src/mesa/drivers/dri/radeon/radeon_fbo.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 Red Hat 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 TUNGSTEN GRAPHICS 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
  29 #include "main/imports.h"
  30 #include "main/macros.h"
  31 #include "main/mtypes.h"
  32 #include "main/fbobject.h"
  33 #include "main/framebuffer.h"
  34 #include "main/renderbuffer.h"
  35 #include "main/context.h"
  36 #include "main/texrender.h"
  37 #include "drivers/common/meta.h"
  38
  39 #include "radeon_common.h"
  40 #include "radeon_mipmap_tree.h"
  41
  42 #define FILE_DEBUG_FLAG RADEON_TEXTURE
  43 #define DBG(...) do {                                           \
  44         if (RADEON_DEBUG & FILE_DEBUG_FLAG)                      \
  45                 _mesa_printf(__VA_ARGS__);                      \
  46 } while(0)
  47
  48 static struct gl_framebuffer *
  49 radeon_new_framebuffer(GLcontext *ctx, GLuint name)
  50 {
  51   return _mesa_new_framebuffer(ctx, name);
  52 }
  53
  54 static void
  55 radeon_delete_renderbuffer(struct gl_renderbuffer *rb)
  56 {
  57   struct radeon_renderbuffer *rrb = radeon_renderbuffer(rb);
  58
  59   ASSERT(rrb);
  60
  61   if (rrb && rrb->bo) {
  62     radeon_bo_unref(rrb->bo);
  63   }
  64   _mesa_free(rrb);
  65 }
  66
  67 static void *
  68 radeon_get_pointer(GLcontext *ctx, struct gl_renderbuffer *rb,
  69                    GLint x, GLint y)
  70 {
  71   return NULL;
  72 }
  73
  74 /**
  75  * Called via glRenderbufferStorageEXT() to set the format and allocate
  76  * storage for a user-created renderbuffer.
  77  */
  78 static GLboolean
  79 radeon_alloc_renderbuffer_storage(GLcontext * ctx, struct gl_renderbuffer *rb,
  80                                  GLenum internalFormat,
  81                                  GLuint width, GLuint height)
  82 {
  83   struct radeon_context *radeon = RADEON_CONTEXT(ctx);
  84   struct radeon_renderbuffer *rrb = radeon_renderbuffer(rb);
  85   GLboolean software_buffer = GL_FALSE;
  86   int cpp;
  87
  88    ASSERT(rb->Name != 0);
  89   switch (internalFormat) {
  90    case GL_R3_G3_B2:
  91    case GL_RGB4:
  92    case GL_RGB5:
  93       rb->Format = MESA_FORMAT_RGB565;
  94       rb->DataType = GL_UNSIGNED_BYTE;
  95       cpp = 2;
  96       break;
  97    case GL_RGB:
  98    case GL_RGB8:
  99    case GL_RGB10:
 100    case GL_RGB12:
 101    case GL_RGB16:
 102       rb->Format = MESA_FORMAT_ARGB8888;
 103       rb->DataType = GL_UNSIGNED_BYTE;
 104       cpp = 4;
 105       break;
 106    case GL_RGBA:
 107    case GL_RGBA2:
 108    case GL_RGBA4:
 109    case GL_RGB5_A1:
 110    case GL_RGBA8:
 111    case GL_RGB10_A2:
 112    case GL_RGBA12:
 113    case GL_RGBA16:
 114       rb->Format = MESA_FORMAT_ARGB8888;
 115       rb->DataType = GL_UNSIGNED_BYTE;
 116       cpp = 4;
 117       break;
 118    case GL_STENCIL_INDEX:
 119    case GL_STENCIL_INDEX1_EXT:
 120    case GL_STENCIL_INDEX4_EXT:
 121    case GL_STENCIL_INDEX8_EXT:
 122    case GL_STENCIL_INDEX16_EXT:
 123       /* alloc a depth+stencil buffer */
 124       rb->Format = MESA_FORMAT_S8_Z24;
 125       rb->DataType = GL_UNSIGNED_INT_24_8_EXT;
 126       cpp = 4;
 127       break;
 128    case GL_DEPTH_COMPONENT16:
 129       rb->Format = MESA_FORMAT_Z16;
 130       rb->DataType = GL_UNSIGNED_SHORT;
 131       cpp = 2;
 132       break;
 133    case GL_DEPTH_COMPONENT:
 134    case GL_DEPTH_COMPONENT24:
 135    case GL_DEPTH_COMPONENT32:
 136       rb->Format = MESA_FORMAT_Z32;
 137       rb->DataType = GL_UNSIGNED_INT;
 138       cpp = 4;
 139       break;
 140    case GL_DEPTH_STENCIL_EXT:
 141    case GL_DEPTH24_STENCIL8_EXT:
 142       rb->Format = MESA_FORMAT_S8_Z24;
