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/texformat.h"
  37 #include "main/texrender.h"
  38
  39 #include "radeon_common.h"
  40 #include "radeon_mipmap_tree.h"
  41
  42 #define FILE_DEBUG_FLAG DEBUG_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->_ActualFormat = GL_RGB5;
  94       rb->DataType = GL_UNSIGNED_BYTE;
  95       rb->RedBits = 5;
  96       rb->GreenBits = 6;
  97       rb->BlueBits = 5;
  98       cpp = 2;
  99       break;
 100    case GL_RGB:
 101    case GL_RGB8:
 102    case GL_RGB10:
 103    case GL_RGB12:
 104    case GL_RGB16:
 105       rb->_ActualFormat = GL_RGB8;
 106       rb->DataType = GL_UNSIGNED_BYTE;
 107       rb->RedBits = 8;
 108       rb->GreenBits = 8;
 109       rb->BlueBits = 8;
 110       rb->AlphaBits = 0;
 111       cpp = 4;
 112       break;
 113    case GL_RGBA:
 114    case GL_RGBA2:
 115    case GL_RGBA4:
 116    case GL_RGB5_A1:
 117    case GL_RGBA8:
 118    case GL_RGB10_A2:
 119    case GL_RGBA12:
 120    case GL_RGBA16:
 121       rb->_ActualFormat = GL_RGBA8;
 122       rb->DataType = GL_UNSIGNED_BYTE;
 123       rb->RedBits = 8;
 124       rb->GreenBits = 8;
 125       rb->BlueBits = 8;
 126       rb->AlphaBits = 8;
 127       cpp = 4;
 128       break;
 129    case GL_STENCIL_INDEX:
 130    case GL_STENCIL_INDEX1_EXT:
 131    case GL_STENCIL_INDEX4_EXT:
 132    case GL_STENCIL_INDEX8_EXT:
 133    case GL_STENCIL_INDEX16_EXT:
 134       /* alloc a depth+stencil buffer */
 135       rb->_ActualFormat = GL_DEPTH24_STENCIL8_EXT;
 136       rb->DataType = GL_UNSIGNED_INT_24_8_EXT;
 137       rb->StencilBits = 8;
 138       cpp = 4;
 139       break;
 140    case GL_DEPTH_COMPONENT16:
 141       rb->_ActualFormat = GL_DEPTH_COMPONENT16;
 142       rb->DataType = GL_UNSIGNED_SHORT;
 143       rb->DepthBits = 16;
 144       cpp = 2;
 145       break;
 146    case GL_DEPTH_COMPONENT:
 147    case GL_DEPTH_COMPONENT24:
 148    case GL_DEPTH_COMPONENT32:
 149       rb->_ActualFormat = GL_DEPTH24_STENCIL8_EXT;
 150       rb->DataType = GL_UNSIGNED_INT_24_8_EXT;
 151       rb->DepthBits = 24;
 152       cpp = 4;
 153       break;
 154    case GL_DEPTH_STENCIL_EXT:
 155    case GL_DEPTH24_STENCIL8_EXT:
 156       rb->_ActualFormat = GL_DEPTH24_STENCIL8_EXT;
 157       rb->DataType = GL_UNSIGNED_INT_24_8_EXT;
 158       rb->DepthBits = 24;
 159       rb->StencilBits = 8;
 160       cpp = 4;
 161       break;
 162    default:
 163       _mesa_problem(ctx,
 164                     "Unexpected format in intel_alloc_renderbuffer_storage");
 165       return GL_FALSE;
 166    }
 167
 168   radeonFlush(ctx);
 169
 170   if (rrb->bo)
 171     radeon_bo_unref(rrb->bo);
 172
 173
 174    if (software_buffer) {
 175       return _mesa_soft_renderbuffer_storage(ctx, rb, internalFormat,
 176                                              width, height);
 177    }
 178    else {
 179      uint32_t size = width * height * cpp;
 180      uint32_t pitch = ((cpp * width + 63) & ~63) / cpp;
 181
 182      fprintf(stderr,"Allocating %d x %d radeon RBO (pitch %d)\n", width,
 183           height, pitch);
 184
 185      rrb->pitch = pitch * cpp;
 186      rrb->cpp = cpp;
 187      rrb->bo = radeon_bo_open(radeon->radeonScreen->bom,
 188                               0,
 189                               size,
 190                               0,
 191                               RADEON_GEM_DOMAIN_VRAM,
 192                               0);
 193      rb->Width = width;
 194      rb->Height = height;
 195        return GL_TRUE;
 196    }
 197
 198 }
 199
 200
 201 /**
 202  * Called for each hardware renderbuffer when a _window_ is resized.
