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SDL/Qt: Better resizing & fullscreen support

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wheremyfoodat 2025-06-28 20:35:38 +03:00
parent bfeee04d3e
commit 630952f36b
6 changed files with 85 additions and 7 deletions
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32
src/core/renderer_mtl/renderer_mtl.cpp
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@ -103,16 +103,44 @@ void RendererMTL::display() {
renderCommandEncoder->setRenderPipelineState(displayPipeline);
renderCommandEncoder->setFragmentSamplerState(nearestSampler, 0);
if (outputSizeChanged) {
outputSizeChanged = false;
const float srcAspect = 400.0 / 480.0;
const float destAspect = float(outputWindowWidth) / float(outputWindowHeight);
int destX = 0, destY = 0, destWidth = outputWindowWidth, destHeight = outputWindowHeight;
if (destAspect > srcAspect) {
// Window is wider than source
destWidth = int(outputWindowHeight * srcAspect + 0.5f);
destX = (outputWindowWidth - destWidth) / 2;
} else {
// Window is taller than source
destHeight = int(outputWindowWidth / srcAspect + 0.5f);
destY = (outputWindowHeight - destHeight) / 2;
}
blitInfo.scale = float(destWidth) / 400.0f;
blitInfo.topScreenX = float(destX);
blitInfo.topScreenY = float(destY + (destHeight - int(480 * blitInfo.scale)) / 2);
blitInfo.bottomScreenX = float(destX) + 40 * blitInfo.scale;
blitInfo.bottomScreenY = blitInfo.topScreenY + 240 * blitInfo.scale;
}
// Top screen
if (topScreen) {
renderCommandEncoder->setViewport(MTL::Viewport{0, 0, 400, 240, 0.0f, 1.0f});
renderCommandEncoder->setViewport(
MTL::Viewport{blitInfo.topScreenX, blitInfo.topScreenY + 240 * blitInfo.scale, 400 * blitInfo.scale, 240 * blitInfo.scale, 0.0f, 1.0f}
);
renderCommandEncoder->setFragmentTexture(topScreen->get().texture, 0);
renderCommandEncoder->drawPrimitives(MTL::PrimitiveTypeTriangleStrip, NS::UInteger(0), NS::UInteger(4));
}
// Bottom screen
if (bottomScreen) {
renderCommandEncoder->setViewport(MTL::Viewport{40, 240, 320, 240, 0.0f, 1.0f});
renderCommandEncoder->setViewport(
MTL::Viewport{blitInfo.bottomScreenX, blitInfo.bottomScreenY, 320 * blitInfo.scale, 240 * blitInfo.scale, 0.0f, 1.0f}
);
renderCommandEncoder->setFragmentTexture(bottomScreen->get().texture, 0);
renderCommandEncoder->drawPrimitives(MTL::PrimitiveTypeTriangleStrip, NS::UInteger(0), NS::UInteger(4));
}