Initial commit

backends/platform/libretro/include/libretro-graphics-opengl.h

@@ -0,0 +1,57 @@
+/* Copyright (C) 2024 Giovanni Cascione <ing.cascione@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef BACKENDS_LIBRETRO_GRAPHICS_OPENGL_H
+#define BACKENDS_LIBRETRO_GRAPHICS_OPENGL_H
+
+#include "backends/graphics/opengl/opengl-graphics.h"
+#include "backends/graphics/opengl/texture.h"
+
+namespace OpenGL {
+class Surface;
+}
+
+class LibretroOpenGLGraphics : public OpenGL::OpenGLGraphicsManager {
+public:
+	LibretroOpenGLGraphics(OpenGL::ContextType contextType);
+	bool loadVideoMode(uint requestedWidth, uint requestedHeight, bool resizable, int antialiasing) override {
+		return true;
+	}
+	void refreshScreen() override;
+	void setSystemMousePosition(const int x, const int y) override {};
+	void setMouseCursor(const void *buf, uint w, uint h, int hotspotX, int hotspotY, uint32 keycolor, bool dontScale, const Graphics::PixelFormat *format, const byte *mask) override;
+	void initSize(uint width, uint height, const Graphics::PixelFormat *format) override;
+	void setMousePosition(int x, int y);
+	void resetContext(OpenGL::ContextType contextType);
+	OSystem::TransactionError endGFXTransaction() override;
+	bool hasFeature(OSystem::Feature f) const override;
+protected:
+	bool gameNeedsAspectRatioCorrection() const override {
+		return false;
+	}
+	void handleResizeImpl(const int width, const int height) override;
+private:
+	void overrideCursorScaling(void);
+};
+
+class LibretroHWFramebuffer : public OpenGL::Backbuffer {
+
+protected:
+	void activateInternal() override;
+};
+
+#endif //BACKENDS_LIBRETRO_GRAPHICS_OPENGL_H