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Side by Side Diff: src/gpu/GrFontAtlasSizes.h

Issue 1271873002: Break LCD and Bitmap text dependency on hardcoded atlas values (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: tweak names Created 5 years, 4 months ago
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1 1
2 /* 2 /*
3 * Copyright 2015 Google Inc. 3 * Copyright 2015 Google Inc.
4 * 4 *
5 * Use of this source code is governed by a BSD-style license that can be 5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file. 6 * found in the LICENSE file.
7 */ 7 */
8 8
9 #ifndef GrFontAtlasSizes_DEFINED 9 #ifndef GrFontAtlasSizes_DEFINED
10 #define GrFontAtlasSizes_DEFINED 10 #define GrFontAtlasSizes_DEFINED
11 11
12 // For debugging atlas which evict all of the time 12 // For debugging atlas which evict all of the time
13 //#define DEBUG_CONSTANT_EVICT 13 //#define DEBUG_CONSTANT_EVICT
14 #ifdef DEBUG_CONSTANT_EVICT 14 #ifdef DEBUG_CONSTANT_EVICT
15 #define GR_FONT_ATLAS_TEXTURE_WIDTH 256//1024 15 #define GR_FONT_ATLAS_TEXTURE_WIDTH 256//1024
16 #define GR_FONT_ATLAS_A8_TEXTURE_WIDTH 256//2048 16 #define GR_FONT_ATLAS_A8_TEXTURE_WIDTH 256//2048
17 #define GR_FONT_ATLAS_TEXTURE_HEIGHT 256//2048 17 #define GR_FONT_ATLAS_TEXTURE_HEIGHT 256//2048
18 18
19 #define GR_FONT_ATLAS_PLOT_WIDTH 256 19 #define GR_FONT_ATLAS_PLOT_WIDTH 256
20 #define GR_FONT_ATLAS_A8_PLOT_WIDTH 256//512 20 #define GR_FONT_ATLAS_A8_PLOT_WIDTH 256//512
21 #define GR_FONT_ATLAS_PLOT_HEIGHT 256 21 #define GR_FONT_ATLAS_PLOT_HEIGHT 256
22 22
23 #define GR_FONT_ATLAS_NUM_PLOTS_X (GR_FONT_ATLAS_TEXTURE_WIDTH / GR_FONT_ATL AS_PLOT_WIDTH) 23 #define GR_FONT_ATLAS_NUM_PLOTS_X (GR_FONT_ATLAS_TEXTURE_WIDTH / GR_FONT_ATL AS_PLOT_WIDTH)
24 #define GR_FONT_ATLAS_A8_NUM_PLOTS_X (GR_FONT_ATLAS_A8_TEXTURE_WIDTH / GR_FONT_ ATLAS_A8_PLOT_WIDTH) 24 #define GR_FONT_ATLAS_A8_NUM_PLOTS_X (GR_FONT_ATLAS_A8_TEXTURE_WIDTH / GR_FONT_ ATLAS_A8_PLOT_WIDTH)
25 #define GR_FONT_ATLAS_NUM_PLOTS_Y (GR_FONT_ATLAS_TEXTURE_HEIGHT / GR_FONT_AT LAS_PLOT_HEIGHT) 25 #define GR_FONT_ATLAS_NUM_PLOTS_Y (GR_FONT_ATLAS_TEXTURE_HEIGHT / GR_FONT_AT LAS_PLOT_HEIGHT)
26
27 // one over width and height
28 #define GR_FONT_ATLAS_RECIP_WIDTH "0.00390625"//"0.0009765625"
29 #define GR_FONT_ATLAS_A8_RECIP_WIDTH "0.00390625"//"0.00048828125"
30 #define GR_FONT_ATLAS_RECIP_HEIGHT "0.00390625"//"0.00048828125"
31
32 // 1/(3*width)
33 // only used for distance fields, which are A8
34 #define GR_FONT_ATLAS_LCD_DELTA "0.001302083"//"0.000162760417"
35 #else 26 #else
36 #define GR_FONT_ATLAS_TEXTURE_WIDTH 1024 27 #define GR_FONT_ATLAS_TEXTURE_WIDTH 1024
37 #define GR_FONT_ATLAS_A8_TEXTURE_WIDTH 2048 28 #define GR_FONT_ATLAS_A8_TEXTURE_WIDTH 2048
38 #define GR_FONT_ATLAS_TEXTURE_HEIGHT 2048 29 #define GR_FONT_ATLAS_TEXTURE_HEIGHT 2048
39 30
40 #define GR_FONT_ATLAS_PLOT_WIDTH 256 31 #define GR_FONT_ATLAS_PLOT_WIDTH 256
41 #define GR_FONT_ATLAS_A8_PLOT_WIDTH 512 32 #define GR_FONT_ATLAS_A8_PLOT_WIDTH 512
42 #define GR_FONT_ATLAS_PLOT_HEIGHT 256 33 #define GR_FONT_ATLAS_PLOT_HEIGHT 256
43 34
44 #define GR_FONT_ATLAS_NUM_PLOTS_X (GR_FONT_ATLAS_TEXTURE_WIDTH / GR_FONT_ATL AS_PLOT_WIDTH) 35 #define GR_FONT_ATLAS_NUM_PLOTS_X (GR_FONT_ATLAS_TEXTURE_WIDTH / GR_FONT_ATL AS_PLOT_WIDTH)
45 #define GR_FONT_ATLAS_A8_NUM_PLOTS_X (GR_FONT_ATLAS_A8_TEXTURE_WIDTH / GR_FONT_ ATLAS_A8_PLOT_WIDTH) 36 #define GR_FONT_ATLAS_A8_NUM_PLOTS_X (GR_FONT_ATLAS_A8_TEXTURE_WIDTH / GR_FONT_ ATLAS_A8_PLOT_WIDTH)
46 #define GR_FONT_ATLAS_NUM_PLOTS_Y (GR_FONT_ATLAS_TEXTURE_HEIGHT / GR_FONT_AT LAS_PLOT_HEIGHT) 37 #define GR_FONT_ATLAS_NUM_PLOTS_Y (GR_FONT_ATLAS_TEXTURE_HEIGHT / GR_FONT_AT LAS_PLOT_HEIGHT)
47
48 // one over width and height
49 #define GR_FONT_ATLAS_RECIP_WIDTH "0.0009765625"
50 #define GR_FONT_ATLAS_A8_RECIP_WIDTH "0.00048828125"
51 #define GR_FONT_ATLAS_RECIP_HEIGHT "0.00048828125"
52
53 // 1/(3*width)
54 // only used for distance fields, which are A8
55 #define GR_FONT_ATLAS_LCD_DELTA "0.000162760417"
56 #endif 38 #endif
57 #endif 39 #endif
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