src/gallium/state_trackers/hgl/hgl.c

   1 /*
   2  * Copyright 2012-2014, Haiku, Inc. All Rights Reserved.
   3  * Distributed under the terms of the MIT License.
   4  *
   5  * Authors:
   6  *      Artur Wyszynski, harakash@gmail.com
   7  *      Alexander von Gluck IV, kallisti5@unixzen.com
   8  */
   9
  10 #include "hgl_context.h"
  11
  12 #include <stdio.h>
  13
  14 #include "pipe/p_format.h"
  15 #include "util/u_atomic.h"
  16 #include "util/u_format.h"
  17 #include "util/u_memory.h"
  18 #include "util/u_inlines.h"
  19 #include "state_tracker/st_gl_api.h" /* for st_gl_api_create */
  20
  21 #include "GLView.h"
  22
  23
  24 #ifdef DEBUG
  25 #   define TRACE(x...) printf("hgl:state_tracker: " x)
  26 #   define CALLED() TRACE("CALLED: %s\n", __PRETTY_FUNCTION__)
  27 #else
  28 #   define TRACE(x...)
  29 #   define CALLED()
  30 #endif
  31 #define ERROR(x...) printf("hgl:state_tracker: " x)
  32
  33
  34 // Perform a safe void to hgl_context cast
  35 static inline struct hgl_context*
  36 hgl_st_context(struct st_context_iface *stctxi)
  37 {
  38         struct hgl_context* context;
  39         assert(stctxi);
  40         context = (struct hgl_context*)stctxi->st_manager_private;
  41         assert(context);
  42         return context;
  43 }
  44
  45
  46 // Perform a safe void to hgl_buffer cast
  47 static inline struct hgl_buffer*
  48 hgl_st_framebuffer(struct st_framebuffer_iface *stfbi)
  49 {
  50         struct hgl_buffer* buffer;
  51         assert(stfbi);
  52         buffer = (struct hgl_buffer*)stfbi->st_manager_private;
  53         assert(buffer);
  54         return buffer;
  55 }
  56
  57
  58 static bool
  59 hgl_st_framebuffer_flush_front(struct st_context_iface *stctxi,
  60         struct st_framebuffer_iface* stfbi, enum st_attachment_type statt)
  61 {
  62         CALLED();
  63
  64         //struct hgl_context* context = hgl_st_context(stctxi);
  65         //struct hgl_buffer* buffer = hgl_st_context(stfbi);
  66
  67         #if 0
  68         struct stw_st_framebuffer *stwfb = stw_st_framebuffer(stfb);
  69         mtx_lock(&stwfb->fb->mutex);
  70
  71         struct pipe_resource* resource = textures[statt];
  72         if (resource)
  73                 stw_framebuffer_present_locked(...);
  74         #endif
  75
  76         return true;
  77 }
  78
  79
  80 static bool
  81 hgl_st_framebuffer_validate_textures(struct st_framebuffer_iface *stfbi,
  82         unsigned width, unsigned height, unsigned mask)
  83 {
  84         struct hgl_buffer* buffer;
  85         enum st_attachment_type i;
  86         struct pipe_resource templat;
  87
  88         CALLED();
  89
  90         buffer = hgl_st_framebuffer(stfbi);
  91
  92         if (buffer->width != width || buffer->height != height) {
  93                 for (i = 0; i < ST_ATTACHMENT_COUNT; i++)
  94                         pipe_resource_reference(&buffer->textures[i], NULL);
  95         }
  96
  97         memset(&templat, 0, sizeof(templat));
  98         templat.target = buffer->target;
  99         templat.width0 = width;
 100         templat.height0 = height;
 101         templat.depth0 = 1;
 102         templat.array_size = 1;
 103         templat.last_level = 0;
 104
 105         for (i = 0; i < ST_ATTACHMENT_COUNT; i++) {
 106                 enum pipe_format format;
 107                 unsigned bind;
 108
 109                 switch (i) {
 110                         case ST_ATTACHMENT_FRONT_LEFT:
 111                         case ST_ATTACHMENT_BACK_LEFT:
 112                         case ST_ATTACHMENT_FRONT_RIGHT:
 113                         case ST_ATTACHMENT_BACK_RIGHT:
 114                                 format = buffer->visual->color_format;
 115                                 bind = PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_RENDER_TARGET;
 116                                 break;
 117                         case ST_ATTACHMENT_DEPTH_STENCIL:
 118                                 format = buffer->visual->depth_stencil_format;
 119                                 bind = PIPE_BIND_DEPTH_STENCIL;
 120                                 break;
 121                         default:
 122                                 format = PIPE_FORMAT_NONE;
 123                                 bind = 0;
 124                                 break;
 125                 }
 126
 127                 if (format != PIPE_FORMAT_NONE) {
 128                         templat.format = format;
 129                         templat.bind = bind;
 130                         buffer->textures[i] = buffer->screen->resource_create(buffer->screen,
 131                                 &templat);
 132                         if (!buffer->textures[i])
 133                                 return FALSE;
 134                 }
 135         }
 136
 137         buffer->width = width;
 138         buffer->height = height;
 139         buffer->mask = mask;
 140
 141         return true;
 142 }
 143
 144
 145 /**
 146  * Called by the st manager to validate the framebuffer (allocate
 147  * its resources).
