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 "util/u_inlines.h"
  32 #include "util/u_transfer.h"
  33
  34 #include "r300_defines.h"
  35 #include "r300_screen.h"
  36
  37 struct u_upload_mgr;
  38 struct r300_context;
  39
  40 struct r300_fragment_shader;
  41 struct r300_vertex_shader;
  42
  43 struct r300_atom {
  44     /* List pointers. */
  45     struct r300_atom *prev, *next;
  46     /* Name, for debugging. */
  47     const char* name;
  48     /* Stat counter. */
  49     uint64_t counter;
  50     /* Opaque state. */
  51     void* state;
  52     /* Emit the state to the context. */
  53     void (*emit)(struct r300_context*, unsigned, void*);
  54     /* Upper bound on number of dwords to emit. */
  55     unsigned size;
  56     /* Whether this atom should be emitted. */
  57     boolean dirty;
  58 };
  59
  60 struct r300_blend_state {
  61     uint32_t blend_control;       /* R300_RB3D_CBLEND: 0x4e04 */
  62     uint32_t alpha_blend_control; /* R300_RB3D_ABLEND: 0x4e08 */
  63     uint32_t color_channel_mask;  /* R300_RB3D_COLOR_CHANNEL_MASK: 0x4e0c */
  64     uint32_t rop;                 /* R300_RB3D_ROPCNTL: 0x4e18 */
  65     uint32_t dither;              /* R300_RB3D_DITHER_CTL: 0x4e50 */
  66 };
  67
  68 struct r300_blend_color_state {
  69     /* RV515 and earlier */
  70     uint32_t blend_color;            /* R300_RB3D_BLEND_COLOR: 0x4e10 */
  71     /* R520 and newer */
  72     uint32_t blend_color_red_alpha;  /* R500_RB3D_CONSTANT_COLOR_AR: 0x4ef8 */
  73     uint32_t blend_color_green_blue; /* R500_RB3D_CONSTANT_COLOR_GB: 0x4efc */
  74 };
  75
  76 struct r300_dsa_state {
  77     uint32_t alpha_function;    /* R300_FG_ALPHA_FUNC: 0x4bd4 */
  78     uint32_t alpha_reference;   /* R500_FG_ALPHA_VALUE: 0x4be0 */
  79     uint32_t z_buffer_control;  /* R300_ZB_CNTL: 0x4f00 */
  80     uint32_t z_stencil_control; /* R300_ZB_ZSTENCILCNTL: 0x4f04 */
  81     uint32_t stencil_ref_mask;  /* R300_ZB_STENCILREFMASK: 0x4f08 */
  82     uint32_t stencil_ref_bf;    /* R500_ZB_STENCILREFMASK_BF: 0x4fd4 */
  83
  84     /* Whether a two-sided stencil is enabled. */
  85     boolean two_sided;
  86     /* Whether a fallback should be used for a two-sided stencil ref value. */
  87     boolean stencil_ref_bf_fallback;
  88 };
  89
  90 struct r300_rs_state {
  91     /* Draw-specific rasterizer state */
  92     struct pipe_rasterizer_state rs;
  93
  94     uint32_t vap_control_status;    /* R300_VAP_CNTL_STATUS: 0x2140 */
  95     uint32_t antialiasing_config;   /* R300_GB_AA_CONFIG: 0x4020 */
  96     uint32_t point_size;            /* R300_GA_POINT_SIZE: 0x421c */
  97     uint32_t point_minmax;          /* R300_GA_POINT_MINMAX: 0x4230 */
  98     uint32_t line_control;          /* R300_GA_LINE_CNTL: 0x4234 */
  99     float depth_scale;            /* R300_SU_POLY_OFFSET_FRONT_SCALE: 0x42a4 */
 100                                   /* R300_SU_POLY_OFFSET_BACK_SCALE: 0x42ac */
 101     float depth_offset;           /* R300_SU_POLY_OFFSET_FRONT_OFFSET: 0x42a8 */
 102                                   /* R300_SU_POLY_OFFSET_BACK_OFFSET: 0x42b0 */
 103     uint32_t polygon_offset_enable; /* R300_SU_POLY_OFFSET_ENABLE: 0x42b4 */
 104     uint32_t cull_mode;             /* R300_SU_CULL_MODE: 0x42b8 */
 105     uint32_t line_stipple_config;   /* R300_GA_LINE_STIPPLE_CONFIG: 0x4328 */
 106     uint32_t line_stipple_value;    /* R300_GA_LINE_STIPPLE_VALUE: 0x4260 */
