src/gallium/drivers/r300/r300_context.h

   1 /*
   2  * Copyright 2008 Corbin Simpson <MostAwesomeDude@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 R300_CONTEXT_H
  24 #define R300_CONTEXT_H
  25
  26 #include "draw/draw_context.h"
  27 #include "draw/draw_vertex.h"
  28 #include "pipe/p_context.h"
  29 #include "tgsi/tgsi_scan.h"
  30 #include "util/u_memory.h"
  31
  32 #include "r300_clear.h"
  33 #include "r300_screen.h"
  34 #include "r300_winsys.h"
  35
  36 struct r300_blend_state {
  37     uint32_t blend_control;       /* R300_RB3D_CBLEND: 0x4e04 */
  38     uint32_t alpha_blend_control; /* R300_RB3D_ABLEND: 0x4e08 */
  39     uint32_t rop;                 /* R300_RB3D_ROPCNTL: 0x4e18 */
  40     uint32_t dither;              /* R300_RB3D_DITHER_CTL: 0x4e50 */
  41 };
  42
  43 struct r300_blend_color_state {
  44     /* RV515 and earlier */
  45     uint32_t blend_color;            /* R300_RB3D_BLEND_COLOR: 0x4e10 */
  46     /* R520 and newer */
  47     uint32_t blend_color_red_alpha;  /* R500_RB3D_CONSTANT_COLOR_AR: 0x4ef8 */
  48     uint32_t blend_color_green_blue; /* R500_RB3D_CONSTANT_COLOR_GB: 0x4efc */
  49 };
  50
  51 struct r300_dsa_state {
  52     uint32_t alpha_function;    /* R300_FG_ALPHA_FUNC: 0x4bd4 */
  53     uint32_t alpha_reference;   /* R500_FG_ALPHA_VALUE: 0x4be0 */
  54     uint32_t z_buffer_control;  /* R300_ZB_CNTL: 0x4f00 */
  55     uint32_t z_stencil_control; /* R300_ZB_ZSTENCILCNTL: 0x4f04 */
  56     uint32_t stencil_ref_mask;  /* R300_ZB_STENCILREFMASK: 0x4f08 */
  57     uint32_t z_buffer_top;      /* R300_ZB_ZTOP: 0x4f14 */
  58     uint32_t stencil_ref_bf;    /* R500_ZB_STENCILREFMASK_BF: 0x4fd4 */
  59 };
  60
  61 struct r300_rs_state {
  62     /* XXX icky as fucking hell */
  63     struct pipe_rasterizer_state rs;
  64
  65     uint32_t vap_control_status;    /* R300_VAP_CNTL_STATUS: 0x2140 */
  66     uint32_t point_size;            /* R300_GA_POINT_SIZE: 0x421c */
  67     uint32_t point_minmax;          /* R300_GA_POINT_MINMAX: 0x4230 */
  68     uint32_t line_control;          /* R300_GA_LINE_CNTL: 0x4234 */
  69     uint32_t depth_scale_front;  /* R300_SU_POLY_OFFSET_FRONT_SCALE: 0x42a4 */
  70     uint32_t depth_offset_front;/* R300_SU_POLY_OFFSET_FRONT_OFFSET: 0x42a8 */
  71     uint32_t depth_scale_back;    /* R300_SU_POLY_OFFSET_BACK_SCALE: 0x42ac */
  72     uint32_t depth_offset_back;  /* R300_SU_POLY_OFFSET_BACK_OFFSET: 0x42b0 */
  73     uint32_t polygon_offset_enable; /* R300_SU_POLY_OFFSET_ENABLE: 0x42b4 */
  74     uint32_t cull_mode;             /* R300_SU_CULL_MODE: 0x42b8 */
  75     uint32_t line_stipple_config;   /* R300_GA_LINE_STIPPLE_CONFIG: 0x4328 */
  76     uint32_t line_stipple_value;    /* R300_GA_LINE_STIPPLE_VALUE: 0x4260 */
  77 };
  78
  79 struct r300_rs_block {
  80     uint32_t ip[8]; /* R300_RS_IP_[0-7], R500_RS_IP_[0-7] */
  81     uint32_t count; /* R300_RS_COUNT */
  82     uint32_t inst_count; /* R300_RS_INST_COUNT */
  83     uint32_t inst[8]; /* R300_RS_INST_[0-7] */
  84 };
  85
  86 struct r300_sampler_state {
  87     uint32_t filter0;      /* R300_TX_FILTER0: 0x4400 */
