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
  33 #include "r300_defines.h"
  34 #include "r300_screen.h"
  35
  36 struct u_upload_mgr;
  37 struct r300_context;
  38
  39 struct r300_fragment_shader;
  40 struct r300_vertex_shader;
  41
  42 struct r300_atom {
  43     /* List pointers. */
  44     struct r300_atom *prev, *next;
  45     /* Name, for debugging. */
  46     const char* name;
  47     /* Opaque state. */
  48     void* state;
  49     /* Emit the state to the context. */
  50     void (*emit)(struct r300_context*, unsigned, void*);
  51     /* Upper bound on number of dwords to emit. */
  52     unsigned size;
  53     /* Whether this atom should be emitted. */
  54     boolean dirty;
  55     /* Another dirty flag that is never automatically cleared. */
  56     boolean always_dirty;
  57 };
  58
  59 struct r300_blend_state {
  60     uint32_t blend_control;       /* R300_RB3D_CBLEND: 0x4e04 */
  61     uint32_t alpha_blend_control; /* R300_RB3D_ABLEND: 0x4e08 */
  62     uint32_t color_channel_mask;  /* R300_RB3D_COLOR_CHANNEL_MASK: 0x4e0c */
  63     uint32_t rop;                 /* R300_RB3D_ROPCNTL: 0x4e18 */
  64     uint32_t dither;              /* R300_RB3D_DITHER_CTL: 0x4e50 */
  65 };
  66
  67 struct r300_blend_color_state {
  68     /* RV515 and earlier */
  69     uint32_t blend_color;            /* R300_RB3D_BLEND_COLOR: 0x4e10 */
  70     /* R520 and newer */
  71     uint32_t blend_color_red_alpha;  /* R500_RB3D_CONSTANT_COLOR_AR: 0x4ef8 */
  72     uint32_t blend_color_green_blue; /* R500_RB3D_CONSTANT_COLOR_GB: 0x4efc */
  73 };
  74
  75 struct r300_dsa_state {
  76     uint32_t alpha_function;    /* R300_FG_ALPHA_FUNC: 0x4bd4 */
  77     uint32_t alpha_reference;   /* R500_FG_ALPHA_VALUE: 0x4be0 */
  78     uint32_t z_buffer_control;  /* R300_ZB_CNTL: 0x4f00 */
  79     uint32_t z_stencil_control; /* R300_ZB_ZSTENCILCNTL: 0x4f04 */
  80     uint32_t stencil_ref_mask;  /* R300_ZB_STENCILREFMASK: 0x4f08 */
  81     uint32_t stencil_ref_bf;    /* R500_ZB_STENCILREFMASK_BF: 0x4fd4 */
  82 };
  83
  84 struct r300_rs_state {
  85     /* Draw-specific rasterizer state */
  86     struct pipe_rasterizer_state rs;
  87
  88     uint32_t vap_control_status;    /* R300_VAP_CNTL_STATUS: 0x2140 */
  89     uint32_t antialiasing_config;   /* R300_GB_AA_CONFIG: 0x4020 */
  90     uint32_t point_size;            /* R300_GA_POINT_SIZE: 0x421c */
  91     uint32_t line_control;          /* R300_GA_LINE_CNTL: 0x4234 */
  92     float depth_scale;            /* R300_SU_POLY_OFFSET_FRONT_SCALE: 0x42a4 */
  93                                   /* R300_SU_POLY_OFFSET_BACK_SCALE: 0x42ac */
  94     float depth_offset;           /* R300_SU_POLY_OFFSET_FRONT_OFFSET: 0x42a8 */
  95                                   /* R300_SU_POLY_OFFSET_BACK_OFFSET: 0x42b0 */
  96     uint32_t polygon_offset_enable; /* R300_SU_POLY_OFFSET_ENABLE: 0x42b4 */
  97     uint32_t cull_mode;             /* R300_SU_CULL_MODE: 0x42b8 */
  98     uint32_t line_stipple_config;   /* R300_GA_LINE_STIPPLE_CONFIG: 0x4328 */
  99     uint32_t line_stipple_value;    /* R300_GA_LINE_STIPPLE_VALUE: 0x4260 */
 100     uint32_t color_control;         /* R300_GA_COLOR_CONTROL: 0x4278 */
 101     uint32_t polygon_mode;          /* R300_GA_POLY_MODE: 0x4288 */
 102 };
 103
 104 struct r300_rs_block {
 105     uint32_t ip[8]; /* R300_RS_IP_[0-7], R500_RS_IP_[0-7] */
 106     uint32_t count; /* R300_RS_COUNT */
