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_vertex.h"
  27
  28 #include "util/u_blitter.h"
  29
  30 #include "pipe/p_context.h"
  31 #include "pipe/p_inlines.h"
  32
  33 struct r300_fragment_shader;
  34 struct r300_vertex_shader;
  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 color_channel_mask;  /* R300_RB3D_COLOR_CHANNEL_MASK: 0x4e0c */
  40     uint32_t rop;                 /* R300_RB3D_ROPCNTL: 0x4e18 */
  41     uint32_t dither;              /* R300_RB3D_DITHER_CTL: 0x4e50 */
  42 };
  43
  44 struct r300_blend_color_state {
  45     /* RV515 and earlier */
  46     uint32_t blend_color;            /* R300_RB3D_BLEND_COLOR: 0x4e10 */
  47     /* R520 and newer */
  48     uint32_t blend_color_red_alpha;  /* R500_RB3D_CONSTANT_COLOR_AR: 0x4ef8 */
  49     uint32_t blend_color_green_blue; /* R500_RB3D_CONSTANT_COLOR_GB: 0x4efc */
  50 };
  51
  52 struct r300_dsa_state {
  53     uint32_t alpha_function;    /* R300_FG_ALPHA_FUNC: 0x4bd4 */
  54     uint32_t alpha_reference;   /* R500_FG_ALPHA_VALUE: 0x4be0 */
  55     uint32_t z_buffer_control;  /* R300_ZB_CNTL: 0x4f00 */
  56     uint32_t z_stencil_control; /* R300_ZB_ZSTENCILCNTL: 0x4f04 */
  57     uint32_t stencil_ref_mask;  /* R300_ZB_STENCILREFMASK: 0x4f08 */
  58     uint32_t stencil_ref_bf;    /* R500_ZB_STENCILREFMASK_BF: 0x4fd4 */
  59 };
  60
  61 struct r300_rs_state {
  62     /* Draw-specific rasterizer state */
  63     struct pipe_rasterizer_state rs;
  64
  65     /* Whether or not to enable the VTE. This is referenced at the very
  66      * last moment during emission of VTE state, to decide whether or not
  67      * the VTE should be used for transformation. */
  68     boolean enable_vte;
  69
  70     uint32_t vap_control_status;    /* R300_VAP_CNTL_STATUS: 0x2140 */
  71     uint32_t point_size;            /* R300_GA_POINT_SIZE: 0x421c */
  72     uint32_t point_minmax;          /* R300_GA_POINT_MINMAX: 0x4230 */
  73     uint32_t line_control;          /* R300_GA_LINE_CNTL: 0x4234 */
  74     uint32_t depth_scale_front;  /* R300_SU_POLY_OFFSET_FRONT_SCALE: 0x42a4 */
  75     uint32_t depth_offset_front;/* R300_SU_POLY_OFFSET_FRONT_OFFSET: 0x42a8 */
  76     uint32_t depth_scale_back;    /* R300_SU_POLY_OFFSET_BACK_SCALE: 0x42ac */
  77     uint32_t depth_offset_back;  /* R300_SU_POLY_OFFSET_BACK_OFFSET: 0x42b0 */
  78     uint32_t polygon_offset_enable; /* R300_SU_POLY_OFFSET_ENABLE: 0x42b4 */
  79     uint32_t cull_mode;             /* R300_SU_CULL_MODE: 0x42b8 */
  80     uint32_t line_stipple_config;   /* R300_GA_LINE_STIPPLE_CONFIG: 0x4328 */
  81     uint32_t line_stipple_value;    /* R300_GA_LINE_STIPPLE_VALUE: 0x4260 */
  82     uint32_t color_control;         /* R300_GA_COLOR_CONTROL: 0x4278 */
  83     uint32_t polygon_mode;          /* R300_GA_POLY_MODE: 0x4288 */
  84 };
  85
  86 struct r300_rs_block {
  87     uint32_t ip[8]; /* R300_RS_IP_[0-7], R500_RS_IP_[0-7] */
  88     uint32_t count; /* R300_RS_COUNT */
  89     uint32_t inst_count; /* R300_RS_INST_COUNT */
  90     uint32_t inst[8]; /* R300_RS_INST_[0-7] */