 148  */
 149 static bool
 150 hgl_st_framebuffer_validate(struct st_context_iface *stctxi,
 151         struct st_framebuffer_iface *stfbi, const enum st_attachment_type *statts,
 152         unsigned count, struct pipe_resource **out)
 153 {
 154         struct hgl_context* context;
 155         struct hgl_buffer* buffer;
 156         unsigned stAttachmentMask, newMask;
 157         unsigned i;
 158         bool resized;
 159
 160         CALLED();
 161
 162         context = hgl_st_context(stctxi);
 163         buffer = hgl_st_framebuffer(stfbi);
 164
 165         //int32 width = 0;
 166         //int32 height = 0;
 167         //get_bitmap_size(context->bitmap, &width, &height);
 168
 169         // Build mask of current attachments
 170         stAttachmentMask = 0;
 171         for (i = 0; i < count; i++)
 172                 stAttachmentMask |= 1 << statts[i];
 173
 174         newMask = stAttachmentMask & ~buffer->mask;
 175
 176         resized = (buffer->width != context->width)
 177                 || (buffer->height != context->height);
 178
 179         if (resized || newMask) {
 180                 boolean ret;
 181                 TRACE("%s: resize event. old:  %d x %d; new: %d x %d\n", __func__,
 182                         buffer->width, buffer->height, context->width, context->height);
 183
 184                 ret = hgl_st_framebuffer_validate_textures(stfbi,
 185                         context->width, context->height, stAttachmentMask);
 186
 187                 if (!ret)
 188                         return ret;
 189
 190                 // TODO: Simply update attachments
 191                 //if (!resized) {
 192
 193                 //}
 194         }
 195
 196         for (i = 0; i < count; i++)
 197                 pipe_resource_reference(&out[i], buffer->textures[statts[i]]);
 198
 199         return true;
 200 }
 201
 202
 203 static int
 204 hgl_st_manager_get_param(struct st_manager *smapi, enum st_manager_param param)
 205 {
 206         CALLED();
 207
 208         switch (param) {
 209                 case ST_MANAGER_BROKEN_INVALIDATE:
 210                         return 1;
 211         }
 212
 213         return 0;
 214 }
 215
 216
 217 /**
 218  * Create new framebuffer
 219  */
 220 struct hgl_buffer *
 221 hgl_create_st_framebuffer(struct hgl_context* context)
 222 {
 223         struct hgl_buffer *buffer;
 224         CALLED();
 225
 226         // Our requires before creating a framebuffer
 227         assert(context);
 228         assert(context->screen);
 229         assert(context->stVisual);
 230
 231         buffer = CALLOC_STRUCT(hgl_buffer);
 232         assert(buffer);
 233
 234         // calloc and configure our st_framebuffer interface
 235         buffer->stfbi = CALLOC_STRUCT(st_framebuffer_iface);
 236         assert(buffer->stfbi);
 237
 238         // Prepare our buffer
 239         buffer->visual = context->stVisual;
 240         buffer->screen = context->screen;
 241
 242         if (context->screen->get_param(buffer->screen, PIPE_CAP_NPOT_TEXTURES))
 243                 buffer->target = PIPE_TEXTURE_2D;
 244         else
 245                 buffer->target = PIPE_TEXTURE_RECT;
 246
 247         // Prepare our state_tracker interface
 248         buffer->stfbi->flush_front = hgl_st_framebuffer_flush_front;
 249         buffer->stfbi->validate = hgl_st_framebuffer_validate;
