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, int depth,
  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->ImageHeight != 0 && packing->ImageHeight != height) ||
  61        packing->SwapBytes ||
  62        packing->LsbFirst ||
  63        packing->Invert)
  64       return NULL;
  65
  66    pbo_format = _mesa_format_from_format_and_type(format, type);
  67    if (_mesa_format_is_mesa_array_format(pbo_format))
  68       pbo_format = _mesa_format_from_array_format(pbo_format);
  69
  70    if (!pbo_format || !ctx->TextureFormatSupported[pbo_format])
  71       return NULL;
  72
  73    /* Account for SKIP_PIXELS, SKIP_ROWS, ALIGNMENT, and SKIP_IMAGES */
  74    pixels = _mesa_image_address3d(packing, pixels,
  75                                   width, height, format, type, 0, 0, 0);
  76    row_stride = _mesa_image_row_stride(packing, width, format, type);
  77
  78    if (_mesa_is_bufferobj(packing->BufferObj)) {
  79       *tmp_pbo = 0;
  80       buffer_obj = packing->BufferObj;
  81    } else {
  82       assert(create_pbo);
  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       _mesa_BufferData(pbo_target, row_stride * height, pixels, GL_STREAM_DRAW);
  93
  94       buffer_obj = ctx->Unpack.BufferObj;
  95       pixels = NULL;
  96
  97       _mesa_BindBuffer(pbo_target, 0);
  98    }
  99
 100    _mesa_GenTextures(1, tmp_tex);
 101    tex_obj = _mesa_lookup_texture(ctx, *tmp_tex);
 102    tex_obj->Target = depth > 1 ? GL_TEXTURE_2D_ARRAY : GL_TEXTURE_2D;
 103    tex_obj->Immutable = GL_TRUE;
 104    _mesa_initialize_texture_object(ctx, tex_obj, *tmp_tex, GL_TEXTURE_2D);
 105
 106    internal_format = _mesa_get_format_base_format(pbo_format);
 107
 108    tex_image = _mesa_get_tex_image(ctx, tex_obj, tex_obj->Target, 0);
 109    _mesa_init_teximage_fields(ctx, tex_image, width, height, depth,
 110                               0, internal_format, pbo_format);
 111
 112    read_only = pbo_target == GL_PIXEL_UNPACK_BUFFER;
 113    if (!ctx->Driver.SetTextureStorageForBufferObject(ctx, tex_obj,
 114                                                      buffer_obj,
 115                                                      (intptr_t)pixels,
 116                                                      row_stride,
 117                                                      read_only)) {
 118       _mesa_DeleteTextures(1, tmp_tex);
 119       _mesa_DeleteBuffers(1, tmp_pbo);
 120       return NULL;
 121    }
 122
 123    return tex_image;
 124 }
 125
 126 bool
 127 _mesa_meta_pbo_TexSubImage(struct gl_context *ctx, GLuint dims,
 128                            struct gl_texture_image *tex_image,
 129                            int xoffset, int yoffset, int zoffset,
 130                            int width, int height, int depth,
 131                            GLenum format, GLenum type, const void *pixels,
 132                            bool allocate_storage, bool create_pbo,
 133                            const struct gl_pixelstore_attrib *packing)
 134 {
 135    GLuint pbo = 0, pbo_tex = 0, fbos[2] = { 0, 0 };
 136    struct gl_texture_image *pbo_tex_image;
 137    GLenum status;
 138    bool success = false;
 139
 140    /* XXX: This should probably be passed in from somewhere */
 141    const char *where = "_mesa_meta_pbo_TexSubImage";
 142
 143    if (!_mesa_is_bufferobj(packing->BufferObj) && !create_pbo)
 144       return false;
 145
 146    if (format == GL_DEPTH_COMPONENT ||
 147        format == GL_DEPTH_STENCIL ||
 148        format == GL_STENCIL_INDEX ||
 149        format == GL_COLOR_INDEX)
 150       return false;
 151
 152    if (ctx->_ImageTransferState)
 153       return false;
 154
 155    if (!_mesa_validate_pbo_access(dims, packing, width, height, depth,
 156                                   format, type, INT_MAX, pixels)) {
 157       _mesa_error(ctx, GL_INVALID_OPERATION,
