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_Z24_S8;
 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_Z24_S8;
 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.DataType = GL_UNSIGNED_BYTE;
 259             rrb->base._BaseFormat = GL_RGB;
 260             break;
 261         case GL_RGB8:
 262             rrb->base.DataType = GL_UNSIGNED_BYTE;
 263             rrb->base._BaseFormat = GL_RGB;
 264             break;
 265         case GL_RGBA8:
 266             rrb->base.DataType = GL_UNSIGNED_BYTE;
 267             rrb->base._BaseFormat = GL_RGBA;
 268             break;
 269         case GL_STENCIL_INDEX8_EXT:
 270             rrb->base.DataType = GL_UNSIGNED_BYTE;
 271             rrb->base._BaseFormat = GL_STENCIL_INDEX;
 272             break;
 273         case GL_DEPTH_COMPONENT16:
 274             rrb->base.DataType = GL_UNSIGNED_SHORT;
 275             rrb->base._BaseFormat = GL_DEPTH_COMPONENT;
 276             break;
 277         case GL_DEPTH_COMPONENT24:
 278             rrb->base.DataType = GL_UNSIGNED_INT;
 279             rrb->base._BaseFormat = GL_DEPTH_COMPONENT;
 280             break;
 281         case GL_DEPTH24_STENCIL8_EXT:
 282             rrb->base.DataType = GL_UNSIGNED_INT_24_8_EXT;
 283             rrb->base._BaseFormat = GL_STENCIL_INDEX;
 284             break;
 285         default:
 286             fprintf(stderr, "%s: Unknown format 0x%04x\n", __FUNCTION__, format);
 287             _mesa_delete_renderbuffer(&rrb->base);
 288             return NULL;
 289     }
 290
 291     rrb->dPriv = driDrawPriv;
 292     rrb->base.InternalFormat = format;
 293
 294     rrb->base.Delete = radeon_delete_renderbuffer;
 295     rrb->base.AllocStorage = radeon_alloc_window_storage;
 296     rrb->base.GetPointer = radeon_get_pointer;
 297
 298     rrb->bo = NULL;
 299     return rrb;
 300 }
 301
 302 static struct gl_renderbuffer *
 303 radeon_new_renderbuffer(GLcontext * ctx, GLuint name)
 304 {
 305   struct radeon_renderbuffer *rrb;
 306
 307   rrb = CALLOC_STRUCT(radeon_renderbuffer);
 308   if (!rrb)
 309     return NULL;
 310
 311   _mesa_init_renderbuffer(&rrb->base, name);
 312   rrb->base.ClassID = RADEON_RB_CLASS;
 313
 314   rrb->base.Delete = radeon_delete_renderbuffer;
 315   rrb->base.AllocStorage = radeon_alloc_renderbuffer_storage;
 316   rrb->base.GetPointer = radeon_get_pointer;
 317
 318   return &rrb->base;
 319 }
 320
 321 static void
 322 radeon_bind_framebuffer(GLcontext * ctx, GLenum target,
 323                        struct gl_framebuffer *fb, struct gl_framebuffer *fbread)
 324 {
 325    if (target == GL_FRAMEBUFFER_EXT || target == GL_DRAW_FRAMEBUFFER_EXT) {
 326       radeon_draw_buffer(ctx, fb);
 327    }
 328    else {
 329       /* don't need to do anything if target == GL_READ_FRAMEBUFFER_EXT */
 330    }
 331 }
 332
 333 static void
 334 radeon_framebuffer_renderbuffer(GLcontext * ctx,
 335                                struct gl_framebuffer *fb,
 336                                GLenum attachment, struct gl_renderbuffer *rb)
 337 {
 338
 339         if (ctx->Driver.Flush)
 340                 ctx->Driver.Flush(ctx); /* +r6/r7 */
 341
 342    _mesa_framebuffer_renderbuffer(ctx, fb, attachment, rb);
 343    radeon_draw_buffer(ctx, fb);
 344 }
 345
 346
 347 static GLboolean
 348 radeon_update_wrapper(GLcontext *ctx, struct radeon_renderbuffer *rrb,
 349                      struct gl_texture_image *texImage)
 350 {
 351         int retry = 0;
 352         gl_format texFormat;
 353
 354 restart:
 355         if (texImage->TexFormat == MESA_FORMAT_ARGB8888) {
 356                 rrb->base.DataType = GL_UNSIGNED_BYTE;
 357                 DBG("Render to RGBA8 texture OK\n");
 358         }