 107     uint32_t inst_count; /* R300_RS_INST_COUNT */
 108     uint32_t inst[8]; /* R300_RS_INST_[0-7] */
 109 };
 110
 111 struct r300_sampler_state {
 112     struct pipe_sampler_state state;
 113
 114     uint32_t filter0;      /* R300_TX_FILTER0: 0x4400 */
 115     uint32_t filter1;      /* R300_TX_FILTER1: 0x4440 */
 116     uint32_t border_color; /* R300_TX_BORDER_COLOR: 0x45c0 */
 117
 118     /* Min/max LOD must be clamped to [0, last_level], thus
 119      * it's dependent on a currently bound texture */
 120     unsigned min_lod, max_lod;
 121 };
 122
 123 struct r300_texture_format_state {
 124     uint32_t format0; /* R300_TX_FORMAT0: 0x4480 */
 125     uint32_t format1; /* R300_TX_FORMAT1: 0x44c0 */
 126     uint32_t format2; /* R300_TX_FORMAT2: 0x4500 */
 127 };
 128
 129 struct r300_texture_fb_state {
 130     /* Colorbuffer. */
 131     uint32_t colorpitch[R300_MAX_TEXTURE_LEVELS]; /* R300_RB3D_COLORPITCH[0-3]*/
 132     uint32_t us_out_fmt; /* R300_US_OUT_FMT[0-3] */
 133
 134     /* Zbuffer. */
 135     uint32_t depthpitch[R300_MAX_TEXTURE_LEVELS]; /* R300_RB3D_DEPTHPITCH */
 136     uint32_t zb_format; /* R300_ZB_FORMAT */
 137 };
 138
 139 struct r300_textures_state {
 140     /* Textures. */
 141     struct pipe_sampler_view *fragment_sampler_views[16];
 142     int texture_count;
 143     /* Sampler states. */
 144     struct r300_sampler_state *sampler_states[16];
 145     int sampler_count;
 146
 147     /* These is the merge of the texture and sampler states. */
 148     unsigned count;
 149     uint32_t tx_enable;         /* R300_TX_ENABLE: 0x4101 */
 150     struct r300_texture_sampler_state {
 151         uint32_t format[3];     /* R300_TX_FORMAT[0-2] */
 152         uint32_t filter[2];     /* R300_TX_FILTER[0-1] */
 153         uint32_t border_color;  /* R300_TX_BORDER_COLOR: 0x45c0 */
 154         uint32_t tile_config;   /* R300_TX_OFFSET (subset thereof) */
 155     } regs[16];
 156 };
 157
 158 struct r300_vertex_stream_state {
 159     /* R300_VAP_PROG_STREAK_CNTL_[0-7] */
 160     uint32_t vap_prog_stream_cntl[8];
 161     /* R300_VAP_PROG_STREAK_CNTL_EXT_[0-7] */
 162     uint32_t vap_prog_stream_cntl_ext[8];
 163
 164     unsigned count;
 165 };
 166
 167 struct r300_vap_output_state {
 168     uint32_t vap_vtx_state_cntl;  /* R300_VAP_VTX_STATE_CNTL: 0x2180 */
 169     uint32_t vap_vsm_vtx_assm;    /* R300_VAP_VSM_VTX_ASSM: 0x2184 */
 170     uint32_t vap_out_vtx_fmt[2];  /* R300_VAP_OUTPUT_VTX_FMT_[0-1]: 0x2090 */
 171 };
 172
 173 struct r300_viewport_state {
 174     float xscale;         /* R300_VAP_VPORT_XSCALE:  0x2098 */
 175     float xoffset;        /* R300_VAP_VPORT_XOFFSET: 0x209c */
 176     float yscale;         /* R300_VAP_VPORT_YSCALE:  0x20a0 */
 177     float yoffset;        /* R300_VAP_VPORT_YOFFSET: 0x20a4 */
 178     float zscale;         /* R300_VAP_VPORT_ZSCALE:  0x20a8 */
 179     float zoffset;        /* R300_VAP_VPORT_ZOFFSET: 0x20ac */
 180     uint32_t vte_control; /* R300_VAP_VTE_CNTL:      0x20b0 */
 181 };
 182
 183 struct r300_ztop_state {
 184     uint32_t z_buffer_top;      /* R300_ZB_ZTOP: 0x4f14 */
 185 };
 186
 187 /* The next several objects are not pure Radeon state; they inherit from
 188  * various Gallium classes. */
 189
 190 struct r300_constant_buffer {
 191     /* Buffer of constants */
 192     float constants[256][4];
 193     /* Total number of constants */
 194     unsigned count;
 195 };
 196
 197 /* Query object.
