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
  83       _mesa_GenBuffers(1, tmp_pbo);
  84
  85       /* We are not doing this inside meta_begin/end.  However, we know the
  86        * client doesn't have the given target bound, so we can go ahead and
  87        * squash it.  We'll set it back when we're done.
  88        */
  89       _mesa_BindBuffer(pbo_target, *tmp_pbo);
  90
  91       _mesa_BufferData(pbo_target, row_stride * height, pixels, GL_STREAM_DRAW);
  92
  93       buffer_obj = ctx->Unpack.BufferObj;
  94       pixels = NULL;
  95
  96       _mesa_BindBuffer(pbo_target, 0);
  97    }
  98
  99    _mesa_GenTextures(1, tmp_tex);
 100    tex_obj = _mesa_lookup_texture(ctx, *tmp_tex);
 101    _mesa_initialize_texture_object(ctx, tex_obj, *tmp_tex, GL_TEXTURE_2D);
 102    /* This must be set after _mesa_initialize_texture_object, not before. */
 103    tex_obj->Immutable = GL_TRUE;
 104    /* This is required for interactions with ARB_texture_view. */
 105    tex_obj->NumLayers = 1;
 106
 107    internal_format = _mesa_get_format_base_format(pbo_format);
 108
 109    tex_image = _mesa_get_tex_image(ctx, tex_obj, tex_obj->Target, 0);
 110    _mesa_init_teximage_fields(ctx, tex_image, width, height, 1,
 111                               0, internal_format, pbo_format);
 112
 113    read_only = pbo_target == GL_PIXEL_UNPACK_BUFFER;
 114    if (!ctx->Driver.SetTextureStorageForBufferObject(ctx, tex_obj,
 115                                                      buffer_obj,
 116                                                      (intptr_t)pixels,
 117                                                      row_stride,
 118                                                      read_only)) {
 119       _mesa_DeleteTextures(1, tmp_tex);
 120       _mesa_DeleteBuffers(1, tmp_pbo);
 121       return NULL;
 122    }
 123
 124    return tex_image;
 125 }
 126
 127 bool
 128 _mesa_meta_pbo_TexSubImage(struct gl_context *ctx, GLuint dims,
 129                            struct gl_texture_image *tex_image,
 130                            int xoffset, int yoffset, int zoffset,
 131                            int width, int height, int depth,
 132                            GLenum format, GLenum type, const void *pixels,
 133                            bool allocate_storage, bool create_pbo,
 134                            const struct gl_pixelstore_attrib *packing)
 135 {
 136    GLuint pbo = 0, pbo_tex = 0, fbos[2] = { 0, 0 };
 137    struct gl_texture_image *pbo_tex_image;
 138    GLenum status;
 139    bool success = false;
 140    int z;
 141
 142    /* XXX: This should probably be passed in from somewhere */
 143    const char *where = "_mesa_meta_pbo_TexSubImage";
 144
 145    if (!_mesa_is_bufferobj(packing->BufferObj) && !create_pbo)
 146       return false;
 147
 148    if (format == GL_DEPTH_COMPONENT ||
 149        format == GL_DEPTH_STENCIL ||
 150        format == GL_STENCIL_INDEX ||
 151        format == GL_COLOR_INDEX)
 152       return false;
 153
 154    if (ctx->_ImageTransferState)
 155       return false;
 156
 157    if (!_mesa_validate_pbo_access(dims, packing, width, height, depth,
 158                                   format, type, INT_MAX, pixels)) {
 159       _mesa_error(ctx, GL_INVALID_OPERATION,
 160                   "%s(out of bounds PBO access)", where);
 161       return true;
 162    }
 163
 164    if (_mesa_check_disallowed_mapping(packing->BufferObj)) {
 165       /* buffer is mapped - that's an error */
 166       _mesa_error(ctx, GL_INVALID_OPERATION, "%s(PBO is mapped)", where);
 167       return true;
 168    }
 169
 170    /* Only accept tightly packed pixels from the user. */
 171    if (packing->ImageHeight != 0 && packing->ImageHeight != height)
 172       return false;
 173
 174    /* For arrays, use a tall (height * depth) 2D texture. */
 175    pbo_tex_image = create_texture_for_pbo(ctx, create_pbo,