 107     uint32_t color_control;         /* R300_GA_COLOR_CONTROL: 0x4278 */
 108     uint32_t polygon_mode;          /* R300_GA_POLY_MODE: 0x4288 */
 109     uint32_t clip_rule;             /* R300_SC_CLIP_RULE: 0x43D0 */
 110
 111     /* Specifies top of Raster pipe specific enable controls,
 112      * i.e. texture coordinates stuffing for points, lines, triangles */
 113     uint32_t stuffing_enable;       /* R300_GB_ENABLE: 0x4008 */
 114
 115     /* Point sprites texture coordinates, 0: lower left, 1: upper right */
 116     float point_texcoord_left;      /* R300_GA_POINT_S0: 0x4200 */
 117     float point_texcoord_bottom;    /* R300_GA_POINT_T0: 0x4204 */
 118     float point_texcoord_right;     /* R300_GA_POINT_S1: 0x4208 */
 119     float point_texcoord_top;       /* R300_GA_POINT_T1: 0x420c */
 120 };
 121
 122 struct r300_rs_block {
 123     uint32_t vap_vtx_state_cntl;  /* R300_VAP_VTX_STATE_CNTL: 0x2180 */
 124     uint32_t vap_vsm_vtx_assm;    /* R300_VAP_VSM_VTX_ASSM: 0x2184 */
 125     uint32_t vap_out_vtx_fmt[2];  /* R300_VAP_OUTPUT_VTX_FMT_[0-1]: 0x2090 */
 126
 127     uint32_t ip[8]; /* R300_RS_IP_[0-7], R500_RS_IP_[0-7] */
 128     uint32_t count; /* R300_RS_COUNT */
 129     uint32_t inst_count; /* R300_RS_INST_COUNT */
 130     uint32_t inst[8]; /* R300_RS_INST_[0-7] */
 131 };
 132
 133 struct r300_sampler_state {
 134     struct pipe_sampler_state state;
 135
 136     uint32_t filter0;      /* R300_TX_FILTER0: 0x4400 */
 137     uint32_t filter1;      /* R300_TX_FILTER1: 0x4440 */
 138     uint32_t border_color; /* R300_TX_BORDER_COLOR: 0x45c0 */
 139
 140     /* Min/max LOD must be clamped to [0, last_level], thus
 141      * it's dependent on a currently bound texture */
 142     unsigned min_lod, max_lod;
 143 };
 144
 145 struct r300_texture_format_state {
 146     uint32_t format0; /* R300_TX_FORMAT0: 0x4480 */
 147     uint32_t format1; /* R300_TX_FORMAT1: 0x44c0 */
 148     uint32_t format2; /* R300_TX_FORMAT2: 0x4500 */
 149     uint32_t tile_config; /* R300_TX_OFFSET (subset thereof) */
 150 };
 151
 152 struct r300_sampler_view {
 153     struct pipe_sampler_view base;
 154
 155     /* Swizzles in the UTIL_FORMAT_SWIZZLE_* representation,
 156      * derived from base. */
 157     unsigned char swizzle[4];
 158
 159     /* Copy of r300_texture::texture_format_state with format-specific bits
 160      * added. */
 161     struct r300_texture_format_state format;
 162 };
 163
 164 struct r300_texture_fb_state {
 165     /* Colorbuffer. */
 166     uint32_t colorpitch[R300_MAX_TEXTURE_LEVELS]; /* R300_RB3D_COLORPITCH[0-3]*/
 167     uint32_t us_out_fmt; /* R300_US_OUT_FMT[0-3] */
 168
 169     /* Zbuffer. */
 170     uint32_t depthpitch[R300_MAX_TEXTURE_LEVELS]; /* R300_RB3D_DEPTHPITCH */
 171     uint32_t zb_format; /* R300_ZB_FORMAT */
 172 };
 173
 174 struct r300_texture_sampler_state {
 175     struct r300_texture_format_state format;
 176     uint32_t filter0;      /* R300_TX_FILTER0: 0x4400 */
 177     uint32_t filter1;      /* R300_TX_FILTER1: 0x4440 */
 178     uint32_t border_color;  /* R300_TX_BORDER_COLOR: 0x45c0 */
 179 };
 180
 181 struct r300_textures_state {
 182     /* Textures. */
 183     struct r300_sampler_view *sampler_views[16];
 184     int sampler_view_count;
 185     /* Sampler states. */
 186     struct r300_sampler_state *sampler_states[16];
 187     int sampler_state_count;
