src/mesa/drivers/dri/r300/compiler/radeon_code.h

   1 /*
   2  * Copyright 2009 Nicolai Hähnle <nhaehnle@gmail.com>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
  22
  23 #ifndef RADEON_CODE_H
  24 #define RADEON_CODE_H
  25
  26 #include <stdint.h>
  27
  28 #define R300_PFS_MAX_ALU_INST     64
  29 #define R300_PFS_MAX_TEX_INST     32
  30 #define R300_PFS_MAX_TEX_INDIRECT 4
  31 #define R300_PFS_NUM_TEMP_REGS    32
  32 #define R300_PFS_NUM_CONST_REGS   32
  33
  34 #define R500_PFS_MAX_INST         512
  35 #define R500_PFS_NUM_TEMP_REGS    128
  36 #define R500_PFS_NUM_CONST_REGS   256
  37
  38
  39 #define STATE_R300_WINDOW_DIMENSION (STATE_INTERNAL_DRIVER+0)
  40
  41 enum {
  42         /**
  43          * External constants are constants whose meaning is unknown to this
  44          * compiler. For example, a Mesa gl_program's constants are turned
  45          * into external constants.
  46          */
  47         RC_CONSTANT_EXTERNAL = 0,
  48
  49         RC_CONSTANT_IMMEDIATE,
  50
  51         /**
  52          * Constant referring to state that is known by this compiler,
  53          * see RC_STATE_xxx, i.e. *not* arbitrary Mesa (or other) state.
  54          */
  55         RC_CONSTANT_STATE
  56 };
  57
  58 enum {
  59         RC_STATE_SHADOW_AMBIENT = 0,
  60
  61         RC_STATE_R300_WINDOW_DIMENSION,
  62         RC_STATE_R300_TEXRECT_FACTOR,
  63         RC_STATE_R300_VIEWPORT_SCALE,
  64         RC_STATE_R300_VIEWPORT_OFFSET
  65 };
  66
  67 struct rc_constant {
  68         unsigned Type:2; /**< RC_CONSTANT_xxx */
  69         unsigned Size:3;
  70
  71         union {
  72                 unsigned External;
  73                 float Immediate[4];
  74                 unsigned State[2];
  75         } u;
  76 };
  77
  78 struct rc_constant_list {
  79         struct rc_constant * Constants;
  80         unsigned Count;
  81
  82         unsigned _Reserved;
  83 };
  84
  85 void rc_constants_init(struct rc_constant_list * c);
  86 void rc_constants_copy(struct rc_constant_list * dst, struct rc_constant_list * src);
  87 void rc_constants_destroy(struct rc_constant_list * c);
  88 unsigned rc_constants_add(struct rc_constant_list * c, struct rc_constant * constant);
  89 unsigned rc_constants_add_state(struct rc_constant_list * c, unsigned state1, unsigned state2);
  90 unsigned rc_constants_add_immediate_vec4(struct rc_constant_list * c, const float * data);
  91 unsigned rc_constants_add_immediate_scalar(struct rc_constant_list * c, float data, unsigned * swizzle);
  92
  93 /**
  94  * Compare functions.
  95  *
  96  * \note By design, RC_COMPARE_FUNC_xxx + GL_NEVER gives you
  97  * the correct GL compare function.
  98  */
  99 typedef enum {
 100         RC_COMPARE_FUNC_NEVER = 0,
 101         RC_COMPARE_FUNC_LESS,
 102         RC_COMPARE_FUNC_EQUAL,
 103         RC_COMPARE_FUNC_LEQUAL,
 104         RC_COMPARE_FUNC_GREATER,
 105         RC_COMPARE_FUNC_NOTEQUAL,
 106         RC_COMPARE_FUNC_GEQUAL,
 107         RC_COMPARE_FUNC_ALWAYS
 108 } rc_compare_func;
 109
 110 /**
 111  * Stores state that influences the compilation of a fragment program.
