quads.mojom revision 5f1c94371a64b3196d4be9466099bb892df9b88e 
1// Copyright 2014 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5import "mojo/services/public/interfaces/geometry/geometry.mojom"
6import "mojo/services/public/interfaces/surfaces/surface_id.mojom"
7
8module mojo {
9
10struct Color {
11  uint32 rgba;
12};
13
14// TODO(jamesr): Populate subtype fields.
15struct CheckerboardQuadState {};
16
17struct DebugBorderQuadState {};
18
19struct IoSurfaceContentQuadState {};
20
21struct RenderPassQuadState {};
22
23struct SolidColorQuadState {
24  Color color;
25  bool force_anti_aliasing_off;
26};
27
28struct SurfaceQuadState {
29  SurfaceId surface;
30};
31
32struct TextureQuadState {
33  uint32 resource_id;
34  bool premultiplied_alpha;
35  mojo.PointF uv_top_left;
36  mojo.PointF uv_bottom_right;
37  Color background_color;
38  float[4] vertex_opacity;
39  bool flipped;
40};
41
42struct TiledContentQuadState {};
43
44struct StreamVideoQuadState {};
45
46struct YUVVideoQuadState {};
47
48enum Material {
49  CHECKERBOARD = 1,
50  DEBUG_BORDER,
51  IO_SURFACE_CONTENT,
52  PICTURE_CONTENT,
53  RENDER_PASS,
54  SOLID_COLOR,
55  STREAM_VIDEO_CONTENT,
56  SURFACE_CONTENT,
57  TEXTURE_CONTENT,
58  TILED_CONTENT,
59  YUV_VIDEO_CONTENT,
60};
61
62struct Quad {
63  Material material;
64
65  // This rect, after applying the quad_transform(), gives the geometry that
66  // this quad should draw to. This rect lives in content space.
67  mojo.Rect rect;
68
69  // This specifies the region of the quad that is opaque. This rect lives in
70  // content space.
71  mojo.Rect opaque_rect;
72
73  // Allows changing the rect that gets drawn to make it smaller. This value
74  // should be clipped to |rect|. This rect lives in content space.
75  mojo.Rect visible_rect;
76
77  // Allows changing the rect that gets drawn to make it smaller. This value
78  // should be clipped to |rect|. This rect lives in content space.
79  bool needs_blending;
80
81  // Index into the containing pass' shared quad state array which has state
82  // (transforms etc) shared by multiple quads.
83  int32 shared_quad_state_index;
84
85  // Only one of the following will be set, depending on the material.
86  CheckerboardQuadState checkerboard_quad_state;
87  DebugBorderQuadState debug_border_quad_state;
88  IoSurfaceContentQuadState io_surface_quad_state;
89  RenderPassQuadState render_pass_quad_state;
90  SolidColorQuadState solid_color_quad_state;
91  SurfaceQuadState surface_quad_state;
92  TextureQuadState texture_quad_state;
93  TiledContentQuadState tiled_content_quad_state;
94  StreamVideoQuadState stream_video_quad_state;
95  YUVVideoQuadState yuv_video_quad_state;
96};
97
98enum SkXfermode {
99  kClear_Mode = 0,    //!< [0, 0]
100  kSrc_Mode,      //!< [Sa, Sc]
101  kDst_Mode,      //!< [Da, Dc]
102  kSrcOver_Mode,  //!< [Sa + Da - Sa*Da, Rc = Sc + (1 - Sa)*Dc]
103  kDstOver_Mode,  //!< [Sa + Da - Sa*Da, Rc = Dc + (1 - Da)*Sc]
104  kSrcIn_Mode,    //!< [Sa * Da, Sc * Da]
105  kDstIn_Mode,    //!< [Sa * Da, Sa * Dc]
106  kSrcOut_Mode,   //!< [Sa * (1 - Da), Sc * (1 - Da)]
107  kDstOut_Mode,   //!< [Da * (1 - Sa), Dc * (1 - Sa)]
108  kSrcATop_Mode,  //!< [Da, Sc * Da + (1 - Sa) * Dc]
109  kDstATop_Mode,  //!< [Sa, Sa * Dc + Sc * (1 - Da)]
110  kXor_Mode,      //!< [Sa + Da - 2 * Sa * Da, Sc * (1 - Da) + (1 - Sa) * Dc]
111  kPlus_Mode,     //!< [Sa + Da, Sc + Dc]
112  kModulate_Mode, // multiplies all components (= alpha and color)
113
114  // Following blend modes are defined in the CSS Compositing standard:
115  // https://dvcs.w3.org/hg/FXTF/rawfile/tip/compositing/index.html#blending
116  kScreen_Mode,
117  kLastCoeffMode = kScreen_Mode,
118
119  kOverlay_Mode,
120  kDarken_Mode,
121  kLighten_Mode,
122  kColorDodge_Mode,
123  kColorBurn_Mode,
124  kHardLight_Mode,
125  kSoftLight_Mode,
126  kDifference_Mode,
127  kExclusion_Mode,
128  kMultiply_Mode,
129  kLastSeparableMode = kMultiply_Mode,
130
131  kHue_Mode,
132  kSaturation_Mode,
133  kColor_Mode,
134  kLuminosity_Mode,
135  kLastMode = kLuminosity_Mode
136};
137
138struct SharedQuadState {
139  // Transforms from quad's original content space to its target content space.
140  mojo.Transform content_to_target_transform;
141
142  // This size lives in the content space for the quad's originating layer.
143  mojo.Size content_bounds;
144
145  // This rect lives in the content space for the quad's originating layer.
146  mojo.Rect visible_content_rect;
147
148  // This rect lives in the target content space.
149  mojo.Rect clip_rect;
150
151  bool is_clipped;
152  float opacity;
153  SkXfermode blend_mode;
154  int32 sorting_context_id;
155};
156
157struct Pass {
158  int32 id;
159  mojo.Rect output_rect;
160  mojo.Rect damage_rect;
161  mojo.Transform transform_to_root_target;
162  bool has_transparent_background;
163  Quad[] quads;
164  SharedQuadState[] shared_quad_states;
165};
166
167}
168