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 struct st_context
 110 {
 111    struct st_context_iface iface;
 112
 113    struct gl_context *ctx;
 114
 115    struct pipe_context *pipe;
 116
 117    struct draw_context *draw;  /**< For selection/feedback/rastpos only */
 118    struct draw_stage *feedback_stage;  /**< For GL_FEEDBACK rendermode */
 119    struct draw_stage *selection_stage;  /**< For GL_SELECT rendermode */
 120    struct draw_stage *rastpos_stage;  /**< For glRasterPos */
 121    GLboolean clamp_frag_color_in_shader;
 122    GLboolean clamp_vert_color_in_shader;
 123    boolean has_stencil_export; /**< can do shader stencil export? */
 124    boolean has_time_elapsed;
 125    boolean has_shader_model3;
 126    boolean has_etc1;
 127    boolean has_etc2;
 128    boolean has_astc_2d_ldr;
 129    boolean prefer_blit_based_texture_transfer;
 130    boolean force_persample_in_shader;
 131    boolean has_shareable_shaders;
 132    boolean has_half_float_packing;
 133    boolean has_multi_draw_indirect;
 134    boolean has_single_pipe_stat;
 135    boolean has_indep_blend_func;
 136    boolean needs_rgb_dst_alpha_override;
 137    boolean can_bind_const_buffer_as_vertex;
 138
 139    /**
 140     * If a shader can be created when we get its source.
 141     * This means it has only 1 variant, not counting glBitmap and
 142     * glDrawPixels.
 143     */
 144    boolean shader_has_one_variant[MESA_SHADER_STAGES];
 145
 146    boolean needs_texcoord_semantic;
 147    boolean apply_texture_swizzle_to_border_color;
 148
 149    /* On old libGL's for linux we need to invalidate the drawables
 150     * on glViewpport calls, this is set via a option.
 151     */
 152    boolean invalidate_on_gl_viewport;
 153    boolean draw_needs_minmax_index;
 154    boolean vertex_array_out_of_memory;
 155    boolean has_hw_atomics;
 156
 157    /* Some state is contained in constant objects.
 158     * Other state is just parameter values.
 159     */
 160    struct {
 161       struct pipe_blend_state               blend;
 162       struct pipe_depth_stencil_alpha_state depth_stencil;
 163       struct pipe_rasterizer_state          rasterizer;
 164       struct pipe_sampler_state frag_samplers[PIPE_MAX_SAMPLERS];
 165       GLuint num_frag_samplers;
 166       struct pipe_sampler_view *frag_sampler_views[PIPE_MAX_SAMPLERS];
 167       GLuint num_sampler_views[PIPE_SHADER_TYPES];
 168       struct pipe_clip_state clip;
 169       struct {
 170          void *ptr;
 171          unsigned size;
 172       } constants[PIPE_SHADER_TYPES];
 173       unsigned fb_width;
 174       unsigned fb_height;
 175       unsigned fb_num_samples;
 176       unsigned fb_num_layers;
 177       unsigned fb_num_cb;
 178       unsigned num_viewports;
 179       struct pipe_scissor_state scissor[PIPE_MAX_VIEWPORTS];
 180       struct pipe_viewport_state viewport[PIPE_MAX_VIEWPORTS];
 181       struct {
 182          unsigned num;
 183          boolean include;
 184          struct pipe_scissor_state rects[PIPE_MAX_WINDOW_RECTANGLES];
 185       } window_rects;
 186
 187       GLuint poly_stipple[32];  /**< In OpenGL's bottom-to-top order */
 188
 189       GLuint fb_orientation;
 190
 191       bool enable_sample_locations;
 192       unsigned sample_locations_samples;
 193       uint8_t sample_locations[
 194          PIPE_MAX_SAMPLE_LOCATION_GRID_SIZE *
 195          PIPE_MAX_SAMPLE_LOCATION_GRID_SIZE * 32];
 196    } state;
 197
 198    uint64_t dirty; /**< dirty states */
 199
 200    /** This masks out unused shader resources. Only valid in draw calls. */
 201    uint64_t active_states;
 202
 203    unsigned pin_thread_counter; /* for L3 thread pinning on AMD Zen */
 204
 205    /* If true, further analysis of states is required to know if something
 206     * has changed. Used mainly for shaders.