 359         else if (texImage->TexFormat == MESA_FORMAT_RGB565) {
 360                 rrb->base.DataType = GL_UNSIGNED_BYTE;
 361                 DBG("Render to RGB5 texture OK\n");
 362         }
 363         else if (texImage->TexFormat == MESA_FORMAT_ARGB1555) {
 364                 rrb->base.DataType = GL_UNSIGNED_BYTE;
 365                 DBG("Render to ARGB1555 texture OK\n");
 366         }
 367         else if (texImage->TexFormat == MESA_FORMAT_ARGB4444) {
 368                 rrb->base.DataType = GL_UNSIGNED_BYTE;
 369                 DBG("Render to ARGB1555 texture OK\n");
 370         }
 371         else if (texImage->TexFormat == MESA_FORMAT_Z16) {
 372                 rrb->base.DataType = GL_UNSIGNED_SHORT;
 373                 DBG("Render to DEPTH16 texture OK\n");
 374         }
 375         else if (texImage->TexFormat == MESA_FORMAT_S8_Z24) {
 376                 rrb->base.DataType = GL_UNSIGNED_INT_24_8_EXT;
 377                 DBG("Render to DEPTH_STENCIL texture OK\n");
 378         }
 379         else {
 380                 /* try redoing the FBO */
 381                 if (retry == 1) {
 382                         DBG("Render to texture BAD FORMAT %d\n",
 383                             texImage->TexFormat);
 384                         return GL_FALSE;
 385                 }
 386                 texImage->TexFormat = radeonChooseTextureFormat(ctx, texImage->InternalFormat, 0,
 387                                                                 _mesa_get_format_datatype(texImage->TexFormat),
 388                                                                 1);
 389
 390                 retry++;
 391                 goto restart;
 392         }
 393
 394         texFormat = texImage->TexFormat;
 395
 396         rrb->base.Format = texFormat;
 397
 398         rrb->cpp = _mesa_get_format_bytes(texFormat);
 399         rrb->pitch = texImage->Width * rrb->cpp;
 400         rrb->base.InternalFormat = texImage->InternalFormat;
 401         rrb->base._BaseFormat = _mesa_base_fbo_format(ctx, rrb->base.InternalFormat);
 402
 403         rrb->base.Width = texImage->Width;
 404         rrb->base.Height = texImage->Height;
 405
 406         rrb->base.Delete = radeon_delete_renderbuffer;
 407         rrb->base.AllocStorage = radeon_nop_alloc_storage;
 408
 409         return GL_TRUE;
 410 }
 411
 412
 413 static struct radeon_renderbuffer *
 414 radeon_wrap_texture(GLcontext * ctx, struct gl_texture_image *texImage)
 415 {
 416   const GLuint name = ~0;   /* not significant, but distinct for debugging */
 417   struct radeon_renderbuffer *rrb;
 418
 419    /* make an radeon_renderbuffer to wrap the texture image */
 420    rrb = CALLOC_STRUCT(radeon_renderbuffer);
 421    if (!rrb) {
 422       _mesa_error(ctx, GL_OUT_OF_MEMORY, "glFramebufferTexture");
 423       return NULL;
 424    }
 425
 426    _mesa_init_renderbuffer(&rrb->base, name);
 427    rrb->base.ClassID = RADEON_RB_CLASS;
 428
 429    if (!radeon_update_wrapper(ctx, rrb, texImage)) {
 430       _mesa_free(rrb);
 431       return NULL;
 432    }
 433
 434    return rrb;
 435
 436 }
 437 static void
 438 radeon_render_texture(GLcontext * ctx,
 439                      struct gl_framebuffer *fb,
 440                      struct gl_renderbuffer_attachment *att)
 441 {
 442    struct gl_texture_image *newImage
 443       = att->Texture->Image[att->CubeMapFace][att->TextureLevel];
 444    struct radeon_renderbuffer *rrb = radeon_renderbuffer(att->Renderbuffer);
 445    radeon_texture_image *radeon_image;
 446    GLuint imageOffset;
 447
 448    (void) fb;
 449
 450    ASSERT(newImage);
 451
 452    if (newImage->Border != 0) {
 453       /* Fallback on drawing to a texture with a border, which won't have a
 454        * miptree.
