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
  41
  42 #ifdef __cplusplus
  43 extern "C" {
  44 #endif
  45
  46
  47 struct dd_function_table;
  48 struct draw_context;
  49 struct draw_stage;
  50 struct gen_mipmap_state;
  51 struct st_context;
  52 struct st_fragment_program;
  53 struct st_perf_monitor_group;
  54 struct u_upload_mgr;
  55
  56
  57 struct st_bitmap_cache
  58 {
  59    /** Window pos to render the cached image */
  60    GLint xpos, ypos;
  61    /** Bounds of region used in window coords */
  62    GLint xmin, ymin, xmax, ymax;
  63
  64    GLfloat color[4];
  65
  66    /** Bitmap's Z position */
  67    GLfloat zpos;
  68
  69    struct pipe_resource *texture;
  70    struct pipe_transfer *trans;
  71
  72    GLboolean empty;
  73
  74    /** An I8 texture image: */
  75    ubyte *buffer;
  76 };
  77
  78 struct st_bound_handles
  79 {
  80    unsigned num_handles;
  81    uint64_t *handles;
  82 };
  83
  84
  85 #define NUM_DRAWPIX_CACHE_ENTRIES 4
  86
  87 struct drawpix_cache_entry
  88 {
  89    GLsizei width, height;
  90    GLenum format, type;
  91    const void *user_pointer;  /**< Last user 'pixels' pointer */
  92    void *image;               /**< Copy of the glDrawPixels image data */
  93    struct pipe_resource *texture;
  94    unsigned age;
  95 };
  96
  97
  98 struct st_context
  99 {
 100    struct st_context_iface iface;
 101
 102    struct gl_context *ctx;
 103
 104    struct pipe_context *pipe;
 105
 106    struct draw_context *draw;  /**< For selection/feedback/rastpos only */
 107    struct draw_stage *feedback_stage;  /**< For GL_FEEDBACK rendermode */
 108    struct draw_stage *selection_stage;  /**< For GL_SELECT rendermode */
 109    struct draw_stage *rastpos_stage;  /**< For glRasterPos */
 110    GLboolean clamp_frag_color_in_shader;
 111    GLboolean clamp_vert_color_in_shader;
 112    boolean has_stencil_export; /**< can do shader stencil export? */
 113    boolean has_time_elapsed;
 114    boolean has_shader_model3;
 115    boolean has_etc1;
 116    boolean has_etc2;
 117    boolean has_astc_2d_ldr;
 118    boolean prefer_blit_based_texture_transfer;
 119    boolean force_persample_in_shader;
 120    boolean has_shareable_shaders;
 121    boolean has_half_float_packing;
 122    boolean has_multi_draw_indirect;
 123    boolean has_single_pipe_stat;
 124    boolean has_indep_blend_func;
 125    boolean needs_rgb_dst_alpha_override;
 126    boolean can_bind_const_buffer_as_vertex;
 127
 128    /**
 129     * If a shader can be created when we get its source.
 130     * This means it has only 1 variant, not counting glBitmap and
 131     * glDrawPixels.
 132     */
 133    boolean shader_has_one_variant[MESA_SHADER_STAGES];
 134
 135    boolean needs_texcoord_semantic;
 136    boolean apply_texture_swizzle_to_border_color;
 137
 138    /* On old libGL's for linux we need to invalidate the drawables
 139     * on glViewpport calls, this is set via a option.
 140     */
 141    boolean invalidate_on_gl_viewport;
 142    boolean draw_needs_minmax_index;
 143    boolean vertex_array_out_of_memory;
 144    boolean has_hw_atomics;
 145
 146    /* Some state is contained in constant objects.
 147     * Other state is just parameter values.
 148     */
 149    struct {
 150       struct pipe_blend_state               blend;
 151       struct pipe_depth_stencil_alpha_state depth_stencil;
 152       struct pipe_rasterizer_state          rasterizer;
 153       struct pipe_sampler_state frag_samplers[PIPE_MAX_SAMPLERS];
 154       GLuint num_frag_samplers;
 155       struct pipe_sampler_view *frag_sampler_views[PIPE_MAX_SAMPLERS];
 156       GLuint num_sampler_views[PIPE_SHADER_TYPES];
 157       struct pipe_clip_state clip;
 158       struct {
 159          void *ptr;
 160          unsigned size;
 161       } constants[PIPE_SHADER_TYPES];
 162       unsigned fb_width;
 163       unsigned fb_height;
 164       unsigned fb_num_samples;
 165       unsigned fb_num_layers;
 166       unsigned fb_num_cb;
 167       unsigned num_viewports;
 168       struct pipe_scissor_state scissor[PIPE_MAX_VIEWPORTS];
 169       struct pipe_viewport_state viewport[PIPE_MAX_VIEWPORTS];
 170       struct {
 171          unsigned num;
 172          boolean include;
 173          struct pipe_scissor_state rects[PIPE_MAX_WINDOW_RECTANGLES];
 174       } window_rects;
 175
 176       GLuint poly_stipple[32];  /**< In OpenGL's bottom-to-top order */
 177
 178       GLuint fb_orientation;
 179
 180       bool enable_sample_locations;
 181       unsigned sample_locations_samples;
 182       uint8_t sample_locations[
 183          PIPE_MAX_SAMPLE_LOCATION_GRID_SIZE *
 184          PIPE_MAX_SAMPLE_LOCATION_GRID_SIZE * 32];
 185    } state;
 186
 187    uint64_t dirty; /**< dirty states */
 188
 189    /** This masks out unused shader resources. Only valid in draw calls. */
 190    uint64_t active_states;
 191
 192    unsigned pin_thread_counter; /* for L3 thread pinning on AMD Zen */
 193
 194    /* If true, further analysis of states is required to know if something
 195     * has changed. Used mainly for shaders.