 198  *
 199  * This is not a subclass of pipe_query because pipe_query is never
 200  * actually fully defined. So, rather than have it as a member, and do
 201  * subclass-style casting, we treat pipe_query as an opaque, and just
 202  * trust that our state tracker does not ever mess up query objects.
 203  */
 204 struct r300_query {
 205     /* The kind of query. Currently only OQ is supported. */
 206     unsigned type;
 207     /* Whether this query is currently active. Only active queries will
 208      * get emitted into the command stream, and only active queries get
 209      * tallied. */
 210     boolean active;
 211     /* The current count of this query. Required to be at least 32 bits. */
 212     unsigned int count;
 213     /* The offset of this query into the query buffer, in bytes. */
 214     unsigned offset;
 215     /* if we've flushed the query */
 216     boolean flushed;
 217     /* if begin has been emitted */
 218     boolean begin_emitted;
 219     /* Linked list members. */
 220     struct r300_query* prev;
 221     struct r300_query* next;
 222 };
 223
 224 struct r300_texture {
 225     /* Parent class */
 226     struct pipe_texture tex;
 227
 228     /* Offsets into the buffer. */
 229     unsigned offset[R300_MAX_TEXTURE_LEVELS];
 230
 231     /* A pitch for each mip-level */
 232     unsigned pitch[R300_MAX_TEXTURE_LEVELS];
 233
 234     /* Size of one zslice or face based on the texture target */
 235     unsigned layer_size[R300_MAX_TEXTURE_LEVELS];
 236
 237     /* Whether the mipmap level is macrotiled. */
 238     enum r300_buffer_tiling mip_macrotile[R300_MAX_TEXTURE_LEVELS];
 239
 240     /**
 241      * If non-zero, override the natural texture layout with
 242      * a custom stride (in bytes).
 243      *
 244      * \note Mipmapping fails for textures with a non-natural layout!
 245      *
 246      * \sa r300_texture_get_stride
 247      */
 248     unsigned stride_override;
 249
 250     /* Total size of this texture, in bytes. */
 251     unsigned size;
 252
 253     /* Whether this texture has non-power-of-two dimensions
 254      * or a user-specified pitch.
 255      * It can be either a regular texture or a rectangle one.
 256      */
 257     boolean uses_pitch;
 258
 259     /* Pipe buffer backing this texture. */
 260     struct r300_winsys_buffer *buffer;
 261
 262     /* Registers carrying texture format data. */
 263     struct r300_texture_format_state state;
 264     struct r300_texture_fb_state fb_state;
 265
 266     /* Buffer tiling */
 267     enum r300_buffer_tiling microtile, macrotile;
 268 };
 269
 270 struct r300_vertex_info {
 271     /* Parent class */
 272     struct vertex_info vinfo;
 273
 274     /* R300_VAP_PROG_STREAK_CNTL_[0-7] */
 275     uint32_t vap_prog_stream_cntl[8];
 276     /* R300_VAP_PROG_STREAK_CNTL_EXT_[0-7] */
 277     uint32_t vap_prog_stream_cntl_ext[8];
 278 };
 279
 280 struct r300_vertex_element_state {
 281     unsigned count;
 282     struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
 283
 284     struct r300_vertex_stream_state vertex_stream;
 285 };
 286
 287 extern struct pipe_viewport_state r300_viewport_identity;
 288
 289 struct r300_context {
 290     /* Parent class */
 291     struct pipe_context context;
 292
 293     /* The interface to the windowing system, etc. */
 294     struct r300_winsys_screen *rws;
 295     /* Draw module. Used mostly for SW TCL. */
 296     struct draw_context* draw;
 297     /* Accelerated blit support. */
 298     struct blitter_context* blitter;
 299
 300     /* Vertex buffer for rendering. */
 301     struct pipe_buffer* vbo;
 302     /* Offset into the VBO. */
 303     size_t vbo_offset;
 304
 305     /* Occlusion query buffer. */
 306     struct pipe_buffer* oqbo;
 307     /* Query list. */
 308     struct r300_query *query_current;
 309     struct r300_query query_list;
 310
 311     /* Various CSO state objects. */
 312     /* Beginning of atom list. */
