meta_tex_subimage.c revision 06084652fefe49c3d6bf1b476ff74ff602fdc22a 
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
45static struct gl_texture_image *
46create_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   _mesa_initialize_texture_object(ctx, tex_obj, *tmp_tex, GL_TEXTURE_2D);
104   /* This must be set after _mesa_initialize_texture_object, not before. */
105   tex_obj->Immutable = GL_TRUE;
106   /* This is required for interactions with ARB_texture_view. */
107   tex_obj->NumLayers = 1;
108
109   internal_format = _mesa_get_format_base_format(pbo_format);
110
111   tex_image = _mesa_get_tex_image(ctx, tex_obj, tex_obj->Target, 0);
112   _mesa_init_teximage_fields(ctx, tex_image, width, height, depth,
113                              0, internal_format, pbo_format);
114
115   read_only = pbo_target == GL_PIXEL_UNPACK_BUFFER;
116   if (!ctx->Driver.SetTextureStorageForBufferObject(ctx, tex_obj,
117                                                     buffer_obj,
118                                                     (intptr_t)pixels,
119                                                     row_stride,
120                                                     read_only)) {
121      _mesa_DeleteTextures(1, tmp_tex);
122      _mesa_DeleteBuffers(1, tmp_pbo);
123      return NULL;
124   }
125
126   return tex_image;
127}
128
129bool
130_mesa_meta_pbo_TexSubImage(struct gl_context *ctx, GLuint dims,
131                           struct gl_texture_image *tex_image,
132                           int xoffset, int yoffset, int zoffset,
133                           int width, int height, int depth,
134                           GLenum format, GLenum type, const void *pixels,
135                           bool allocate_storage, bool create_pbo,
136                           const struct gl_pixelstore_attrib *packing)
137{
138   GLuint pbo = 0, pbo_tex = 0, fbos[2] = { 0, 0 };
139   struct gl_texture_image *pbo_tex_image;
140   GLenum status;
141   bool success = false;
142   int z;
143
144   /* XXX: This should probably be passed in from somewhere */
145   const char *where = "_mesa_meta_pbo_TexSubImage";
146
147   if (!_mesa_is_bufferobj(packing->BufferObj) && !create_pbo)
148      return false;
149
150   if (format == GL_DEPTH_COMPONENT ||
151       format == GL_DEPTH_STENCIL ||
152       format == GL_STENCIL_INDEX ||
153       format == GL_COLOR_INDEX)
154      return false;
155
156   if (ctx->_ImageTransferState)
157      return false;
158
159   if (!_mesa_validate_pbo_access(dims, packing, width, height, depth,
160                                  format, type, INT_MAX, pixels)) {
161      _mesa_error(ctx, GL_INVALID_OPERATION,
162                  "%s(out of bounds PBO access)", where);
163      return true;
164   }
165
166   if (_mesa_check_disallowed_mapping(packing->BufferObj)) {
167      /* buffer is mapped - that's an error */
168      _mesa_error(ctx, GL_INVALID_OPERATION, "%s(PBO is mapped)", where);
169      return true;
170   }
171
172   pbo_tex_image = create_texture_for_pbo(ctx, create_pbo,
173                                          GL_PIXEL_UNPACK_BUFFER,
174                                          width, height, depth,
175                                          format, type, pixels, packing,
176                                          &pbo, &pbo_tex);
177   if (!pbo_tex_image)
178      return false;
179
180   if (allocate_storage)
181      ctx->Driver.AllocTextureImageBuffer(ctx, tex_image);
182
183   /* Only stash the current FBO */
184   _mesa_meta_begin(ctx, 0);
185
186   _mesa_GenFramebuffers(2, fbos);
187   _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER, fbos[0]);
188   _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER, fbos[1]);
189
190   if (tex_image->TexObject->Target == GL_TEXTURE_1D_ARRAY) {
191      assert(depth == 1);
192      depth = height;
193      height = 1;
194   }
195
196   _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
197                             pbo_tex_image, 0);
198   /* If this passes on the first layer it should pass on the others */
199   status = _mesa_CheckFramebufferStatus(GL_READ_FRAMEBUFFER);
200   if (status != GL_FRAMEBUFFER_COMPLETE)
201      goto fail;
202
203   _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
204                             tex_image, zoffset);
205   /* If this passes on the first layer it should pass on the others */
206   status = _mesa_CheckFramebufferStatus(GL_DRAW_FRAMEBUFFER);
207   if (status != GL_FRAMEBUFFER_COMPLETE)
208      goto fail;
209
210   _mesa_update_state(ctx);
211
212   if (_mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
213                                  0, 0, width, height,
214                                  xoffset, yoffset,
215                                  xoffset + width, yoffset + height,
216                                  GL_COLOR_BUFFER_BIT, GL_NEAREST))
217      goto fail;
218
219   for (z = 1; z < depth; z++) {
220      _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
