i915_context.h revision 8e4540ec2a82e72be491bc8fe23c10551d29a96c
1 /************************************************************************** 2 * 3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28#ifndef I915_CONTEXT_H 29#define I915_CONTEXT_H 30 31 32#include "pipe/p_context.h" 33#include "pipe/p_defines.h" 34#include "pipe/p_state.h" 35 36#include "draw/draw_vertex.h" 37 38#include "tgsi/tgsi_scan.h" 39 40#include "util/u_slab.h" 41#include "util/u_blitter.h" 42 43 44struct i915_winsys; 45struct i915_winsys_buffer; 46struct i915_winsys_batchbuffer; 47 48 49#define I915_TEX_UNITS 8 50 51#define I915_DYNAMIC_MODES4 0 52#define I915_DYNAMIC_DEPTHSCALE_0 1 /* just the header */ 53#define I915_DYNAMIC_DEPTHSCALE_1 2 54#define I915_DYNAMIC_IAB 3 55#define I915_DYNAMIC_BC_0 4 /* just the header */ 56#define I915_DYNAMIC_BC_1 5 57#define I915_DYNAMIC_BFO_0 6 58#define I915_DYNAMIC_BFO_1 7 59#define I915_DYNAMIC_STP_0 8 60#define I915_DYNAMIC_STP_1 9 61#define I915_DYNAMIC_SC_ENA_0 10 62#define I915_DYNAMIC_SC_RECT_0 11 63#define I915_DYNAMIC_SC_RECT_1 12 64#define I915_DYNAMIC_SC_RECT_2 13 65#define I915_MAX_DYNAMIC 14 66 67 68#define I915_IMMEDIATE_S0 0 69#define I915_IMMEDIATE_S1 1 70#define I915_IMMEDIATE_S2 2 71#define I915_IMMEDIATE_S3 3 72#define I915_IMMEDIATE_S4 4 73#define I915_IMMEDIATE_S5 5 74#define I915_IMMEDIATE_S6 6 75#define I915_IMMEDIATE_S7 7 76#define I915_MAX_IMMEDIATE 8 77 78/* These must mach the order of LI0_STATE_* bits, as they will be used 79 * to generate hardware packets: 80 */ 81#define I915_CACHE_STATIC 0 82#define I915_CACHE_DYNAMIC 1 /* handled specially */ 83#define I915_CACHE_SAMPLER 2 84#define I915_CACHE_MAP 3 85#define I915_CACHE_PROGRAM 4 86#define I915_CACHE_CONSTANTS 5 87#define I915_MAX_CACHE 6 88 89#define I915_MAX_CONSTANT 32 90 91 92/** See constant_flags[] below */ 93#define I915_CONSTFLAG_USER 0x1f 94 95 96/** 97 * Subclass of pipe_shader_state 98 */ 99struct i915_fragment_shader 100{ 101 struct pipe_shader_state state; 102 103 struct tgsi_shader_info info; 104 105 struct draw_fragment_shader *draw_data; 106 107 uint *decl; 108 uint decl_len; 109 110 uint *program; 111 uint program_len; 112 113 /** 114 * constants introduced during translation. 115 * These are placed at the end of the constant buffer and grow toward 116 * the beginning (eg: slot 31, 30 29, ...) 117 * User-provided constants start at 0. 118 * This allows both types of constants to co-exist (until there's too many) 119 * and doesn't require regenerating/changing the fragment program to 120 * shuffle constants around. 121 */ 122 uint num_constants; 123 float constants[I915_MAX_CONSTANT][4]; 124 125 /** 126 * Status of each constant 127 * if I915_CONSTFLAG_PARAM, the value must be taken from the corresponding 128 * slot of the user's constant buffer. (set by pipe->set_constant_buffer()) 129 * Else, the bitmask indicates which components are occupied by immediates. 130 */ 131 ubyte constant_flags[I915_MAX_CONSTANT]; 132 133 /** 134 * The mapping between generics and hw texture coords. 135 * We need to share this between the vertex and fragment stages. 136 **/ 137 int generic_mapping[I915_TEX_UNITS]; 138}; 139 140 141struct i915_cache_context; 142 143/* Use to calculate differences between state emitted to hardware and 144 * current driver-calculated state. 145 */ 146struct i915_state 147{ 148 unsigned immediate[I915_MAX_IMMEDIATE]; 149 unsigned dynamic[I915_MAX_DYNAMIC]; 150 151 /** number of constants passed in through a constant buffer */ 152 uint num_user_constants[PIPE_SHADER_TYPES]; 153 154 /* texture sampler state */ 155 unsigned sampler[I915_TEX_UNITS][3]; 156 unsigned sampler_enable_flags; 157 unsigned sampler_enable_nr; 158 159 /* texture image buffers */ 160 unsigned texbuffer[I915_TEX_UNITS][2]; 161 162 /** Describes the current hardware vertex layout */ 163 struct vertex_info vertex_info; 164 165 /* static state (dst/depth buffer state) */ 166 struct i915_winsys_buffer *cbuf_bo; 167 unsigned cbuf_flags; 168 struct