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