src/mesa/state_tracker/st_context.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2003 VMware, Inc.
   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 VMWARE 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 ST_CONTEXT_H
  29 #define ST_CONTEXT_H
  30
  31 #include "main/arrayobj.h"
  32 #include "main/mtypes.h"
  33 #include "frontend/api.h"
  34 #include "main/fbobject.h"
  35 #include "state_tracker/st_atom.h"
  36 #include "util/u_helpers.h"
  37 #include "util/u_inlines.h"
  38 #include "util/list.h"
  39 #include "vbo/vbo.h"
  40 #include "util/list.h"
  41 #include "cso_cache/cso_context.h"
  42
  43
  44 #ifdef __cplusplus
  45 extern "C" {
  46 #endif
  47
  48
  49 struct dd_function_table;
  50 struct draw_context;
  51 struct draw_stage;
  52 struct gen_mipmap_state;
  53 struct st_context;
  54 struct st_program;
  55 struct st_perf_monitor_group;
  56 struct u_upload_mgr;
  57
  58
  59 struct st_bitmap_cache
  60 {
  61    /** Window pos to render the cached image */
  62    GLint xpos, ypos;
  63    /** Bounds of region used in window coords */
  64    GLint xmin, ymin, xmax, ymax;
  65
  66    GLfloat color[4];
  67
  68    /** Bitmap's Z position */
  69    GLfloat zpos;
  70
  71    struct pipe_resource *texture;
  72    struct pipe_transfer *trans;
  73
  74    GLboolean empty;
  75
  76    /** An I8 texture image: */
  77    ubyte *buffer;
  78 };
  79
  80 struct st_bound_handles
  81 {
  82    unsigned num_handles;
  83    uint64_t *handles;
  84 };
  85
  86
  87 #define NUM_DRAWPIX_CACHE_ENTRIES 4
  88
  89 struct drawpix_cache_entry
  90 {
  91    GLsizei width, height;
  92    GLenum format, type;
  93    const void *user_pointer;  /**< Last user 'pixels' pointer */
  94    void *image;               /**< Copy of the glDrawPixels image data */
  95    struct pipe_resource *texture;
  96    unsigned age;
  97 };
  98
  99
 100 /*
 101  * Node for a linked list of dead sampler views.
 102  */
 103 struct st_zombie_sampler_view_node
 104 {
 105    struct pipe_sampler_view *view;
 106    struct list_head node;
 107 };
 108
 109
 110 /*
 111  * Node for a linked list of dead shaders.
 112  */
 113 struct st_zombie_shader_node
 114 {
 115    void *shader;
 116    enum pipe_shader_type type;
 117    struct list_head node;
 118 };
 119
 120
 121 struct st_context
 122 {
 123    struct st_context_iface iface;
 124
 125    struct gl_context *ctx;
 126
 127    struct pipe_context *pipe;
 128
 129    struct draw_context *draw;  /**< For selection/feedback/rastpos only */
 130    struct draw_stage *feedback_stage;  /**< For GL_FEEDBACK rendermode */
 131    struct draw_stage *selection_stage;  /**< For GL_SELECT rendermode */
 132    struct draw_stage *rastpos_stage;  /**< For glRasterPos */
 133    GLboolean clamp_frag_color_in_shader;
 134    GLboolean clamp_vert_color_in_shader;
 135    boolean clamp_frag_depth_in_shader;
 136    boolean has_stencil_export; /**< can do shader stencil export? */
 137    boolean has_time_elapsed;
 138    boolean has_etc1;
 139    boolean has_etc2;
 140    boolean has_astc_2d_ldr;
 141    boolean has_astc_5x5_ldr;
 142    boolean prefer_blit_based_texture_transfer;
 143    boolean force_persample_in_shader;
 144    boolean has_shareable_shaders;
 145    boolean has_half_float_packing;
 146    boolean has_multi_draw_indirect;
 147    boolean has_single_pipe_stat;
 148    boolean has_indep_blend_func;
 149    boolean needs_rgb_dst_alpha_override;
 150    boolean can_bind_const_buffer_as_vertex;
 151    boolean lower_flatshade;
 152    boolean lower_alpha_test;
 153    boolean lower_point_size;
 154    boolean lower_two_sided_color;
 155    boolean lower_ucp;
 156
 157    /* There are consequences for drivers wanting to call st_finalize_nir
 158     * twice, once before shader caching and once after lowering for shader
 159     * variants. If shader variants use lowering passes that are not ready
 160     * for that, things can blow up.
 161     *
 162     * If this is true, st_finalize_nir and pipe_screen::finalize_nir will be
 163     * called before the result is stored in the shader cache. If lowering for
 164     * shader variants is invoked, the functions will be called again.
 165     */
 166    boolean allow_st_finalize_nir_twice;
 167
 168    /**
 169     * If a shader can be created when we get its source.