  91 };
  92
  93 struct r300_sampler_state {
  94     uint32_t filter0;      /* R300_TX_FILTER0: 0x4400 */
  95     uint32_t filter1;      /* R300_TX_FILTER1: 0x4440 */
  96     uint32_t border_color; /* R300_TX_BORDER_COLOR: 0x45c0 */
  97
  98     /* Min/max LOD must be clamped to [0, last_level], thus
  99      * it's dependent on a currently bound texture */
 100     unsigned min_lod, max_lod;
 101 };
 102
 103 struct r300_scissor_regs {
 104     uint32_t top_left;     /* R300_SC_SCISSORS_TL: 0x43e0 */
 105     uint32_t bottom_right; /* R300_SC_SCISSORS_BR: 0x43e4 */
 106
 107     /* Whether everything is culled by scissoring. */
 108     boolean empty_area;
 109 };
 110
 111 struct r300_scissor_state {
 112     struct r300_scissor_regs framebuffer;
 113     struct r300_scissor_regs scissor;
 114 };
 115
 116 struct r300_texture_state {
 117     uint32_t format0; /* R300_TX_FORMAT0: 0x4480 */
 118     uint32_t format1; /* R300_TX_FORMAT1: 0x44c0 */
 119     uint32_t format2; /* R300_TX_FORMAT2: 0x4500 */
 120 };
 121
 122 struct r300_viewport_state {
 123     float xscale;         /* R300_VAP_VPORT_XSCALE:  0x2098 */
 124     float xoffset;        /* R300_VAP_VPORT_XOFFSET: 0x209c */
 125     float yscale;         /* R300_VAP_VPORT_YSCALE:  0x20a0 */
 126     float yoffset;        /* R300_VAP_VPORT_YOFFSET: 0x20a4 */
 127     float zscale;         /* R300_VAP_VPORT_ZSCALE:  0x20a8 */
 128     float zoffset;        /* R300_VAP_VPORT_ZOFFSET: 0x20ac */
 129     uint32_t vte_control; /* R300_VAP_VTE_CNTL:      0x20b0 */
 130 };
 131
 132 struct r300_ztop_state {
 133     uint32_t z_buffer_top;      /* R300_ZB_ZTOP: 0x4f14 */
 134 };
 135
 136 #define R300_NEW_BLEND           0x00000001
 137 #define R300_NEW_BLEND_COLOR     0x00000002
 138 #define R300_NEW_CLIP            0x00000004
 139 #define R300_NEW_DSA             0x00000008
 140 #define R300_NEW_FRAMEBUFFERS    0x00000010
 141 #define R300_NEW_FRAGMENT_SHADER 0x00000020
 142 #define R300_NEW_FRAGMENT_SHADER_CONSTANTS    0x00000040
 143 #define R300_NEW_RASTERIZER      0x00000080
 144 #define R300_NEW_RS_BLOCK        0x00000100
 145 #define R300_NEW_SAMPLER         0x00000200
 146 #define R300_ANY_NEW_SAMPLERS    0x0001fe00
 147 #define R300_NEW_SCISSOR         0x00020000
 148 #define R300_NEW_TEXTURE         0x00040000
 149 #define R300_ANY_NEW_TEXTURES    0x03fc0000
 150 #define R300_NEW_VERTEX_FORMAT   0x04000000
 151 #define R300_NEW_VERTEX_SHADER   0x08000000
 152 #define R300_NEW_VERTEX_SHADER_CONSTANTS    0x10000000
 153 #define R300_NEW_VIEWPORT        0x20000000
 154 #define R300_NEW_QUERY           0x40000000
 155 #define R300_NEW_KITCHEN_SINK    0x7fffffff
 156
 157 /* The next several objects are not pure Radeon state; they inherit from
 158  * various Gallium classes. */
 159
 160 struct r300_constant_buffer {
 161     /* Buffer of constants */
 162     /* XXX first number should be raised */
 163     float constants[32][4];
 164     /* Total number of constants */
 165     unsigned count;
 166 };
 167
 168 /* Query object.
