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     /* Opaque state. */
  49     void* state;
  50     /* Emit the state to the context. */
  51     void (*emit)(struct r300_context*, unsigned, void*);
  52     /* Upper bound on number of dwords to emit. */
  53     unsigned size;
  54     /* Whether this atom should be emitted. */
  55     boolean dirty;
  56     /* Another dirty flag that is never automatically cleared. */
  57     boolean always_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 line_control;          /* R300_GA_LINE_CNTL: 0x4234 */
  98     float depth_scale;            /* R300_SU_POLY_OFFSET_FRONT_SCALE: 0x42a4 */
  99                                   /* R300_SU_POLY_OFFSET_BACK_SCALE: 0x42ac */
 100     float depth_offset;           /* R300_SU_POLY_OFFSET_FRONT_OFFSET: 0x42a8 */
 101                                   /* R300_SU_POLY_OFFSET_BACK_OFFSET: 0x42b0 */
 102     uint32_t polygon_offset_enable; /* R300_SU_POLY_OFFSET_ENABLE: 0x42b4 */
 103     uint32_t cull_mode;             /* R300_SU_CULL_MODE: 0x42b8 */
 104     uint32_t line_stipple_config;   /* R300_GA_LINE_STIPPLE_CONFIG: 0x4328 */
 105     uint32_t line_stipple_value;    /* R300_GA_LINE_STIPPLE_VALUE: 0x4260 */
 106     uint32_t color_control;         /* R300_GA_COLOR_CONTROL: 0x4278 */
 107     uint32_t polygon_mode;          /* R300_GA_POLY_MODE: 0x4288 */
 108 };
 109
 110 struct r300_rs_block {
 111     uint32_t ip[8]; /* R300_RS_IP_[0-7], R500_RS_IP_[0-7] */
 112     uint32_t count; /* R300_RS_COUNT */
 113     uint32_t inst_count; /* R300_RS_INST_COUNT */
 114     uint32_t inst[8]; /* R300_RS_INST_[0-7] */
 115 };
 116
 117 struct r300_sampler_state {
 118     struct pipe_sampler_state state;
 119
 120     uint32_t filter0;      /* R300_TX_FILTER0: 0x4400 */
 121     uint32_t filter1;      /* R300_TX_FILTER1: 0x4440 */
 122     uint32_t border_color; /* R300_TX_BORDER_COLOR: 0x45c0 */
 123
 124     /* Min/max LOD must be clamped to [0, last_level], thus
 125      * it's dependent on a currently bound texture */
 126     unsigned min_lod, max_lod;
 127 };
 128
 129 struct r300_texture_format_state {
 130     uint32_t format0; /* R300_TX_FORMAT0: 0x4480 */
 131     uint32_t format1; /* R300_TX_FORMAT1: 0x44c0 */
 132     uint32_t format2; /* R300_TX_FORMAT2: 0x4500 */
 133 };
 134
 135 struct r300_texture_fb_state {
 136     /* Colorbuffer. */
 137     uint32_t colorpitch[R300_MAX_TEXTURE_LEVELS]; /* R300_RB3D_COLORPITCH[0-3]*/
 138     uint32_t us_out_fmt; /* R300_US_OUT_FMT[0-3] */
 139
 140     /* Zbuffer. */
 141     uint32_t depthpitch[R300_MAX_TEXTURE_LEVELS]; /* R300_RB3D_DEPTHPITCH */
 142     uint32_t zb_format; /* R300_ZB_FORMAT */
 143 };
 144
 145 struct r300_textures_state {
 146     /* Textures. */
 147     struct pipe_sampler_view *fragment_sampler_views[16];
 148     int texture_count;
 149     /* Sampler states. */
 150     struct r300_sampler_state *sampler_states[16];
 151     int sampler_count;
 152
 153     /* These is the merge of the texture and sampler states. */
 154     unsigned count;
 155     uint32_t tx_enable;         /* R300_TX_ENABLE: 0x4101 */
 156     struct r300_texture_sampler_state {
 157         uint32_t format[3];     /* R300_TX_FORMAT[0-2] */
 158         uint32_t filter[2];     /* R300_TX_FILTER[0-1] */
 159         uint32_t border_color;  /* R300_TX_BORDER_COLOR: 0x45c0 */