 207     */
 208    bool gfx_shaders_may_be_dirty;
 209    bool compute_shader_may_be_dirty;
 210
 211    GLboolean vertdata_edgeflags;
 212    GLboolean edgeflag_culls_prims;
 213
 214    struct st_vertex_program *vp;    /**< Currently bound vertex program */
 215    struct st_fragment_program *fp;  /**< Currently bound fragment program */
 216    struct st_common_program *gp;  /**< Currently bound geometry program */
 217    struct st_common_program *tcp; /**< Currently bound tess control program */
 218    struct st_common_program *tep; /**< Currently bound tess eval program */
 219    struct st_compute_program *cp;   /**< Currently bound compute program */
 220
 221    struct st_vp_variant *vp_variant;
 222
 223    struct {
 224       struct pipe_resource *pixelmap_texture;
 225       struct pipe_sampler_view *pixelmap_sampler_view;
 226    } pixel_xfer;
 227
 228    /** for glBitmap */
 229    struct {
 230       struct pipe_rasterizer_state rasterizer;
 231       struct pipe_sampler_state sampler;
 232       struct pipe_sampler_state atlas_sampler;
 233       enum pipe_format tex_format;
 234       struct st_bitmap_cache cache;
 235    } bitmap;
 236
 237    /** for glDraw/CopyPixels */
 238    struct {
 239       void *zs_shaders[4];
 240    } drawpix;
 241
 242    /** Cache of glDrawPixels images */
 243    struct {
 244       struct drawpix_cache_entry entries[NUM_DRAWPIX_CACHE_ENTRIES];
 245       unsigned age;
 246    } drawpix_cache;
 247
 248    /** for glReadPixels */
 249    struct {
 250       struct pipe_resource *src;
 251       struct pipe_resource *cache;
 252       enum pipe_format dst_format;
 253       unsigned level;
 254       unsigned layer;
 255       unsigned hits;
 256    } readpix_cache;
 257
 258    /** for glClear */
 259    struct {
 260       struct pipe_rasterizer_state raster;
 261       struct pipe_viewport_state viewport;
 262       void *vs;
 263       void *fs;
 264       void *vs_layered;
 265       void *gs_layered;
 266    } clear;
 267
 268    /* For gl(Compressed)Tex(Sub)Image */
 269    struct {
 270       struct pipe_rasterizer_state raster;
 271       struct pipe_blend_state upload_blend;
 272       void *vs;
 273       void *gs;
 274       void *upload_fs[3];
 275       void *download_fs[3][PIPE_MAX_TEXTURE_TYPES];
 276       bool upload_enabled;
 277       bool download_enabled;
 278       bool rgba_only;
 279       bool layers;
 280       bool use_gs;
 281    } pbo;
 282
 283    /** for drawing with st_util_vertex */
 284    struct pipe_vertex_element util_velems[3];
 285
 286    /** passthrough vertex shader matching the util_velem attributes */
 287    void *passthrough_vs;
 288
 289    enum pipe_texture_target internal_target;
 290
 291    struct cso_context *cso_context;
 292
 293    void *winsys_drawable_handle;
 294
 295    /* The number of vertex buffers from the last call of validate_arrays. */
 296    unsigned last_num_vbuffers;
 297
 298    int32_t draw_stamp;
 299    int32_t read_stamp;
 300
 301    struct st_config_options options;
 302
 303    struct st_perf_monitor_group *perfmon;
 304
 305    enum pipe_reset_status reset_status;
 306
 307    /* Array of bound texture/image handles which are resident in the context.
 308     */
 309    struct st_bound_handles bound_texture_handles[PIPE_SHADER_TYPES];
 310    struct st_bound_handles bound_image_handles[PIPE_SHADER_TYPES];
 311
 312    /* Winsys buffers */
 313    struct list_head winsys_buffers;
 314
 315    /* Throttling for texture uploads and similar operations to limit memory
 316     * usage by limiting the number of in-flight operations based on
 317     * the estimated allocated size needed to execute those operations.
 318     */
 319    struct util_throttle throttle;
 320
 321    struct {
 322       struct st_zombie_sampler_view_node list;
 323       mtx_t mutex;
 324    } zombie_sampler_views;
 325 };
 326
 327
 328 /*
 329  * Get the state tracker context for the given Mesa context.
 330  */
 331 static inline struct st_context *
 332 st_context(struct gl_context *ctx)
 333 {
 334    return ctx->st;
 335 }
 336
 337
 338 extern struct st_context *
 339 st_create_context(gl_api api, struct pipe_context *pipe,
 340                   const struct gl_config *visual,
 341                   struct st_context *share,
 342                   const struct st_config_options *options,
 343                   bool no_error);
 344
 345 extern void
 346 st_destroy_context(struct st_context *st);
 347
 348
 349 extern void
 350 st_invalidate_buffers(struct st_context *st);
 351
 352
 353 extern void
 354 st_save_zombie_sampler_view(struct st_context *st,
 355                             struct pipe_sampler_view *view);
 356
 357 void
 358 st_context_free_zombie_objects(struct st_context *st);
 359
 360
 361
 362 /**
 363  * Wrapper for struct gl_framebuffer.
 364  * This is an opaque type to the outside world.
 365  */
 366 struct st_framebuffer
 367 {
 368    struct gl_framebuffer Base;
 369
 370    struct st_framebuffer_iface *iface;
 371    enum st_attachment_type statts[ST_ATTACHMENT_COUNT];
 372    unsigned num_statts;
 373    int32_t stamp;
 374    int32_t iface_stamp;
 375    uint32_t iface_ID;
 376
 377    /* list of framebuffer objects */
 378    struct list_head head;
 379 };
 380
 381
 382 #ifdef __cplusplus
 383 }
 384 #endif
 385
 386 #endif