 176                                           GL_PIXEL_UNPACK_BUFFER,
 177                                           width, height * depth,
 178                                           format, type, pixels, packing,
 179                                           &pbo, &pbo_tex);
 180    if (!pbo_tex_image)
 181       return false;
 182
 183    if (allocate_storage)
 184       ctx->Driver.AllocTextureImageBuffer(ctx, tex_image);
 185
 186    /* Only stash the current FBO */
 187    _mesa_meta_begin(ctx, 0);
 188
 189    _mesa_GenFramebuffers(2, fbos);
 190    _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER, fbos[0]);
 191    _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER, fbos[1]);
 192
 193    if (tex_image->TexObject->Target == GL_TEXTURE_1D_ARRAY) {
 194       assert(depth == 1);
 195       depth = height;
 196       height = 1;
 197    }
 198
 199    _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 200                              pbo_tex_image, 0);
 201    /* If this passes on the first layer it should pass on the others */
 202    status = _mesa_CheckFramebufferStatus(GL_READ_FRAMEBUFFER);
 203    if (status != GL_FRAMEBUFFER_COMPLETE)
 204       goto fail;
 205
 206    _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 207                              tex_image, zoffset);
 208    /* If this passes on the first layer it should pass on the others */
 209    status = _mesa_CheckFramebufferStatus(GL_DRAW_FRAMEBUFFER);
 210    if (status != GL_FRAMEBUFFER_COMPLETE)
 211       goto fail;
 212
 213    _mesa_update_state(ctx);
 214
 215    if (_mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
 216                                   0, 0, width, height,
 217                                   xoffset, yoffset,
 218                                   xoffset + width, yoffset + height,
 219                                   GL_COLOR_BUFFER_BIT, GL_NEAREST))
 220       goto fail;
 221
 222    for (z = 1; z < depth; z++) {
 223       _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 224                                 pbo_tex_image, z);
 225       _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 226                                 tex_image, zoffset + z);
 227
 228       _mesa_update_state(ctx);
 229
 230       _mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
 231                                  0, z * height, width, (z + 1) * height,
 232                                  xoffset, yoffset,
 233                                  xoffset + width, yoffset + height,
 234                                  GL_COLOR_BUFFER_BIT, GL_NEAREST);
 235    }
 236
 237    success = true;
 238
 239 fail:
 240    _mesa_DeleteFramebuffers(2, fbos);
 241    _mesa_DeleteTextures(1, &pbo_tex);
 242    _mesa_DeleteBuffers(1, &pbo);
 243
 244    _mesa_meta_end(ctx);
 245
 246    return success;
 247 }
 248
 249 bool
 250 _mesa_meta_pbo_GetTexSubImage(struct gl_context *ctx, GLuint dims,
 251                               struct gl_texture_image *tex_image,
 252                               int xoffset, int yoffset, int zoffset,
 253                               int width, int height, int depth,
 254                               GLenum format, GLenum type, const void *pixels,
 255                               const struct gl_pixelstore_attrib *packing)
 256 {
 257    GLuint pbo = 0, pbo_tex = 0, fbos[2] = { 0, 0 };
 258    struct gl_texture_image *pbo_tex_image;
 259    GLenum status;
 260    bool success = false;
 261    int z;
 262
 263    /* XXX: This should probably be passed in from somewhere */
 264    const char *where = "_mesa_meta_pbo_GetTexSubImage";
 265
 266    if (!_mesa_is_bufferobj(packing->BufferObj))
 267       return false;
 268
 269    if (format == GL_DEPTH_COMPONENT ||
 270        format == GL_DEPTH_STENCIL ||
 271        format == GL_STENCIL_INDEX ||
 272        format == GL_COLOR_INDEX)
 273       return false;
 274
