97 lines
2.9 KiB
C++
97 lines
2.9 KiB
C++
/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef TNT_FILAMENT_DRIVER_TARGETBUFFERINFO_H
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#define TNT_FILAMENT_DRIVER_TARGETBUFFERINFO_H
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#include <backend/DriverEnums.h>
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#include <backend/Handle.h>
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#include <stdint.h>
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namespace filament {
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namespace backend {
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//! \privatesection
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class TargetBufferInfo {
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public:
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// ctor for 2D textures
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TargetBufferInfo(Handle<HwTexture> h, uint8_t level = 0) noexcept // NOLINT(google-explicit-constructor)
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: handle(h), level(level) { }
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// ctor for cubemaps
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TargetBufferInfo(Handle<HwTexture> h, uint8_t level, TextureCubemapFace face) noexcept
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: handle(h), level(level), face(face) { }
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// ctor for 3D textures
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TargetBufferInfo(Handle<HwTexture> h, uint8_t level, uint16_t layer) noexcept
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: handle(h), level(level), layer(layer) { }
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// texture to be used as render target
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Handle<HwTexture> handle;
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// level to be used
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uint8_t level = 0;
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union {
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// face if texture is a cubemap
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TextureCubemapFace face;
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// for 3D textures
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uint16_t layer = 0;
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};
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TargetBufferInfo() noexcept { }
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};
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class MRT {
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public:
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static constexpr int TARGET_COUNT = 4;
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private:
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TargetBufferInfo mInfos[TARGET_COUNT];
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public:
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TargetBufferInfo operator[](size_t i) const noexcept {
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return mInfos[i];
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}
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MRT() noexcept = default;
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MRT(TargetBufferInfo const& color) noexcept // NOLINT(hicpp-explicit-conversions)
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: mInfos{ color } {
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}
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MRT(TargetBufferInfo const& color0, TargetBufferInfo const& color1) noexcept
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: mInfos{ color0, color1 } {
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}
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MRT(TargetBufferInfo const& color0, TargetBufferInfo const& color1,
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TargetBufferInfo const& color2) noexcept
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: mInfos{ color0, color1, color2 } {
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}
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MRT(TargetBufferInfo const& color0, TargetBufferInfo const& color1,
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TargetBufferInfo const& color2, TargetBufferInfo const& color3) noexcept
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: mInfos{ color0, color1, color2, color3 } {
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}
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// this is here for backward compatibility
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MRT(Handle<HwTexture> h, uint8_t level, uint16_t layer) noexcept
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: mInfos{{ h, level, layer }} {
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}
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};
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} // namespace backend
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} // namespace filament
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#endif //TNT_FILAMENT_DRIVER_TARGETBUFFERINFO_H
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