 250         buffer->stfbi->visual = context->stVisual;
 251
 252         p_atomic_set(&buffer->stfbi->stamp, 1);
 253         buffer->stfbi->st_manager_private = (void*)buffer;
 254
 255         return buffer;
 256 }
 257
 258
 259 struct st_api*
 260 hgl_create_st_api()
 261 {
 262         CALLED();
 263         return st_gl_api_create();
 264 }
 265
 266
 267 struct st_manager *
 268 hgl_create_st_manager(struct hgl_context* context)
 269 {
 270         struct st_manager* manager;
 271
 272         CALLED();
 273
 274         // Required things
 275         assert(context);
 276         assert(context->screen);
 277
 278         manager = CALLOC_STRUCT(st_manager);
 279         assert(manager);
 280
 281         //manager->display = dpy;
 282         manager->screen = context->screen;
 283         manager->get_param = hgl_st_manager_get_param;
 284
 285         return manager;
 286 }
 287
 288
 289 void
 290 hgl_destroy_st_manager(struct st_manager *manager)
 291 {
 292         CALLED();
 293
 294         FREE(manager);
 295 }
 296
 297
 298 struct st_visual*
 299 hgl_create_st_visual(ulong options)
 300 {
 301         struct st_visual* visual;
 302
 303         CALLED();
 304
 305         visual = CALLOC_STRUCT(st_visual);
 306         assert(visual);
 307
 308         // Determine color format
 309         if ((options & BGL_INDEX) != 0) {
 310                 // Index color
 311                 visual->color_format = PIPE_FORMAT_B5G6R5_UNORM;
 312                 // TODO: Indexed color depth buffer?
 313                 visual->depth_stencil_format = PIPE_FORMAT_NONE;
 314         } else {
 315                 // RGB color
 316                 visual->color_format = (options & BGL_ALPHA)
 317                         ? PIPE_FORMAT_BGRA8888_UNORM : PIPE_FORMAT_BGRX8888_UNORM;
 318                 // TODO: Determine additional stencil formats
 319                 visual->depth_stencil_format = (options & BGL_DEPTH)
 320                         ? PIPE_FORMAT_Z24_UNORM_S8_UINT : PIPE_FORMAT_NONE;
 321     }
 322
 323         visual->accum_format = (options & BGL_ACCUM)
 324                 ? PIPE_FORMAT_R16G16B16A16_SNORM : PIPE_FORMAT_NONE;
 325
 326         visual->buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
 327         visual->render_buffer = ST_ATTACHMENT_FRONT_LEFT;
 328
 329         if ((options & BGL_DOUBLE) != 0) {
 330                 visual->buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
 331                 visual->render_buffer = ST_ATTACHMENT_BACK_LEFT;
 332         }
 333
 334         #if 0
 335         if ((options & BGL_STEREO) != 0) {
 336                 visual->buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
 337                 if ((options & BGL_DOUBLE) != 0)
 338                         visual->buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
 339     }
 340         #endif
 341
 342         if ((options & BGL_DEPTH) || (options & BGL_STENCIL))
 343                 visual->buffer_mask |= ST_ATTACHMENT_DEPTH_STENCIL_MASK;
 344
 345         TRACE("%s: Visual color format: %s\n", __func__,
 346                 util_format_name(visual->color_format));
 347
 348         return visual;
 349 }
 350
 351
 352 void
 353 hgl_destroy_st_visual(struct st_visual* visual)
 354 {
 355         CALLED();
 356
 357         FREE(visual);
 358 }