221                                pbo_tex_image, z);
222      _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
223                                tex_image, zoffset + z);
224
225      _mesa_update_state(ctx);
226
227      _mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
228                                 0, 0, width, height,
229                                 xoffset, yoffset,
230                                 xoffset + width, yoffset + height,
231                                 GL_COLOR_BUFFER_BIT, GL_NEAREST);
232   }
233
234   success = true;
235
236fail:
237   _mesa_DeleteFramebuffers(2, fbos);
238   _mesa_DeleteTextures(1, &pbo_tex);
239   _mesa_DeleteBuffers(1, &pbo);
240
241   _mesa_meta_end(ctx);
242
243   return success;
244}
245
246bool
247_mesa_meta_pbo_GetTexSubImage(struct gl_context *ctx, GLuint dims,
248                              struct gl_texture_image *tex_image,
249                              int xoffset, int yoffset, int zoffset,
250                              int width, int height, int depth,
251                              GLenum format, GLenum type, const void *pixels,
252                              const struct gl_pixelstore_attrib *packing)
253{
254   GLuint pbo = 0, pbo_tex = 0, fbos[2] = { 0, 0 };
255   struct gl_texture_image *pbo_tex_image;
256   GLenum status;
257   bool success = false;
258   int z;
259
260   /* XXX: This should probably be passed in from somewhere */
261   const char *where = "_mesa_meta_pbo_GetTexSubImage";
262
263   if (!_mesa_is_bufferobj(packing->BufferObj))
264      return false;
265
266   if (format == GL_DEPTH_COMPONENT ||
267       format == GL_DEPTH_STENCIL ||
268       format == GL_STENCIL_INDEX ||
269       format == GL_COLOR_INDEX)
270      return false;
271
272   if (ctx->_ImageTransferState)
273      return false;
274
275   if (!_mesa_validate_pbo_access(dims, packing, width, height, depth,
276                                  format, type, INT_MAX, pixels)) {
277      _mesa_error(ctx, GL_INVALID_OPERATION,
278                  "%s(out of bounds PBO access)", where);
279      return true;
280   }
281
282   if (_mesa_check_disallowed_mapping(packing->BufferObj)) {
283      /* buffer is mapped - that's an error */
284      _mesa_error(ctx, GL_INVALID_OPERATION, "%s(PBO is mapped)", where);
285      return true;
286   }
287
288   pbo_tex_image = create_texture_for_pbo(ctx, false, GL_PIXEL_PACK_BUFFER,
289                                          width, height, depth,
290                                          format, type, pixels, packing,
291                                          &pbo, &pbo_tex);
292   if (!pbo_tex_image)
293      return false;
294
295   /* Only stash the current FBO */
296   _mesa_meta_begin(ctx, 0);
297
298   _mesa_GenFramebuffers(2, fbos);
299
300   if (tex_image && tex_image->TexObject->Target == GL_TEXTURE_1D_ARRAY) {
301      assert(depth == 1);
302      depth = height;
303      height = 1;
304   }
305
306   /* If we were given a texture, bind it to the read framebuffer.  If not,
307    * we're doing a ReadPixels and we should just use whatever framebuffer
308    * the client has bound.
309    */
310   if (tex_image) {
311      _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER, fbos[0]);
312      _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
313                                tex_image, zoffset);
314      /* If this passes on the first layer it should pass on the others */
315      status = _mesa_CheckFramebufferStatus(GL_READ_FRAMEBUFFER);
316      if (status != GL_FRAMEBUFFER_COMPLETE)
317         goto fail;
318   } else {
319      assert(depth == 1);
320   }
321
322   _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER, fbos[1]);
323   _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
324                             pbo_tex_image, 0);
325   /* If this passes on the first layer it should pass on the others */
326   status = _mesa_CheckFramebufferStatus(GL_DRAW_FRAMEBUFFER);
327   if (status != GL_FRAMEBUFFER_COMPLETE)
328      goto fail;
329
330   _mesa_update_state(ctx);
331
332   if (_mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
333                                  xoffset, yoffset,
334                                  xoffset + width, yoffset + height,
335                                  0, 0, width, height,
336                                  GL_COLOR_BUFFER_BIT, GL_NEAREST))
337      goto fail;
338
339   for (z = 1; z < depth; z++) {
340      _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
341                                tex_image, zoffset + z);
342      _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
343                                pbo_tex_image, z);
344
345      _mesa_update_state(ctx);
346
347      _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   }
353
354   success = true;
355
356fail:
357   _mesa_DeleteFramebuffers(2, fbos);
358   _mesa_DeleteTextures(1, &pbo_tex);
359   _mesa_DeleteBuffers(1, &pbo);
360
361   _mesa_meta_end(ctx);
362
363   return success;
364}
365