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    struct st_vertex_program *vp;    /**< Currently bound vertex program */
 226    struct st_fragment_program *fp;  /**< Currently bound fragment program */
 227    struct st_common_program *gp;  /**< Currently bound geometry program */
 228    struct st_common_program *tcp; /**< Currently bound tess control program */
 229    struct st_common_program *tep; /**< Currently bound tess eval program */
 230    struct st_compute_program *cp;   /**< Currently bound compute program */
 231
 232    struct st_vp_variant *vp_variant;
 233
 234    struct {
 235       struct pipe_resource *pixelmap_texture;
 236       struct pipe_sampler_view *pixelmap_sampler_view;
 237    } pixel_xfer;
 238
 239    /** for glBitmap */
 240    struct {
 241       struct pipe_rasterizer_state rasterizer;
 242       struct pipe_sampler_state sampler;
 243       struct pipe_sampler_state atlas_sampler;
 244       enum pipe_format tex_format;
 245       struct st_bitmap_cache cache;
 246    } bitmap;
 247
 248    /** for glDraw/CopyPixels */
 249    struct {
 250       void *zs_shaders[4];
 251    } drawpix;
 252
 253    /** Cache of glDrawPixels images */
 254    struct {
 255       struct drawpix_cache_entry entries[NUM_DRAWPIX_CACHE_ENTRIES];
 256       unsigned age;
 257    } drawpix_cache;
 258
 259    /** for glReadPixels */
 260    struct {
 261       struct pipe_resource *src;
 262       struct pipe_resource *cache;
 263       enum pipe_format dst_format;
 264       unsigned level;
 265       unsigned layer;
 266       unsigned hits;
 267    } readpix_cache;
 268
 269    /** for glClear */
 270    struct {
 271       struct pipe_rasterizer_state raster;
 272       struct pipe_viewport_state viewport;
 273       void *vs;
 274       void *fs;
 275       void *vs_layered;
 276       void *gs_layered;
 277    } clear;
 278
 279    /* For gl(Compressed)Tex(Sub)Image */
 280    struct {
 281       struct pipe_rasterizer_state raster;
 282       struct pipe_blend_state upload_blend;
 283       void *vs;
 284       void *gs;
 285       void *upload_fs[3];
 286       void *download_fs[3][PIPE_MAX_TEXTURE_TYPES];
 287       bool upload_enabled;
 288       bool download_enabled;
 289       bool rgba_only;
 290       bool layers;
 291       bool use_gs;
 292    } pbo;
 293
 294    /** for drawing with st_util_vertex */
 295    struct pipe_vertex_element util_velems[3];
 296
 297    /** passthrough vertex shader matching the util_velem attributes */
 298    void *passthrough_vs;
 299
 300    enum pipe_texture_target internal_target;
 301
 302    struct cso_context *cso_context;
 303
 304    void *winsys_drawable_handle;
 305
 306    /* The number of vertex buffers from the last call of validate_arrays. */
 307    unsigned last_num_vbuffers;
 308
 309    int32_t draw_stamp;
 310    int32_t read_stamp;
 311
 312    struct st_config_options options;
 313
 314    struct st_perf_monitor_group *perfmon;
 315
 316    enum pipe_reset_status reset_status;
 317
 318    /* Array of bound texture/image handles which are resident in the context.
 319     */
 320    struct st_bound_handles bound_texture_handles[PIPE_SHADER_TYPES];
 321    struct st_bound_handles bound_image_handles[PIPE_SHADER_TYPES];
 322
 323    /* Winsys buffers */
 324    struct list_head winsys_buffers;
 325
 326    /* Throttling for texture uploads and similar operations to limit memory
 327     * usage by limiting the number of in-flight operations based on
 328     * the estimated allocated size needed to execute those operations.
 329     */
 330    struct util_throttle throttle;
 331
 332    struct {
 333       struct st_zombie_sampler_view_node list;
 334       mtx_t mutex;
 335    } zombie_sampler_views;
 336
 337    struct {
 338       struct st_zombie_shader_node list;
 339       mtx_t mutex;
 340    } zombie_shaders;
 341
 342 };
 343
 344
 345 /*
 346  * Get the state tracker context for the given Mesa context.
 347  */
 348 static inline struct st_context *
 349 st_context(struct gl_context *ctx)
 350 {
 351    return ctx->st;
 352 }
 353
 354
 355 extern struct st_context *
 356 st_create_context(gl_api api, struct pipe_context *pipe,
 357                   const struct gl_config *visual,
 358                   struct st_context *share,
 359                   const struct st_config_options *options,
 360                   bool no_error);
 361
 362 extern void
 363 st_destroy_context(struct st_context *st);
 364
 365
 366 extern void
 367 st_invalidate_buffers(struct st_context *st);
 368
 369
 370 extern void
 371 st_save_zombie_sampler_view(struct st_context *st,
 372                             struct pipe_sampler_view *view);
 373
 374 extern void
 375 st_save_zombie_shader(struct st_context *st,
 376                       enum pipe_shader_type type,
 377                       struct pipe_shader_state *shader);
 378
 379
 380 void
 381 st_context_free_zombie_objects(struct st_context *st);
 382
 383
 384
 385 /**
 386  * Wrapper for struct gl_framebuffer.
 387  * This is an opaque type to the outside world.
 388  */
 389 struct st_framebuffer
 390 {
 391    struct gl_framebuffer Base;
 392
 393    struct st_framebuffer_iface *iface;
 394    enum st_attachment_type statts[ST_ATTACHMENT_COUNT];
 395    unsigned num_statts;
 396    int32_t stamp;
 397    int32_t iface_stamp;
 398    uint32_t iface_ID;
 399
 400    /* list of framebuffer objects */
 401    struct list_head head;
 402 };
 403
 404
 405 #ifdef __cplusplus
 406 }
 407 #endif
 408
 409 #endif