OPCODE_DDX, /* X */
+ OPCODE_DDY, /* X */
+ OPCODE_DP3, /* X X X X */
+ OPCODE_DP4, /* X X X X */
+ OPCODE_DPH, /* X X 1.1 */
+ OPCODE_DST, /* X X X */
+ OPCODE_END, /* X X X X */
+ OPCODE_EX2, /* X X 2 X */
+ OPCODE_EXP, /* X X */
+ OPCODE_FLR, /* X X 2 X */
+ OPCODE_FRC, /* X X 2 X */
+ OPCODE_KIL, /* X */
+ OPCODE_KIL_NV, /* X */
+ OPCODE_LG2, /* X X 2 X */
+ OPCODE_LIT, /* X X X X */
+ OPCODE_LOG, /* X X X */
+ OPCODE_LRP, /* X X */
+ OPCODE_MAD, /* X X X X */
+ OPCODE_MAX, /* X X X X */
+ OPCODE_MIN, /* X X X X */
+ OPCODE_MOV, /* X X X X */
+ OPCODE_MUL, /* X X X X */
+ OPCODE_PK2H, /* X */
+ OPCODE_PK2US, /* X */
+ OPCODE_PK4B, /* X */
+ OPCODE_PK4UB, /* X */
+ OPCODE_POW, /* X X X */
+ OPCODE_PRINT, /* X X */
+ OPCODE_RCC, /* 1.1 */
+ OPCODE_RCP, /* X X X X */
+ OPCODE_RFL, /* X X */
+ OPCODE_RSQ, /* X X X X */
+ OPCODE_SCS, /* X */
+ OPCODE_SEQ, /* 2 X */
+ OPCODE_SFL, /* 2 X */
+ OPCODE_SGE, /* X X X X */
+ OPCODE_SGT, /* 2 X */
+ OPCODE_SIN, /* X 2 X */
+ OPCODE_SLE, /* 2 X */
+ OPCODE_SLT, /* X X X X */
+ OPCODE_SNE, /* 2 X */
+ OPCODE_STR, /* X 2 X */
+ OPCODE_SUB, /* X X 1.1 X */
+ OPCODE_SWZ, /* X X */
+ OPCODE_TEX, /* X X */
+ OPCODE_TXB, /* X */
+ OPCODE_TXD, /* X X */
+ OPCODE_TXP, /* X */
+ OPCODE_TXP_NV, /* X */
+ OPCODE_UP2H, /* X */
+ OPCODE_UP2US, /* X */
+ OPCODE_UP4B, /* X */
+ OPCODE_UP4UB, /* X */
+ OPCODE_X2D, /* X */
+ OPCODE_XPD, /* X X */
+#if 0
+ OPCODE_ARA, /* NV_vertex_program2 */
+ OPCODE_ARL_NV, /* NV_vertex_program2 */
+ OPCODE_ARR, /* NV_vertex_program2 */
+
+ OPCODE_SEQ, /* NV_vertex_program2 */
+ OPCODE_SFL, /* NV_vertex_program2 */
+ OPCODE_SGT, /* NV_vertex_program2 */
+ OPCODE_SLE, /* NV_vertex_program2 */
+ OPCODE_SNE, /* NV_vertex_program2 */
+ OPCODE_STR, /* NV_vertex_program2 */
+
+ OPCODE_SSG, /* NV_vertex_program2 */
+ OPCODE_COS, /* NV_vertex_program2 */
+ OPCODE_SIN, /* NV_vertex_program2 */
+
+ OPCODE_BRA, /* NV_vertex_program2 */
+ OPCODE_CAL, /* NV_vertex_program2 */
+ OPCODE_RET, /* NV_vertex_program2 */
+
+ OPCODE_PUSHA, /* NV_vertex_program3 */
+ OPCODE_POPA, /* NV_vertex_program3 */
+
+ OPCODE_TEX, /* NV_vertex_program3 */
+ OPCODE_TXB, /* NV_vertex_program3 */
+ OPCODE_TXL, /* NV_vertex_program3 */
+ OPCODE_TXP, /* NV_vertex_program3 */
+#endif
+ MAX_OPCODE
+};
+
+
+/**
+ * Instruction source register.
+ */
+struct prog_src_register
+{
+ GLuint File:4; /**< One of the PROGRAM_* register file values. */
+ GLint Index:9; /**< May be negative for relative addressing. */
+ GLuint Swizzle:12;
+ GLuint RelAddr:1;
+
+ /**
+ * \name Source register "sign" control.
+ *
+ * The ARB and NV extensions allow varrying degrees of control over the
+ * sign of the source vector components. These values allow enough control
+ * for all flavors of the extensions.
+ */
+ /*@{*/
+ /**
+ * Per-component negation for the SWZ instruction.