 160         uint32_t tile_config;   /* R300_TX_OFFSET (subset thereof) */
 161     } regs[16];
 162 };
 163
 164 struct r300_vertex_stream_state {
 165     /* R300_VAP_PROG_STREAK_CNTL_[0-7] */
 166     uint32_t vap_prog_stream_cntl[8];
 167     /* R300_VAP_PROG_STREAK_CNTL_EXT_[0-7] */
 168     uint32_t vap_prog_stream_cntl_ext[8];
 169
 170     unsigned count;
 171 };
 172
 173 struct r300_vap_output_state {
 174     uint32_t vap_vtx_state_cntl;  /* R300_VAP_VTX_STATE_CNTL: 0x2180 */
 175     uint32_t vap_vsm_vtx_assm;    /* R300_VAP_VSM_VTX_ASSM: 0x2184 */
 176     uint32_t vap_out_vtx_fmt[2];  /* R300_VAP_OUTPUT_VTX_FMT_[0-1]: 0x2090 */
 177 };
 178
 179 struct r300_viewport_state {
 180     float xscale;         /* R300_VAP_VPORT_XSCALE:  0x2098 */
 181     float xoffset;        /* R300_VAP_VPORT_XOFFSET: 0x209c */
 182     float yscale;         /* R300_VAP_VPORT_YSCALE:  0x20a0 */
 183     float yoffset;        /* R300_VAP_VPORT_YOFFSET: 0x20a4 */
 184     float zscale;         /* R300_VAP_VPORT_ZSCALE:  0x20a8 */
 185     float zoffset;        /* R300_VAP_VPORT_ZOFFSET: 0x20ac */
 186     uint32_t vte_control; /* R300_VAP_VTE_CNTL:      0x20b0 */
 187 };
 188
 189 struct r300_ztop_state {
 190     uint32_t z_buffer_top;      /* R300_ZB_ZTOP: 0x4f14 */
 191 };
 192
 193 /* The next several objects are not pure Radeon state; they inherit from
 194  * various Gallium classes. */
 195
 196 struct r300_constant_buffer {
 197     /* Buffer of constants */
 198     float constants[256][4];
 199     /* Total number of constants */
 200     unsigned count;
 201 };
 202
 203 /* Query object.
 204  *
 205  * This is not a subclass of pipe_query because pipe_query is never
 206  * actually fully defined. So, rather than have it as a member, and do
 207  * subclass-style casting, we treat pipe_query as an opaque, and just
 208  * trust that our state tracker does not ever mess up query objects.
 209  */
 210 struct r300_query {
 211     /* The kind of query. Currently only OQ is supported. */
 212     unsigned type;
 213     /* Whether this query is currently active. Only active queries will
 214      * get emitted into the command stream, and only active queries get
 215      * tallied. */
 216     boolean active;
 217     /* The current count of this query. Required to be at least 32 bits. */
 218     unsigned int count;
 219     /* The offset of this query into the query buffer, in bytes. */
 220     unsigned offset;
 221     /* if we've flushed the query */
 222     boolean flushed;
 223     /* if begin has been emitted */
 224     boolean begin_emitted;
 225     /* Linked list members. */
 226     struct r300_query* prev;
 227     struct r300_query* next;
 228 };
 229
 230 struct r300_texture {
 231     /* Parent class */
 232     struct u_resource b;
 233
 234     /* Offsets into the buffer. */
 235     unsigned offset[R300_MAX_TEXTURE_LEVELS];
 236
 237     /* A pitch for each mip-level */
 238     unsigned pitch[R300_MAX_TEXTURE_LEVELS];
 239
 240     /* Size of one zslice or face based on the texture target */
 241     unsigned layer_size[R300_MAX_TEXTURE_LEVELS];
 242
 243     /* Whether the mipmap level is macrotiled. */
 244     enum r300_buffer_tiling mip_macrotile[R300_MAX_TEXTURE_LEVELS];
 245
 246     /**
 247      * If non-zero, override the natural texture layout with
 248      * a custom stride (in bytes).