 188
 189     /* This is the merge of the texture and sampler states. */
 190     unsigned count;
 191     uint32_t tx_enable;         /* R300_TX_ENABLE: 0x4101 */
 192     struct r300_texture_sampler_state regs[16];
 193 };
 194
 195 struct r300_vertex_stream_state {
 196     /* R300_VAP_PROG_STREAK_CNTL_[0-7] */
 197     uint32_t vap_prog_stream_cntl[8];
 198     /* R300_VAP_PROG_STREAK_CNTL_EXT_[0-7] */
 199     uint32_t vap_prog_stream_cntl_ext[8];
 200
 201     unsigned count;
 202 };
 203
 204 struct r300_viewport_state {
 205     float xscale;         /* R300_VAP_VPORT_XSCALE:  0x2098 */
 206     float xoffset;        /* R300_VAP_VPORT_XOFFSET: 0x209c */
 207     float yscale;         /* R300_VAP_VPORT_YSCALE:  0x20a0 */
 208     float yoffset;        /* R300_VAP_VPORT_YOFFSET: 0x20a4 */
 209     float zscale;         /* R300_VAP_VPORT_ZSCALE:  0x20a8 */
 210     float zoffset;        /* R300_VAP_VPORT_ZOFFSET: 0x20ac */
 211     uint32_t vte_control; /* R300_VAP_VTE_CNTL:      0x20b0 */
 212 };
 213
 214 struct r300_ztop_state {
 215     uint32_t z_buffer_top;      /* R300_ZB_ZTOP: 0x4f14 */
 216 };
 217
 218 /* The next several objects are not pure Radeon state; they inherit from
 219  * various Gallium classes. */
 220
 221 struct r300_constant_buffer {
 222     /* Buffer of constants */
 223     float constants[256][4];
 224     /* Total number of constants */
 225     unsigned count;
 226 };
 227
 228 /* Query object.
 229  *
 230  * This is not a subclass of pipe_query because pipe_query is never
 231  * actually fully defined. So, rather than have it as a member, and do
 232  * subclass-style casting, we treat pipe_query as an opaque, and just
 233  * trust that our state tracker does not ever mess up query objects.
 234  */
 235 struct r300_query {
 236     /* The kind of query. Currently only OQ is supported. */
 237     unsigned type;
 238     /* Whether this query is currently active. Only active queries will
 239      * get emitted into the command stream, and only active queries get
 240      * tallied. */
 241     boolean active;
 242     /* The current count of this query. Required to be at least 32 bits. */
 243     unsigned int count;
 244     /* The offset of this query into the query buffer, in bytes. */
 245     unsigned offset;
 246     /* if we've flushed the query */
 247     boolean flushed;
 248     /* if begin has been emitted */
 249     boolean begin_emitted;
 250     /* Linked list members. */
 251     struct r300_query* prev;
 252     struct r300_query* next;
 253 };
 254
 255 struct r300_texture {
 256     /* Parent class */
 257     struct u_resource b;
 258
 259     /* Offsets into the buffer. */
 260     unsigned offset[R300_MAX_TEXTURE_LEVELS];
 261
 262     /* A pitch for each mip-level */
 263     unsigned pitch[R300_MAX_TEXTURE_LEVELS];
 264
 265     /* A pitch multiplied by blockwidth as hardware wants
 266      * the number of pixels instead of the number of blocks. */
 267     unsigned hwpitch[R300_MAX_TEXTURE_LEVELS];
 268
 269     /* Size of one zslice or face based on the texture target */
 270     unsigned layer_size[R300_MAX_TEXTURE_LEVELS];
 271
 272     /* Whether the mipmap level is macrotiled. */
 273     enum r300_buffer_tiling mip_macrotile[R300_MAX_TEXTURE_LEVELS];
 274
 275     /**
 276      * If non-zero, override the natural texture layout with
 277      * a custom stride (in bytes).