 143       rb->DataType = GL_UNSIGNED_INT_24_8_EXT;
 144       cpp = 4;
 145       break;
 146    default:
 147       _mesa_problem(ctx,
 148                     "Unexpected format in intel_alloc_renderbuffer_storage");
 149       return GL_FALSE;
 150    }
 151
 152   rb->_BaseFormat = _mesa_base_fbo_format(ctx, internalFormat);
 153
 154   if (ctx->Driver.Flush)
 155           ctx->Driver.Flush(ctx); /* +r6/r7 */
 156
 157   if (rrb->bo)
 158     radeon_bo_unref(rrb->bo);
 159
 160
 161    if (software_buffer) {
 162       return _mesa_soft_renderbuffer_storage(ctx, rb, internalFormat,
 163                                              width, height);
 164    }
 165    else {
 166      uint32_t size;
 167      uint32_t pitch = ((cpp * width + 63) & ~63) / cpp;
 168
 169      fprintf(stderr,"Allocating %d x %d radeon RBO (pitch %d)\n", width,
 170           height, pitch);
 171
 172      size = pitch * height * cpp;
 173      rrb->pitch = pitch * cpp;
 174      rrb->cpp = cpp;
 175      rrb->bo = radeon_bo_open(radeon->radeonScreen->bom,
 176                               0,
 177                               size,
 178                               0,
 179                               RADEON_GEM_DOMAIN_VRAM,
 180                               0);
 181      rb->Width = width;
 182      rb->Height = height;
 183        return GL_TRUE;
 184    }
 185
 186 }
 187
 188
 189 /**
 190  * Called for each hardware renderbuffer when a _window_ is resized.
 191  * Just update fields.
 192  * Not used for user-created renderbuffers!
 193  */
 194 static GLboolean
 195 radeon_alloc_window_storage(GLcontext * ctx, struct gl_renderbuffer *rb,
 196                            GLenum internalFormat, GLuint width, GLuint height)
 197 {
 198    ASSERT(rb->Name == 0);
 199    rb->Width = width;
 200    rb->Height = height;
 201    rb->InternalFormat = internalFormat;
 202
 203    return GL_TRUE;
 204 }
 205
 206
 207 static void
 208 radeon_resize_buffers(GLcontext *ctx, struct gl_framebuffer *fb,
 209                      GLuint width, GLuint height)
 210 {
 211      struct radeon_framebuffer *radeon_fb = (struct radeon_framebuffer*)fb;
 212    int i;
 213
 214    _mesa_resize_framebuffer(ctx, fb, width, height);
 215
 216    fb->Initialized = GL_TRUE; /* XXX remove someday */
 217
 218    if (fb->Name != 0) {
 219       return;
 220    }
 221
 222    /* Make sure all window system renderbuffers are up to date */
 223    for (i = 0; i < 2; i++) {
 224       struct gl_renderbuffer *rb = &radeon_fb->color_rb[i]->base;
 225
 226       /* only resize if size is changing */
 227       if (rb && (rb->Width != width || rb->Height != height)) {
 228          rb->AllocStorage(ctx, rb, rb->InternalFormat, width, height);
 229       }
 230    }
 231 }
 232
 233
 234 /** Dummy function for gl_renderbuffer::AllocStorage() */
 235 static GLboolean
 236 radeon_nop_alloc_storage(GLcontext * ctx, struct gl_renderbuffer *rb,
 237                          GLenum internalFormat, GLuint width, GLuint height)
 238 {
 239    _mesa_problem(ctx, "radeon_op_alloc_storage should never be called.");
 240    return GL_FALSE;
 241 }
 242
 243 struct radeon_renderbuffer *
 244 radeon_create_renderbuffer(GLenum format, __DRIdrawablePrivate *driDrawPriv)
 245 {
 246     struct radeon_renderbuffer *rrb;
 247
 248     rrb = CALLOC_STRUCT(radeon_renderbuffer);
 249     if (!rrb)
 250         return NULL;
 251
 252     _mesa_init_renderbuffer(&rrb->base, 0);
 253     rrb->base.ClassID = RADEON_RB_CLASS;
 254
 255     /* XXX format junk */
 256     switch (format) {
 257         case GL_RGB5:
 258             rrb->base.Format = MESA_FORMAT_RGB565;
 259             rrb->base.DataType = GL_UNSIGNED_BYTE;
 260             rrb->base._BaseFormat = GL_RGB;
 261             break;