 249      *
 250      * \note Mipmapping fails for textures with a non-natural layout!
 251      *
 252      * \sa r300_texture_get_stride
 253      */
 254     unsigned stride_override;
 255
 256     /* Total size of this texture, in bytes. */
 257     unsigned size;
 258
 259     /* Whether this texture has non-power-of-two dimensions
 260      * or a user-specified pitch.
 261      * It can be either a regular texture or a rectangle one.
 262      */
 263     boolean uses_pitch;
 264
 265     /* Pipe buffer backing this texture. */
 266     struct r300_winsys_buffer *buffer;
 267
 268     /* Registers carrying texture format data. */
 269     struct r300_texture_format_state state;
 270     struct r300_texture_fb_state fb_state;
 271
 272     /* Buffer tiling */
 273     enum r300_buffer_tiling microtile, macrotile;
 274 };
 275
 276 struct r300_vertex_info {
 277     /* Parent class */
 278     struct vertex_info vinfo;
 279
 280     /* R300_VAP_PROG_STREAK_CNTL_[0-7] */
 281     uint32_t vap_prog_stream_cntl[8];
 282     /* R300_VAP_PROG_STREAK_CNTL_EXT_[0-7] */
 283     uint32_t vap_prog_stream_cntl_ext[8];
 284 };
 285
 286 struct r300_vertex_element_state {
 287     unsigned count;
 288     struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
 289
 290     struct r300_vertex_stream_state vertex_stream;
 291 };
 292
 293 extern struct pipe_viewport_state r300_viewport_identity;
 294
 295 struct r300_context {
 296     /* Parent class */
 297     struct pipe_context context;
 298
 299     /* Emission of drawing packets. */
 300     void (*emit_draw_arrays_immediate)(
 301             struct r300_context *r300,
 302             unsigned mode, unsigned start, unsigned count);
 303
 304     void (*emit_draw_arrays)(
 305             struct r300_context *r300,
 306             unsigned mode, unsigned count);
 307
 308     void (*emit_draw_elements)(
 309             struct r300_context *r300, struct pipe_resource* indexBuffer,
 310             unsigned indexSize, unsigned minIndex, unsigned maxIndex,
 311             unsigned mode, unsigned start, unsigned count);
 312
 313
 314     /* The interface to the windowing system, etc. */
 315     struct r300_winsys_screen *rws;
 316     /* Screen. */
 317     struct r300_screen *screen;
 318     /* Draw module. Used mostly for SW TCL. */
 319     struct draw_context* draw;
 320     /* Accelerated blit support. */
 321     struct blitter_context* blitter;
 322
 323     /* Vertex buffer for rendering. */
 324     struct pipe_resource* vbo;
 325     /* Offset into the VBO. */
 326     size_t vbo_offset;
 327
 328     /* Occlusion query buffer. */
 329     struct pipe_resource* oqbo;
 330     /* Query list. */
 331     struct r300_query *query_current;
 332     struct r300_query query_list;
 333
 334     /* Various CSO state objects. */
 335     /* Beginning of atom list. */
 336     struct r300_atom atom_list;
 337     /* Blend state. */
 338     struct r300_atom blend_state;
 339     /* Blend color state. */
 340     struct r300_atom blend_color_state;
 341     /* User clip planes. */
 342     struct r300_atom clip_state;
 343     /* Shader constants. */
 344     struct r300_constant_buffer shader_constants[PIPE_SHADER_TYPES];
 345     /* Depth, stencil, and alpha state. */
 346     struct r300_atom dsa_state;
 347     /* Fragment shader. */
 348     struct r300_fragment_shader* fs;
 349     /* Framebuffer state. */
 350     struct r300_atom fb_state;
 351     /* Rasterizer state. */
 352     struct r300_atom rs_state;