 275    if (ctx->_ImageTransferState)
 276       return false;
 277
 278    if (!_mesa_validate_pbo_access(dims, packing, width, height, depth,
 279                                   format, type, INT_MAX, pixels)) {
 280       _mesa_error(ctx, GL_INVALID_OPERATION,
 281                   "%s(out of bounds PBO access)", where);
 282       return true;
 283    }
 284
 285    if (_mesa_check_disallowed_mapping(packing->BufferObj)) {
 286       /* buffer is mapped - that's an error */
 287       _mesa_error(ctx, GL_INVALID_OPERATION, "%s(PBO is mapped)", where);
 288       return true;
 289    }
 290
 291    /* Only accept tightly packed pixels from the user. */
 292    if (packing->ImageHeight != 0 && packing->ImageHeight != height)
 293       return false;
 294
 295    /* For arrays, use a tall (height * depth) 2D texture. */
 296    pbo_tex_image = create_texture_for_pbo(ctx, false, GL_PIXEL_PACK_BUFFER,
 297                                           width, height * depth,
 298                                           format, type, pixels, packing,
 299                                           &pbo, &pbo_tex);
 300    if (!pbo_tex_image)
 301       return false;
 302
 303    /* Only stash the current FBO */
 304    _mesa_meta_begin(ctx, 0);
 305
 306    _mesa_GenFramebuffers(2, fbos);
 307
 308    if (tex_image && tex_image->TexObject->Target == GL_TEXTURE_1D_ARRAY) {
 309       assert(depth == 1);
 310       depth = height;
 311       height = 1;
 312    }
 313
 314    /* If we were given a texture, bind it to the read framebuffer.  If not,
 315     * we're doing a ReadPixels and we should just use whatever framebuffer
 316     * the client has bound.
 317     */
 318    if (tex_image) {
 319       _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER, fbos[0]);
 320       _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 321                                 tex_image, zoffset);
 322       /* If this passes on the first layer it should pass on the others */
 323       status = _mesa_CheckFramebufferStatus(GL_READ_FRAMEBUFFER);
 324       if (status != GL_FRAMEBUFFER_COMPLETE)
 325          goto fail;
 326    } else {
 327       assert(depth == 1);
 328    }
 329
 330    _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER, fbos[1]);
 331    _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 332                              pbo_tex_image, 0);
 333    /* If this passes on the first layer it should pass on the others */
 334    status = _mesa_CheckFramebufferStatus(GL_DRAW_FRAMEBUFFER);
 335    if (status != GL_FRAMEBUFFER_COMPLETE)
 336       goto fail;
 337
 338    _mesa_update_state(ctx);
 339
 340    if (_mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
 341                                   xoffset, yoffset,
 342                                   xoffset + width, yoffset + height,
 343                                   0, 0, width, height,
 344                                   GL_COLOR_BUFFER_BIT, GL_NEAREST))
 345       goto fail;
 346
 347    for (z = 1; z < depth; z++) {
 348       _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 349                                 tex_image, zoffset + z);
 350       _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 351                                 pbo_tex_image, z);
 352
 353       _mesa_update_state(ctx);
 354
 355       _mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
 356                                  xoffset, yoffset,
 357                                  xoffset + width, yoffset + height,
 358                                  0, z * height, width, (z + 1) * height,
 359                                  GL_COLOR_BUFFER_BIT, GL_NEAREST);
 360    }
 361
 362    success = true;
 363
 364 fail:
 365    _mesa_DeleteFramebuffers(2, fbos);
 366    _mesa_DeleteTextures(1, &pbo_tex);
 367    _mesa_DeleteBuffers(1, &pbo);
 368
 369    _mesa_meta_end(ctx);
 370
 371    return success;
 372 }