 203  * Just update fields.
 204  * Not used for user-created renderbuffers!
 205  */
 206 static GLboolean
 207 radeon_alloc_window_storage(GLcontext * ctx, struct gl_renderbuffer *rb,
 208                            GLenum internalFormat, GLuint width, GLuint height)
 209 {
 210    ASSERT(rb->Name == 0);
 211    rb->Width = width;
 212    rb->Height = height;
 213    rb->_ActualFormat = internalFormat;
 214
 215    return GL_TRUE;
 216 }
 217
 218
 219 static void
 220 radeon_resize_buffers(GLcontext *ctx, struct gl_framebuffer *fb,
 221                      GLuint width, GLuint height)
 222 {
 223      struct radeon_framebuffer *radeon_fb = (struct radeon_framebuffer*)fb;
 224    int i;
 225
 226    _mesa_resize_framebuffer(ctx, fb, width, height);
 227
 228    fb->Initialized = GL_TRUE; /* XXX remove someday */
 229
 230    if (fb->Name != 0) {
 231       return;
 232    }
 233
 234    /* Make sure all window system renderbuffers are up to date */
 235    for (i = 0; i < 2; i++) {
 236       struct gl_renderbuffer *rb = &radeon_fb->color_rb[i]->base;
 237
 238       /* only resize if size is changing */
 239       if (rb && (rb->Width != width || rb->Height != height)) {
 240          rb->AllocStorage(ctx, rb, rb->InternalFormat, width, height);
 241       }
 242    }
 243 }
 244
 245
 246 /** Dummy function for gl_renderbuffer::AllocStorage() */
 247 static GLboolean
 248 radeon_nop_alloc_storage(GLcontext * ctx, struct gl_renderbuffer *rb,
 249                          GLenum internalFormat, GLuint width, GLuint height)
 250 {
 251    _mesa_problem(ctx, "radeon_op_alloc_storage should never be called.");
 252    return GL_FALSE;
 253 }
 254
 255 struct radeon_renderbuffer *
 256 radeon_create_renderbuffer(GLenum format, __DRIdrawablePrivate *driDrawPriv)
 257 {
 258     struct radeon_renderbuffer *rrb;
 259
 260     rrb = CALLOC_STRUCT(radeon_renderbuffer);
 261     if (!rrb)
 262         return NULL;
 263
 264     _mesa_init_renderbuffer(&rrb->base, 0);
 265     rrb->base.ClassID = RADEON_RB_CLASS;
 266
 267     /* XXX format junk */
 268     switch (format) {
 269         case GL_RGB5:
 270             rrb->base._ActualFormat = GL_RGB5;
 271             rrb->base._BaseFormat = GL_RGBA;
 272             rrb->base.RedBits = 5;
 273             rrb->base.GreenBits = 6;
 274             rrb->base.BlueBits = 5;
 275             rrb->base.DataType = GL_UNSIGNED_BYTE;
 276             break;
 277         case GL_RGBA8:
 278             rrb->base._ActualFormat = GL_RGBA8;
 279             rrb->base._BaseFormat = GL_RGBA;
 280             rrb->base.RedBits = 8;
 281             rrb->base.GreenBits = 8;
 282             rrb->base.BlueBits = 8;
 283             rrb->base.AlphaBits = 8;
 284             rrb->base.DataType = GL_UNSIGNED_BYTE;
 285             break;
 286         case GL_STENCIL_INDEX8_EXT:
 287             rrb->base._ActualFormat = GL_STENCIL_INDEX8_EXT;
 288             rrb->base._BaseFormat = GL_STENCIL_INDEX;
 289             rrb->base.StencilBits = 8;
 290             rrb->base.DataType = GL_UNSIGNED_BYTE;
 291             break;
 292         case GL_DEPTH_COMPONENT16:
 293             rrb->base._ActualFormat = GL_DEPTH_COMPONENT16;
 294             rrb->base._BaseFormat = GL_DEPTH_COMPONENT;