 353     /* RS block state. */
 354     struct r300_atom rs_block_state;
 355     /* Scissor state. */
 356     struct r300_atom scissor_state;
 357     /* Textures state. */
 358     struct r300_atom textures_state;
 359     /* Vertex stream formatting state. */
 360     struct r300_atom vertex_stream_state;
 361     /* VAP (vertex shader) output mapping state. */
 362     struct r300_atom vap_output_state;
 363     /* Vertex shader. */
 364     struct r300_atom vs_state;
 365     /* Viewport state. */
 366     struct r300_atom viewport_state;
 367     /* ZTOP state. */
 368     struct r300_atom ztop_state;
 369     /* PVS flush. */
 370     struct r300_atom pvs_flush;
 371     /* Texture cache invalidate. */
 372     struct r300_atom texture_cache_inval;
 373
 374     /* Invariant state. This must be emitted to get the engine started. */
 375     struct r300_atom invariant_state;
 376
 377     /* Vertex buffers for Gallium. */
 378     struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
 379     int vertex_buffer_count;
 380     int vertex_buffer_max_index;
 381     /* Vertex elements for Gallium. */
 382     struct r300_vertex_element_state *velems;
 383     bool any_user_vbs;
 384
 385     /* Vertex info for Draw. */
 386     struct vertex_info vertex_info;
 387
 388     struct pipe_stencil_ref stencil_ref;
 389
 390     struct pipe_clip_state clip;
 391
 392     struct pipe_viewport_state viewport;
 393
 394     /* Bitmask of dirty state objects. */
 395     uint32_t dirty_state;
 396     /* Flag indicating whether or not the HW is dirty. */
 397     uint32_t dirty_hw;
 398     /* Whether polygon offset is enabled. */
 399     boolean polygon_offset_enabled;
 400     /* Z buffer bit depth. */
 401     uint32_t zbuffer_bpp;
 402     /* Whether scissor is enabled. */
 403     boolean scissor_enabled;
 404     /* Whether rendering is conditional and should be skipped. */
 405     boolean skip_rendering;
 406     /* Whether the two-sided stencil ref value is different for front and
 407      * back faces, and fallback should be used for r3xx-r4xx. */
 408     boolean stencil_ref_bf_fallback;
 409     /* upload managers */
 410     struct u_upload_mgr *upload_vb;
 411     struct u_upload_mgr *upload_ib;
 412 };
 413
 414 /* Convenience cast wrapper. */
 415 static INLINE struct r300_texture* r300_texture(struct pipe_resource* tex)
 416 {
 417     return (struct r300_texture*)tex;
 418 }
 419
 420 static INLINE struct r300_context* r300_context(struct pipe_context* context)
 421 {
 422     return (struct r300_context*)context;
 423 }
 424
 425
 426 struct pipe_context* r300_create_context(struct pipe_screen* screen,
 427                                          void *priv);
 428
 429 /* Context initialization. */
 430 struct draw_stage* r300_draw_stage(struct r300_context* r300);
 431 void r300_init_state_functions(struct r300_context* r300);
 432 void r300_init_resource_functions(struct r300_context* r300);
 433
 434 static INLINE boolean CTX_DBG_ON(struct r300_context * ctx, unsigned flags)
 435 {
 436     return SCREEN_DBG_ON(ctx->screen, flags);
 437 }
 438
 439 static INLINE void CTX_DBG(struct r300_context * ctx, unsigned flags,
 440                        const char * fmt, ...)
 441 {
 442     if (CTX_DBG_ON(ctx, flags)) {
 443         va_list va;
 444         va_start(va, fmt);
 445         vfprintf(stderr, fmt, va);
 446         va_end(va);
 447     }
 448 }
 449
 450 #define DBG_ON  CTX_DBG_ON
 451 #define DBG     CTX_DBG
 452
 453 #endif /* R300_CONTEXT_H */