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 #define R300_PFS_MAX_ALU_INST     64
  27 #define R300_PFS_MAX_TEX_INST     32
  28 #define R300_PFS_MAX_TEX_INDIRECT 4
  29 #define R300_PFS_NUM_TEMP_REGS    32
  30 #define R300_PFS_NUM_CONST_REGS   32
  31
  32 #define R500_PFS_MAX_INST         512
  33 #define R500_PFS_NUM_TEMP_REGS    128
  34 #define R500_PFS_NUM_CONST_REGS   256
  35
  36
  37 #define STATE_R300_WINDOW_DIMENSION (STATE_INTERNAL_DRIVER+0)
  38
  39 enum {
  40         /**
  41          * External constants are constants whose meaning is unknown to this
  42          * compiler. For example, a Mesa gl_program's constants are turned
  43          * into external constants.
  44          */
  45         RC_CONSTANT_EXTERNAL = 0,
  46
  47         RC_CONSTANT_IMMEDIATE,
  48
  49         /**
  50          * Constant referring to state that is known by this compiler,
  51          * see RC_STATE_xxx, i.e. *not* arbitrary Mesa (or other) state.
  52          */
  53         RC_CONSTANT_STATE
  54 };
  55
  56 enum {
  57         RC_STATE_SHADOW_AMBIENT = 0,
  58
  59         RC_STATE_R300_WINDOW_DIMENSION,
  60         RC_STATE_R300_TEXRECT_FACTOR
  61 };
  62
  63 struct rc_constant {
  64         unsigned Type:2; /**< RC_CONSTANT_xxx */
  65         unsigned Size:3;
  66
  67         union {
  68                 unsigned External;
  69                 float Immediate[4];
  70                 unsigned State[2];
  71         } u;
  72 };
  73
  74 struct rc_constant_list {
  75         struct rc_constant * Constants;
  76         unsigned Count;
  77
  78         unsigned _Reserved;
  79 };
  80
  81 void rc_constants_init(struct rc_constant_list * c);
  82 void rc_constants_copy(struct rc_constant_list * dst, struct rc_constant_list * src);
  83 void rc_constants_destroy(struct rc_constant_list * c);
  84 unsigned rc_constants_add(struct rc_constant_list * c, struct rc_constant * constant);
  85 unsigned rc_constants_add_state(struct rc_constant_list * c, unsigned state1, unsigned state2);
  86 unsigned rc_constants_add_immediate_vec4(struct rc_constant_list * c, const float * data);
  87 unsigned rc_constants_add_immediate_scalar(struct rc_constant_list * c, float data, unsigned * swizzle);
  88
  89 /**
  90  * Stores state that influences the compilation of a fragment program.
  91  */
  92 struct r300_fragment_program_external_state {
  93         struct {
  94                 /**
  95                  * If the sampler is used as a shadow sampler,
  96                  * this field is:
  97                  *  0 - GL_LUMINANCE
  98                  *  1 - GL_INTENSITY
  99                  *  2 - GL_ALPHA
 100                  * depending on the depth texture mode.
 101                  */
 102                 GLuint depth_texture_mode : 2;
 103
 104                 /**
 105                  * If the sampler is used as a shadow sampler,
 106                  * this field is (texture_compare_func - GL_NEVER).
 107                  * [e.g. if compare function is GL_LEQUAL, this field is 3]
 108                  *
 109                  * Otherwise, this field is 0.
 110                  */
 111                 GLuint texture_compare_func : 3;
 112         } unit[16];
 113 };
 114
 115
 116
 117 struct r300_fragment_program_node {
 118         int tex_offset; /**< first tex instruction */
 119         int tex_end; /**< last tex instruction, relative to tex_offset */
 120         int alu_offset; /**< first ALU instruction */
 121         int alu_end; /**< last ALU instruction, relative to alu_offset */
 122         int flags;
 123 };
 124
 125 /**
 126  * Stores an R300 fragment program in its compiled-to-hardware form.
 127  */
 128 struct r300_fragment_program_code {
 129         struct {
 130                 int length; /**< total # of texture instructions used */
 131                 GLuint inst[R300_PFS_MAX_TEX_INST];
 132         } tex;
 133
 134         struct {
 135                 int length; /**< total # of ALU instructions used */
 136                 struct {
 137                         GLuint inst0;
 138                         GLuint inst1;
 139                         GLuint inst2;
 140                         GLuint inst3;
 141                 } inst[R300_PFS_MAX_ALU_INST];
 142         } alu;
 143
 144         struct r300_fragment_program_node node[4];
 145         int cur_node;
 146         int first_node_has_tex;
 147
 148         int max_temp_idx;
 149 };
 150
 151
 152 struct r500_fragment_program_code {
 153         struct {
 154                 GLuint inst0;
 155                 GLuint inst1;
 156                 GLuint inst2;
 157                 GLuint inst3;
 158                 GLuint inst4;
 159                 GLuint inst5;
 160         } inst[R500_PFS_MAX_INST];
 161
 162         int inst_offset;
 163         int inst_end;
 164
 165         int max_temp_idx;
 166 };
 167
 168 struct rX00_fragment_program_code {
 169         union {
 170                 struct r300_fragment_program_code r300;
 171                 struct r500_fragment_program_code r500;
 172         } code;
 173
 174         GLboolean writes_depth;
 175
 176         struct rc_constant_list constants;
 177 };
 178
 179
 180 #define VSF_MAX_FRAGMENT_LENGTH (255*4)
 181 #define VSF_MAX_FRAGMENT_TEMPS (14)
 182
 183 struct r300_vertex_program_code {
 184         int length;
 185         union {
 186                 GLuint d[VSF_MAX_FRAGMENT_LENGTH];
 187                 float f[VSF_MAX_FRAGMENT_LENGTH];
 188         } body;
 189
 190         int pos_end;
 191         int num_temporaries;    /* Number of temp vars used by program */
 192         int inputs[VERT_ATTRIB_MAX];
 193         int outputs[VERT_RESULT_MAX];
 194
 195         struct rc_constant_list constants;
 196
 197         GLbitfield InputsRead;
 198         GLbitfield OutputsWritten;
 199 };
 200
 201 #endif /* RADEON_CODE_H */