 170     * This means it has only 1 variant, not counting glBitmap and
 171     * glDrawPixels.
 172     */
 173    boolean shader_has_one_variant[MESA_SHADER_STAGES];
 174
 175    boolean needs_texcoord_semantic;
 176    boolean apply_texture_swizzle_to_border_color;
 177
 178    /* On old libGL's for linux we need to invalidate the drawables
 179     * on glViewpport calls, this is set via a option.
 180     */
 181    boolean invalidate_on_gl_viewport;
 182    boolean draw_needs_minmax_index;
 183    boolean has_hw_atomics;
 184
 185
 186    /* driver supports scissored clears */
 187    boolean can_scissor_clear;
 188
 189    /* Some state is contained in constant objects.
 190     * Other state is just parameter values.
 191     */
 192    struct {
 193       struct pipe_blend_state               blend;
 194       struct pipe_depth_stencil_alpha_state depth_stencil;
 195       struct pipe_rasterizer_state          rasterizer;
 196       struct pipe_sampler_state vert_samplers[PIPE_MAX_SAMPLERS];
 197       struct pipe_sampler_state frag_samplers[PIPE_MAX_SAMPLERS];
 198       GLuint num_vert_samplers;
 199       GLuint num_frag_samplers;
 200       struct pipe_sampler_view *vert_sampler_views[PIPE_MAX_SAMPLERS];
 201       struct pipe_sampler_view *frag_sampler_views[PIPE_MAX_SAMPLERS];
 202       GLuint num_sampler_views[PIPE_SHADER_TYPES];
 203       struct pipe_clip_state clip;
 204       struct {
 205          void *ptr;
 206          unsigned size;
 207       } constants[PIPE_SHADER_TYPES];
 208       unsigned fb_width;
 209       unsigned fb_height;
 210       unsigned fb_num_samples;
 211       unsigned fb_num_layers;
 212       unsigned fb_num_cb;
 213       unsigned num_viewports;
 214       struct pipe_scissor_state scissor[PIPE_MAX_VIEWPORTS];
 215       struct pipe_viewport_state viewport[PIPE_MAX_VIEWPORTS];
 216       struct {
 217          unsigned num;
 218          boolean include;
 219          struct pipe_scissor_state rects[PIPE_MAX_WINDOW_RECTANGLES];
 220       } window_rects;
 221
 222       GLuint poly_stipple[32];  /**< In OpenGL's bottom-to-top order */
 223
 224       GLuint fb_orientation;
 225
 226       bool enable_sample_locations;
 227       unsigned sample_locations_samples;
 228       uint8_t sample_locations[
 229          PIPE_MAX_SAMPLE_LOCATION_GRID_SIZE *
 230          PIPE_MAX_SAMPLE_LOCATION_GRID_SIZE * 32];
 231    } state;
 232
 233    uint64_t dirty; /**< dirty states */
 234
 235    /** This masks out unused shader resources. Only valid in draw calls. */
 236    uint64_t active_states;
 237
 238    unsigned pin_thread_counter; /* for L3 thread pinning on AMD Zen */
 239
 240    /* If true, further analysis of states is required to know if something
 241     * has changed. Used mainly for shaders.
 242     */
 243    bool gfx_shaders_may_be_dirty;
 244    bool compute_shader_may_be_dirty;
 245
 246    GLboolean vertdata_edgeflags;
 247    GLboolean edgeflag_culls_prims;
 248
 249    /**
 250     * The number of currently active queries (excluding timer queries).
 251     * This is used to know if we need to pause any queries for meta ops.