 158                   "%s(out of bounds PBO access)", where);
 159       return true;
 160    }
 161
 162    if (_mesa_check_disallowed_mapping(packing->BufferObj)) {
 163       /* buffer is mapped - that's an error */
 164       _mesa_error(ctx, GL_INVALID_OPERATION, "%s(PBO is mapped)", where);
 165       return true;
 166    }
 167
 168    pbo_tex_image = create_texture_for_pbo(ctx, create_pbo,
 169                                           GL_PIXEL_UNPACK_BUFFER,
 170                                           width, height, depth,
 171                                           format, type, pixels, packing,
 172                                           &pbo, &pbo_tex);
 173    if (!pbo_tex_image)
 174       return false;
 175
 176    if (allocate_storage)
 177       ctx->Driver.AllocTextureImageBuffer(ctx, tex_image);
 178
 179    /* Only stash the current FBO */
 180    _mesa_meta_begin(ctx, 0);
 181
 182    _mesa_GenFramebuffers(2, fbos);
 183    _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER, fbos[0]);
 184    _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER, fbos[1]);
 185
 186    if (tex_image->TexObject->Target == GL_TEXTURE_1D_ARRAY) {
 187       assert(depth == 1);
 188       depth = height;
 189       height = 1;
 190    }
 191
 192    _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 193                              pbo_tex_image, 0);
 194    /* If this passes on the first layer it should pass on the others */
 195    status = _mesa_CheckFramebufferStatus(GL_READ_FRAMEBUFFER);
 196    if (status != GL_FRAMEBUFFER_COMPLETE)
 197       goto fail;
 198
 199    _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 200                              tex_image, zoffset);
 201    /* If this passes on the first layer it should pass on the others */
 202    status = _mesa_CheckFramebufferStatus(GL_DRAW_FRAMEBUFFER);
 203    if (status != GL_FRAMEBUFFER_COMPLETE)
 204       goto fail;
 205
 206    _mesa_update_state(ctx);
 207
 208    if (_mesa_meta_BlitFramebuffer(ctx, 0, 0, width, height,
 209                                   xoffset, yoffset,
 210                                   xoffset + width, yoffset + height,
 211                                   GL_COLOR_BUFFER_BIT, GL_NEAREST))
 212       goto fail;
 213
 214    for (int z = 1; z < depth; z++) {
 215       _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 216                                 pbo_tex_image, z);
 217       _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 218                                 tex_image, zoffset + z);
 219
 220       _mesa_update_state(ctx);
 221
 222       _mesa_meta_BlitFramebuffer(ctx, 0, 0, width, height,
 223                                  xoffset, yoffset,
 224                                  xoffset + width, yoffset + height,
 225                                  GL_COLOR_BUFFER_BIT, GL_NEAREST);
 226    }
 227
 228    success = true;
 229
 230 fail:
 231    _mesa_DeleteFramebuffers(2, fbos);
 232    _mesa_DeleteTextures(1, &pbo_tex);
 233    _mesa_DeleteBuffers(1, &pbo);
 234
 235    _mesa_meta_end(ctx);
 236
 237    return success;
 238 }
 239
 240 bool
 241 _mesa_meta_pbo_GetTexSubImage(struct gl_context *ctx, GLuint dims,
 242                               struct gl_texture_image *tex_image,
 243                               int xoffset, int yoffset, int zoffset,
 244                               int width, int height, int depth,
 245                               GLenum format, GLenum type, const void *pixels,
 246                               const struct gl_pixelstore_attrib *packing)
 247 {
 248    GLuint pbo = 0, pbo_tex = 0, fbos[2] = { 0, 0 };
 249    struct gl_texture_image *pbo_tex_image;
 250    GLenum status;
 251    bool success = false;
 252
 253    /* XXX: This should probably be passed in from somewhere */
 254    const char *where = "_mesa_meta_pbo_GetTexSubImage";