 262         case GL_RGB8:
 263             rrb->base.Format = MESA_FORMAT_ARGB8888;
 264             rrb->base.DataType = GL_UNSIGNED_BYTE;
 265             rrb->base._BaseFormat = GL_RGB;
 266             break;
 267         case GL_RGBA8:
 268             rrb->base.Format = MESA_FORMAT_ARGB8888;
 269             rrb->base.DataType = GL_UNSIGNED_BYTE;
 270             rrb->base._BaseFormat = GL_RGBA;
 271             break;
 272         case GL_STENCIL_INDEX8_EXT:
 273             rrb->base.Format = MESA_FORMAT_S8;
 274             rrb->base.DataType = GL_UNSIGNED_BYTE;
 275             rrb->base._BaseFormat = GL_STENCIL_INDEX;
 276             break;
 277         case GL_DEPTH_COMPONENT16:
 278             rrb->base.Format = MESA_FORMAT_Z16;
 279             rrb->base.DataType = GL_UNSIGNED_SHORT;
 280             rrb->base._BaseFormat = GL_DEPTH_COMPONENT;
 281             break;
 282         case GL_DEPTH_COMPONENT24:
 283             rrb->base.Format = MESA_FORMAT_Z32;
 284             rrb->base.DataType = GL_UNSIGNED_INT;
 285             rrb->base._BaseFormat = GL_DEPTH_COMPONENT;
 286             break;
 287         case GL_DEPTH24_STENCIL8_EXT:
 288             rrb->base.Format = MESA_FORMAT_S8_Z24;
 289             rrb->base.DataType = GL_UNSIGNED_INT_24_8_EXT;
 290             rrb->base._BaseFormat = GL_STENCIL_INDEX;
 291             break;
 292         default:
 293             fprintf(stderr, "%s: Unknown format 0x%04x\n", __FUNCTION__, format);
 294             _mesa_delete_renderbuffer(&rrb->base);
 295             return NULL;
 296     }
 297
 298     rrb->dPriv = driDrawPriv;
 299     rrb->base.InternalFormat = format;
 300
 301     rrb->base.Delete = radeon_delete_renderbuffer;
 302     rrb->base.AllocStorage = radeon_alloc_window_storage;
 303     rrb->base.GetPointer = radeon_get_pointer;
 304
 305     rrb->bo = NULL;
 306     return rrb;
 307 }
 308
 309 static struct gl_renderbuffer *
 310 radeon_new_renderbuffer(GLcontext * ctx, GLuint name)
 311 {
 312   struct radeon_renderbuffer *rrb;
 313
 314   rrb = CALLOC_STRUCT(radeon_renderbuffer);
 315   if (!rrb)
 316     return NULL;
 317
 318   _mesa_init_renderbuffer(&rrb->base, name);
 319   rrb->base.ClassID = RADEON_RB_CLASS;
 320
 321   rrb->base.Delete = radeon_delete_renderbuffer;
 322   rrb->base.AllocStorage = radeon_alloc_renderbuffer_storage;
 323   rrb->base.GetPointer = radeon_get_pointer;
 324
 325   return &rrb->base;
 326 }
 327
 328 static void
 329 radeon_bind_framebuffer(GLcontext * ctx, GLenum target,
 330                        struct gl_framebuffer *fb, struct gl_framebuffer *fbread)
 331 {
 332    if (target == GL_FRAMEBUFFER_EXT || target == GL_DRAW_FRAMEBUFFER_EXT) {
 333       radeon_draw_buffer(ctx, fb);
 334    }
 335    else {
 336       /* don't need to do anything if target == GL_READ_FRAMEBUFFER_EXT */
 337    }
 338 }
 339
 340 static void
 341 radeon_framebuffer_renderbuffer(GLcontext * ctx,
 342                                struct gl_framebuffer *fb,
 343                                GLenum attachment, struct gl_renderbuffer *rb)
 344 {
 345
 346         if (ctx->Driver.Flush)
 347                 ctx->Driver.Flush(ctx); /* +r6/r7 */
 348
 349    _mesa_framebuffer_renderbuffer(ctx, fb, attachment, rb);
 350    radeon_draw_buffer(ctx, fb);
 351 }
 352
 353
 354 static GLboolean
 355 radeon_update_wrapper(GLcontext *ctx, struct radeon_renderbuffer *rrb,
 356                      struct gl_texture_image *texImage)
 357 {
 358         int retry = 0;
 359         gl_format texFormat;
 360
 361 restart:
 362         if (texImage->TexFormat == MESA_FORMAT_ARGB8888) {
 363                 rrb->base.DataType = GL_UNSIGNED_BYTE;
 364                 DBG("Render to RGBA8 texture OK\n");
 365         }