i915_winsys_buffer *depth_bo; 169 unsigned depth_flags; 170 unsigned dst_buf_vars; 171 uint32_t draw_offset; 172 uint32_t draw_size; 173 uint32_t target_fixup_format; 174 uint32_t fixup_swizzle; 175 176 unsigned id; /* track lost context events */ 177}; 178 179struct i915_blend_state { 180 unsigned iab; 181 unsigned modes4; 182 unsigned LIS5; 183 unsigned LIS6; 184}; 185 186struct i915_depth_stencil_state { 187 unsigned stencil_modes4; 188 unsigned bfo[2]; 189 unsigned stencil_LIS5; 190 unsigned depth_LIS6; 191}; 192 193struct i915_rasterizer_state { 194 struct pipe_rasterizer_state templ; 195 196 unsigned light_twoside : 1; 197 unsigned st; 198 enum interp_mode color_interp; 199 200 unsigned LIS4; 201 unsigned LIS7; 202 unsigned sc[1]; 203 204 union { float f; unsigned u; } ds[2]; 205}; 206 207struct i915_sampler_state { 208 struct pipe_sampler_state templ; 209 unsigned state[3]; 210 unsigned minlod; 211 unsigned maxlod; 212}; 213 214struct i915_velems_state { 215 unsigned count; 216 struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS]; 217}; 218 219 220struct i915_context { 221 struct pipe_context base; 222 223 struct i915_winsys *iws; 224 225 struct draw_context *draw; 226 227 /* The most recent drawing state as set by the driver: 228 */ 229 const struct i915_blend_state *blend; 230 const struct i915_sampler_state *sampler[PIPE_MAX_SAMPLERS]; 231 struct pipe_sampler_state *vertex_samplers[PIPE_MAX_VERTEX_SAMPLERS]; 232 const struct i915_depth_stencil_state *depth_stencil; 233 const struct i915_rasterizer_state *rasterizer; 234 235 struct i915_fragment_shader *fs; 236 237 struct pipe_blend_color blend_color; 238 struct pipe_stencil_ref stencil_ref; 239 struct pipe_clip_state clip; 240 struct pipe_resource *constants[PIPE_SHADER_TYPES]; 241 struct pipe_framebuffer_state framebuffer; 242 struct pipe_poly_stipple poly_stipple; 243 struct pipe_scissor_state scissor; 244 struct pipe_sampler_view *fragment_sampler_views[PIPE_MAX_SAMPLERS]; 245 struct pipe_sampler_view *vertex_sampler_views[PIPE_MAX_SAMPLERS]; 246 struct pipe_viewport_state viewport; 247 struct pipe_index_buffer index_buffer; 248 249 unsigned dirty; 250 251 struct pipe_resource *mapped_vs_tex[PIPE_MAX_VERTEX_SAMPLERS]; 252 struct i915_winsys_buffer* mapped_vs_tex_buffer[PIPE_MAX_VERTEX_SAMPLERS]; 253 254 unsigned num_samplers; 255 unsigned num_fragment_sampler_views; 256 unsigned num_vertex_samplers; 257 unsigned num_vertex_sampler_views; 258 259 struct i915_winsys_batchbuffer *batch; 260 261 /** Vertex buffer */ 262 struct i915_winsys_buffer *vbo; 263 size_t vbo_offset; 264 unsigned vbo_flushed; 265 266 struct i915_state current; 267 unsigned hardware_dirty; 268 unsigned immediate_dirty : I915_MAX_IMMEDIATE; 269 unsigned dynamic_dirty : I915_MAX_DYNAMIC; 270 unsigned static_dirty : 4; 271 unsigned flush_dirty : 2; 272 273 struct i915_winsys_buffer *validation_buffers[2 + 1 + I915_TEX_UNITS]; 274 int num_validation_buffers; 275 276 struct util_slab_mempool transfer_pool; 277 struct util_slab_mempool texture_transfer_pool; 278 279 /* state for tracking flushes */ 280 int last_fired_vertices; 281 int fired_vertices; 282 int queued_vertices; 283 284 /** blitter/hw-clear */ 285 struct blitter_context* blitter; 286 287 /** State tracking needed by u_blitter for save/restore. */ 288 void *saved_fs; 289 void (*saved_bind_fs_state)(struct pipe_context *pipe, void *shader); 290 void *saved_vs; 291 struct pipe_clip_state saved_clip; 292 struct i915_velems_state *saved_velems; 293 unsigned saved_nr_vertex_buffers; 294 struct pipe_vertex_buffer saved_vertex_buffers[PIPE_MAX_ATTRIBS]; 295 unsigned saved_nr_samplers; 296 void *saved_samplers[PIPE_MAX_SAMPLERS]; 297 void (*saved_bind_sampler_states)(struct pipe_context *pipe, 298 unsigned num, void **sampler); 299 unsigned saved_nr_sampler_views; 300 struct pipe_sampler_view *saved_sampler_views[PIPE_MAX_SAMPLERS]; 301 void (*saved_set_sampler_views)(struct pipe_context *pipe, 302 unsigned num, struct pipe_sampler_view **views); 303}; 304 305/* A