1 /**************************************************************************
3 * Copyright 2003 VMware, Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 #include "main/mtypes.h"
29 #include "main/enums.h"
30 #include "main/image.h"
31 #include "main/teximage.h"
32 #include "main/texstate.h"
33 #include "main/fbobject.h"
35 #include "drivers/common/meta.h"
37 #include "intel_screen.h"
38 #include "intel_context.h"
39 #include "intel_mipmap_tree.h"
40 #include "intel_regions.h"
41 #include "intel_fbo.h"
42 #include "intel_tex.h"
43 #include "intel_blit.h"
45 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
49 intel_copy_texsubimage(struct intel_context
*intel
,
50 struct intel_texture_image
*intelImage
,
51 GLint dstx
, GLint dsty
, GLint slice
,
52 struct intel_renderbuffer
*irb
,
53 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
55 const GLenum internalFormat
= intelImage
->base
.Base
.InternalFormat
;
57 intel_prepare_render(intel
);
59 if (!intelImage
->mt
|| !irb
|| !irb
->mt
) {
60 if (unlikely(INTEL_DEBUG
& DEBUG_PERF
))
61 fprintf(stderr
, "%s fail %p %p (0x%08x)\n",
62 __func__
, intelImage
->mt
, irb
, internalFormat
);
66 /* blit from src buffer to texture */
67 if (!intel_miptree_blit(intel
,
68 irb
->mt
, irb
->mt_level
, irb
->mt_layer
,
69 x
, y
, irb
->Base
.Base
.Name
== 0,
70 intelImage
->mt
, intelImage
->base
.Base
.Level
,
71 intelImage
->base
.Base
.Face
+ slice
,
73 width
, height
, COLOR_LOGICOP_COPY
)) {
82 intelCopyTexSubImage(struct gl_context
*ctx
, GLuint dims
,
83 struct gl_texture_image
*texImage
,
84 GLint xoffset
, GLint yoffset
, GLint slice
,
85 struct gl_renderbuffer
*rb
,
87 GLsizei width
, GLsizei height
)
89 struct intel_context
*intel
= intel_context(ctx
);
91 /* Try the BLT engine. */
92 if (intel_copy_texsubimage(intel
,
93 intel_texture_image(texImage
),
94 xoffset
, yoffset
, slice
,
95 intel_renderbuffer(rb
), x
, y
, width
, height
)) {
99 /* Otherwise, fall back to meta. This will likely be slow. */
100 perf_debug("%s - fallback to swrast\n", __func__
);
101 _mesa_meta_CopyTexSubImage(ctx
, dims
, texImage
,
102 xoffset
, yoffset
, slice
,
103 rb
, x
, y
, width
, height
);
108 intelInitTextureCopyImageFuncs(struct dd_function_table
*functions
)
110 functions
->CopyTexSubImage
= intelCopyTexSubImage
;