  88     uint32_t filter1;      /* R300_TX_FILTER1: 0x4440 */
  89     uint32_t border_color; /* R300_TX_BORDER_COLOR: 0x45c0 */
  90 };
  91
  92 struct r300_scissor_state {
  93     uint32_t scissor_top_left;     /* R300_SC_SCISSORS_TL: 0x43e0 */
  94     uint32_t scissor_bottom_right; /* R300_SC_SCISSORS_BR: 0x43e4 */
  95 };
  96
  97 struct r300_texture_state {
  98 };
  99
 100 #define R300_NEW_BLEND           0x0000001
 101 #define R300_NEW_BLEND_COLOR     0x0000002
 102 #define R300_NEW_CONSTANTS       0x0000004
 103 #define R300_NEW_DSA             0x0000008
 104 #define R300_NEW_FRAMEBUFFERS    0x0000010
 105 #define R300_NEW_FRAGMENT_SHADER 0x0000020
 106 #define R300_NEW_RASTERIZER      0x0000040
 107 #define R300_NEW_RS_BLOCK        0x0000080
 108 #define R300_NEW_SAMPLER         0x0000100
 109 #define R300_NEW_SCISSOR         0x0010000
 110 #define R300_NEW_TEXTURE         0x0020000
 111 #define R300_NEW_VERTEX_FORMAT   0x2000000
 112 #define R300_NEW_VERTEX_SHADER   0x4000000
 113 #define R300_NEW_KITCHEN_SINK    0x7ffffff
 114
 115 /* The next several objects are not pure Radeon state; they inherit from
 116  * various Gallium classes. */
 117
 118 struct r300_constant_buffer {
 119     /* Buffer of constants */
 120     /* XXX first number should be raised */
 121     float constants[8][4];
 122     /* Number of user-defined constants */
 123     int user_count;
 124     /* Total number of constants */
 125     int count;
 126 };
 127
 128 struct r3xx_fragment_shader {
 129     /* Parent class */
 130     struct pipe_shader_state state;
 131     struct tgsi_shader_info info;
 132
 133     /* Has this shader been translated yet? */
 134     boolean translated;
 135
 136     /* Pixel stack size */
 137     int stack_size;
 138 };
 139
 140 struct r300_fragment_shader {
 141     /* Parent class */
 142     struct r3xx_fragment_shader shader;
 143
 144     /* Number of ALU instructions */
 145     int alu_instruction_count;
 146
 147     /* Number of texture instructions */
 148     int tex_instruction_count;
 149
 150     /* Number of texture indirections */
 151     int indirections;
 152
 153     /* Indirection node offsets */
 154     int offset0;
 155     int offset1;
 156     int offset2;
 157     int offset3;
 158
 159     /* Machine instructions */
 160     struct {
 161         uint32_t alu_rgb_inst;
 162         uint32_t alu_rgb_addr;
 163         uint32_t alu_alpha_inst;
 164         uint32_t alu_alpha_addr;
 165     } instructions[64]; /* XXX magic num */
 166 };
 167
 168 struct r500_fragment_shader {
 169     /* Parent class */
 170     struct r3xx_fragment_shader shader;
 171
 172     /* Number of used instructions */
 173     int instruction_count;
 174
 175     /* Machine instructions */
 176     struct {
 177         uint32_t inst0;
 178         uint32_t inst1;
 179         uint32_t inst2;
 180         uint32_t inst3;
 181         uint32_t inst4;
 182         uint32_t inst5;
 183     } instructions[256]; /*< XXX magic number */
 184 };
 185
 186 struct r300_texture {
 187     /* Parent class */
 188     struct pipe_texture tex;
 189
 190     /* Offsets into the buffer. */
 191     unsigned offset[PIPE_MAX_TEXTURE_LEVELS];