 112  */
 113 struct r300_fragment_program_external_state {
 114         struct {
 115                 /**
 116                  * If the sampler is used as a shadow sampler,
 117                  * this field is:
 118                  *  0 - GL_LUMINANCE
 119                  *  1 - GL_INTENSITY
 120                  *  2 - GL_ALPHA
 121                  * depending on the depth texture mode.
 122                  */
 123                 unsigned depth_texture_mode : 2;
 124
 125                 /**
 126                  * If the sampler is used as a shadow sampler,
 127                  * this field specifies the compare function.
 128                  *
 129                  * Otherwise, this field is \ref RC_COMPARE_FUNC_NEVER (aka 0).
 130                  *
 131                  * Otherwise, this field is 0.
 132                  * \sa rc_compare_func
 133                  */
 134                 unsigned texture_compare_func : 3;
 135         } unit[16];
 136 };
 137
 138
 139
 140 struct r300_fragment_program_node {
 141         int tex_offset; /**< first tex instruction */
 142         int tex_end; /**< last tex instruction, relative to tex_offset */
 143         int alu_offset; /**< first ALU instruction */
 144         int alu_end; /**< last ALU instruction, relative to alu_offset */
 145         int flags;
 146 };
 147
 148 /**
 149  * Stores an R300 fragment program in its compiled-to-hardware form.
 150  */
 151 struct r300_fragment_program_code {
 152         struct {
 153                 int length; /**< total # of texture instructions used */
 154                 uint32_t inst[R300_PFS_MAX_TEX_INST];
 155         } tex;
 156
 157         struct {
 158                 int length; /**< total # of ALU instructions used */
 159                 struct {
 160                         uint32_t rgb_inst;
 161                         uint32_t rgb_addr;
 162                         uint32_t alpha_inst;
 163                         uint32_t alpha_addr;
 164                 } inst[R300_PFS_MAX_ALU_INST];
 165         } alu;
 166
 167         uint32_t config; /* US_CONFIG */
 168         uint32_t pixsize; /* US_PIXSIZE */
 169         uint32_t code_offset; /* US_CODE_OFFSET */
 170         uint32_t code_addr[4]; /* US_CODE_ADDR */
 171 };
 172
 173
 174 struct r500_fragment_program_code {
 175         struct {
 176                 uint32_t inst0;
 177                 uint32_t inst1;
 178                 uint32_t inst2;
 179                 uint32_t inst3;
 180                 uint32_t inst4;
 181                 uint32_t inst5;
 182         } inst[R500_PFS_MAX_INST];
 183
 184         int inst_end; /* Number of instructions - 1; also, last instruction to be executed */
 185
 186         int max_temp_idx;
 187
 188         uint32_t us_fc_ctrl;
 189 };
 190
 191 struct rX00_fragment_program_code {
 192         union {
 193                 struct r300_fragment_program_code r300;
 194                 struct r500_fragment_program_code r500;
 195         } code;
 196
 197         unsigned writes_depth:1;
 198
 199         struct rc_constant_list constants;
 200 };
 201
 202
 203 #define VSF_MAX_FRAGMENT_LENGTH (255*4)
 204 #define VSF_MAX_FRAGMENT_TEMPS (14)
 205
 206 #define VSF_MAX_INPUTS 32
 207 #define VSF_MAX_OUTPUTS 32
 208
 209 struct r300_vertex_program_code {
 210         int length;
 211         union {
 212                 uint32_t d[VSF_MAX_FRAGMENT_LENGTH];
 213                 float f[VSF_MAX_FRAGMENT_LENGTH];
 214         } body;
 215
 216         int pos_end;
 217         int num_temporaries;    /* Number of temp vars used by program */
 218         int inputs[VSF_MAX_INPUTS];
 219         int outputs[VSF_MAX_OUTPUTS];
 220
 221         struct rc_constant_list constants;
 222
 223         uint32_t InputsRead;
 224         uint32_t OutputsWritten;
 225 };
 226
 227 void r300_vertex_program_dump(struct r300_vertex_program_code * vs);
 228
 229 #endif /* RADEON_CODE_H */
 230