+ *
+ * \since
+ * ARB_vertex_program, ARB_fragment_program
+ */
+ GLuint NegateBase:4;
+
+ /**
+ * Take the component-wise absolute value.
+ *
+ * \since
+ * NV_fragment_program, NV_fragment_program_option, NV_vertex_program2,
+ * NV_vertex_program2_option.
+ */
+ GLuint Abs:1;
+
+ /**
+ * Take the component-wise negation. The negation occurs \b after the
+ * (optional) absolute value operation.
+ */
+ GLuint NegateAbs:1;
+ /*@}*/
+};
+
+
+/**
+ * Instruction destination register.
+ */
+struct prog_dst_register
+{
+ /**
+ * One of the PROGRAM_* register file values.
+ */
+ GLuint File:4;
+
+ GLuint Index:8;
+ GLuint WriteMask:4;
+
+ /**
+ * \name Conditional destination update control.
+ *
+ * \since
+ * NV_fragment_program, NV_fragment_program_option, NV_vertex_program2,
+ * NV_vertex_program2_option.
+ */
+ /*@{*/
+ /**
+ * Takes one of the 9 possible condition values (EQ, FL, GT, GE, LE, LT,
+ * NE, TR, or UN). Destination update is enabled if the matching
+ * (swizzled) condition code value passes. When a conditional update mask
+ * is not specified, this will be \c COND_TR.
+ */
+ GLuint CondMask:4;
+
+ /**
+ * Condition code swizzle value.
+ */
+ GLuint CondSwizzle:12;
+
+ /**
+ * Selects the condition code register to use for conditional destination
+ * update masking. In NV_fragmnet_program or NV_vertex_program2 mode, only
+ * condition code register 0 is available. In NV_vertex_program3 mode,
+ * condition code registers 0 and 1 are available.
+ */
+ GLuint CondSrc:1;
+ /*@}*/
+
+ GLuint pad:31;
+};
+
+
+/**
+ * Vertex/fragment program instruction.
+ */
+struct prog_instruction
+{
+ enum prog_opcode Opcode;
+#if FEATURE_MESA_program_debug
+ GLshort StringPos;
+#endif
+ /**
+ * Arbitrary data. Used for the PRINT, CAL, and BRA instructions.
+ */
+ void *Data;
+
+ struct prog_src_register SrcReg[3];
+ struct prog_dst_register DstReg;
+
+ /**
+ * Indicates that the instruction should update the condition code
+ * register.
+ *
+ * \since
+ * NV_fragment_program, NV_fragment_program_option, NV_vertex_program2,
+ * NV_vertex_program2_option.
+ */
+ GLuint CondUpdate:1;
+
+ /**
+ * If prog_instruction::cc_update is \c GL_TRUE, this value selects the
+ * condition code register that is to be updated.
+ *
+ * In GL_NV_fragment_program or GL_NV_vertex_program2 mode, only condition
+ * code register 0 is available. In GL_NV_vertex_program3 mode, condition code registers
+ * 0 and 1 are available.
+ *
+ * \since
+ * NV_fragment_program, NV_fragment_program_option, NV_vertex_program2,
+ * NV_vertex_program2_option.
+ */
+ GLuint CondDst:1;
+
+ /**
+ * Saturate each value of the vectored result to the range [0,1] or the
+ * range [-1,1]. \c SSAT mode (i.e., saturation to the range [-1,1]) is
+ * only available in NV_fragment_program2 mode.
+ *
+ * \since
+ * NV_fragment_program, NV_fragment_program_option, NV_vertex_program3.
+ */
+ GLuint Saturate:2;
+
+ /**
+ * Per-instruction selectable precision.
+ *
+ * \since
+ * NV_fragment_program, NV_fragment_program_option.
+ */
+ GLuint Precision:3;
+
+ /**
+ * \name Texture source controls.
+ *
+ * The texture source controls are only used with the \c TEX, \c TXD,
+ * \c TXL, and \c TXP instructions.
+ *
+ * \since
+ * ARB_fragment_program, NV_fragment_program, NV_vertex_program3.
+ */
+ /*@{*/
+ /**
+ * Source texture unit. OpenGL supports a maximum of 32 texture
+ * units.
+ */
+ GLuint TexSrcUnit:5;
+
+ /**
+ * Source texture target (e.g., GL_TEXTURE_1D, GL_TEXTURE_2D,
+ * GL_TEXTURE_3D, GL_TEXTURE_CUBE, GL_TEXTURE_RECTANGLE_ARB).
+ */
+ GLuint TexSrcTarget:3;
+ /*@}*/
+};
+
+
+extern void
+_mesa_init_instruction(struct prog_instruction *inst);
+
+
+#endif /* PROG_INSTRUCTION_H */