 169  *
 170  * This is not a subclass of pipe_query because pipe_query is never
 171  * actually fully defined. So, rather than have it as a member, and do
 172  * subclass-style casting, we treat pipe_query as an opaque, and just
 173  * trust that our state tracker does not ever mess up query objects.
 174  */
 175 struct r300_query {
 176     /* The kind of query. Currently only OQ is supported. */
 177     unsigned type;
 178     /* Whether this query is currently active. Only active queries will
 179      * get emitted into the command stream, and only active queries get
 180      * tallied. */
 181     boolean active;
 182     /* The current count of this query. Required to be at least 32 bits. */
 183     unsigned int count;
 184     /* The offset of this query into the query buffer, in bytes. */
 185     unsigned offset;
 186     /* if we've flushed the query */
 187     boolean flushed;
 188     /* if begin has been emitted */
 189     boolean begin_emitted;
 190     /* Linked list members. */
 191     struct r300_query* prev;
 192     struct r300_query* next;
 193 };
 194
 195 struct r300_texture {
 196     /* Parent class */
 197     struct pipe_texture tex;
 198
 199     /* Offsets into the buffer. */
 200     unsigned offset[PIPE_MAX_TEXTURE_LEVELS];
 201
 202     /* A pitch for each mip-level */
 203     unsigned pitch[PIPE_MAX_TEXTURE_LEVELS];
 204
 205     /* Size of one zslice or face based on the texture target */
 206     unsigned layer_size[PIPE_MAX_TEXTURE_LEVELS];
 207
 208     /**
 209      * If non-zero, override the natural texture layout with
 210      * a custom stride (in bytes).
 211      *
 212      * \note Mipmapping fails for textures with a non-natural layout!
 213      *
 214      * \sa r300_texture_get_stride
 215      */
 216     unsigned stride_override;
 217
 218     /* Total size of this texture, in bytes. */
 219     unsigned size;
 220
 221     /* Whether this texture has non-power-of-two dimensions.
 222      * It can be either a regular texture or a rectangle one.
 223      */
 224     boolean is_npot;
 225
 226     /* Pipe buffer backing this texture. */
 227     struct pipe_buffer* buffer;
 228
 229     /* Registers carrying texture format data. */
 230     struct r300_texture_state state;
 231 };
 232
 233 struct r300_vertex_info {
 234     /* Parent class */
 235     struct vertex_info vinfo;
 236
 237     /* R300_VAP_PROG_STREAK_CNTL_[0-7] */
 238     uint32_t vap_prog_stream_cntl[8];
 239     /* R300_VAP_PROG_STREAK_CNTL_EXT_[0-7] */
 240     uint32_t vap_prog_stream_cntl_ext[8];
 241 };
 242
 243 extern struct pipe_viewport_state r300_viewport_identity;
 244
 245 struct r300_context {
 246     /* Parent class */
 247     struct pipe_context context;
 248
 249     /* The interface to the windowing system, etc. */
 250     struct radeon_winsys* winsys;
 251     /* Draw module. Used mostly for SW TCL. */
 252     struct draw_context* draw;
 253     /* Accelerated blit support. */
 254     struct blitter_context* blitter;
 255
 256     /* Vertex buffer for rendering. */
 257     struct pipe_buffer* vbo;
 258     /* Offset into the VBO. */
 259     size_t vbo_offset;
 260
 261     /* Occlusion query buffer. */
 262     struct pipe_buffer* oqbo;
 263     /* Query list. */
 264     struct r300_query *query_current;
 265     struct r300_query query_list;
 266
 267     /* Shader hash table. Used to store vertex formatting information, which
 268      * depends on the combination of both currently loaded shaders. */
 269     struct util_hash_table* shader_hash_table;
 270     /* Vertex formatting information. */