 455        */
 456       _mesa_reference_renderbuffer(&att->Renderbuffer, NULL);
 457       _mesa_render_texture(ctx, fb, att);
 458       return;
 459    }
 460    else if (!rrb) {
 461       rrb = radeon_wrap_texture(ctx, newImage);
 462       if (rrb) {
 463          /* bind the wrapper to the attachment point */
 464          _mesa_reference_renderbuffer(&att->Renderbuffer, &rrb->base);
 465       }
 466       else {
 467          /* fallback to software rendering */
 468          _mesa_render_texture(ctx, fb, att);
 469          return;
 470       }
 471    }
 472
 473    if (!radeon_update_wrapper(ctx, rrb, newImage)) {
 474        _mesa_reference_renderbuffer(&att->Renderbuffer, NULL);
 475        _mesa_render_texture(ctx, fb, att);
 476        return;
 477    }
 478
 479    DBG("Begin render texture tid %x tex=%u w=%d h=%d refcount=%d\n",
 480        _glthread_GetID(),
 481        att->Texture->Name, newImage->Width, newImage->Height,
 482        rrb->base.RefCount);
 483
 484    /* point the renderbufer's region to the texture image region */
 485    radeon_image = (radeon_texture_image *)newImage;
 486    if (rrb->bo != radeon_image->mt->bo) {
 487       if (rrb->bo)
 488         radeon_bo_unref(rrb->bo);
 489       rrb->bo = radeon_image->mt->bo;
 490       radeon_bo_ref(rrb->bo);
 491    }
 492
 493    /* compute offset of the particular 2D image within the texture region */
 494    imageOffset = radeon_miptree_image_offset(radeon_image->mt,
 495                                             att->CubeMapFace,
 496                                             att->TextureLevel);
 497
 498    if (att->Texture->Target == GL_TEXTURE_3D) {
 499       GLuint offsets[6];
 500       radeon_miptree_depth_offsets(radeon_image->mt, att->TextureLevel,
 501                                    offsets);
 502       imageOffset += offsets[att->Zoffset];
 503    }
 504
 505    /* store that offset in the region */
 506    rrb->draw_offset = imageOffset;
 507
 508    /* update drawing region, etc */
 509    radeon_draw_buffer(ctx, fb);
 510 }
 511
 512 static void
 513 radeon_finish_render_texture(GLcontext * ctx,
 514                             struct gl_renderbuffer_attachment *att)
 515 {
 516
 517 }
 518 static void
 519 radeon_validate_framebuffer(GLcontext *ctx, struct gl_framebuffer *fb)
 520 {
 521 }
 522
 523 void radeon_fbo_init(struct radeon_context *radeon)
 524 {
 525   radeon->glCtx->Driver.NewFramebuffer = radeon_new_framebuffer;
 526   radeon->glCtx->Driver.NewRenderbuffer = radeon_new_renderbuffer;
 527   radeon->glCtx->Driver.BindFramebuffer = radeon_bind_framebuffer;
 528   radeon->glCtx->Driver.FramebufferRenderbuffer = radeon_framebuffer_renderbuffer;
 529   radeon->glCtx->Driver.RenderTexture = radeon_render_texture;
 530   radeon->glCtx->Driver.FinishRenderTexture = radeon_finish_render_texture;
 531   radeon->glCtx->Driver.ResizeBuffers = radeon_resize_buffers;
 532   radeon->glCtx->Driver.ValidateFramebuffer = radeon_validate_framebuffer;
 533   radeon->glCtx->Driver.BlitFramebuffer = _mesa_meta_BlitFramebuffer;
 534 }
 535
 536
 537 void radeon_renderbuffer_set_bo(struct radeon_renderbuffer *rb,
 538                                 struct radeon_bo *bo)
 539 {
 540   struct radeon_bo *old;
 541   old = rb->bo;
 542   rb->bo = bo;
 543   radeon_bo_ref(bo);
 544   if (old)
 545     radeon_bo_unref(old);
 546 }