 366         else if (texImage->TexFormat == MESA_FORMAT_RGB565) {
 367                 rrb->base.DataType = GL_UNSIGNED_BYTE;
 368                 DBG("Render to RGB5 texture OK\n");
 369         }
 370         else if (texImage->TexFormat == MESA_FORMAT_ARGB1555) {
 371                 rrb->base.DataType = GL_UNSIGNED_BYTE;
 372                 DBG("Render to ARGB1555 texture OK\n");
 373         }
 374         else if (texImage->TexFormat == MESA_FORMAT_ARGB4444) {
 375                 rrb->base.DataType = GL_UNSIGNED_BYTE;
 376                 DBG("Render to ARGB1555 texture OK\n");
 377         }
 378         else if (texImage->TexFormat == MESA_FORMAT_Z16) {
 379                 rrb->base.DataType = GL_UNSIGNED_SHORT;
 380                 DBG("Render to DEPTH16 texture OK\n");
 381         }
 382         else if (texImage->TexFormat == MESA_FORMAT_S8_Z24) {
 383                 rrb->base.DataType = GL_UNSIGNED_INT_24_8_EXT;
 384                 DBG("Render to DEPTH_STENCIL texture OK\n");
 385         }
 386         else {
 387                 /* try redoing the FBO */
 388                 if (retry == 1) {
 389                         DBG("Render to texture BAD FORMAT %d\n",
 390                             texImage->TexFormat);
 391                         return GL_FALSE;
 392                 }
 393                 texImage->TexFormat = radeonChooseTextureFormat(ctx, texImage->InternalFormat, 0,
 394                                                                 _mesa_get_format_datatype(texImage->TexFormat),
 395                                                                 1);
 396
 397                 retry++;
 398                 goto restart;
 399         }
 400
 401         texFormat = texImage->TexFormat;
 402
 403         rrb->base.Format = texFormat;
 404
 405         rrb->cpp = _mesa_get_format_bytes(texFormat);
 406         rrb->pitch = texImage->Width * rrb->cpp;
 407         rrb->base.InternalFormat = texImage->InternalFormat;
 408         rrb->base._BaseFormat = _mesa_base_fbo_format(ctx, rrb->base.InternalFormat);
 409
 410         rrb->base.Width = texImage->Width;
 411         rrb->base.Height = texImage->Height;
 412
 413         rrb->base.Delete = radeon_delete_renderbuffer;
 414         rrb->base.AllocStorage = radeon_nop_alloc_storage;
 415
 416         return GL_TRUE;
 417 }
 418
 419
 420 static struct radeon_renderbuffer *
 421 radeon_wrap_texture(GLcontext * ctx, struct gl_texture_image *texImage)
 422 {
 423   const GLuint name = ~0;   /* not significant, but distinct for debugging */
 424   struct radeon_renderbuffer *rrb;
 425
 426    /* make an radeon_renderbuffer to wrap the texture image */
 427    rrb = CALLOC_STRUCT(radeon_renderbuffer);
 428    if (!rrb) {
 429       _mesa_error(ctx, GL_OUT_OF_MEMORY, "glFramebufferTexture");
 430       return NULL;
 431    }
 432
 433    _mesa_init_renderbuffer(&rrb->base, name);
 434    rrb->base.ClassID = RADEON_RB_CLASS;
 435
 436    if (!radeon_update_wrapper(ctx, rrb, texImage)) {
 437       _mesa_free(rrb);
 438       return NULL;
 439    }
 440
 441    return rrb;
 442
 443 }
 444 static void
 445 radeon_render_texture(GLcontext * ctx,
 446                      struct gl_framebuffer *fb,
 447                      struct gl_renderbuffer_attachment *att)
 448 {
 449    struct gl_texture_image *newImage
 450       = att->Texture->Image[att->CubeMapFace][att->TextureLevel];
 451    struct radeon_renderbuffer *rrb = radeon_renderbuffer(att->Renderbuffer);
 452    radeon_texture_image *radeon_image;
 453    GLuint imageOffset;
 454
 455    (void) fb;
 456
 457    ASSERT(newImage);
 458
 459    if (newImage->Border != 0) {
 460       /* Fallback on drawing to a texture with a border, which won't have a
 461        * miptree.