 295             rrb->base.DepthBits = 16;
 296             rrb->base.DataType = GL_UNSIGNED_SHORT;
 297             break;
 298         case GL_DEPTH_COMPONENT24:
 299             rrb->base._ActualFormat = GL_DEPTH24_STENCIL8_EXT;
 300             rrb->base._BaseFormat = GL_DEPTH_COMPONENT;
 301             rrb->base.DepthBits = 24;
 302             rrb->base.DataType = GL_UNSIGNED_INT;
 303             break;
 304         case GL_DEPTH24_STENCIL8_EXT:
 305             rrb->base._ActualFormat = GL_DEPTH24_STENCIL8_EXT;
 306             rrb->base._BaseFormat = GL_DEPTH_STENCIL_EXT;
 307             rrb->base.DepthBits = 24;
 308             rrb->base.StencilBits = 8;
 309             rrb->base.DataType = GL_UNSIGNED_INT_24_8_EXT;
 310             break;
 311         default:
 312             fprintf(stderr, "%s: Unknown format 0x%04x\n", __FUNCTION__, format);
 313             _mesa_delete_renderbuffer(&rrb->base);
 314             return NULL;
 315     }
 316
 317     rrb->dPriv = driDrawPriv;
 318     rrb->base.InternalFormat = format;
 319
 320     rrb->base.Delete = radeon_delete_renderbuffer;
 321     rrb->base.AllocStorage = radeon_alloc_window_storage;
 322     rrb->base.GetPointer = radeon_get_pointer;
 323
 324     rrb->bo = NULL;
 325     return rrb;
 326 }
 327
 328 static struct gl_renderbuffer *
 329 radeon_new_renderbuffer(GLcontext * ctx, GLuint name)
 330 {
 331   struct radeon_renderbuffer *rrb;
 332
 333   rrb = CALLOC_STRUCT(radeon_renderbuffer);
 334   if (!rrb)
 335     return NULL;
 336
 337   _mesa_init_renderbuffer(&rrb->base, name);
 338   rrb->base.ClassID = RADEON_RB_CLASS;
 339
 340   rrb->base.Delete = radeon_delete_renderbuffer;
 341   rrb->base.AllocStorage = radeon_alloc_renderbuffer_storage;
 342   rrb->base.GetPointer = radeon_get_pointer;
 343
 344   return &rrb->base;
 345 }
 346
 347 static void
 348 radeon_bind_framebuffer(GLcontext * ctx, GLenum target,
 349                        struct gl_framebuffer *fb, struct gl_framebuffer *fbread)
 350 {
 351    if (target == GL_FRAMEBUFFER_EXT || target == GL_DRAW_FRAMEBUFFER_EXT) {
 352       radeon_draw_buffer(ctx, fb);
 353    }
 354    else {
 355       /* don't need to do anything if target == GL_READ_FRAMEBUFFER_EXT */
 356    }
 357 }
 358
 359 static void
 360 radeon_framebuffer_renderbuffer(GLcontext * ctx,
 361                                struct gl_framebuffer *fb,
 362                                GLenum attachment, struct gl_renderbuffer *rb)
 363 {
 364
 365    radeonFlush(ctx);
 366
 367    _mesa_framebuffer_renderbuffer(ctx, fb, attachment, rb);
 368    radeon_draw_buffer(ctx, fb);
 369 }
 370
 371
 372 static GLboolean
 373 radeon_update_wrapper(GLcontext *ctx, struct radeon_renderbuffer *rrb,
 374                      struct gl_texture_image *texImage)
 375 {
 376    if (texImage->TexFormat == &_mesa_texformat_argb8888) {
 377       rrb->cpp = 4;
 378       rrb->base._ActualFormat = GL_RGBA8;
 379       rrb->base._BaseFormat = GL_RGBA;
 380       rrb->base.DataType = GL_UNSIGNED_BYTE;
 381       DBG("Render to RGBA8 texture OK\n");
 382    }
 383    else if (texImage->TexFormat == &_mesa_texformat_argb4444) {
 384       rrb->cpp = 2;
 385       rrb->base._ActualFormat = GL_RGBA8;
 386       rrb->base._BaseFormat = GL_RGBA;