 313     struct r300_atom atom_list;
 314     /* Blend state. */
 315     struct r300_atom blend_state;
 316     /* Blend color state. */
 317     struct r300_atom blend_color_state;
 318     /* User clip planes. */
 319     struct r300_atom clip_state;
 320     /* Shader constants. */
 321     struct r300_constant_buffer shader_constants[PIPE_SHADER_TYPES];
 322     /* Depth, stencil, and alpha state. */
 323     struct r300_atom dsa_state;
 324     /* Fragment shader. */
 325     struct r300_fragment_shader* fs;
 326     /* Framebuffer state. */
 327     struct r300_atom fb_state;
 328     /* Rasterizer state. */
 329     struct r300_atom rs_state;
 330     /* RS block state. */
 331     struct r300_atom rs_block_state;
 332     /* Scissor state. */
 333     struct r300_atom scissor_state;
 334     /* Textures state. */
 335     struct r300_atom textures_state;
 336     /* Vertex stream formatting state. */
 337     struct r300_atom vertex_stream_state;
 338     /* VAP (vertex shader) output mapping state. */
 339     struct r300_atom vap_output_state;
 340     /* Vertex shader. */
 341     struct r300_atom vs_state;
 342     /* Viewport state. */
 343     struct r300_atom viewport_state;
 344     /* ZTOP state. */
 345     struct r300_atom ztop_state;
 346     /* PVS flush. */
 347     struct r300_atom pvs_flush;
 348     /* Texture cache invalidate. */
 349     struct r300_atom texture_cache_inval;
 350
 351     /* Invariant state. This must be emitted to get the engine started. */
 352     struct r300_atom invariant_state;
 353
 354     /* Vertex buffers for Gallium. */
 355     struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
 356     int vertex_buffer_count;
 357     int vertex_buffer_max_index;
 358     /* Vertex elements for Gallium. */
 359     struct r300_vertex_element_state *velems;
 360     bool any_user_vbs;
 361
 362     /* Vertex info for Draw. */
 363     struct vertex_info vertex_info;
 364
 365     struct pipe_stencil_ref stencil_ref;
 366
 367     struct pipe_clip_state clip;
 368
 369     struct pipe_viewport_state viewport;
 370
 371     /* Bitmask of dirty state objects. */
 372     uint32_t dirty_state;
 373     /* Flag indicating whether or not the HW is dirty. */
 374     uint32_t dirty_hw;
 375     /* Whether polygon offset is enabled. */
 376     boolean polygon_offset_enabled;
 377     /* Z buffer bit depth. */
 378     uint32_t zbuffer_bpp;
 379     /* Whether scissor is enabled. */
 380     boolean scissor_enabled;
 381     /* Whether rendering is conditional and should be skipped. */
 382     boolean skip_rendering;
 383     /* upload managers */
 384     struct u_upload_mgr *upload_vb;
 385     struct u_upload_mgr *upload_ib;
 386 };
 387
 388 /* Convenience cast wrapper. */
 389 static INLINE struct r300_context* r300_context(struct pipe_context* context)
 390 {
 391     return (struct r300_context*)context;
 392 }
 393
 394
 395 struct pipe_context* r300_create_context(struct pipe_screen* screen,
 396                                          void *priv);
 397
 398 /* Context initialization. */
 399 struct draw_stage* r300_draw_stage(struct r300_context* r300);
 400 void r300_init_state_functions(struct r300_context* r300);
 401 void r300_init_surface_functions(struct r300_context* r300);
 402 void r300_init_tex_functions( struct pipe_context *pipe );
 403
 404 static INLINE boolean CTX_DBG_ON(struct r300_context * ctx, unsigned flags)
 405 {
 406     return SCREEN_DBG_ON(r300_screen(ctx->context.screen), flags);
 407 }
 408
 409 static INLINE void CTX_DBG(struct r300_context * ctx, unsigned flags,
 410                        const char * fmt, ...)
 411 {
 412     if (CTX_DBG_ON(ctx, flags)) {
 413         va_list va;
 414         va_start(va, fmt);
 415         vfprintf(stderr, fmt, va);
 416         va_end(va);
 417     }
 418 }
 419
 420 #define DBG_ON  CTX_DBG_ON
 421 #define DBG     CTX_DBG
 422
 423 #endif /* R300_CONTEXT_H */