OPENGLSDL: Move getSupportedFormats into OpenGLGraphicsManager

2 files changed, 49 insertions, 1 deletions

diff --git a/backends/graphics/opengl/opengl-graphics.cpp b/backends/graphics/opengl/opengl-graphics.cpp
index 6eb961a9d4..c603070751 100644
--- a/backends/graphics/opengl/opengl-graphics.cpp
+++ b/backends/graphics/opengl/opengl-graphics.cpp
@@ -184,6 +184,54 @@ int OpenGLGraphicsManager::getGraphicsMode() const {
 Graphics::PixelFormat OpenGLGraphicsManager::getScreenFormat() const {
 	return _currentState.gameFormat;
 }
+
+Common::List<Graphics::PixelFormat> OpenGLGraphicsManager::getSupportedFormats() const {
+	Common::List<Graphics::PixelFormat> formats;
+
+	// Our default mode is (memory layout wise) RGBA8888 which is a different
+	// logical layout depending on the endianness. We chose this mode because
+	// it is the only 32bit color mode we can safely assume to be present in
+	// OpenGL and OpenGL ES implementations. Thus, we need to supply different
+	// logical formats based on endianness.
+#ifdef SCUMM_LITTLE_ENDIAN
+	// ABGR8888
+	formats.push_back(Graphics::PixelFormat(4, 8, 8, 8, 8, 0, 8, 16, 24));
+#else
+	// RGBA8888
+	formats.push_back(Graphics::PixelFormat(4, 8, 8, 8, 8, 24, 16, 8, 0));
+#endif
+	// RGB565
+	formats.push_back(Graphics::PixelFormat(2, 5, 6, 5, 0, 11, 5, 0, 0));
+	// RGBA5551
+	formats.push_back(Graphics::PixelFormat(2, 5, 5, 5, 1, 11, 6, 1, 0));
+	// RGBA4444
+	formats.push_back(Graphics::PixelFormat(2, 4, 4, 4, 4, 12, 8, 4, 0));
+
+#if !USE_FORCED_GLES && !USE_FORCED_GLES2
+#if !USE_FORCED_GL
+	if (!isGLESContext()) {
+#endif
+#ifdef SCUMM_LITTLE_ENDIAN
+		// RGBA8888
+		formats.push_back(Graphics::PixelFormat(4, 8, 8, 8, 8, 24, 16, 8, 0));
+#else
+		// ABGR8888
+		formats.push_back(Graphics::PixelFormat(4, 8, 8, 8, 8, 0, 8, 16, 24));
+#endif
+#if !USE_FORCED_GL
+	}
+#endif
+#endif
+
+	// RGB555, this is used by SCUMM HE 16 bit games.
+	// This is not natively supported by OpenGL ES implementations, we convert
+	// the pixel format internally.
+	formats.push_back(Graphics::PixelFormat(2, 5, 5, 5, 0, 10, 5, 0, 0));
+
+	formats.push_back(Graphics::PixelFormat::createFormatCLUT8());
+
+	return formats;
+}
 #endif
 
 void OpenGLGraphicsManager::beginGFXTransaction() {
diff --git a/backends/graphics/opengl/opengl-graphics.h b/backends/graphics/opengl/opengl-graphics.h
index df968aa67e..2e1df99534 100644
--- a/backends/graphics/opengl/opengl-graphics.h
+++ b/backends/graphics/opengl/opengl-graphics.h
@@ -72,7 +72,7 @@ public:
 
 #ifdef USE_RGB_COLOR
 	virtual Graphics::PixelFormat getScreenFormat() const override;
-	virtual Common::List<Graphics::PixelFormat> getSupportedFormats() const override = 0;
+	virtual Common::List<Graphics::PixelFormat> getSupportedFormats() const override;
 #endif
 
 	virtual void beginGFXTransaction() override;