 278      *
 279      * \note Mipmapping fails for textures with a non-natural layout!
 280      *
 281      * \sa r300_texture_get_stride
 282      */
 283     unsigned stride_override;
 284
 285     /* Total size of this texture, in bytes. */
 286     unsigned size;
 287
 288     /* Whether this texture has non-power-of-two dimensions
 289      * or a user-specified pitch.
 290      * It can be either a regular texture or a rectangle one.
 291      */
 292     boolean uses_pitch;
 293
 294     /* Pipe buffer backing this texture. */
 295     struct r300_winsys_buffer *buffer;
 296
 297     /* Registers carrying texture format data. */
 298     /* Only format-independent bits should be filled in. */
 299     struct r300_texture_format_state tx_format;
 300     /* All bits should be filled in. */
 301     struct r300_texture_fb_state fb_state;
 302
 303     /* Buffer tiling */
 304     enum r300_buffer_tiling microtile, macrotile;
 305 };
 306
 307 struct r300_vertex_info {
 308     /* Parent class */
 309     struct vertex_info vinfo;
 310
 311     /* R300_VAP_PROG_STREAK_CNTL_[0-7] */
 312     uint32_t vap_prog_stream_cntl[8];
 313     /* R300_VAP_PROG_STREAK_CNTL_EXT_[0-7] */
 314     uint32_t vap_prog_stream_cntl_ext[8];
 315 };
 316
 317 struct r300_vertex_element_state {
 318     unsigned count;
 319     struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
 320
 321     struct r300_vertex_stream_state vertex_stream;
 322 };
 323
 324 extern struct pipe_viewport_state r300_viewport_identity;
 325
 326 struct r300_context {
 327     /* Parent class */
 328     struct pipe_context context;
 329
 330     /* Emission of drawing packets. */
 331     void (*emit_draw_arrays_immediate)(
 332             struct r300_context *r300,
 333             unsigned mode, unsigned start, unsigned count);
 334
 335     void (*emit_draw_arrays)(
 336             struct r300_context *r300,
 337             unsigned mode, unsigned count);
 338
 339     void (*emit_draw_elements)(
 340             struct r300_context *r300, struct pipe_resource* indexBuffer,
 341             unsigned indexSize, unsigned minIndex, unsigned maxIndex,
 342             unsigned mode, unsigned start, unsigned count);
 343
 344
 345     /* The interface to the windowing system, etc. */
 346     struct r300_winsys_screen *rws;
 347     /* Screen. */
 348     struct r300_screen *screen;
 349     /* Draw module. Used mostly for SW TCL. */
 350     struct draw_context* draw;
 351     /* Accelerated blit support. */
 352     struct blitter_context* blitter;
 353
 354     /* Vertex buffer for rendering. */
 355     struct pipe_resource* vbo;
 356     /* Offset into the VBO. */
 357     size_t vbo_offset;
 358
 359     /* Occlusion query buffer. */
 360     struct pipe_resource* oqbo;
 361     /* Query list. */
 362     struct r300_query *query_current;
 363     struct r300_query query_list;
 364
 365     /* Various CSO state objects. */
 366     /* Beginning of atom list. */
 367     struct r300_atom atom_list;
 368     /* Blend state. */
 369     struct r300_atom blend_state;
 370     /* Blend color state. */
 371     struct r300_atom blend_color_state;
 372     /* User clip planes. */
 373     struct r300_atom clip_state;
 374     /* Depth, stencil, and alpha state. */
 375     struct r300_atom dsa_state;
 376     /* Fragment shader. */
 377     struct r300_atom fs;
 378     /* Fragment shader RC_CONSTANT_STATE variables. */
 379     struct r300_atom fs_rc_constant_state;
 380     /* Fragment shader constant buffer. */
 381     struct r300_atom fs_constants;
 382     /* Framebuffer state. */
 383     struct r300_atom fb_state;
 384     /* Occlusion query. */
 385     struct r300_atom query_start;
 386     /* Rasterizer state. */
 387     struct r300_atom rs_state;
 388     /* RS block state + VAP (vertex shader) output mapping state. */
