55 lines
2 KiB
C++
55 lines
2 KiB
C++
// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "common/assert.h"
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#include "video_core/framebuffer_config.h"
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namespace Tegra {
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Common::Rectangle<f32> NormalizeCrop(const FramebufferConfig& framebuffer, u32 texture_width,
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u32 texture_height) {
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f32 left, top, right, bottom;
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if (!framebuffer.crop_rect.IsEmpty()) {
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// If crop rectangle is not empty, apply properties from rectangle.
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left = static_cast<f32>(framebuffer.crop_rect.left);
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top = static_cast<f32>(framebuffer.crop_rect.top);
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right = static_cast<f32>(framebuffer.crop_rect.right);
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bottom = static_cast<f32>(framebuffer.crop_rect.bottom);
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} else {
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// Otherwise, fall back to framebuffer dimensions.
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left = 0;
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top = 0;
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right = static_cast<f32>(framebuffer.width);
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bottom = static_cast<f32>(framebuffer.height);
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}
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// Apply transformation flags.
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auto framebuffer_transform_flags = framebuffer.transform_flags;
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if (True(framebuffer_transform_flags & Service::android::BufferTransformFlags::FlipH)) {
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// Switch left and right.
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std::swap(left, right);
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}
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if (True(framebuffer_transform_flags & Service::android::BufferTransformFlags::FlipV)) {
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// Switch top and bottom.
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std::swap(top, bottom);
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}
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framebuffer_transform_flags &= ~Service::android::BufferTransformFlags::FlipH;
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framebuffer_transform_flags &= ~Service::android::BufferTransformFlags::FlipV;
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if (True(framebuffer_transform_flags)) {
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UNIMPLEMENTED_MSG("Unsupported framebuffer_transform_flags={}",
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static_cast<u32>(framebuffer_transform_flags));
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}
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// Normalize coordinate space.
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left /= static_cast<f32>(texture_width);
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top /= static_cast<f32>(texture_height);
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right /= static_cast<f32>(texture_width);
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bottom /= static_cast<f32>(texture_height);
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return Common::Rectangle<f32>(left, top, right, bottom);
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}
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} // namespace Tegra
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