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_context;
  34
  35 struct r300_fragment_shader;
  36 struct r300_vertex_shader;
  37
  38 struct r300_atom {
  39     struct r300_atom *prev, *next;
  40     void* state;
  41     void (*emit)(struct r300_context*, void*);
  42     boolean dirty;
  43     boolean always_dirty;
  44 };
  45
  46 struct r300_blend_state {
  47     uint32_t blend_control;       /* R300_RB3D_CBLEND: 0x4e04 */
  48     uint32_t alpha_blend_control; /* R300_RB3D_ABLEND: 0x4e08 */
  49     uint32_t color_channel_mask;  /* R300_RB3D_COLOR_CHANNEL_MASK: 0x4e0c */
  50     uint32_t rop;                 /* R300_RB3D_ROPCNTL: 0x4e18 */
  51     uint32_t dither;              /* R300_RB3D_DITHER_CTL: 0x4e50 */
  52 };
  53
  54 struct r300_blend_color_state {
  55     /* RV515 and earlier */
  56     uint32_t blend_color;            /* R300_RB3D_BLEND_COLOR: 0x4e10 */
  57     /* R520 and newer */
  58     uint32_t blend_color_red_alpha;  /* R500_RB3D_CONSTANT_COLOR_AR: 0x4ef8 */
  59     uint32_t blend_color_green_blue; /* R500_RB3D_CONSTANT_COLOR_GB: 0x4efc */
  60 };
  61
  62 struct r300_dsa_state {
  63     uint32_t alpha_function;    /* R300_FG_ALPHA_FUNC: 0x4bd4 */
  64     uint32_t alpha_reference;   /* R500_FG_ALPHA_VALUE: 0x4be0 */
  65     uint32_t z_buffer_control;  /* R300_ZB_CNTL: 0x4f00 */
  66     uint32_t z_stencil_control; /* R300_ZB_ZSTENCILCNTL: 0x4f04 */
  67     uint32_t stencil_ref_mask;  /* R300_ZB_STENCILREFMASK: 0x4f08 */
  68     uint32_t stencil_ref_bf;    /* R500_ZB_STENCILREFMASK_BF: 0x4fd4 */
  69 };
  70
  71 struct r300_rs_state {
  72     /* Draw-specific rasterizer state */
  73     struct pipe_rasterizer_state rs;
  74
  75     uint32_t vap_control_status;    /* R300_VAP_CNTL_STATUS: 0x2140 */
  76     uint32_t point_size;            /* R300_GA_POINT_SIZE: 0x421c */
  77     uint32_t point_minmax;          /* R300_GA_POINT_MINMAX: 0x4230 */
  78     uint32_t line_control;          /* R300_GA_LINE_CNTL: 0x4234 */
  79     uint32_t depth_scale_front;  /* R300_SU_POLY_OFFSET_FRONT_SCALE: 0x42a4 */
  80     uint32_t depth_offset_front;/* R300_SU_POLY_OFFSET_FRONT_OFFSET: 0x42a8 */
  81     uint32_t depth_scale_back;    /* R300_SU_POLY_OFFSET_BACK_SCALE: 0x42ac */
  82     uint32_t depth_offset_back;  /* R300_SU_POLY_OFFSET_BACK_OFFSET: 0x42b0 */
  83     uint32_t polygon_offset_enable; /* R300_SU_POLY_OFFSET_ENABLE: 0x42b4 */
  84     uint32_t cull_mode;             /* R300_SU_CULL_MODE: 0x42b8 */
  85     uint32_t line_stipple_config;   /* R300_GA_LINE_STIPPLE_CONFIG: 0x4328 */
  86     uint32_t line_stipple_value;    /* R300_GA_LINE_STIPPLE_VALUE: 0x4260 */
  87     uint32_t color_control;         /* R300_GA_COLOR_CONTROL: 0x4278 */
  88     uint32_t polygon_mode;          /* R300_GA_POLY_MODE: 0x4288 */
  89 };
  90
  91 struct r300_rs_block {
  92     uint32_t ip[8]; /* R300_RS_IP_[0-7], R500_RS_IP_[0-7] */
  93     uint32_t count; /* R300_RS_COUNT */
  94     uint32_t inst_count; /* R300_RS_INST_COUNT */
  95     uint32_t inst[8]; /* R300_RS_INST_[0-7] */
  96 };
  97
  98 struct r300_sampler_state {
  99     struct pipe_sampler_state state;
 100
 101     uint32_t filter0;      /* R300_TX_FILTER0: 0x4400 */
 102     uint32_t filter1;      /* R300_TX_FILTER1: 0x4440 */
 103     uint32_t border_color; /* R300_TX_BORDER_COLOR: 0x45c0 */
 104
 105     /* Min/max LOD must be clamped to [0, last_level], thus
 106      * it's dependent on a currently bound texture */
 107     unsigned min_lod, max_lod;
 108 };
 109
 110 struct r300_texture_state {
 111     uint32_t format0; /* R300_TX_FORMAT0: 0x4480 */
 112     uint32_t format1; /* R300_TX_FORMAT1: 0x44c0 */
 113     uint32_t format2; /* R300_TX_FORMAT2: 0x4500 */
