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authorKeith Whitwell <keith@tungstengraphics.com>2005-06-08 10:02:28 +0000
committerKeith Whitwell <keith@tungstengraphics.com>2005-06-08 10:02:28 +0000
commit7fb16836e71fd06363fe6a764ba07b949591c4ce (patch)
tree2d888542e575da040a8d9c38a021816094ab1f8a
parentd45cb9a83636e0e6c5800e247bc8b2899403d503 (diff)
new file
-rw-r--r--src/mesa/tnl/t_vb_arbprogram.h178
1 files changed, 178 insertions, 0 deletions
diff --git a/src/mesa/tnl/t_vb_arbprogram.h b/src/mesa/tnl/t_vb_arbprogram.h
new file mode 100644
index 0000000000..618a96c74e
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+++ b/src/mesa/tnl/t_vb_arbprogram.h
@@ -0,0 +1,178 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.3
+ *
+ * Copyright (C) 1999-2004 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 t_arb_program.c
+ * Compile vertex programs to an intermediate representation.
+ * Execute vertex programs over a buffer of vertices.
+ * \author Keith Whitwell, Brian Paul
+ */
+
+
+#ifndef _T_VB_ARBPROGRAM_H_
+#define _T_VB_ARBPROGRAM_H_
+
+
+/* New, internal instructions:
+ */
+#define RSW (VP_MAX_OPCODE)
+#define MSK (VP_MAX_OPCODE+1)
+#define REL (VP_MAX_OPCODE+2)
+
+
+/* Layout of register file:
+
+ 0 -- Scratch (Arg0)
+ 1 -- Scratch (Arg1)
+ 2 -- Scratch (Result)
+ 4 -- Program Temporary 0
+ 16 -- Program Temporary 12 (max for NV_VERTEX_PROGRAM)
+ 17 -- Output 0
+ 31 -- Output 15 (max for NV_VERTEX_PROGRAM) (Last writeable register)
+ 32 -- Parameter 0
+ ..
+ 127 -- Parameter 63 (max for NV_VERTEX_PROGRAM)
+
+*/
+
+#define FILE_REG 0
+#define FILE_LOCAL_PARAM 1
+#define FILE_ENV_PARAM 2
+#define FILE_STATE_PARAM 3
+
+
+#define REG_ARG0 0
+#define REG_ARG1 1
+#define REG_ARG2 2
+#define REG_RES 3
+#define REG_ADDR 4
+#define REG_TMP0 5
+#define REG_TMP11 16
+#define REG_OUT0 17
+#define REG_OUT14 31
+#define REG_IN0 32
+#define REG_IN15 47
+#define REG_ID 48 /* 0,0,0,1 */
+#define REG_MAX 128
+#define REG_INVALID ~0
+
+/* ARB_vp instructions are broken down into one or more of the
+ * following micro-instructions, each representable in a 32 bit packed
+ * structure.
+ */
+
+struct reg {
+ GLuint file:2;
+ GLuint idx:7;
+};
+
+
+union instruction {
+ struct {
+ GLuint opcode:6;
+ GLuint dst:5;
+ GLuint file0:2;
+ GLuint idx0:7;
+ GLuint file1:2;
+ GLuint idx1:7;
+ GLuint pad:3;
+ } alu;
+
+ struct {
+ GLuint opcode:6;
+ GLuint dst:5;
+ GLuint file0:2;
+ GLuint idx0:7;
+ GLuint neg:4;
+ GLuint swz:8; /* xyzw only */
+ } rsw;
+
+ struct {
+ GLuint opcode:6;
+ GLuint dst:5;
+ GLuint file:2;
+ GLuint idx:7;
+ GLuint mask:4;
+ GLuint pad:1;
+ } msk;
+
+ GLuint dword;
+};
+
+#define RSW_NOOP ((0<<0) | (1<<2) | (2<<4) | (3<<6))
+#define GET_RSW(swz, idx) (((swz) >> ((idx)*2)) & 0x3)
+
+
+
+struct compilation {
+ GLuint reg_active;
+ union instruction *csr;
+ struct vertex_buffer *VB; /* for input sizes! */
+};
+
+struct input {
+ GLuint idx;
+ GLfloat *data;
+ GLuint stride;
+ GLuint size;
+};
+
+struct output {
+ GLuint idx;
+ GLfloat *data;
+};
+
+/*--------------------------------------------------------------------------- */
+
+/*!
+ * Private storage for the vertex program pipeline stage.
+ */
+struct arb_vp_machine {
+ GLfloat reg[REG_MAX][4]; /* Program temporaries, inputs and outputs */
+ GLfloat (*File[4])[4]; /* All values reference-able from the program. */
+ GLint AddressReg;
+
+ struct input input[16];
+ GLuint nr_inputs;
+
+ struct output output[15];
+ GLuint nr_outputs;
+
+ union instruction store[1024];
+ union instruction *instructions;
+ GLint nr_instructions;
+
+ GLvector4f attribs[VERT_RESULT_MAX]; /**< result vectors. */
+ GLvector4f ndcCoords; /**< normalized device coords */
+ GLubyte *clipmask; /**< clip flags */
+ GLubyte ormask, andmask; /**< for clipping */
+
+ GLuint vtx_nr; /**< loop counter */
+
+ struct vertex_buffer *VB;
+ GLcontext *ctx;
+};
+
+
+#endif