flag for each state_tracker state object: 306 */ 307#define I915_NEW_VIEWPORT 0x1 308#define I915_NEW_RASTERIZER 0x2 309#define I915_NEW_FS 0x4 310#define I915_NEW_BLEND 0x8 311#define I915_NEW_CLIP 0x10 312#define I915_NEW_SCISSOR 0x20 313#define I915_NEW_STIPPLE 0x40 314#define I915_NEW_FRAMEBUFFER 0x80 315#define I915_NEW_ALPHA_TEST 0x100 316#define I915_NEW_DEPTH_STENCIL 0x200 317#define I915_NEW_SAMPLER 0x400 318#define I915_NEW_SAMPLER_VIEW 0x800 319#define I915_NEW_VS_CONSTANTS 0x1000 320#define I915_NEW_FS_CONSTANTS 0x2000 321#define I915_NEW_GS_CONSTANTS 0x4000 322#define I915_NEW_VBO 0x8000 323#define I915_NEW_VS 0x10000 324 325 326/* Driver's internally generated state flags: 327 */ 328#define I915_NEW_VERTEX_FORMAT 0x10000 329 330 331/* Dirty flags for hardware emit 332 */ 333#define I915_HW_STATIC (1<<I915_CACHE_STATIC) 334#define I915_HW_DYNAMIC (1<<I915_CACHE_DYNAMIC) 335#define I915_HW_SAMPLER (1<<I915_CACHE_SAMPLER) 336#define I915_HW_MAP (1<<I915_CACHE_MAP) 337#define I915_HW_PROGRAM (1<<I915_CACHE_PROGRAM) 338#define I915_HW_CONSTANTS (1<<I915_CACHE_CONSTANTS) 339#define I915_HW_IMMEDIATE (1<<(I915_MAX_CACHE+0)) 340#define I915_HW_INVARIANT (1<<(I915_MAX_CACHE+1)) 341#define I915_HW_FLUSH (1<<(I915_MAX_CACHE+1)) 342 343/* hw flush handling */ 344#define I915_FLUSH_CACHE 1 345#define I915_PIPELINE_FLUSH 2 346 347/* split up static state */ 348#define I915_DST_BUF_COLOR 1 349#define I915_DST_BUF_DEPTH 2 350#define I915_DST_VARS 4 351#define I915_DST_RECT 8 352 353static INLINE 354void i915_set_flush_dirty(struct i915_context *i915, unsigned flush) 355{ 356 i915->hardware_dirty |= I915_HW_FLUSH; 357 i915->flush_dirty |= flush; 358} 359 360 361/*********************************************************************** 362 * i915_prim_emit.c: 363 */ 364struct draw_stage *i915_draw_render_stage( struct i915_context *i915 ); 365 366 367/*********************************************************************** 368 * i915_prim_vbuf.c: 369 */ 370struct draw_stage *i915_draw_vbuf_stage( struct i915_context *i915 ); 371 372 373/*********************************************************************** 374 * i915_state.c: 375 */ 376void i915_prepare_vertex_sampling(struct i915_context *i915); 377void i915_cleanup_vertex_sampling(struct i915_context *i915); 378 379 380 381/*********************************************************************** 382 * i915_state_emit.c: 383 */ 384void i915_emit_hardware_state(struct i915_context *i915 ); 385 386 387 388/*********************************************************************** 389 * i915_clear.c: 390 */ 391void i915_clear_blitter(struct pipe_context *pipe, unsigned buffers, 392 const union pipe_color_union *color, 393 double depth, unsigned stencil); 394void i915_clear_render(struct pipe_context *pipe, unsigned buffers, 395 const union pipe_color_union *color, 396 double depth, unsigned stencil); 397void i915_clear_emit(struct pipe_context *pipe, unsigned buffers, 398 const union pipe_color_union *color, 399 double depth, unsigned stencil, 400 unsigned destx, unsigned desty, unsigned width, unsigned height); 401 402 403/*********************************************************************** 404 * 405 */ 406void i915_init_state_functions( struct i915_context *i915 ); 407void i915_init_fixup_state_functions( struct i915_context *i915 ); 408void i915_init_flush_functions( struct i915_context *i915 ); 409void i915_init_string_functions( struct i915_context *i915 ); 410 411 412/************************************************************************ 413 * i915_context.c 414 */ 415struct pipe_context *i915_create_context(struct pipe_screen *screen, 416 void *priv); 417 418 419/*********************************************************************** 420 * Inline conversion functions. These are better-typed than the 421 * macros used previously: 422 */ 423static INLINE struct i915_context * 424i915_context( struct pipe_context *pipe ) 425{ 426 return (struct i915_context *)pipe; 427} 428 429 430#endif 431