 387       rrb->base.DataType = GL_UNSIGNED_BYTE;
 388       DBG("Render to RGBA4 texture OK\n");
 389    }
 390    else if (texImage->TexFormat == &_mesa_texformat_rgb565) {
 391       rrb->cpp = 2;
 392       rrb->base._ActualFormat = GL_RGB5;
 393       rrb->base._BaseFormat = GL_RGB;
 394       rrb->base.DataType = GL_UNSIGNED_SHORT;
 395       DBG("Render to RGB5 texture OK\n");
 396    }
 397    else if (texImage->TexFormat == &_mesa_texformat_z16) {
 398       rrb->cpp = 2;
 399       rrb->base._ActualFormat = GL_DEPTH_COMPONENT16;
 400       rrb->base._BaseFormat = GL_DEPTH_COMPONENT;
 401       rrb->base.DataType = GL_UNSIGNED_SHORT;
 402       DBG("Render to DEPTH16 texture OK\n");
 403    }
 404    else if (texImage->TexFormat == &_mesa_texformat_s8_z24) {
 405       rrb->cpp = 4;
 406       rrb->base._ActualFormat = GL_DEPTH24_STENCIL8_EXT;
 407       rrb->base._BaseFormat = GL_DEPTH_STENCIL_EXT;
 408       rrb->base.DataType = GL_UNSIGNED_INT_24_8_EXT;
 409       DBG("Render to DEPTH_STENCIL texture OK\n");
 410    }
 411    else {
 412       DBG("Render to texture BAD FORMAT %d\n",
 413           texImage->TexFormat->MesaFormat);
 414       return GL_FALSE;
 415    }
 416
 417    rrb->pitch = texImage->Width * rrb->cpp;
 418    rrb->base.InternalFormat = rrb->base._ActualFormat;
 419    rrb->base.Width = texImage->Width;
 420    rrb->base.Height = texImage->Height;
 421    rrb->base.RedBits = texImage->TexFormat->RedBits;
 422    rrb->base.GreenBits = texImage->TexFormat->GreenBits;
 423    rrb->base.BlueBits = texImage->TexFormat->BlueBits;
 424    rrb->base.AlphaBits = texImage->TexFormat->AlphaBits;
 425    rrb->base.DepthBits = texImage->TexFormat->DepthBits;
 426
 427    rrb->base.Delete = radeon_delete_renderbuffer;
 428    rrb->base.AllocStorage = radeon_nop_alloc_storage;
 429
 430    return GL_TRUE;
 431 }
 432
 433
 434 static struct radeon_renderbuffer *
 435 radeon_wrap_texture(GLcontext * ctx, struct gl_texture_image *texImage)
 436 {
 437   const GLuint name = ~0;   /* not significant, but distinct for debugging */
 438   struct radeon_renderbuffer *rrb;
 439
 440    /* make an radeon_renderbuffer to wrap the texture image */
 441    rrb = CALLOC_STRUCT(radeon_renderbuffer);
 442    if (!rrb) {
 443       _mesa_error(ctx, GL_OUT_OF_MEMORY, "glFramebufferTexture");
 444       return NULL;
 445    }
 446
 447    _mesa_init_renderbuffer(&rrb->base, name);
 448    rrb->base.ClassID = RADEON_RB_CLASS;
 449
 450    if (!radeon_update_wrapper(ctx, rrb, texImage)) {
 451       _mesa_free(rrb);
 452       return NULL;
 453    }
 454
 455    return rrb;
 456
 457 }
 458 static void
 459 radeon_render_texture(GLcontext * ctx,
 460                      struct gl_framebuffer *fb,
 461                      struct gl_renderbuffer_attachment *att)
 462 {
 463    struct gl_texture_image *newImage
 464       = att->Texture->Image[att->CubeMapFace][att->TextureLevel];
 465    struct radeon_renderbuffer *rrb = radeon_renderbuffer(att->Renderbuffer);
 466    radeon_texture_image *radeon_image;
 467    GLuint imageOffset;
 468
 469    (void) fb;
 470
 471    ASSERT(newImage);
 472
 473    if (newImage->Border != 0) {
 474       /* Fallback on drawing to a texture with a border, which won't have a
 475        * miptree.
