98e75f2d |
1 | /* |
2 | * Mesa 3-D graphics library |
3 | * Version: 6.3 |
4 | * |
5 | * Copyright (C) 1999-2004 Brian Paul 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 "Software"), |
9 | * to deal in the Software without restriction, including without limitation |
10 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
11 | * and/or sell copies of the Software, and to permit persons to whom the |
12 | * Software is furnished to do so, subject to the following conditions: |
13 | * |
14 | * The above copyright notice and this permission notice shall be included |
15 | * in all copies or substantial portions of the Software. |
16 | * |
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
18 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
20 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
21 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
22 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
23 | */ |
24 | |
25 | /* Copyright (C) 2007 Hiroshi Morii <koolsmoky(at)users.sourceforge.net> |
26 | * _mesa_upscale_teximage2d speedup |
27 | */ |
28 | |
29 | #include <assert.h> |
30 | |
31 | #include "types.h" |
32 | #include "internal.h" |
33 | |
34 | |
35 | void |
36 | _mesa_upscale_teximage2d (unsigned int inWidth, unsigned int inHeight, |
37 | unsigned int outWidth, unsigned int outHeight, |
38 | unsigned int comps, |
39 | const byte *src, int srcRowStride, |
40 | byte *dest) |
41 | { |
42 | unsigned int i, j, k; |
43 | |
44 | assert(outWidth >= inWidth); |
45 | assert(outHeight >= inHeight); |
46 | |
47 | #if 1 /* H.Morii - faster loops */ |
48 | for (i = 0; i < inHeight; i++) { |
49 | for (j = 0; j < inWidth; j++) { |
50 | const int aa = (i * outWidth + j) * comps; |
51 | const int bb = i * srcRowStride + j * comps; |
52 | for (k = 0; k < comps; k++) { |
53 | dest[aa + k] = src[bb + k]; |
54 | } |
55 | } |
56 | for (; j < outWidth; j++) { |
57 | const int aa = (i * outWidth + j) * comps; |
58 | const int bb = i * srcRowStride + (j - inWidth) * comps; |
59 | for (k = 0; k < comps; k++) { |
60 | dest[aa + k] = src[bb + k]; |
61 | } |
62 | } |
63 | } |
64 | for (; i < outHeight; i++) { |
65 | for (j = 0; j < inWidth; j++) { |
66 | const int aa = (i * outWidth + j) * comps; |
67 | const int bb = (i - inHeight) * srcRowStride + j * comps; |
68 | for (k = 0; k < comps; k++) { |
69 | dest[aa + k] = src[bb + k]; |
70 | } |
71 | } |
72 | for (; j < outWidth; j++) { |
73 | const int aa = (i * outWidth + j) * comps; |
74 | const int bb = (i - inHeight) * srcRowStride + (j - inWidth) * comps; |
75 | for (k = 0; k < comps; k++) { |
76 | dest[aa + k] = src[bb + k]; |
77 | } |
78 | } |
79 | } |
80 | #else |
81 | for (i = 0; i < outHeight; i++) { |
82 | const int ii = i % inHeight; |
83 | for (j = 0; j < outWidth; j++) { |
84 | const int jj = j % inWidth; |
85 | const int aa = (i * outWidth + j) * comps; |
86 | const int bb = ii * srcRowStride + jj * comps; |
87 | for (k = 0; k < comps; k++) { |
88 | dest[aa + k] = src[bb + k]; |
89 | } |
90 | } |
91 | } |
92 | #endif |
93 | } |