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authorbunnei <bunneidev@gmail.com>2015-03-08 00:18:40 +0100
committerbunnei <bunneidev@gmail.com>2015-03-08 00:18:40 +0100
commit06bf4715810489548a9a3b5e9274dfc78bc3fc4d (patch)
treea2722e2b7e1356d9cb9725f18f0561fcaf815ec1 /src/common
parentMerge pull request #637 from Subv/etc (diff)
parentSet framebuffer layout from EmuWindow. (diff)
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Diffstat (limited to 'src/common')
-rw-r--r--src/common/emu_window.cpp50
-rw-r--r--src/common/emu_window.h32
2 files changed, 75 insertions, 7 deletions
diff --git a/src/common/emu_window.cpp b/src/common/emu_window.cpp
index 48bb35db5..1082ae26d 100644
--- a/src/common/emu_window.cpp
+++ b/src/common/emu_window.cpp
@@ -3,6 +3,7 @@
// Refer to the license.txt file included.
#include "emu_window.h"
+#include "video_core/video_core.h"
void EmuWindow::KeyPressed(KeyMap::HostDeviceKey key) {
Service::HID::PadState mapped_key = KeyMap::GetPadKey(key);
@@ -15,3 +16,52 @@ void EmuWindow::KeyReleased(KeyMap::HostDeviceKey key) {
Service::HID::PadButtonRelease(mapped_key);
}
+
+EmuWindow::FramebufferLayout EmuWindow::FramebufferLayout::DefaultScreenLayout(int width, int height) {
+ ASSERT(width > 0);
+ ASSERT(height > 0);
+
+ EmuWindow::FramebufferLayout res = { width, height, {}, {} };
+
+ float window_aspect_ratio = static_cast<float>(height) / width;
+ float emulation_aspect_ratio = static_cast<float>(VideoCore::kScreenTopHeight * 2) /
+ VideoCore::kScreenTopWidth;
+
+ if (window_aspect_ratio > emulation_aspect_ratio) {
+ // Window is narrower than the emulation content => apply borders to the top and bottom
+ int viewport_height = static_cast<int>(std::round(emulation_aspect_ratio * width));
+
+ res.top_screen.left = 0;
+ res.top_screen.right = res.top_screen.left + width;
+ res.top_screen.top = (height - viewport_height) / 2;
+ res.top_screen.bottom = res.top_screen.top + viewport_height / 2;
+
+ int bottom_width = static_cast<int>((static_cast<float>(VideoCore::kScreenBottomWidth) /
+ VideoCore::kScreenTopWidth) * (res.top_screen.right - res.top_screen.left));
+ int bottom_border = ((res.top_screen.right - res.top_screen.left) - bottom_width) / 2;
+
+ res.bottom_screen.left = bottom_border;
+ res.bottom_screen.right = res.bottom_screen.left + bottom_width;
+ res.bottom_screen.top = res.top_screen.bottom;
+ res.bottom_screen.bottom = res.bottom_screen.top + viewport_height / 2;
+ } else {
+ // Otherwise, apply borders to the left and right sides of the window.
+ int viewport_width = static_cast<int>(std::round(height / emulation_aspect_ratio));
+
+ res.top_screen.left = (width - viewport_width) / 2;
+ res.top_screen.right = res.top_screen.left + viewport_width;
+ res.top_screen.top = 0;
+ res.top_screen.bottom = res.top_screen.top + height / 2;
+
+ int bottom_width = static_cast<int>((static_cast<float>(VideoCore::kScreenBottomWidth) /
+ VideoCore::kScreenTopWidth) * (res.top_screen.right - res.top_screen.left));
+ int bottom_border = ((res.top_screen.right - res.top_screen.left) - bottom_width) / 2;
+
+ res.bottom_screen.left = res.top_screen.left + bottom_border;
+ res.bottom_screen.right = res.bottom_screen.left + bottom_width;
+ res.bottom_screen.top = res.top_screen.bottom;
+ res.bottom_screen.bottom = res.bottom_screen.top + height / 2;
+ }
+
+ return res;
+}
diff --git a/src/common/emu_window.h b/src/common/emu_window.h
index 1ad4b82a3..b6862030e 100644
--- a/src/common/emu_window.h
+++ b/src/common/emu_window.h
@@ -8,6 +8,7 @@
#include "common/scm_rev.h"
#include "common/string_util.h"
#include "common/key_map.h"
+#include "common/math_util.h"
/**
* Abstraction class used to provide an interface between emulation code and the frontend
@@ -38,6 +39,23 @@ public:
std::pair<unsigned,unsigned> min_client_area_size;
};
+ /// Describes the layout of the window framebuffer (size and top/bottom screen positions)
+ struct FramebufferLayout {
+
+ /**
+ * Factory method for constructing a default FramebufferLayout
+ * @param width Window framebuffer width in pixels
+ * @param height Window framebuffer height in pixels
+ * @return Newly created FramebufferLayout object with default screen regions initialized
+ */
+ static FramebufferLayout DefaultScreenLayout(int width, int height);
+
+ unsigned width;
+ unsigned height;
+ MathUtil::Rectangle<unsigned> top_screen;
+ MathUtil::Rectangle<unsigned> bottom_screen;
+ };
+
/// Swap buffers to display the next frame
virtual void SwapBuffers() = 0;
@@ -75,11 +93,11 @@ public:
}
/**
- * Gets the framebuffer size in pixels.
+ * Gets the framebuffer layout (width, height, and screen regions)
* @note This method is thread-safe
*/
- const std::pair<unsigned,unsigned> GetFramebufferSize() const {
- return framebuffer_size;
+ const FramebufferLayout& GetFramebufferLayout() const {
+ return framebuffer_layout;
}
/**
@@ -118,11 +136,11 @@ protected:
}
/**
- * Update internal framebuffer size with the given parameter.
+ * Update framebuffer layout with the given parameter.
* @note EmuWindow implementations will usually use this in window resize event handlers.
*/
- void NotifyFramebufferSizeChanged(const std::pair<unsigned,unsigned>& size) {
- framebuffer_size = size;
+ void NotifyFramebufferLayoutChanged(const FramebufferLayout& layout) {
+ framebuffer_layout = layout;
}
/**
@@ -143,7 +161,7 @@ private:
// By default, ignore this request and do nothing.
}
- std::pair<unsigned,unsigned> framebuffer_size;
+ FramebufferLayout framebuffer_layout; ///< Current framebuffer layout
unsigned client_area_width; ///< Current client width, should be set by window impl.
unsigned client_area_height; ///< Current client height, should be set by window impl.