 192
 193     /* Stride (pitch?) of this texture in bytes */
 194     unsigned stride;
 195
 196     /* Total size of this texture, in bytes. */
 197     unsigned size;
 198
 199     /* Pipe buffer backing this texture. */
 200     struct pipe_buffer* buffer;
 201 };
 202
 203 struct r300_vertex_format {
 204     /* Parent class */
 205     struct vertex_info vinfo;
 206     /* R300_VAP_PROG_STREAK_CNTL_[0-7] */
 207     uint32_t vap_prog_stream_cntl[8];
 208     /* R300_VAP_PROG_STREAK_CNTL_EXT_[0-7] */
 209     uint32_t vap_prog_stream_cntl_ext[8];
 210 };
 211
 212 struct r300_context {
 213     /* Parent class */
 214     struct pipe_context context;
 215
 216     /* The interface to the windowing system, etc. */
 217     struct r300_winsys* winsys;
 218     /* Draw module. Used mostly for SW TCL. */
 219     struct draw_context* draw;
 220
 221     /* Various CSO state objects. */
 222     /* Blend state. */
 223     struct r300_blend_state* blend_state;
 224     /* Blend color state. */
 225     struct r300_blend_color_state* blend_color_state;
 226     /* Shader constants. */
 227     struct r300_constant_buffer shader_constants[PIPE_SHADER_TYPES];
 228     /* Depth, stencil, and alpha state. */
 229     struct r300_dsa_state* dsa_state;
 230     /* Fragment shader. */
 231     struct r3xx_fragment_shader* fs;
 232     /* Framebuffer state. We currently don't need our own version of this. */
 233     struct pipe_framebuffer_state framebuffer_state;
 234     /* Rasterizer state. */
 235     struct r300_rs_state* rs_state;
 236     /* RS block state. */
 237     struct r300_rs_block* rs_block;
 238     /* Sampler states. */
 239     struct r300_sampler_state* sampler_states[8];
 240     int sampler_count;
 241     /* Scissor state. */
 242     struct r300_scissor_state* scissor_state;
 243     /* Texture states. */
 244     struct r300_texture* textures[8];
 245     struct r300_texture_state* texture_states[8];
 246     int texture_count;
 247     /* Vertex buffers. */
 248     struct pipe_vertex_buffer vertex_buffers[PIPE_MAX_ATTRIBS];
 249     int vertex_buffer_count;
 250     /* Vertex information. */
 251     struct r300_vertex_format vertex_info;
 252     /* Bitmask of dirty state objects. */
 253     uint32_t dirty_state;
 254     /* Flag indicating whether or not the HW is dirty. */
 255     uint32_t dirty_hw;
 256 };
 257
 258 /* Convenience cast wrapper. */
 259 static struct r300_context* r300_context(struct pipe_context* context) {
 260     return (struct r300_context*)context;
 261 }
 262
 263 /* Context initialization. */
 264 struct draw_stage* r300_draw_swtcl_stage(struct r300_context* r300);
 265 void r300_init_state_functions(struct r300_context* r300);
 266 void r300_init_surface_functions(struct r300_context* r300);
 267
 268 /* Fun with includes: r300_winsys also declares this prototype.
 269  * We'll just step out in that case... */
 270 #ifndef R300_WINSYS_H
 271 struct pipe_context* r300_create_context(struct pipe_screen* screen,
 272                                          struct r300_winsys* r300_winsys);
 273 #endif
 274
 275 #endif /* R300_CONTEXT_H */