1 /************************************************************************** 2 * 3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28 29 #ifndef I915_PROGRAM_H 30 #define I915_PROGRAM_H 31 32 #include "i915_context.h" 33 #include "i915_reg.h" 34 35 36 37 /* Having zero and one in here makes the definition of swizzle a lot 38 * easier. 39 */ 40 #define UREG_TYPE_SHIFT 29 41 #define UREG_NR_SHIFT 24 42 #define UREG_CHANNEL_X_NEGATE_SHIFT 23 43 #define UREG_CHANNEL_X_SHIFT 20 44 #define UREG_CHANNEL_Y_NEGATE_SHIFT 19 45 #define UREG_CHANNEL_Y_SHIFT 16 46 #define UREG_CHANNEL_Z_NEGATE_SHIFT 15 47 #define UREG_CHANNEL_Z_SHIFT 12 48 #define UREG_CHANNEL_W_NEGATE_SHIFT 11 49 #define UREG_CHANNEL_W_SHIFT 8 50 #define UREG_CHANNEL_ZERO_NEGATE_MBZ 5 51 #define UREG_CHANNEL_ZERO_SHIFT 4 52 #define UREG_CHANNEL_ONE_NEGATE_MBZ 1 53 #define UREG_CHANNEL_ONE_SHIFT 0 54 55 #define UREG_BAD 0xffffffff /* not a valid ureg */ 56 57 #define X SRC_X 58 #define Y SRC_Y 59 #define Z SRC_Z 60 #define W SRC_W 61 #define ZERO SRC_ZERO 62 #define ONE SRC_ONE 63 64 /* Construct a ureg: 65 */ 66 #define UREG( type, nr ) (((type)<< UREG_TYPE_SHIFT) | \ 67 ((nr) << UREG_NR_SHIFT) | \ 68 (X << UREG_CHANNEL_X_SHIFT) | \ 69 (Y << UREG_CHANNEL_Y_SHIFT) | \ 70 (Z << UREG_CHANNEL_Z_SHIFT) | \ 71 (W << UREG_CHANNEL_W_SHIFT) | \ 72 (ZERO << UREG_CHANNEL_ZERO_SHIFT) | \ 73 (ONE << UREG_CHANNEL_ONE_SHIFT)) 74 75 #define GET_CHANNEL_SRC( reg, channel ) ((reg<<(channel*4)) & (0xf<<20)) 76 #define CHANNEL_SRC( src, channel ) (src>>(channel*4)) 77 78 #define GET_UREG_TYPE(reg) (((reg)>>UREG_TYPE_SHIFT)®_TYPE_MASK) 79 #define GET_UREG_NR(reg) (((reg)>>UREG_NR_SHIFT)®_NR_MASK) 80 81 82 83 #define UREG_XYZW_CHANNEL_MASK 0x00ffff00 84 85 /* One neat thing about the UREG representation: 86 */ 87 static INLINE int 88 swizzle(int reg, int x, int y, int z, int w) 89 { 90 return ((reg & ~UREG_XYZW_CHANNEL_MASK) | 91 CHANNEL_SRC(GET_CHANNEL_SRC(reg, x), 0) | 92 CHANNEL_SRC(GET_CHANNEL_SRC(reg, y), 1) | 93 CHANNEL_SRC(GET_CHANNEL_SRC(reg, z), 2) | 94 CHANNEL_SRC(GET_CHANNEL_SRC(reg, w), 3)); 95 } 96 97 /* Another neat thing about the UREG representation: 98 */ 99 static INLINE int 100 negate(int reg, int x, int y, int z, int w) 101 { 102 return reg ^ (((x & 1) << UREG_CHANNEL_X_NEGATE_SHIFT) | 103 ((y & 1) << UREG_CHANNEL_Y_NEGATE_SHIFT) | 104 ((z & 1) << UREG_CHANNEL_Z_NEGATE_SHIFT) | 105 ((w & 1) << UREG_CHANNEL_W_NEGATE_SHIFT)); 106 } 107 108 109 extern GLuint i915_get_temp(struct i915_fragment_program *p); 110 extern GLuint i915_get_utemp(struct i915_fragment_program *p); 111 extern void i915_release_utemps(struct i915_fragment_program *p); 112 113 114 extern GLuint i915_emit_texld(struct i915_fragment_program *p, 115 GLuint live_regs, 116 GLuint dest, 117 GLuint destmask, 118 GLuint sampler, GLuint coord, GLuint op); 119 120 extern GLuint i915_emit_arith(struct i915_fragment_program *p, 121 GLuint op, 122 GLuint dest, 123 GLuint mask, 124 GLuint saturate, 125 GLuint src0, GLuint src1, GLuint src2); 126 127 extern GLuint i915_emit_decl(struct i915_fragment_program *p, 128 GLuint type, GLuint nr, GLuint d0_flags); 129 130 131 extern GLuint i915_emit_const1f(struct i915_fragment_program *p, GLfloat c0); 132 133 extern GLuint i915_emit_const2f(struct i915_fragment_program *p, 134 GLfloat c0, GLfloat c1); 135 136 extern GLuint i915_emit_const4fv(struct i915_fragment_program *p, 137 const GLfloat * c); 138 139 extern GLuint i915_emit_const4f(struct i915_fragment_program *p, 140 GLfloat c0, GLfloat c1, 141 GLfloat c2, GLfloat c3); 142 143 144 extern GLuint i915_emit_param4fv(struct i915_fragment_program *p, 145 const GLfloat * values); 146 147 extern void i915_program_error(struct i915_fragment_program *p, 148 const char *fmt, ...); 149 150 extern void i915_init_program(struct i915_context *i915, 151 struct i915_fragment_program *p); 152 153 extern void i915_upload_program(struct i915_context *i915, 154 struct i915_fragment_program *p); 155 156 extern void i915_fini_program(struct i915_fragment_program *p); 157 158 extern void i915_update_program(struct gl_context *ctx); 159 160 #endif 161
