1 | /**************************************************************************/ |
2 | /* luminance.h */ |
3 | /**************************************************************************/ |
4 | /* This file is part of: */ |
5 | /* GODOT ENGINE */ |
6 | /* https://godotengine.org */ |
7 | /**************************************************************************/ |
8 | /* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */ |
9 | /* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */ |
10 | /* */ |
11 | /* Permission is hereby granted, free of charge, to any person obtaining */ |
12 | /* a copy of this software and associated documentation files (the */ |
13 | /* "Software"), to deal in the Software without restriction, including */ |
14 | /* without limitation the rights to use, copy, modify, merge, publish, */ |
15 | /* distribute, sublicense, and/or sell copies of the Software, and to */ |
16 | /* permit persons to whom the Software is furnished to do so, subject to */ |
17 | /* the following conditions: */ |
18 | /* */ |
19 | /* The above copyright notice and this permission notice shall be */ |
20 | /* included in all copies or substantial portions of the Software. */ |
21 | /* */ |
22 | /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ |
23 | /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ |
24 | /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */ |
25 | /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ |
26 | /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ |
27 | /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ |
28 | /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ |
29 | /**************************************************************************/ |
30 | |
31 | #ifndef LUMINANCE_RD_H |
32 | #define LUMINANCE_RD_H |
33 | |
34 | #include "servers/rendering/renderer_rd/pipeline_cache_rd.h" |
35 | #include "servers/rendering/renderer_rd/shaders/effects/luminance_reduce.glsl.gen.h" |
36 | #include "servers/rendering/renderer_rd/shaders/effects/luminance_reduce_raster.glsl.gen.h" |
37 | #include "servers/rendering/renderer_rd/storage_rd/render_scene_buffers_rd.h" |
38 | #include "servers/rendering/renderer_scene_render.h" |
39 | |
40 | #include "servers/rendering_server.h" |
41 | |
42 | #define RB_LUMINANCE_BUFFERS SNAME("luminance_buffers") |
43 | |
44 | namespace RendererRD { |
45 | |
46 | class Luminance { |
47 | private: |
48 | bool prefer_raster_effects; |
49 | |
50 | enum LuminanceReduceMode { |
51 | LUMINANCE_REDUCE_READ, |
52 | LUMINANCE_REDUCE, |
53 | LUMINANCE_REDUCE_WRITE, |
54 | LUMINANCE_REDUCE_MAX |
55 | }; |
56 | |
57 | struct LuminanceReducePushConstant { |
58 | int32_t source_size[2]; |
59 | float max_luminance; |
60 | float min_luminance; |
61 | float exposure_adjust; |
62 | float pad[3]; |
63 | }; |
64 | |
65 | struct LuminanceReduce { |
66 | LuminanceReduceShaderRD shader; |
67 | RID shader_version; |
68 | RID pipelines[LUMINANCE_REDUCE_MAX]; |
69 | } luminance_reduce; |
70 | |
71 | enum LuminanceReduceRasterMode { |
72 | LUMINANCE_REDUCE_FRAGMENT_FIRST, |
73 | LUMINANCE_REDUCE_FRAGMENT, |
74 | LUMINANCE_REDUCE_FRAGMENT_FINAL, |
75 | LUMINANCE_REDUCE_FRAGMENT_MAX |
76 | }; |
77 | |
78 | struct LuminanceReduceRasterPushConstant { |
79 | int32_t source_size[2]; |
80 | int32_t dest_size[2]; |
81 | float exposure_adjust; |
82 | float min_luminance; |
83 | float max_luminance; |
84 | uint32_t pad1; |
85 | }; |
86 | |
87 | struct LuminanceReduceFragment { |
88 | LuminanceReduceRasterShaderRD shader; |
89 | RID shader_version; |
90 | PipelineCacheRD pipelines[LUMINANCE_REDUCE_FRAGMENT_MAX]; |
91 | } luminance_reduce_raster; |
92 | |
93 | public: |
94 | class LuminanceBuffers : public RenderBufferCustomDataRD { |
95 | GDCLASS(LuminanceBuffers, RenderBufferCustomDataRD); |
96 | |
97 | private: |
98 | bool prefer_raster_effects; |
99 | |
100 | public: |
101 | Vector<RID> reduce; |
102 | RID current; |
103 | |
104 | virtual void configure(RenderSceneBuffersRD *p_render_buffers) override; |
105 | virtual void free_data() override; |
106 | |
107 | void set_prefer_raster_effects(bool p_prefer_raster_effects); |
108 | }; |
109 | |
110 | Ref<LuminanceBuffers> get_luminance_buffers(Ref<RenderSceneBuffersRD> p_render_buffers); |
111 | RID get_current_luminance_buffer(Ref<RenderSceneBuffersRD> p_render_buffers); |
112 | void luminance_reduction(RID p_source_texture, const Size2i p_source_size, Ref<LuminanceBuffers> p_luminance_buffers, float p_min_luminance, float p_max_luminance, float p_adjust, bool p_set = false); |
113 | |
114 | Luminance(bool p_prefer_raster_effects); |
115 | ~Luminance(); |
116 | }; |
117 | |
118 | } // namespace RendererRD |
119 | |
120 | #endif // LUMINANCE_RD_H |
121 | |