src/mesa/drivers/common/meta_tex_subimage.c

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 2015 Intel Corporation.  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 "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included
  14  * in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22  * OTHER DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Jason Ekstrand <jason.ekstrand@intel.com>
  26  */
  27
  28 #include "bufferobj.h"
  29 #include "buffers.h"
  30 #include "fbobject.h"
  31 #include "glformats.h"
  32 #include "glheader.h"
  33 #include "image.h"
  34 #include "macros.h"
  35 #include "meta.h"
  36 #include "pbo.h"
  37 #include "shaderapi.h"
  38 #include "state.h"
  39 #include "teximage.h"
  40 #include "texobj.h"
  41 #include "texstate.h"
  42 #include "uniforms.h"
  43 #include "varray.h"
  44
  45 static struct gl_texture_image *
  46 create_texture_for_pbo(struct gl_context *ctx, bool create_pbo,
  47                        GLenum pbo_target, int width, int height,
  48                        GLenum format, GLenum type, const void *pixels,
  49                        const struct gl_pixelstore_attrib *packing,
  50                        GLuint *tmp_pbo, GLuint *tmp_tex)
  51 {
  52    uint32_t pbo_format;
  53    GLenum internal_format;
  54    unsigned row_stride;
  55    struct gl_buffer_object *buffer_obj;
  56    struct gl_texture_object *tex_obj;
  57    struct gl_texture_image *tex_image;
  58    bool read_only;
  59
  60    if (packing->SwapBytes ||
  61        packing->LsbFirst ||
  62        packing->Invert)
  63       return NULL;
  64
  65    pbo_format = _mesa_format_from_format_and_type(format, type);
  66    if (_mesa_format_is_mesa_array_format(pbo_format))
  67       pbo_format = _mesa_format_from_array_format(pbo_format);
  68
  69    if (!pbo_format || !ctx->TextureFormatSupported[pbo_format])
  70       return NULL;
  71
  72    /* Account for SKIP_PIXELS, SKIP_ROWS, ALIGNMENT, and SKIP_IMAGES */
  73    pixels = _mesa_image_address3d(packing, pixels,
  74                                   width, height, format, type, 0, 0, 0);
  75    row_stride = _mesa_image_row_stride(packing, width, format, type);
  76
  77    if (_mesa_is_bufferobj(packing->BufferObj)) {
  78       *tmp_pbo = 0;
  79       buffer_obj = packing->BufferObj;
  80    } else {
  81       assert(create_pbo);
  82       bool is_pixel_pack = pbo_target == GL_PIXEL_PACK_BUFFER;
  83
  84       _mesa_GenBuffers(1, tmp_pbo);
  85
  86       /* We are not doing this inside meta_begin/end.  However, we know the
  87        * client doesn't have the given target bound, so we can go ahead and
  88        * squash it.  We'll set it back when we're done.
  89        */
  90       _mesa_BindBuffer(pbo_target, *tmp_pbo);
  91
  92       /* In case of GL_PIXEL_PACK_BUFFER, pass null pointer for the pixel
  93        * data to avoid unnecessary data copying in _mesa_BufferData().
  94        */
  95       if (is_pixel_pack)
  96          _mesa_BufferData(pbo_target, row_stride * height, NULL,
  97                           GL_STREAM_READ);
  98       else
  99          _mesa_BufferData(pbo_target, row_stride * height, pixels,
 100                           GL_STREAM_DRAW);
 101
 102       buffer_obj = packing->BufferObj;
 103       pixels = NULL;
 104
 105       _mesa_BindBuffer(pbo_target, 0);
 106    }
 107
 108    _mesa_GenTextures(1, tmp_tex);
 109    tex_obj = _mesa_lookup_texture(ctx, *tmp_tex);
 110    _mesa_initialize_texture_object(ctx, tex_obj, *tmp_tex, GL_TEXTURE_2D);
 111    /* This must be set after _mesa_initialize_texture_object, not before. */
 112    tex_obj->Immutable = GL_TRUE;
 113    /* This is required for interactions with ARB_texture_view. */
 114    tex_obj->NumLayers = 1;
 115
 116    internal_format = _mesa_get_format_base_format(pbo_format);
 117
 118    tex_image = _mesa_get_tex_image(ctx, tex_obj, tex_obj->Target, 0);
 119    _mesa_init_teximage_fields(ctx, tex_image, width, height, 1,
 120                               0, internal_format, pbo_format);
 121
 122    read_only = pbo_target == GL_PIXEL_UNPACK_BUFFER;
 123    if (!ctx->Driver.SetTextureStorageForBufferObject(ctx, tex_obj,
 124                                                      buffer_obj,
