1 /**************************************************************************
2 *
3 * Copyright 2003 VMware, Inc.
4 * 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
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:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
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.
25 *
26 **************************************************************************/
27
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"
34
35 #include "drivers/common/meta.h"
36
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"
44
45 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
46
47
48 static bool
intel_copy_texsubimage(struct intel_context * intel,struct intel_texture_image * intelImage,GLint dstx,GLint dsty,GLint slice,struct intel_renderbuffer * irb,GLint x,GLint y,GLsizei width,GLsizei height)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)
54 {
55 const GLenum internalFormat = intelImage->base.Base.InternalFormat;
56
57 intel_prepare_render(intel);
58
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);
63 return false;
64 }
65
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,
72 dstx, dsty, false,
73 width, height, COLOR_LOGICOP_COPY)) {
74 return false;
75 }
76
77 return true;
78 }
79
80
81 static void
intelCopyTexSubImage(struct gl_context * ctx,GLuint dims,struct gl_texture_image * texImage,GLint xoffset,GLint yoffset,GLint slice,struct gl_renderbuffer * rb,GLint x,GLint y,GLsizei width,GLsizei height)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,
86 GLint x, GLint y,
87 GLsizei width, GLsizei height)
88 {
89 struct intel_context *intel = intel_context(ctx);
90
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)) {
96 return;
97 }
98
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);
104 }
105
106
107 void
intelInitTextureCopyImageFuncs(struct dd_function_table * functions)108 intelInitTextureCopyImageFuncs(struct dd_function_table *functions)
109 {
110 functions->CopyTexSubImage = intelCopyTexSubImage;
111 }
112