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Issue 2676153002: Revert of Add compositor support for half-float RGBA buffers and textures (Closed)
Patch Set: Created 3 years, 10 months ago
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1 // Copyright 2013 The Chromium Authors. All rights reserved. 1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "cc/resources/resource_format.h" 5 #include "cc/resources/resource_format.h"
6 6
7 #include "third_party/khronos/GLES2/gl2.h" 7 #include "third_party/khronos/GLES2/gl2.h"
8 #include "third_party/khronos/GLES2/gl2ext.h" 8 #include "third_party/khronos/GLES2/gl2ext.h"
9 #include "ui/gfx/gpu_memory_buffer.h" 9 #include "ui/gfx/gpu_memory_buffer.h"
10 10
11 namespace cc { 11 namespace cc {
12 12
13 int BitsPerPixel(ResourceFormat format) { 13 int BitsPerPixel(ResourceFormat format) {
14 switch (format) { 14 switch (format) {
15 case RGBA_F16:
16 return 64;
17 case BGRA_8888: 15 case BGRA_8888:
18 case RGBA_8888: 16 case RGBA_8888:
19 return 32; 17 return 32;
20 case RGBA_4444: 18 case RGBA_4444:
21 case RGB_565: 19 case RGB_565:
22 case LUMINANCE_F16: 20 case LUMINANCE_F16:
23 return 16; 21 return 16;
24 case ALPHA_8: 22 case ALPHA_8:
25 case LUMINANCE_8: 23 case LUMINANCE_8:
26 case RED_8: 24 case RED_8:
(...skipping 10 matching lines...) Expand all
37 static const GLenum format_gl_data_type[] = { 35 static const GLenum format_gl_data_type[] = {
38 GL_UNSIGNED_BYTE, // RGBA_8888 36 GL_UNSIGNED_BYTE, // RGBA_8888
39 GL_UNSIGNED_SHORT_4_4_4_4, // RGBA_4444 37 GL_UNSIGNED_SHORT_4_4_4_4, // RGBA_4444
40 GL_UNSIGNED_BYTE, // BGRA_8888 38 GL_UNSIGNED_BYTE, // BGRA_8888
41 GL_UNSIGNED_BYTE, // ALPHA_8 39 GL_UNSIGNED_BYTE, // ALPHA_8
42 GL_UNSIGNED_BYTE, // LUMINANCE_8 40 GL_UNSIGNED_BYTE, // LUMINANCE_8
43 GL_UNSIGNED_SHORT_5_6_5, // RGB_565, 41 GL_UNSIGNED_SHORT_5_6_5, // RGB_565,
44 GL_UNSIGNED_BYTE, // ETC1 42 GL_UNSIGNED_BYTE, // ETC1
45 GL_UNSIGNED_BYTE, // RED_8 43 GL_UNSIGNED_BYTE, // RED_8
46 GL_HALF_FLOAT_OES, // LUMINANCE_F16 44 GL_HALF_FLOAT_OES, // LUMINANCE_F16
47 GL_HALF_FLOAT_OES, // RGBA_F16
48 }; 45 };
49 static_assert(arraysize(format_gl_data_type) == (RESOURCE_FORMAT_MAX + 1), 46 static_assert(arraysize(format_gl_data_type) == (RESOURCE_FORMAT_MAX + 1),
50 "format_gl_data_type does not handle all cases."); 47 "format_gl_data_type does not handle all cases.");
51 48
52 return format_gl_data_type[format]; 49 return format_gl_data_type[format];
53 } 50 }
54 51
55 GLenum GLDataFormat(ResourceFormat format) { 52 GLenum GLDataFormat(ResourceFormat format) {
56 DCHECK_LE(format, RESOURCE_FORMAT_MAX); 53 DCHECK_LE(format, RESOURCE_FORMAT_MAX);
57 static const GLenum format_gl_data_format[] = { 54 static const GLenum format_gl_data_format[] = {
58 GL_RGBA, // RGBA_8888 55 GL_RGBA, // RGBA_8888
59 GL_RGBA, // RGBA_4444 56 GL_RGBA, // RGBA_4444
60 GL_BGRA_EXT, // BGRA_8888 57 GL_BGRA_EXT, // BGRA_8888
61 GL_ALPHA, // ALPHA_8 58 GL_ALPHA, // ALPHA_8
62 GL_LUMINANCE, // LUMINANCE_8 59 GL_LUMINANCE, // LUMINANCE_8
63 GL_RGB, // RGB_565 60 GL_RGB, // RGB_565
64 GL_ETC1_RGB8_OES, // ETC1 61 GL_ETC1_RGB8_OES, // ETC1
65 GL_RED_EXT, // RED_8 62 GL_RED_EXT, // RED_8
66 GL_LUMINANCE, // LUMINANCE_F16 63 GL_LUMINANCE, // LUMINANCE_F16
67 GL_RGBA, // RGBA_F16
68 }; 64 };
69 static_assert(arraysize(format_gl_data_format) == (RESOURCE_FORMAT_MAX + 1), 65 static_assert(arraysize(format_gl_data_format) == (RESOURCE_FORMAT_MAX + 1),
70 "format_gl_data_format does not handle all cases."); 66 "format_gl_data_format does not handle all cases.");
71 return format_gl_data_format[format]; 67 return format_gl_data_format[format];
72 } 68 }
73 69
74 GLenum GLInternalFormat(ResourceFormat format) { 70 GLenum GLInternalFormat(ResourceFormat format) {
75 // In GLES2, the internal format must match the texture format. (It no longer 71 // In GLES2, the internal format must match the texture format. (It no longer
76 // is true in GLES3, however it still holds for the BGRA extension.) 72 // is true in GLES3, however it still holds for the BGRA extension.)