 125                                                      (intptr_t)pixels,
 126                                                      row_stride,
 127                                                      read_only)) {
 128       _mesa_DeleteTextures(1, tmp_tex);
 129       _mesa_DeleteBuffers(1, tmp_pbo);
 130       return NULL;
 131    }
 132
 133    return tex_image;
 134 }
 135
 136 bool
 137 _mesa_meta_pbo_TexSubImage(struct gl_context *ctx, GLuint dims,
 138                            struct gl_texture_image *tex_image,
 139                            int xoffset, int yoffset, int zoffset,
 140                            int width, int height, int depth,
 141                            GLenum format, GLenum type, const void *pixels,
 142                            bool allocate_storage, bool create_pbo,
 143                            const struct gl_pixelstore_attrib *packing)
 144 {
 145    GLuint pbo = 0, pbo_tex = 0, fbos[2] = { 0, 0 };
 146    struct gl_texture_image *pbo_tex_image;
 147    GLenum status;
 148    bool success = false;
 149    int z, iters;
 150
 151    /* XXX: This should probably be passed in from somewhere */
 152    const char *where = "_mesa_meta_pbo_TexSubImage";
 153
 154    if (!_mesa_is_bufferobj(packing->BufferObj) && !create_pbo)
 155       return false;
 156
 157    if (format == GL_DEPTH_COMPONENT ||
 158        format == GL_DEPTH_STENCIL ||
 159        format == GL_STENCIL_INDEX ||
 160        format == GL_COLOR_INDEX)
 161       return false;
 162
 163    if (ctx->_ImageTransferState)
 164       return false;
 165
 166    if (!_mesa_validate_pbo_access(dims, packing, width, height, depth,
 167                                   format, type, INT_MAX, pixels)) {
 168       _mesa_error(ctx, GL_INVALID_OPERATION,
 169                   "%s(out of bounds PBO access)", where);
 170       return true;
 171    }
 172
 173    if (_mesa_check_disallowed_mapping(packing->BufferObj)) {
 174       /* buffer is mapped - that's an error */
 175       _mesa_error(ctx, GL_INVALID_OPERATION, "%s(PBO is mapped)", where);
 176       return true;
 177    }
 178
 179    /* Only accept tightly packed pixels from the user. */
 180    if (packing->ImageHeight != 0 && packing->ImageHeight != height)
 181       return false;
 182
 183    /* For arrays, use a tall (height * depth) 2D texture. */
 184    pbo_tex_image = create_texture_for_pbo(ctx, create_pbo,
 185                                           GL_PIXEL_UNPACK_BUFFER,
 186                                           width, height * depth,
 187                                           format, type, pixels, packing,
 188                                           &pbo, &pbo_tex);
 189    if (!pbo_tex_image)
 190       return false;
 191
 192    if (allocate_storage)
 193       ctx->Driver.AllocTextureImageBuffer(ctx, tex_image);
 194
 195    /* Only stash the current FBO */
 196    _mesa_meta_begin(ctx, 0);
 197
 198    _mesa_GenFramebuffers(2, fbos);
 199    _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER, fbos[0]);
 200    _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER, fbos[1]);
 201
 202    _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 203                              pbo_tex_image, 0);
 204    /* If this passes on the first layer it should pass on the others */
 205    status = _mesa_CheckFramebufferStatus(GL_READ_FRAMEBUFFER);
 206    if (status != GL_FRAMEBUFFER_COMPLETE)
 207       goto fail;
 208
 209    _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 210                              tex_image, zoffset);
 211    /* If this passes on the first layer it should pass on the others */
 212    status = _mesa_CheckFramebufferStatus(GL_DRAW_FRAMEBUFFER);
 213    if (status != GL_FRAMEBUFFER_COMPLETE)
 214       goto fail;
 215
 216    _mesa_update_state(ctx);
 217
 218    if (_mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
 219                                   0, 0, width, height,
 220                                   xoffset, yoffset,
 221                                   xoffset + width, yoffset + height,
 222                                   GL_COLOR_BUFFER_BIT, GL_NEAREST))
 223       goto fail;
 224
 225    iters = tex_image->TexObject->Target == GL_TEXTURE_1D_ARRAY ?
