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Merge pull request #237 from vaguilar/fix-viewport
Fixed viewport error caused by rounding
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commit
d5be332d21
@ -240,14 +240,14 @@ MathUtil::Rectangle<unsigned> RendererOpenGL::GetViewportExtent() {
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MathUtil::Rectangle<unsigned> viewport_extent;
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MathUtil::Rectangle<unsigned> viewport_extent;
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if (window_aspect_ratio > emulation_aspect_ratio) {
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if (window_aspect_ratio > emulation_aspect_ratio) {
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// Window is narrower than the emulation content => apply borders to the top and bottom
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// Window is narrower than the emulation content => apply borders to the top and bottom
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unsigned viewport_height = emulation_aspect_ratio * framebuffer_width;
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unsigned viewport_height = std::round(emulation_aspect_ratio * framebuffer_width);
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viewport_extent.left = 0;
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viewport_extent.left = 0;
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viewport_extent.top = (framebuffer_height - viewport_height) / 2;
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viewport_extent.top = (framebuffer_height - viewport_height) / 2;
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viewport_extent.right = viewport_extent.left + framebuffer_width;
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viewport_extent.right = viewport_extent.left + framebuffer_width;
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viewport_extent.bottom = viewport_extent.top + viewport_height;
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viewport_extent.bottom = viewport_extent.top + viewport_height;
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} else {
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} else {
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// Otherwise, apply borders to the left and right sides of the window.
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// Otherwise, apply borders to the left and right sides of the window.
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unsigned viewport_width = framebuffer_height / emulation_aspect_ratio;
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unsigned viewport_width = std::round(framebuffer_height / emulation_aspect_ratio);
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viewport_extent.left = (framebuffer_width - viewport_width) / 2;
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viewport_extent.left = (framebuffer_width - viewport_width) / 2;
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viewport_extent.top = 0;
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viewport_extent.top = 0;
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viewport_extent.right = viewport_extent.left + viewport_width;
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viewport_extent.right = viewport_extent.left + viewport_width;
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