 114 };
 115
 116 struct r300_viewport_state {
 117     float xscale;         /* R300_VAP_VPORT_XSCALE:  0x2098 */
 118     float xoffset;        /* R300_VAP_VPORT_XOFFSET: 0x209c */
 119     float yscale;         /* R300_VAP_VPORT_YSCALE:  0x20a0 */
 120     float yoffset;        /* R300_VAP_VPORT_YOFFSET: 0x20a4 */
 121     float zscale;         /* R300_VAP_VPORT_ZSCALE:  0x20a8 */
 122     float zoffset;        /* R300_VAP_VPORT_ZOFFSET: 0x20ac */
 123     uint32_t vte_control; /* R300_VAP_VTE_CNTL:      0x20b0 */
 124 };
 125
 126 struct r300_ztop_state {
 127     uint32_t z_buffer_top;      /* R300_ZB_ZTOP: 0x4f14 */
 128 };
 129
 130 #define R300_NEW_FRAMEBUFFERS    0x00000010
 131 #define R300_NEW_FRAGMENT_SHADER 0x00000020
 132 #define R300_NEW_FRAGMENT_SHADER_CONSTANTS    0x00000040
 133 #define R300_NEW_RS_BLOCK        0x00000100
 134 #define R300_NEW_SAMPLER         0x00000200
 135 #define R300_ANY_NEW_SAMPLERS    0x0001fe00
 136 #define R300_NEW_TEXTURE         0x00040000
 137 #define R300_ANY_NEW_TEXTURES    0x03fc0000
 138 #define R300_NEW_VERTEX_FORMAT   0x04000000
 139 #define R300_NEW_VERTEX_SHADER   0x08000000
 140 #define R300_NEW_VERTEX_SHADER_CONSTANTS    0x10000000
 141 #define R300_NEW_QUERY           0x40000000
 142 #define R300_NEW_KITCHEN_SINK    0x7fffffff
 143
 144 /* The next several objects are not pure Radeon state; they inherit from
 145  * various Gallium classes. */
 146
 147 struct r300_constant_buffer {
 148     /* Buffer of constants */
 149     /* XXX first number should be raised */
 150     float constants[32][4];
 151     /* Total number of constants */
 152     unsigned count;
 153 };
 154
 155 /* Query object.
 156  *
 157  * This is not a subclass of pipe_query because pipe_query is never
 158  * actually fully defined. So, rather than have it as a member, and do
 159  * subclass-style casting, we treat pipe_query as an opaque, and just
 160  * trust that our state tracker does not ever mess up query objects.
 161  */
 162 struct r300_query {
 163     /* The kind of query. Currently only OQ is supported. */
 164     unsigned type;
 165     /* Whether this query is currently active. Only active queries will
 166      * get emitted into the command stream, and only active queries get
 167      * tallied. */
 168     boolean active;
 169     /* The current count of this query. Required to be at least 32 bits. */
 170     unsigned int count;
 171     /* The offset of this query into the query buffer, in bytes. */
 172     unsigned offset;
 173     /* if we've flushed the query */
 174     boolean flushed;
 175     /* if begin has been emitted */
 176     boolean begin_emitted;
 177     /* Linked list members. */
 178     struct r300_query* prev;
 179     struct r300_query* next;
 180 };
 181
 182 struct r300_texture {
 183     /* Parent class */
 184     struct pipe_texture tex;
 185
 186     /* Offsets into the buffer. */
 187     unsigned offset[PIPE_MAX_TEXTURE_LEVELS];
 188
 189     /* A pitch for each mip-level */
 190     unsigned pitch[PIPE_MAX_TEXTURE_LEVELS];
 191
 192     /* Size of one zslice or face based on the texture target */
 193     unsigned layer_size[PIPE_MAX_TEXTURE_LEVELS];
 194
 195     /**
 196      * If non-zero, override the natural texture layout with
 197      * a custom stride (in bytes).
 198      *
 199      * \note Mipmapping fails for textures with a non-natural layout!
 200      *
 201      * \sa r300_texture_get_stride
 202      */
 203     unsigned stride_override;
 204
 205     /* Total size of this texture, in bytes. */
 206     unsigned size;
 207
 208     /* Whether this texture has non-power-of-two dimensions.
 209      * It can be either a regular texture or a rectangle one.