 462        */
 463       _mesa_reference_renderbuffer(&att->Renderbuffer, NULL);
 464       _mesa_render_texture(ctx, fb, att);
 465       return;
 466    }
 467    else if (!rrb) {
 468       rrb = radeon_wrap_texture(ctx, newImage);
 469       if (rrb) {
 470          /* bind the wrapper to the attachment point */
 471          _mesa_reference_renderbuffer(&att->Renderbuffer, &rrb->base);
 472       }
 473       else {
 474          /* fallback to software rendering */
 475          _mesa_render_texture(ctx, fb, att);
 476          return;
 477       }
 478    }
 479
 480    if (!radeon_update_wrapper(ctx, rrb, newImage)) {
 481        _mesa_reference_renderbuffer(&att->Renderbuffer, NULL);
 482        _mesa_render_texture(ctx, fb, att);
 483        return;
 484    }
 485
 486    DBG("Begin render texture tid %x tex=%u w=%d h=%d refcount=%d\n",
 487        _glthread_GetID(),
 488        att->Texture->Name, newImage->Width, newImage->Height,
 489        rrb->base.RefCount);
 490
 491    /* point the renderbufer's region to the texture image region */
 492    radeon_image = (radeon_texture_image *)newImage;
 493    if (rrb->bo != radeon_image->mt->bo) {
 494       if (rrb->bo)
 495         radeon_bo_unref(rrb->bo);
 496       rrb->bo = radeon_image->mt->bo;
 497       radeon_bo_ref(rrb->bo);
 498    }
 499
 500    /* compute offset of the particular 2D image within the texture region */
 501    imageOffset = radeon_miptree_image_offset(radeon_image->mt,
 502                                             att->CubeMapFace,
 503                                             att->TextureLevel);
 504
 505    if (att->Texture->Target == GL_TEXTURE_3D) {
 506       GLuint offsets[6];
 507       radeon_miptree_depth_offsets(radeon_image->mt, att->TextureLevel,
 508                                    offsets);
 509       imageOffset += offsets[att->Zoffset];
 510    }
 511
 512    /* store that offset in the region */
 513    rrb->draw_offset = imageOffset;
 514
 515    /* update drawing region, etc */
 516    radeon_draw_buffer(ctx, fb);
 517 }
 518
 519 static void
 520 radeon_finish_render_texture(GLcontext * ctx,
 521                             struct gl_renderbuffer_attachment *att)
 522 {
 523
 524 }
 525 static void
 526 radeon_validate_framebuffer(GLcontext *ctx, struct gl_framebuffer *fb)
 527 {
 528 }
 529
 530 void radeon_fbo_init(struct radeon_context *radeon)
 531 {
 532   radeon->glCtx->Driver.NewFramebuffer = radeon_new_framebuffer;
 533   radeon->glCtx->Driver.NewRenderbuffer = radeon_new_renderbuffer;
 534   radeon->glCtx->Driver.BindFramebuffer = radeon_bind_framebuffer;
 535   radeon->glCtx->Driver.FramebufferRenderbuffer = radeon_framebuffer_renderbuffer;
 536   radeon->glCtx->Driver.RenderTexture = radeon_render_texture;
 537   radeon->glCtx->Driver.FinishRenderTexture = radeon_finish_render_texture;
 538   radeon->glCtx->Driver.ResizeBuffers = radeon_resize_buffers;
 539   radeon->glCtx->Driver.ValidateFramebuffer = radeon_validate_framebuffer;
 540   radeon->glCtx->Driver.BlitFramebuffer = _mesa_meta_BlitFramebuffer;
 541 }
 542
 543
 544 void radeon_renderbuffer_set_bo(struct radeon_renderbuffer *rb,
 545                                 struct radeon_bo *bo)
 546 {
 547   struct radeon_bo *old;
 548   old = rb->bo;
 549   rb->bo = bo;
 550   radeon_bo_ref(bo);
 551   if (old)
 552     radeon_bo_unref(old);
 553 }