 255
 256    if (!_mesa_is_bufferobj(packing->BufferObj))
 257       return false;
 258
 259    if (format == GL_DEPTH_COMPONENT ||
 260        format == GL_DEPTH_STENCIL ||
 261        format == GL_STENCIL_INDEX ||
 262        format == GL_COLOR_INDEX)
 263       return false;
 264
 265    if (ctx->_ImageTransferState)
 266       return false;
 267
 268    if (!_mesa_validate_pbo_access(dims, packing, width, height, depth,
 269                                   format, type, INT_MAX, pixels)) {
 270       _mesa_error(ctx, GL_INVALID_OPERATION,
 271                   "%s(out of bounds PBO access)", where);
 272       return true;
 273    }
 274
 275    if (_mesa_check_disallowed_mapping(packing->BufferObj)) {
 276       /* buffer is mapped - that's an error */
 277       _mesa_error(ctx, GL_INVALID_OPERATION, "%s(PBO is mapped)", where);
 278       return true;
 279    }
 280
 281    pbo_tex_image = create_texture_for_pbo(ctx, false, GL_PIXEL_PACK_BUFFER,
 282                                           width, height, depth,
 283                                           format, type, pixels, packing,
 284                                           &pbo, &pbo_tex);
 285    if (!pbo_tex_image)
 286       return false;
 287
 288    /* Only stash the current FBO */
 289    _mesa_meta_begin(ctx, 0);
 290
 291    _mesa_GenFramebuffers(2, fbos);
 292
 293    if (tex_image && tex_image->TexObject->Target == GL_TEXTURE_1D_ARRAY) {
 294       assert(depth == 1);
 295       depth = height;
 296       height = 1;
 297    }
 298
 299    /* If we were given a texture, bind it to the read framebuffer.  If not,
 300     * we're doing a ReadPixels and we should just use whatever framebuffer
 301     * the client has bound.
 302     */
 303    if (tex_image) {
 304       _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER, fbos[0]);
 305       _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 306                                 tex_image, zoffset);
 307       /* If this passes on the first layer it should pass on the others */
 308       status = _mesa_CheckFramebufferStatus(GL_READ_FRAMEBUFFER);
 309       if (status != GL_FRAMEBUFFER_COMPLETE)
 310          goto fail;
 311    } else {
 312       assert(depth == 1);
 313    }
 314
 315    _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER, fbos[1]);
 316    _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 317                              pbo_tex_image, 0);
 318    /* If this passes on the first layer it should pass on the others */
 319    status = _mesa_CheckFramebufferStatus(GL_DRAW_FRAMEBUFFER);
 320    if (status != GL_FRAMEBUFFER_COMPLETE)
 321       goto fail;
 322
 323    _mesa_update_state(ctx);
 324
 325    if (_mesa_meta_BlitFramebuffer(ctx, xoffset, yoffset,
 326                                   xoffset + width, yoffset + height,
 327                                   0, 0, width, height,
 328                                   GL_COLOR_BUFFER_BIT, GL_NEAREST))
 329       goto fail;
 330
 331    for (int z = 1; z < depth; z++) {
 332       _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 333                                 tex_image, zoffset + z);
 334       _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 335                                 pbo_tex_image, z);
 336
 337       _mesa_update_state(ctx);
 338
 339       _mesa_meta_BlitFramebuffer(ctx, xoffset, yoffset,
 340                                  xoffset + width, yoffset + height,
 341                                  0, 0, width, height,
 342                                  GL_COLOR_BUFFER_BIT, GL_NEAREST);
 343    }
 344
 345    success = true;
 346
 347 fail:
 348    _mesa_DeleteFramebuffers(2, fbos);
 349    _mesa_DeleteTextures(1, &pbo_tex);
 350    _mesa_DeleteBuffers(1, &pbo);
 351
 352    _mesa_meta_end(ctx);
 353
 354    return success;
 355 }