1
2/**************************************************************************
3 *
4 * Copyright 2003 VMware, Inc.
5 * All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
17 * of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 *
27 **************************************************************************/
28
29#include "main/bufferobj.h"
30#include "main/macros.h"
31#include "main/mtypes.h"
32#include "main/pbo.h"
33#include "main/texobj.h"
34#include "main/texstore.h"
35#include "main/texcompress.h"
36#include "main/enums.h"
37
38#include "intel_batchbuffer.h"
39#include "intel_context.h"
40#include "intel_tex.h"
41#include "intel_mipmap_tree.h"
42#include "intel_blit.h"
43
44#define FILE_DEBUG_FLAG DEBUG_TEXTURE
45
46static bool
47intel_blit_texsubimage(struct gl_context * ctx,
48		       struct gl_texture_image *texImage,
49		       GLint xoffset, GLint yoffset,
50		       GLint width, GLint height,
51		       GLenum format, GLenum type, const void *pixels,
52		       const struct gl_pixelstore_attrib *packing)
53{
54   struct intel_context *intel = intel_context(ctx);
55   struct intel_texture_image *intelImage = intel_texture_image(texImage);
56
57   /* Try to do a blit upload of the subimage if the texture is
58    * currently busy.
59    */
60   if (!intelImage->mt)
61      return false;
62
63   /* The blitter can't handle Y tiling */
64   if (intelImage->mt->region->tiling == I915_TILING_Y)
65      return false;
66
67   if (texImage->TexObject->Target != GL_TEXTURE_2D)
68      return false;
69
70   if (!drm_intel_bo_busy(intelImage->mt->region->bo))
71      return false;
72
73   DBG("BLT subimage %s target %s level %d offset %d,%d %dx%d\n",
74       __func__,
75       _mesa_enum_to_string(texImage->TexObject->Target),
76       texImage->Level, xoffset, yoffset, width, height);
77
78   pixels = _mesa_validate_pbo_teximage(ctx, 2, width, height, 1,
79					format, type, pixels, packing,
80					"glTexSubImage");
81   if (!pixels)
82      return false;
83
84   struct intel_mipmap_tree *temp_mt =
85      intel_miptree_create(intel, GL_TEXTURE_2D, texImage->TexFormat,
86                           0, 0,
87                           width, height, 1,
88                           false, INTEL_MIPTREE_TILING_NONE);
89   if (!temp_mt)
90      goto err;
91
92   GLubyte *dst = intel_miptree_map_raw(intel, temp_mt);
93   if (!dst)
94      goto err;
95
96   if (!_mesa_texstore(ctx, 2, texImage->_BaseFormat,
97		       texImage->TexFormat,
98		       temp_mt->region->pitch,
99		       &dst,
100		       width, height, 1,
101		       format, type, pixels, packing)) {
102      _mesa_error(ctx, GL_OUT_OF_MEMORY, "intelTexSubImage");
103   }
104
105   intel_miptree_unmap_raw(temp_mt);
106
107   bool ret;
108
109   ret = intel_miptree_blit(intel,
110                            temp_mt, 0, 0,
111                            0, 0, false,
112                            intelImage->mt, texImage->Level, texImage->Face,
113                            xoffset, yoffset, false,
114                            width, height, COLOR_LOGICOP_COPY);
115   assert(ret);
116
117   intel_miptree_release(&temp_mt);
118   _mesa_unmap_teximage_pbo(ctx, packing);
119
120   return ret;
121
122err:
123   _mesa_error(ctx, GL_OUT_OF_MEMORY, "intelTexSubImage");
124   intel_miptree_release(&temp_mt);
125   _mesa_unmap_teximage_pbo(ctx, packing);
126   return false;
127}
128
129static void
130intelTexSubImage(struct gl_context * ctx,
131                 GLuint dims,
132                 struct gl_texture_image *texImage,
133                 GLint xoffset, GLint yoffset, GLint zoffset,
134                 GLsizei width, GLsizei height, GLsizei depth,
135                 GLenum format, GLenum type,
136                 const GLvoid * pixels,
137                 const struct gl_pixelstore_attrib *packing)
138{
139   /* The intel_blit_texsubimage() function only handles 2D images */
140   if (dims != 2 || !intel_blit_texsubimage(ctx, texImage,
141			       xoffset, yoffset,
142			       width, height,
143			       format, type, pixels, packing)) {
144      _mesa_store_texsubimage(ctx, dims, texImage,
145                              xoffset, yoffset, zoffset,
146                              width, height, depth,
147                              format, type, pixels, packing);
148   }
149}
150
151void
152intelInitTextureSubImageFuncs(struct dd_function_table *functions)
153{
154   functions->TexSubImage = intelTexSubImage;
155}
156