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 };
  64
  65 struct rc_constant {
  66         unsigned Type:2; /**< RC_CONSTANT_xxx */
  67         unsigned Size:3;
  68
  69         union {
  70                 unsigned External;
  71                 float Immediate[4];
  72                 unsigned State[2];
  73         } u;
  74 };
  75
  76 struct rc_constant_list {
  77         struct rc_constant * Constants;
  78         unsigned Count;
  79
  80         unsigned _Reserved;
  81 };
  82
  83 void rc_constants_init(struct rc_constant_list * c);
  84 void rc_constants_copy(struct rc_constant_list * dst, struct rc_constant_list * src);
  85 void rc_constants_destroy(struct rc_constant_list * c);
  86 unsigned rc_constants_add(struct rc_constant_list * c, struct rc_constant * constant);
  87 unsigned rc_constants_add_state(struct rc_constant_list * c, unsigned state1, unsigned state2);
  88 unsigned rc_constants_add_immediate_vec4(struct rc_constant_list * c, const float * data);
  89 unsigned rc_constants_add_immediate_scalar(struct rc_constant_list * c, float data, unsigned * swizzle);
  90
  91 /**
  92  * Stores state that influences the compilation of a fragment program.
  93  */
  94 struct r300_fragment_program_external_state {
  95         struct {
  96                 /**
  97                  * If the sampler is used as a shadow sampler,
  98                  * this field is:
  99                  *  0 - GL_LUMINANCE
 100                  *  1 - GL_INTENSITY
 101                  *  2 - GL_ALPHA
 102                  * depending on the depth texture mode.
 103                  */
 104                 unsigned depth_texture_mode : 2;
 105
 106                 /**
 107                  * If the sampler is used as a shadow sampler,
 108                  * this field is (texture_compare_func - GL_NEVER).
 109                  * [e.g. if compare function is GL_LEQUAL, this field is 3]
 110                  *
 111                  * Otherwise, this field is 0.
 112                  */
 113                 unsigned texture_compare_func : 3;
 114         } unit[16];
 115 };
 116
 117
 118
 119 struct r300_fragment_program_node {
 120         int tex_offset; /**< first tex instruction */
 121         int tex_end; /**< last tex instruction, relative to tex_offset */
 122         int alu_offset; /**< first ALU instruction */
 123         int alu_end; /**< last ALU instruction, relative to alu_offset */
 124         int flags;
 125 };
 126
 127 /**
 128  * Stores an R300 fragment program in its compiled-to-hardware form.
 129  */
 130 struct r300_fragment_program_code {
 131         struct {
 132                 int length; /**< total # of texture instructions used */
 133                 uint32_t inst[R300_PFS_MAX_TEX_INST];
 134         } tex;
 135
 136         struct {
 137                 int length; /**< total # of ALU instructions used */
 138                 struct {
 139                         uint32_t inst0;
 140                         uint32_t inst1;
 141                         uint32_t inst2;
 142                         uint32_t inst3;
 143                 } inst[R300_PFS_MAX_ALU_INST];
 144         } alu;
 145
 146         struct r300_fragment_program_node node[4];
 147         int cur_node;
 148         int first_node_has_tex;
 149
 150         int max_temp_idx;
 151 };
 152
 153
 154 struct r500_fragment_program_code {
 155         struct {
 156                 uint32_t inst0;
 157                 uint32_t inst1;
 158                 uint32_t inst2;
 159                 uint32_t inst3;
 160                 uint32_t inst4;
 161                 uint32_t inst5;
 162         } inst[R500_PFS_MAX_INST];
 163
 164         int inst_offset;
 165         int inst_end;
 166
 167         int max_temp_idx;
 168 };
 169
 170 struct rX00_fragment_program_code {
 171         union {
 172                 struct r300_fragment_program_code r300;
 173                 struct r500_fragment_program_code r500;
 174         } code;
 175
 176         unsigned writes_depth:1;
 177
 178         struct rc_constant_list constants;
 179 };
 180
 181
 182 #define VSF_MAX_FRAGMENT_LENGTH (255*4)
 183 #define VSF_MAX_FRAGMENT_TEMPS (14)
 184
 185 #define VSF_MAX_INPUTS 32
 186 #define VSF_MAX_OUTPUTS 32
 187
 188 struct r300_vertex_program_code {
 189         int length;
 190         union {
 191                 uint32_t d[VSF_MAX_FRAGMENT_LENGTH];
 192                 float f[VSF_MAX_FRAGMENT_LENGTH];
 193         } body;
 194
 195         int pos_end;
 196         int num_temporaries;    /* Number of temp vars used by program */
 197         int inputs[VSF_MAX_INPUTS];
 198         int outputs[VSF_MAX_OUTPUTS];
 199
 200         struct rc_constant_list constants;
 201
 202         uint32_t InputsRead;
 203         uint32_t OutputsWritten;
 204 };
 205
 206 void r300_vertex_program_dump(struct r300_vertex_program_code * vs);
 207
 208 #endif /* RADEON_CODE_H */