 252     */
 253    unsigned active_queries;
 254
 255    union {
 256       struct {
 257          struct st_program *vp;    /**< Currently bound vertex program */
 258          struct st_program *tcp; /**< Currently bound tess control program */
 259          struct st_program *tep; /**< Currently bound tess eval program */
 260          struct st_program *gp;  /**< Currently bound geometry program */
 261          struct st_program *fp;  /**< Currently bound fragment program */
 262          struct st_program *cp;   /**< Currently bound compute program */
 263       };
 264       struct gl_program *current_program[MESA_SHADER_STAGES];
 265    };
 266
 267    struct st_common_variant *vp_variant;
 268
 269    struct {
 270       struct pipe_resource *pixelmap_texture;
 271       struct pipe_sampler_view *pixelmap_sampler_view;
 272    } pixel_xfer;
 273
 274    /** for glBitmap */
 275    struct {
 276       struct pipe_rasterizer_state rasterizer;
 277       struct pipe_sampler_state sampler;
 278       struct pipe_sampler_state atlas_sampler;
 279       enum pipe_format tex_format;
 280       struct st_bitmap_cache cache;
 281    } bitmap;
 282
 283    /** for glDraw/CopyPixels */
 284    struct {
 285       void *zs_shaders[6];
 286    } drawpix;
 287
 288    /** Cache of glDrawPixels images */
 289    struct {
 290       struct drawpix_cache_entry entries[NUM_DRAWPIX_CACHE_ENTRIES];
 291       unsigned age;
 292    } drawpix_cache;
 293
 294    /** for glReadPixels */
 295    struct {
 296       struct pipe_resource *src;
 297       struct pipe_resource *cache;
 298       enum pipe_format dst_format;
 299       unsigned level;
 300       unsigned layer;
 301       unsigned hits;
 302    } readpix_cache;
 303
 304    /** for glClear */
 305    struct {
 306       struct pipe_rasterizer_state raster;
 307       struct pipe_viewport_state viewport;
 308       void *vs;
 309       void *fs;
 310       void *vs_layered;
 311       void *gs_layered;
 312    } clear;
 313
 314    /* For gl(Compressed)Tex(Sub)Image */
 315    struct {
 316       struct pipe_rasterizer_state raster;
 317       struct pipe_blend_state upload_blend;
 318       void *vs;
 319       void *gs;
 320       void *upload_fs[3];
 321       void *download_fs[3][PIPE_MAX_TEXTURE_TYPES];
 322       bool upload_enabled;
 323       bool download_enabled;
 324       bool rgba_only;
 325       bool layers;
 326       bool use_gs;
 327    } pbo;
 328
 329    /** for drawing with st_util_vertex */
 330    struct cso_velems_state util_velems;
 331
 332    /** passthrough vertex shader matching the util_velem attributes */
 333    void *passthrough_vs;
 334
 335    enum pipe_texture_target internal_target;
 336
 337    struct cso_context *cso_context;
 338
 339    void *winsys_drawable_handle;
 340
 341    /* The number of vertex buffers from the last call of validate_arrays. */
 342    unsigned last_num_vbuffers;
 343
 344    unsigned last_used_atomic_bindings[PIPE_SHADER_TYPES];
 345    unsigned last_num_ssbos[PIPE_SHADER_TYPES];
 346
 347    int32_t draw_stamp;
 348    int32_t read_stamp;
 349
 350    struct st_config_options options;
 351
 352    struct st_perf_monitor_group *perfmon;
 353
 354    enum pipe_reset_status reset_status;
 355
 356    /* Array of bound texture/image handles which are resident in the context.
 357     */
 358    struct st_bound_handles bound_texture_handles[PIPE_SHADER_TYPES];
 359    struct st_bound_handles bound_image_handles[PIPE_SHADER_TYPES];
 360
 361    /* Winsys buffers */
 362    struct list_head winsys_buffers;
 363
 364    /* Throttling for texture uploads and similar operations to limit memory
 365     * usage by limiting the number of in-flight operations based on
 366     * the estimated allocated size needed to execute those operations.
 367     */
 368    struct util_throttle throttle;
 369
 370    struct {
 371       struct st_zombie_sampler_view_node list;
 372       simple_mtx_t mutex;
 373    } zombie_sampler_views;
 374
 375    struct {
 376       struct st_zombie_shader_node list;
 377       simple_mtx_t mutex;
 378    } zombie_shaders;
 379
 380 };
 381
 382
 383 /*
 384  * Get the state tracker context for the given Mesa context.
 385  */
 386 static inline struct st_context *
 387 st_context(struct gl_context *ctx)
 388 {
 389    return ctx->st;
 390 }
 391
 392
 393 extern struct st_context *
 394 st_create_context(gl_api api, struct pipe_context *pipe,
 395                   const struct gl_config *visual,
 396                   struct st_context *share,
 397                   const struct st_config_options *options,
 398                   bool no_error);
 399
 400 extern void
 401 st_destroy_context(struct st_context *st);
 402
 403
 404 extern void
 405 st_invalidate_buffers(struct st_context *st);
 406
 407
 408 extern void
 409 st_save_zombie_sampler_view(struct st_context *st,
 410                             struct pipe_sampler_view *view);
 411
 412 extern void
 413 st_save_zombie_shader(struct st_context *st,
 414                       enum pipe_shader_type type,
 415                       struct pipe_shader_state *shader);
 416
 417
 418 void
 419 st_context_free_zombie_objects(struct st_context *st);
 420
 421
 422
 423 /**
 424  * Wrapper for struct gl_framebuffer.
 425  * This is an opaque type to the outside world.
 426  */
 427 struct st_framebuffer
 428 {
 429    struct gl_framebuffer Base;
 430
 431    struct st_framebuffer_iface *iface;
 432    enum st_attachment_type statts[ST_ATTACHMENT_COUNT];
 433    unsigned num_statts;
 434    int32_t stamp;
 435    int32_t iface_stamp;
 436    uint32_t iface_ID;
 437
 438    /* list of framebuffer objects */
 439    struct list_head head;
 440 };
 441
 442
 443 #ifdef __cplusplus
 444 }
 445 #endif
 446
 447 #endif