 226            height : depth;
 227
 228    for (z = 1; z < iters; z++) {
 229       _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 230                                 pbo_tex_image, z);
 231       _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 232                                 tex_image, zoffset + z);
 233
 234       _mesa_update_state(ctx);
 235
 236       if (tex_image->TexObject->Target == GL_TEXTURE_1D_ARRAY)
 237          _mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
 238                                     0, z, width, z + 1,
 239                                     xoffset, yoffset,
 240                                     xoffset + width, yoffset + 1,
 241                                     GL_COLOR_BUFFER_BIT, GL_NEAREST);
 242       else
 243          _mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
 244                                     0, z * height, width, (z + 1) * height,
 245                                     xoffset, yoffset,
 246                                     xoffset + width, yoffset + height,
 247                                     GL_COLOR_BUFFER_BIT, GL_NEAREST);
 248    }
 249
 250    success = true;
 251
 252 fail:
 253    _mesa_DeleteFramebuffers(2, fbos);
 254    _mesa_DeleteTextures(1, &pbo_tex);
 255    _mesa_DeleteBuffers(1, &pbo);
 256
 257    _mesa_meta_end(ctx);
 258
 259    return success;
 260 }
 261
 262 bool
 263 _mesa_meta_pbo_GetTexSubImage(struct gl_context *ctx, GLuint dims,
 264                               struct gl_texture_image *tex_image,
 265                               int xoffset, int yoffset, int zoffset,
 266                               int width, int height, int depth,
 267                               GLenum format, GLenum type, const void *pixels,
 268                               const struct gl_pixelstore_attrib *packing)
 269 {
 270    GLuint pbo = 0, pbo_tex = 0, fbos[2] = { 0, 0 };
 271    struct gl_texture_image *pbo_tex_image;
 272    GLenum status;
 273    bool success = false;
 274    int z, iters;
 275
 276    /* XXX: This should probably be passed in from somewhere */
 277    const char *where = "_mesa_meta_pbo_GetTexSubImage";
 278
 279    if (!_mesa_is_bufferobj(packing->BufferObj))
 280       return false;
 281
 282    if (format == GL_DEPTH_COMPONENT ||
 283        format == GL_DEPTH_STENCIL ||
 284        format == GL_STENCIL_INDEX ||
 285        format == GL_COLOR_INDEX)
 286       return false;
 287
 288    if (ctx->_ImageTransferState)
 289       return false;
 290
 291    if (!_mesa_validate_pbo_access(dims, packing, width, height, depth,
 292                                   format, type, INT_MAX, pixels)) {
 293       _mesa_error(ctx, GL_INVALID_OPERATION,
 294                   "%s(out of bounds PBO access)", where);
 295       return true;
 296    }
 297
 298    if (_mesa_check_disallowed_mapping(packing->BufferObj)) {
 299       /* buffer is mapped - that's an error */
 300       _mesa_error(ctx, GL_INVALID_OPERATION, "%s(PBO is mapped)", where);
 301       return true;
 302    }
 303
 304    /* Only accept tightly packed pixels from the user. */
 305    if (packing->ImageHeight != 0 && packing->ImageHeight != height)
 306       return false;
 307
 308    /* For arrays, use a tall (height * depth) 2D texture. */
 309    pbo_tex_image = create_texture_for_pbo(ctx, false, GL_PIXEL_PACK_BUFFER,
 310                                           width, height * depth,
 311                                           format, type, pixels, packing,
 312                                           &pbo, &pbo_tex);
 313    if (!pbo_tex_image)
 314       return false;
 315
 316    /* Only stash the current FBO */
 317    _mesa_meta_begin(ctx, 0);
 318
 319    _mesa_GenFramebuffers(2, fbos);
 320
 321    /* If we were given a texture, bind it to the read framebuffer.  If not,
 322     * we're doing a ReadPixels and we should just use whatever framebuffer
 323     * the client has bound.
 324     */
 325    if (tex_image) {
 326       _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER, fbos[0]);
 327       _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 328                                 tex_image, zoffset);
 329       /* If this passes on the first layer it should pass on the others */
 330       status = _mesa_CheckFramebufferStatus(GL_READ_FRAMEBUFFER);
 331       if (status != GL_FRAMEBUFFER_COMPLETE)
 332          goto fail;
 333    } else {
 334       assert(depth == 1);
 335    }
 336
 337    _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER, fbos[1]);
 338    _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 339                              pbo_tex_image, 0);
 340    /* If this passes on the first layer it should pass on the others */
 341    status = _mesa_CheckFramebufferStatus(GL_DRAW_FRAMEBUFFER);
 342    if (status != GL_FRAMEBUFFER_COMPLETE)
 343       goto fail;
 344
 345    _mesa_update_state(ctx);
 346
 347    if (_mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
 348                                   xoffset, yoffset,
 349                                   xoffset + width, yoffset + height,
 350                                   0, 0, width, height,
 351                                   GL_COLOR_BUFFER_BIT, GL_NEAREST))
 352       goto fail;
 353
 354    if (tex_image && tex_image->TexObject->Target == GL_TEXTURE_1D_ARRAY)
 355       iters = height;
 356    else
 357       iters = depth;
 358
 359    for (z = 1; z < iters; z++) {
 360       _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 361                                 tex_image, zoffset + z);
 362       _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 363                                 pbo_tex_image, z);
 364
 365       _mesa_update_state(ctx);
 366
 367       if (tex_image->TexObject->Target == GL_TEXTURE_1D_ARRAY)
 368          _mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
 369                                     xoffset, yoffset,
 370                                     xoffset + width, yoffset + 1,
 371                                     0, z, width, z + 1,
 372                                     GL_COLOR_BUFFER_BIT, GL_NEAREST);
 373       else
 374          _mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
 375                                     xoffset, yoffset,
 376                                     xoffset + width, yoffset + height,
 377                                     0, z * height, width, (z + 1) * height,
 378                                     GL_COLOR_BUFFER_BIT, GL_NEAREST);
 379    }
 380
 381    success = true;
 382
 383 fail:
 384    _mesa_DeleteFramebuffers(2, fbos);
 385    _mesa_DeleteTextures(1, &pbo_tex);
 386    _mesa_DeleteBuffers(1, &pbo);
 387
 388    _mesa_meta_end(ctx);
 389
 390    return success;
 391 }