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       if (is_pixel_pack)
  93          _mesa_BufferData(pbo_target, row_stride * height, pixels,
  94                           GL_STREAM_READ);
  95       else
  96          _mesa_BufferData(pbo_target, row_stride * height, pixels,
  97                           GL_STREAM_DRAW);
  98
  99       buffer_obj = packing->BufferObj;
 100       pixels = NULL;
 101
 102       _mesa_BindBuffer(pbo_target, 0);
 103    }
 104
 105    _mesa_GenTextures(1, tmp_tex);
 106    tex_obj = _mesa_lookup_texture(ctx, *tmp_tex);
 107    _mesa_initialize_texture_object(ctx, tex_obj, *tmp_tex, GL_TEXTURE_2D);
 108    /* This must be set after _mesa_initialize_texture_object, not before. */
 109    tex_obj->Immutable = GL_TRUE;
 110    /* This is required for interactions with ARB_texture_view. */
 111    tex_obj->NumLayers = 1;
 112
 113    internal_format = _mesa_get_format_base_format(pbo_format);
 114
 115    tex_image = _mesa_get_tex_image(ctx, tex_obj, tex_obj->Target, 0);
 116    _mesa_init_teximage_fields(ctx, tex_image, width, height, 1,
 117                               0, internal_format, pbo_format);
 118
 119    read_only = pbo_target == GL_PIXEL_UNPACK_BUFFER;
 120    if (!ctx->Driver.SetTextureStorageForBufferObject(ctx, tex_obj,
 121                                                      buffer_obj,
 122                                                      (intptr_t)pixels,
 123                                                      row_stride,
 124                                                      read_only)) {
 125       _mesa_DeleteTextures(1, tmp_tex);
 126       _mesa_DeleteBuffers(1, tmp_pbo);
 127       return NULL;
 128    }
 129
 130    return tex_image;
 131 }
 132
 133 bool
 134 _mesa_meta_pbo_TexSubImage(struct gl_context *ctx, GLuint dims,
 135                            struct gl_texture_image *tex_image,
 136                            int xoffset, int yoffset, int zoffset,
 137                            int width, int height, int depth,
 138                            GLenum format, GLenum type, const void *pixels,
 139                            bool allocate_storage, bool create_pbo,
 140                            const struct gl_pixelstore_attrib *packing)
 141 {
 142    GLuint pbo = 0, pbo_tex = 0, fbos[2] = { 0, 0 };
 143    struct gl_texture_image *pbo_tex_image;
 144    GLenum status;
 145    bool success = false;
 146    int z, iters;
 147
 148    /* XXX: This should probably be passed in from somewhere */
 149    const char *where = "_mesa_meta_pbo_TexSubImage";
 150
 151    if (!_mesa_is_bufferobj(packing->BufferObj) && !create_pbo)
 152       return false;
 153
 154    if (format == GL_DEPTH_COMPONENT ||
 155        format == GL_DEPTH_STENCIL ||
 156        format == GL_STENCIL_INDEX ||
 157        format == GL_COLOR_INDEX)
 158       return false;
 159
 160    if (ctx->_ImageTransferState)
 161       return false;
 162
 163    if (!_mesa_validate_pbo_access(dims, packing, width, height, depth,
 164                                   format, type, INT_MAX, pixels)) {
 165       _mesa_error(ctx, GL_INVALID_OPERATION,
 166                   "%s(out of bounds PBO access)", where);
 167       return true;
 168    }
 169
 170    if (_mesa_check_disallowed_mapping(packing->BufferObj)) {
 171       /* buffer is mapped - that's an error */
 172       _mesa_error(ctx, GL_INVALID_OPERATION, "%s(PBO is mapped)", where);
 173       return true;
 174    }
 175
 176    /* Only accept tightly packed pixels from the user. */
 177    if (packing->ImageHeight != 0 && packing->ImageHeight != height)
 178       return false;
 179
 180    /* For arrays, use a tall (height * depth) 2D texture. */
 181    pbo_tex_image = create_texture_for_pbo(ctx, create_pbo,
 182                                           GL_PIXEL_UNPACK_BUFFER,
 183                                           width, height * depth,
 184                                           format, type, pixels, packing,
 185                                           &pbo, &pbo_tex);
 186    if (!pbo_tex_image)
 187       return false;
 188
 189    if (allocate_storage)
 190       ctx->Driver.AllocTextureImageBuffer(ctx, tex_image);
 191
 192    /* Only stash the current FBO */
 193    _mesa_meta_begin(ctx, 0);
 194
 195    _mesa_GenFramebuffers(2, fbos);
 196    _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER, fbos[0]);
 197    _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER, fbos[1]);
 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    iters = tex_image->TexObject->Target == GL_TEXTURE_1D_ARRAY ?