 476        */
 477       _mesa_reference_renderbuffer(&att->Renderbuffer, NULL);
 478       _mesa_render_texture(ctx, fb, att);
 479       return;
 480    }
 481    else if (!rrb) {
 482       rrb = radeon_wrap_texture(ctx, newImage);
 483       if (rrb) {
 484          /* bind the wrapper to the attachment point */
 485          _mesa_reference_renderbuffer(&att->Renderbuffer, &rrb->base);
 486       }
 487       else {
 488          /* fallback to software rendering */
 489          _mesa_render_texture(ctx, fb, att);
 490          return;
 491       }
 492    }
 493
 494    if (!radeon_update_wrapper(ctx, rrb, newImage)) {
 495        _mesa_reference_renderbuffer(&att->Renderbuffer, NULL);
 496        _mesa_render_texture(ctx, fb, att);
 497        return;
 498    }
 499
 500    DBG("Begin render texture tid %x tex=%u w=%d h=%d refcount=%d\n",
 501        _glthread_GetID(),
 502        att->Texture->Name, newImage->Width, newImage->Height,
 503        rrb->base.RefCount);
 504
 505    /* point the renderbufer's region to the texture image region */
 506    radeon_image = (radeon_texture_image *)newImage;
 507    if (rrb->bo != radeon_image->mt->bo) {
 508       if (rrb->bo)
 509         radeon_bo_unref(rrb->bo);
 510       rrb->bo = radeon_image->mt->bo;
 511       radeon_bo_ref(rrb->bo);
 512    }
 513
 514    /* compute offset of the particular 2D image within the texture region */
 515    imageOffset = radeon_miptree_image_offset(radeon_image->mt,
 516                                             att->CubeMapFace,
 517                                             att->TextureLevel);
 518
 519    if (att->Texture->Target == GL_TEXTURE_3D) {
 520       const GLuint *offsets = radeon_miptree_depth_offsets(radeon_image->mt,
 521                                                           att->TextureLevel);
 522       imageOffset += offsets[att->Zoffset];
 523    }
 524
 525    /* store that offset in the region */
 526    rrb->draw_offset = imageOffset;
 527
 528    /* update drawing region, etc */
 529    radeon_draw_buffer(ctx, fb);
 530 }
 531
 532 static void
 533 radeon_finish_render_texture(GLcontext * ctx,
 534                             struct gl_renderbuffer_attachment *att)
 535 {
 536
 537 }
 538 static void
 539 radeon_validate_framebuffer(GLcontext *ctx, struct gl_framebuffer *fb)
 540 {
 541 }
 542
 543 static void
 544 radeon_blit_framebuffer(GLcontext *ctx,
 545                        GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
 546                        GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
 547                        GLbitfield mask, GLenum filter)
 548 {
 549 }
 550
 551 void radeon_fbo_init(struct radeon_context *radeon)
 552 {
 553   radeon->glCtx->Driver.NewFramebuffer = radeon_new_framebuffer;
 554   radeon->glCtx->Driver.NewRenderbuffer = radeon_new_renderbuffer;
 555   radeon->glCtx->Driver.BindFramebuffer = radeon_bind_framebuffer;
 556   radeon->glCtx->Driver.FramebufferRenderbuffer = radeon_framebuffer_renderbuffer;
 557   radeon->glCtx->Driver.RenderTexture = radeon_render_texture;
 558   radeon->glCtx->Driver.FinishRenderTexture = radeon_finish_render_texture;
 559   radeon->glCtx->Driver.ResizeBuffers = radeon_resize_buffers;
 560   radeon->glCtx->Driver.ValidateFramebuffer = radeon_validate_framebuffer;
 561   radeon->glCtx->Driver.BlitFramebuffer = radeon_blit_framebuffer;
 562 }
 563
 564
 565 void radeon_renderbuffer_set_bo(struct radeon_renderbuffer *rb,
 566                                 struct radeon_bo *bo)
 567 {
 568   struct radeon_bo *old;
 569   old = rb->bo;
 570   rb->bo = bo;
 571   radeon_bo_ref(bo);
 572   if (old)
 573     radeon_bo_unref(old);
 574 }