 210      */
 211     boolean is_npot;
 212
 213     /* Pipe buffer backing this texture. */
 214     struct pipe_buffer* buffer;
 215
 216     /* Registers carrying texture format data. */
 217     struct r300_texture_state state;
 218 };
 219
 220 struct r300_vertex_info {
 221     /* Parent class */
 222     struct vertex_info vinfo;
 223
 224     /* R300_VAP_PROG_STREAK_CNTL_[0-7] */
 225     uint32_t vap_prog_stream_cntl[8];
 226     /* R300_VAP_PROG_STREAK_CNTL_EXT_[0-7] */
 227     uint32_t vap_prog_stream_cntl_ext[8];
 228 };
 229
 230 extern struct pipe_viewport_state r300_viewport_identity;
 231
 232 struct r300_context {
 233     /* Parent class */
 234     struct pipe_context context;
 235
 236     /* The interface to the windowing system, etc. */
 237     struct radeon_winsys* winsys;
 238     /* Draw module. Used mostly for SW TCL. */
 239     struct draw_context* draw;
 240     /* Accelerated blit support. */
 241     struct blitter_context* blitter;
 242
 243     /* Vertex buffer for rendering. */
 244     struct pipe_buffer* vbo;
 245     /* Offset into the VBO. */
 246     size_t vbo_offset;
 247
 248     /* Occlusion query buffer. */
 249     struct pipe_buffer* oqbo;
 250     /* Query list. */
 251     struct r300_query *query_current;
 252     struct r300_query query_list;
 253
 254     /* Shader hash table. Used to store vertex formatting information, which
 255      * depends on the combination of both currently loaded shaders. */
 256     struct util_hash_table* shader_hash_table;
 257     /* Vertex formatting information. */
 258     struct r300_vertex_info* vertex_info;
 259
 260     /* Various CSO state objects. */
 261     /* Beginning of atom list. */
 262     struct r300_atom atom_list;
 263     /* Blend state. */
 264     struct r300_atom blend_state;
 265     /* Blend color state. */
 266     struct r300_atom blend_color_state;
 267     /* User clip planes. */
 268     struct r300_atom clip_state;
 269     /* Shader constants. */
 270     struct r300_constant_buffer shader_constants[PIPE_SHADER_TYPES];
 271     /* Depth, stencil, and alpha state. */
 272     struct r300_atom dsa_state;
 273     /* Fragment shader. */
 274     struct r300_fragment_shader* fs;
 275     /* Framebuffer state. We currently don't need our own version of this. */
 276     struct pipe_framebuffer_state framebuffer_state;
 277     /* Rasterizer state. */
 278     struct r300_atom rs_state;
 279     /* RS block state. */
 280     struct r300_rs_block* rs_block;
 281     /* Sampler states. */
 282     struct r300_sampler_state* sampler_states[8];
 283     int sampler_count;
 284     /* Scissor state. */
 285     struct r300_atom scissor_state;
 286     /* Texture states. */
 287     struct r300_texture* textures[8];
 288     int texture_count;
 289     /* Vertex shader. */
 290     struct r300_vertex_shader* vs;
 291     /* Viewport state. */
 292     struct r300_atom viewport_state;
 293     /* ZTOP state. */
 294     struct r300_atom ztop_state;
 295
 296     /* Vertex buffers for Gallium. */
 297     struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
 298     int vertex_buffer_count;
 299     /* Vertex elements for Gallium. */
 300     struct pipe_vertex_element vertex_element[PIPE_MAX_ATTRIBS];
 301     int vertex_element_count;
 302
 303     /* Bitmask of dirty state objects. */
 304     uint32_t dirty_state;
 305     /* Flag indicating whether or not the HW is dirty. */
 306     uint32_t dirty_hw;
 307     /* Whether the TCL engine should be in bypass mode. */
 308     boolean tcl_bypass;
 309
 310     /** Combination of DBG_xxx flags */
 311     unsigned debug;
 312 };
 313
 314 /* Convenience cast wrapper. */
 315 static INLINE struct r300_context* r300_context(struct pipe_context* context)
 316 {
 317     return (struct r300_context*)context;
 318 }
 319
 320 /* Context initialization. */
 321 struct draw_stage* r300_draw_stage(struct r300_context* r300);
 322 void r300_init_state_functions(struct r300_context* r300);
 323 void r300_init_surface_functions(struct r300_context* r300);
 324
 325 /* Debug functionality. */
 326
 327 /**
 328  * Debug flags to disable/enable certain groups of debugging outputs.
 329  *
 330  * \note These may be rather coarse, and the grouping may be impractical.
 331  * If you find, while debugging the driver, that a different grouping
 332  * of these flags would be beneficial, just feel free to change them
 333  * but make sure to update the documentation in r300_debug.c to reflect
 334  * those changes.
 335  */
 336 /*@{*/
 337 #define DBG_HELP    0x0000001
 338 #define DBG_FP      0x0000002
 339 #define DBG_VP      0x0000004
 340 #define DBG_CS      0x0000008
 341 #define DBG_DRAW    0x0000010
 342 #define DBG_TEX     0x0000020
 343 #define DBG_FALL    0x0000040
 344 /*@}*/
 345
 346 static INLINE boolean DBG_ON(struct r300_context * ctx, unsigned flags)
 347 {
 348     return (ctx->debug & flags) ? TRUE : FALSE;
 349 }
 350
 351 static INLINE void DBG(struct r300_context * ctx, unsigned flags, const char * fmt, ...)
 352 {
 353     if (DBG_ON(ctx, flags)) {
 354         va_list va;
 355         va_start(va, fmt);
 356         debug_vprintf(fmt, va);
 357         va_end(va);
 358     }
 359 }
 360
 361 void r300_init_debug(struct r300_context * ctx);
 362
 363 #endif /* R300_CONTEXT_H */