 389     struct r300_atom rs_block_state;
 390     /* Scissor state. */
 391     struct r300_atom scissor_state;
 392     /* Textures state. */
 393     struct r300_atom textures_state;
 394     /* Vertex stream formatting state. */
 395     struct r300_atom vertex_stream_state;
 396     /* Vertex shader. */
 397     struct r300_atom vs_state;
 398     /* Vertex shader constant buffer. */
 399     struct r300_atom vs_constants;
 400     /* Viewport state. */
 401     struct r300_atom viewport_state;
 402     /* ZTOP state. */
 403     struct r300_atom ztop_state;
 404     /* PVS flush. */
 405     struct r300_atom pvs_flush;
 406     /* Texture cache invalidate. */
 407     struct r300_atom texture_cache_inval;
 408
 409     /* Invariant state. This must be emitted to get the engine started. */
 410     struct r300_atom invariant_state;
 411
 412     /* Vertex buffers for Gallium. */
 413     struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
 414     int vertex_buffer_count;
 415     int vertex_buffer_max_index;
 416     /* Vertex elements for Gallium. */
 417     struct r300_vertex_element_state *velems;
 418     bool any_user_vbs;
 419
 420     /* Vertex info for Draw. */
 421     struct vertex_info vertex_info;
 422
 423     struct pipe_stencil_ref stencil_ref;
 424
 425     struct pipe_clip_state clip;
 426
 427     struct pipe_viewport_state viewport;
 428
 429     /* Stream locations for SWTCL. */
 430     int stream_loc_notcl[16];
 431
 432     /* Flag indicating whether or not the HW is dirty. */
 433     uint32_t dirty_hw;
 434     /* Whether polygon offset is enabled. */
 435     boolean polygon_offset_enabled;
 436     /* Z buffer bit depth. */
 437     uint32_t zbuffer_bpp;
 438     /* Whether rendering is conditional and should be skipped. */
 439     boolean skip_rendering;
 440     /* Whether the two-sided stencil ref value is different for front and
 441      * back faces, and fallback should be used for r3xx-r4xx. */
 442     boolean stencil_ref_bf_fallback;
 443     /* Point sprites texcoord index,  1 bit per texcoord */
 444     int sprite_coord_enable;
 445     /* Whether two-sided color selection is enabled (AKA light_twoside). */
 446     boolean two_sided_color;
 447
 448     /* upload managers */
 449     struct u_upload_mgr *upload_vb;
 450     struct u_upload_mgr *upload_ib;
 451
 452     /* Stat counter. */
 453     uint64_t flush_counter;
 454 };
 455
 456 /* Convenience cast wrapper. */
 457 static INLINE struct r300_texture* r300_texture(struct pipe_resource* tex)
 458 {
 459     return (struct r300_texture*)tex;
 460 }
 461
 462 static INLINE struct r300_context* r300_context(struct pipe_context* context)
 463 {
 464     return (struct r300_context*)context;
 465 }
 466
 467 static INLINE struct r300_fragment_shader *r300_fs(struct r300_context *r300)
 468 {
 469     return (struct r300_fragment_shader*)r300->fs.state;
 470 }
 471
 472 struct pipe_context* r300_create_context(struct pipe_screen* screen,
 473                                          void *priv);
 474
 475 /* Context initialization. */
 476 struct draw_stage* r300_draw_stage(struct r300_context* r300);
 477 void r300_init_state_functions(struct r300_context* r300);
 478 void r300_init_resource_functions(struct r300_context* r300);
 479
 480 static INLINE boolean CTX_DBG_ON(struct r300_context * ctx, unsigned flags)
 481 {
 482     return SCREEN_DBG_ON(ctx->screen, flags);
 483 }
 484
 485 static INLINE void CTX_DBG(struct r300_context * ctx, unsigned flags,
 486                        const char * fmt, ...)
 487 {
 488     if (CTX_DBG_ON(ctx, flags)) {
 489         va_list va;
 490         va_start(va, fmt);
 491         vfprintf(stderr, fmt, va);
 492         va_end(va);
 493     }
 494 }
 495
 496 #define DBG_ON  CTX_DBG_ON
 497 #define DBG     CTX_DBG
 498
 499 #endif /* R300_CONTEXT_H */