77 return GLDataFormat(format); 73 return GLDataFormat(format);
(...skipping 10 matching lines...) Expand all
88 static const GLenum format_gl_data_format[] = { 84 static const GLenum format_gl_data_format[] = {
89 GL_RGBA, // RGBA_8888 85 GL_RGBA, // RGBA_8888
90 GL_RGBA, // RGBA_4444 86 GL_RGBA, // RGBA_4444
91 GL_RGBA, // BGRA_8888 87 GL_RGBA, // BGRA_8888
92 GL_ALPHA, // ALPHA_8 88 GL_ALPHA, // ALPHA_8
93 GL_LUMINANCE, // LUMINANCE_8 89 GL_LUMINANCE, // LUMINANCE_8
94 GL_RGB, // RGB_565 90 GL_RGB, // RGB_565
95 GL_RGB, // ETC1 91 GL_RGB, // ETC1
96 GL_LUMINANCE, // RED_8 92 GL_LUMINANCE, // RED_8
97 GL_LUMINANCE, // LUMINANCE_F16 93 GL_LUMINANCE, // LUMINANCE_F16
98 GL_RGBA, // RGBA_F16
99 }; 94 };
100 static_assert(arraysize(format_gl_data_format) == (RESOURCE_FORMAT_MAX + 1), 95 static_assert(arraysize(format_gl_data_format) == (RESOURCE_FORMAT_MAX + 1),
101 "format_gl_data_format does not handle all cases."); 96 "format_gl_data_format does not handle all cases.");
102 return format_gl_data_format[format]; 97 return format_gl_data_format[format];
103 } 98 }
104 99
105 gfx::BufferFormat BufferFormat(ResourceFormat format) { 100 gfx::BufferFormat BufferFormat(ResourceFormat format) {
106 switch (format) { 101 switch (format) {
107 case BGRA_8888: 102 case BGRA_8888:
108 return gfx::BufferFormat::BGRA_8888; 103 return gfx::BufferFormat::BGRA_8888;
109 case RED_8: 104 case RED_8:
110 return gfx::BufferFormat::R_8; 105 return gfx::BufferFormat::R_8;
111 case RGBA_4444: 106 case RGBA_4444:
112 return gfx::BufferFormat::RGBA_4444; 107 return gfx::BufferFormat::RGBA_4444;
113 case RGBA_8888: 108 case RGBA_8888:
114 return gfx::BufferFormat::RGBA_8888; 109 return gfx::BufferFormat::RGBA_8888;
115 case ETC1: 110 case ETC1:
116 return gfx::BufferFormat::ETC1; 111 return gfx::BufferFormat::ETC1;
117 case ALPHA_8: 112 case ALPHA_8:
118 case LUMINANCE_8: 113 case LUMINANCE_8:
119 case RGB_565: 114 case RGB_565:
120 case LUMINANCE_F16: 115 case LUMINANCE_F16:
121 case RGBA_F16:
122 break; 116 break;
123 } 117 }
124 NOTREACHED(); 118 NOTREACHED();
125 return gfx::BufferFormat::RGBA_8888; 119 return gfx::BufferFormat::RGBA_8888;
126 } 120 }
127 121
128 bool IsResourceFormatCompressed(ResourceFormat format) { 122 bool IsResourceFormatCompressed(ResourceFormat format) {
129 return format == ETC1; 123 return format == ETC1;
130 } 124 }
131 125
132 bool DoesResourceFormatSupportAlpha(ResourceFormat format) { 126 bool DoesResourceFormatSupportAlpha(ResourceFormat format) {
133 switch (format) { 127 switch (format) {
134 case RGBA_4444: 128 case RGBA_4444:
135 case RGBA_8888: 129 case RGBA_8888:
136 case BGRA_8888: 130 case BGRA_8888:
137 case ALPHA_8: 131 case ALPHA_8:
138 case RGBA_F16:
139 return true; 132 return true;
140 case LUMINANCE_8: 133 case LUMINANCE_8:
141 case RGB_565: 134 case RGB_565:
142 case ETC1: 135 case ETC1:
143 case RED_8: 136 case RED_8:
144 case LUMINANCE_F16: 137 case LUMINANCE_F16:
145 return false; 138 return false;
146 } 139 }
147 NOTREACHED(); 140 NOTREACHED();
148 return false; 141 return false;
149 } 142 }
150 143
151 } // namespace cc 144 } // namespace cc
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