 223            height : depth;
 224
 225    for (z = 1; z < iters; z++) {
 226       _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 227                                 pbo_tex_image, z);
 228       _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 229                                 tex_image, zoffset + z);
 230
 231       _mesa_update_state(ctx);
 232
 233       if (tex_image->TexObject->Target == GL_TEXTURE_1D_ARRAY)
 234          _mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
 235                                     0, z, width, z + 1,
 236                                     xoffset, yoffset,
 237                                     xoffset + width, yoffset + 1,
 238                                     GL_COLOR_BUFFER_BIT, GL_NEAREST);
 239       else
 240          _mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
 241                                     0, z * height, width, (z + 1) * height,
 242                                     xoffset, yoffset,
 243                                     xoffset + width, yoffset + height,
 244                                     GL_COLOR_BUFFER_BIT, GL_NEAREST);
 245    }
 246
 247    success = true;
 248
 249 fail:
 250    _mesa_DeleteFramebuffers(2, fbos);
 251    _mesa_DeleteTextures(1, &pbo_tex);
 252    _mesa_DeleteBuffers(1, &pbo);
 253
 254    _mesa_meta_end(ctx);
 255
 256    return success;
 257 }
 258
 259 bool
 260 _mesa_meta_pbo_GetTexSubImage(struct gl_context *ctx, GLuint dims,
 261                               struct gl_texture_image *tex_image,
 262                               int xoffset, int yoffset, int zoffset,
 263                               int width, int height, int depth,
 264                               GLenum format, GLenum type, const void *pixels,
 265                               const struct gl_pixelstore_attrib *packing)
 266 {
 267    GLuint pbo = 0, pbo_tex = 0, fbos[2] = { 0, 0 };
 268    struct gl_texture_image *pbo_tex_image;
 269    GLenum status;
 270    bool success = false;
 271    int z, iters;
 272
 273    /* XXX: This should probably be passed in from somewhere */
 274    const char *where = "_mesa_meta_pbo_GetTexSubImage";
 275
 276    if (!_mesa_is_bufferobj(packing->BufferObj))
 277       return false;
 278
 279    if (format == GL_DEPTH_COMPONENT ||
 280        format == GL_DEPTH_STENCIL ||
 281        format == GL_STENCIL_INDEX ||
 282        format == GL_COLOR_INDEX)
 283       return false;
 284
 285    if (ctx->_ImageTransferState)
 286       return false;
 287
 288    if (!_mesa_validate_pbo_access(dims, packing, width, height, depth,
 289                                   format, type, INT_MAX, pixels)) {
 290       _mesa_error(ctx, GL_INVALID_OPERATION,
 291                   "%s(out of bounds PBO access)", where);
 292       return true;
 293    }
 294
 295    if (_mesa_check_disallowed_mapping(packing->BufferObj)) {
 296       /* buffer is mapped - that's an error */
 297       _mesa_error(ctx, GL_INVALID_OPERATION, "%s(PBO is mapped)", where);
 298       return true;
 299    }
 300
 301    /* Only accept tightly packed pixels from the user. */
 302    if (packing->ImageHeight != 0 && packing->ImageHeight != height)
 303       return false;
 304
 305    /* For arrays, use a tall (height * depth) 2D texture. */
 306    pbo_tex_image = create_texture_for_pbo(ctx, false, GL_PIXEL_PACK_BUFFER,
 307                                           width, height * depth,
 308                                           format, type, pixels, packing,
 309                                           &pbo, &pbo_tex);
 310    if (!pbo_tex_image)
 311       return false;
 312
 313    /* Only stash the current FBO */
 314    _mesa_meta_begin(ctx, 0);
 315
 316    _mesa_GenFramebuffers(2, fbos);
 317
 318    /* If we were given a texture, bind it to the read framebuffer.  If not,
 319     * we're doing a ReadPixels and we should just use whatever framebuffer
 320     * the client has bound.
 321     */
 322    if (tex_image) {
 323       _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER, fbos[0]);
 324       _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 325                                 tex_image, zoffset);
 326       /* If this passes on the first layer it should pass on the others */
 327       status = _mesa_CheckFramebufferStatus(GL_READ_FRAMEBUFFER);
 328       if (status != GL_FRAMEBUFFER_COMPLETE)
 329          goto fail;
 330    } else {
 331       assert(depth == 1);
 332    }
 333
 334    _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER, fbos[1]);
 335    _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 336                              pbo_tex_image, 0);
 337    /* If this passes on the first layer it should pass on the others */
 338    status = _mesa_CheckFramebufferStatus(GL_DRAW_FRAMEBUFFER);
 339    if (status != GL_FRAMEBUFFER_COMPLETE)
 340       goto fail;
 341
 342    _mesa_update_state(ctx);
 343
 344    if (_mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
 345                                   xoffset, yoffset,
 346                                   xoffset + width, yoffset + height,
 347                                   0, 0, width, height,
 348                                   GL_COLOR_BUFFER_BIT, GL_NEAREST))
 349       goto fail;
 350
 351    if (tex_image && tex_image->TexObject->Target == GL_TEXTURE_1D_ARRAY)
 352       iters = height;
 353    else
 354       iters = depth;
 355
 356    for (z = 1; z < iters; z++) {
 357       _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 358                                 tex_image, zoffset + z);
 359       _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 360                                 pbo_tex_image, z);
 361
 362       _mesa_update_state(ctx);
 363
 364       if (tex_image->TexObject->Target == GL_TEXTURE_1D_ARRAY)
 365          _mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
 366                                     xoffset, yoffset,
 367                                     xoffset + width, yoffset + 1,
 368                                     0, z, width, z + 1,
 369                                     GL_COLOR_BUFFER_BIT, GL_NEAREST);
 370       else
 371          _mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
 372                                     xoffset, yoffset,
 373                                     xoffset + width, yoffset + height,
 374                                     0, z * height, width, (z + 1) * height,
 375                                     GL_COLOR_BUFFER_BIT, GL_NEAREST);
 376    }
 377
 378    success = true;
 379
 380 fail:
 381    _mesa_DeleteFramebuffers(2, fbos);
 382    _mesa_DeleteTextures(1, &pbo_tex);
 383    _mesa_DeleteBuffers(1, &pbo);
 384
 385    _mesa_meta_end(ctx);
 386
 387    return success;
 388 }