 196     */
 197    bool gfx_shaders_may_be_dirty;
 198    bool compute_shader_may_be_dirty;
 199
 200    GLboolean vertdata_edgeflags;
 201    GLboolean edgeflag_culls_prims;
 202
 203    struct st_vertex_program *vp;    /**< Currently bound vertex program */
 204    struct st_fragment_program *fp;  /**< Currently bound fragment program */
 205    struct st_common_program *gp;  /**< Currently bound geometry program */
 206    struct st_common_program *tcp; /**< Currently bound tess control program */
 207    struct st_common_program *tep; /**< Currently bound tess eval program */
 208    struct st_compute_program *cp;   /**< Currently bound compute program */
 209
 210    struct st_vp_variant *vp_variant;
 211
 212    struct {
 213       struct pipe_resource *pixelmap_texture;
 214       struct pipe_sampler_view *pixelmap_sampler_view;
 215    } pixel_xfer;
 216
 217    /** for glBitmap */
 218    struct {
 219       struct pipe_rasterizer_state rasterizer;
 220       struct pipe_sampler_state sampler;
 221       struct pipe_sampler_state atlas_sampler;
 222       enum pipe_format tex_format;
 223       struct st_bitmap_cache cache;
 224    } bitmap;
 225
 226    /** for glDraw/CopyPixels */
 227    struct {
 228       void *zs_shaders[4];
 229    } drawpix;
 230
 231    /** Cache of glDrawPixels images */
 232    struct {
 233       struct drawpix_cache_entry entries[NUM_DRAWPIX_CACHE_ENTRIES];
 234       unsigned age;
 235    } drawpix_cache;
 236
 237    /** for glReadPixels */
 238    struct {
 239       struct pipe_resource *src;
 240       struct pipe_resource *cache;
 241       enum pipe_format dst_format;
 242       unsigned level;
 243       unsigned layer;
 244       unsigned hits;
 245    } readpix_cache;
 246
 247    /** for glClear */
 248    struct {
 249       struct pipe_rasterizer_state raster;
 250       struct pipe_viewport_state viewport;
 251       void *vs;
 252       void *fs;
 253       void *vs_layered;
 254       void *gs_layered;
 255    } clear;
 256
 257    /* For gl(Compressed)Tex(Sub)Image */
 258    struct {
 259       struct pipe_rasterizer_state raster;
 260       struct pipe_blend_state upload_blend;
 261       void *vs;
 262       void *gs;
 263       void *upload_fs[3];
 264       void *download_fs[3][PIPE_MAX_TEXTURE_TYPES];
 265       bool upload_enabled;
 266       bool download_enabled;
 267       bool rgba_only;
 268       bool layers;
 269       bool use_gs;
 270    } pbo;
 271
 272    /** for drawing with st_util_vertex */
 273    struct pipe_vertex_element util_velems[3];
 274
 275    /** passthrough vertex shader matching the util_velem attributes */
 276    void *passthrough_vs;
 277
 278    enum pipe_texture_target internal_target;
 279
 280    struct cso_context *cso_context;
 281
 282    void *winsys_drawable_handle;
 283
 284    /* The number of vertex buffers from the last call of validate_arrays. */
 285    unsigned last_num_vbuffers;
 286
 287    int32_t draw_stamp;
 288    int32_t read_stamp;
 289
 290    struct st_config_options options;
 291
 292    struct st_perf_monitor_group *perfmon;
 293
 294    enum pipe_reset_status reset_status;
 295
 296    /* Array of bound texture/image handles which are resident in the context.
 297     */
 298    struct st_bound_handles bound_texture_handles[PIPE_SHADER_TYPES];
 299    struct st_bound_handles bound_image_handles[PIPE_SHADER_TYPES];
 300
 301    /* Winsys buffers */
 302    struct list_head winsys_buffers;
 303
 304    /* Throttling for texture uploads and similar operations to limit memory
 305     * usage by limiting the number of in-flight operations based on
 306     * the estimated allocated size needed to execute those operations.
 307     */
 308    struct util_throttle throttle;
 309 };
 310
 311
 312 /*
 313  * Get the state tracker context for the given Mesa context.
 314  */
 315 static inline struct st_context *
 316 st_context(struct gl_context *ctx)
 317 {
 318    return ctx->st;
 319 }
 320
 321
 322 extern struct st_context *
 323 st_create_context(gl_api api, struct pipe_context *pipe,
 324                   const struct gl_config *visual,
 325                   struct st_context *share,
 326                   const struct st_config_options *options,
 327                   bool no_error);
 328
 329 extern void
 330 st_destroy_context(struct st_context *st);
 331
 332
 333 extern void
 334 st_init_driver_functions(struct pipe_screen *screen,
 335                          struct dd_function_table *functions);
 336
 337
 338 extern void
 339 st_invalidate_buffers(struct st_context *st);
 340
 341
 342 extern uint64_t
 343 st_get_active_states(struct gl_context *ctx);
 344
 345
 346 /**
 347  * Wrapper for struct gl_framebuffer.
 348  * This is an opaque type to the outside world.
 349  */
 350 struct st_framebuffer
 351 {
 352    struct gl_framebuffer Base;
 353
 354    struct st_framebuffer_iface *iface;
 355    enum st_attachment_type statts[ST_ATTACHMENT_COUNT];
 356    unsigned num_statts;
 357    int32_t stamp;
 358    int32_t iface_stamp;
 359    uint32_t iface_ID;
 360
 361    /* list of framebuffer objects */
 362    struct list_head head;
 363 };
 364
 365
 366 #ifdef __cplusplus
 367 }
 368 #endif
 369
 370 #endif