 271     struct r300_vertex_info* vertex_info;
 272
 273     /* Various CSO state objects. */
 274     /* Blend state. */
 275     struct r300_blend_state* blend_state;
 276     /* Blend color state. */
 277     struct r300_blend_color_state* blend_color_state;
 278     /* User clip planes. */
 279     struct pipe_clip_state clip_state;
 280     /* Shader constants. */
 281     struct r300_constant_buffer shader_constants[PIPE_SHADER_TYPES];
 282     /* Depth, stencil, and alpha state. */
 283     struct r300_dsa_state* dsa_state;
 284     /* Fragment shader. */
 285     struct r300_fragment_shader* fs;
 286     /* Framebuffer state. We currently don't need our own version of this. */
 287     struct pipe_framebuffer_state framebuffer_state;
 288     /* Rasterizer state. */
 289     struct r300_rs_state* rs_state;
 290     /* RS block state. */
 291     struct r300_rs_block* rs_block;
 292     /* Sampler states. */
 293     struct r300_sampler_state* sampler_states[8];
 294     int sampler_count;
 295     /* Scissor state. */
 296     struct r300_scissor_state* scissor_state;
 297     /* Texture states. */
 298     struct r300_texture* textures[8];
 299     int texture_count;
 300     /* Vertex shader. */
 301     struct r300_vertex_shader* vs;
 302     /* Viewport state. */
 303     struct r300_viewport_state* viewport_state;
 304     /* ZTOP state. */
 305     struct r300_ztop_state ztop_state;
 306
 307     /* Vertex buffers for Gallium. */
 308     struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
 309     int vertex_buffer_count;
 310     /* Vertex elements for Gallium. */
 311     struct pipe_vertex_element vertex_element[PIPE_MAX_ATTRIBS];
 312     int vertex_element_count;
 313
 314     /* Bitmask of dirty state objects. */
 315     uint32_t dirty_state;
 316     /* Flag indicating whether or not the HW is dirty. */
 317     uint32_t dirty_hw;
 318
 319     /** Combination of DBG_xxx flags */
 320     unsigned debug;
 321 };
 322
 323 /* Convenience cast wrapper. */
 324 static INLINE struct r300_context* r300_context(struct pipe_context* context)
 325 {
 326     return (struct r300_context*)context;
 327 }
 328
 329 /* Context initialization. */
 330 struct draw_stage* r300_draw_stage(struct r300_context* r300);
 331 void r300_init_state_functions(struct r300_context* r300);
 332 void r300_init_surface_functions(struct r300_context* r300);
 333
 334 /* Debug functionality. */
 335
 336 /**
 337  * Debug flags to disable/enable certain groups of debugging outputs.
 338  *
 339  * \note These may be rather coarse, and the grouping may be impractical.
 340  * If you find, while debugging the driver, that a different grouping
 341  * of these flags would be beneficial, just feel free to change them
 342  * but make sure to update the documentation in r300_debug.c to reflect
 343  * those changes.
 344  */
 345 /*@{*/
 346 #define DBG_HELP    0x0000001
 347 #define DBG_FP      0x0000002
 348 #define DBG_VP      0x0000004
 349 #define DBG_CS      0x0000008
 350 #define DBG_DRAW    0x0000010
 351 #define DBG_TEX     0x0000020
 352 #define DBG_FALL    0x0000040
 353 /*@}*/
 354
 355 static INLINE boolean DBG_ON(struct r300_context * ctx, unsigned flags)
 356 {
 357     return (ctx->debug & flags) ? TRUE : FALSE;
 358 }
 359
 360 static INLINE void DBG(struct r300_context * ctx, unsigned flags, const char * fmt, ...)
 361 {
 362     if (DBG_ON(ctx, flags)) {
 363         va_list va;
 364         va_start(va, fmt);
 365         debug_vprintf(fmt, va);
 366         va_end(va);
 367     }
 368 }
 369
 370 void r300_init_debug(struct r300_context * ctx);
 371
 372 #endif /* R300_CONTEXT_H */