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video_core: support framebuffer crop rect top not zero

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This commit is contained in:
vonchenplus 2022-08-20 16:58:01 +08:00
parent e9b7263cfd
commit 0a8c5c8622
2 changed files with 25 additions and 12 deletions
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19
src/video_core/renderer_opengl/renderer_opengl.cpp
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@ -478,13 +478,16 @@ void RendererOpenGL::DrawScreen(const Layout::FramebufferLayout& layout) {
}
}
ASSERT_MSG(framebuffer_crop_rect.top == 0, "Unimplemented");
ASSERT_MSG(framebuffer_crop_rect.left == 0, "Unimplemented");
f32 left_start{};
if (framebuffer_crop_rect.Top() > 0) {
left_start = static_cast<f32>(framebuffer_crop_rect.Top()) /
static_cast<f32>(framebuffer_crop_rect.Bottom());
}
f32 scale_u = static_cast<f32>(framebuffer_width) / static_cast<f32>(screen_info.texture.width);
f32 scale_v =
static_cast<f32>(framebuffer_height) / static_cast<f32>(screen_info.texture.height);
// Scale the output by the crop width/height. This is commonly used with 1280x720 rendering
// (e.g. handheld mode) on a 1920x1080 framebuffer.
if (framebuffer_crop_rect.GetWidth() > 0) {
@ -503,10 +506,14 @@ void RendererOpenGL::DrawScreen(const Layout::FramebufferLayout& layout) {
const auto& screen = layout.screen;
const std::array vertices = {
ScreenRectVertex(screen.left, screen.top, texcoords.top * scale_u, left * scale_v),
ScreenRectVertex(screen.right, screen.top, texcoords.bottom * scale_u, left * scale_v),
ScreenRectVertex(screen.left, screen.bottom, texcoords.top * scale_u, right * scale_v),
ScreenRectVertex(screen.right, screen.bottom, texcoords.bottom * scale_u, right * scale_v),
ScreenRectVertex(screen.left, screen.top, texcoords.top * scale_u,
left_start + left * scale_v),
ScreenRectVertex(screen.right, screen.top, texcoords.bottom * scale_u,
left_start + left * scale_v),
ScreenRectVertex(screen.left, screen.bottom, texcoords.top * scale_u,
left_start + right * scale_v),
ScreenRectVertex(screen.right, screen.bottom, texcoords.bottom * scale_u,
left_start + right * scale_v),
};
glNamedBufferSubData(vertex_buffer.handle, 0, sizeof(vertices), std::data(vertices));