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
  27 #define R300_PFS_MAX_ALU_INST     64
  28 #define R300_PFS_MAX_TEX_INST     32
  29 #define R300_PFS_MAX_TEX_INDIRECT 4
  30 #define R300_PFS_NUM_TEMP_REGS    32
  31 #define R300_PFS_NUM_CONST_REGS   32
  32
  33 #define R500_PFS_MAX_INST         512
  34 #define R500_PFS_NUM_TEMP_REGS    128
  35 #define R500_PFS_NUM_CONST_REGS   256
  36
  37
  38 #define STATE_R300_WINDOW_DIMENSION (STATE_INTERNAL_DRIVER+0)
  39 #define STATE_R300_TEXRECT_FACTOR (STATE_INTERNAL_DRIVER+1)
  40
  41
  42 /**
  43  * Stores state that influences the compilation of a fragment program.
  44  */
  45 struct r300_fragment_program_external_state {
  46         struct {
  47                 /**
  48                  * If the sampler is used as a shadow sampler,
  49                  * this field is:
  50                  *  0 - GL_LUMINANCE
  51                  *  1 - GL_INTENSITY
  52                  *  2 - GL_ALPHA
  53                  * depending on the depth texture mode.
  54                  */
  55                 GLuint depth_texture_mode : 2;
  56
  57                 /**
  58                  * If the sampler is used as a shadow sampler,
  59                  * this field is (texture_compare_func - GL_NEVER).
  60                  * [e.g. if compare function is GL_LEQUAL, this field is 3]
  61                  *
  62                  * Otherwise, this field is 0.
  63                  */
  64                 GLuint texture_compare_func : 3;
  65         } unit[16];
  66 };
  67
  68
  69
  70 struct r300_fragment_program_node {
  71         int tex_offset; /**< first tex instruction */
  72         int tex_end; /**< last tex instruction, relative to tex_offset */
  73         int alu_offset; /**< first ALU instruction */
  74         int alu_end; /**< last ALU instruction, relative to alu_offset */
  75         int flags;
  76 };
  77
  78 /**
  79  * Stores an R300 fragment program in its compiled-to-hardware form.
  80  */
  81 struct r300_fragment_program_code {
  82         struct {
  83                 int length; /**< total # of texture instructions used */
  84                 GLuint inst[R300_PFS_MAX_TEX_INST];
  85         } tex;
  86
  87         struct {
  88                 int length; /**< total # of ALU instructions used */
  89                 struct {
  90                         GLuint inst0;
  91                         GLuint inst1;
  92                         GLuint inst2;
  93                         GLuint inst3;
  94                 } inst[R300_PFS_MAX_ALU_INST];
  95         } alu;
  96
  97         struct r300_fragment_program_node node[4];
  98         int cur_node;
  99         int first_node_has_tex;
 100
 101         /**
 102          * Remember which program register a given hardware constant
 103          * belongs to.
 104          */
 105         struct prog_src_register constant[R300_PFS_NUM_CONST_REGS];
 106         int const_nr;
 107
 108         int max_temp_idx;
 109 };
 110
 111
 112 struct r500_fragment_program_code {
 113         struct {
 114                 GLuint inst0;
 115                 GLuint inst1;
 116                 GLuint inst2;
 117                 GLuint inst3;
 118                 GLuint inst4;
 119                 GLuint inst5;
 120         } inst[R500_PFS_MAX_INST];
 121
 122         int inst_offset;
 123         int inst_end;
 124
 125         /**
 126          * Remember which program register a given hardware constant
 127          * belongs to.
 128          */
 129         struct prog_src_register constant[R500_PFS_NUM_CONST_REGS];
 130         int const_nr;
 131
 132         int max_temp_idx;
 133 };
 134
 135 struct rX00_fragment_program_code {
 136         union {
 137                 struct r300_fragment_program_code r300;
 138                 struct r500_fragment_program_code r500;
 139         } code;
 140
 141         GLboolean writes_depth;
 142
 143         /* attribute that we are sending the WPOS in */
 144         gl_frag_attrib wpos_attr;
 145         /* attribute that we are sending the fog coordinate in */
 146         gl_frag_attrib fog_attr;
 147 };
 148
 149
 150 #endif /* RADEON_CODE_H */