From d6d3e17d53754acedce0b1706e73f929d29b5eb8 Mon Sep 17 00:00:00 2001
From: Johannes Schickel
Date: Sat, 12 Dec 2015 22:08:33 +0100
Subject: OPENGL: Allow runtime specification of OpenGL mode.

Formerly, we required that the OpenGL mode was fixed at compile time. Now we
allow the code to work with whatever it is given at runtime.

It is still possible to force a context type on compile time.
---
 backends/graphics/openglsdl/openglsdl-graphics.cpp | 32 +++++++++++++++-------
 1 file changed, 22 insertions(+), 10 deletions(-)

(limited to 'backends/graphics/openglsdl')

diff --git a/backends/graphics/openglsdl/openglsdl-graphics.cpp b/backends/graphics/openglsdl/openglsdl-graphics.cpp
index 1992925998..a945138578 100644
--- a/backends/graphics/openglsdl/openglsdl-graphics.cpp
+++ b/backends/graphics/openglsdl/openglsdl-graphics.cpp
@@ -210,16 +210,22 @@ Common::List<Graphics::PixelFormat> OpenGLSdlGraphicsManager::getSupportedFormat
 	// RGBA4444
 	formats.push_back(Graphics::PixelFormat(2, 4, 4, 4, 4, 12, 8, 4, 0));
 
-#ifndef USE_GLES
+#if !USE_FORCED_GLES
+#if !USE_FORCED_GL
+	if (isInitialized() && !isGLESContext()) {
+#endif
 #ifdef SCUMM_LITTLE_ENDIAN
-	// RGBA8888
-	formats.push_back(Graphics::PixelFormat(4, 8, 8, 8, 8, 24, 16, 8, 0));
+		// 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));
+		// ABGR8888
+		formats.push_back(Graphics::PixelFormat(4, 8, 8, 8, 8, 0, 8, 16, 24));
+#endif
+		// RGB555, this is used by SCUMM HE 16 bit games.
+		formats.push_back(Graphics::PixelFormat(2, 5, 5, 5, 0, 10, 5, 0, 0));
+#if !USE_FORCED_GL
+	}
 #endif
-	// RGB555, this is used by SCUMM HE 16 bit games.
-	formats.push_back(Graphics::PixelFormat(2, 5, 5, 5, 0, 10, 5, 0, 0));
 #endif
 
 	formats.push_back(Graphics::PixelFormat::createFormatCLUT8());
@@ -391,7 +397,7 @@ bool OpenGLSdlGraphicsManager::setupMode(uint width, uint height) {
 		}
 	}
 
-#ifdef USE_GLES
+#if USE_FORCED_GLES
 	// SDL2 will create a GLES2 context by default, so this is needed for GLES1-profile
 	// functions to work.
 	SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
@@ -403,7 +409,13 @@ bool OpenGLSdlGraphicsManager::setupMode(uint width, uint height) {
 		return false;
 	}
 
-	notifyContextCreate(rgba8888, rgba8888);
+	notifyContextCreate(rgba8888, rgba8888,
+#if USE_FORCED_GLES
+	                    OpenGL::kContextGLES
+#else
+	                    OpenGL::kContextGL
+#endif
+	                   );
 	int actualWidth, actualHeight;
 	getWindowDimensions(&actualWidth, &actualHeight);
 	setActualScreenSize(actualWidth, actualHeight);
@@ -451,7 +463,7 @@ bool OpenGLSdlGraphicsManager::setupMode(uint width, uint height) {
 	_lastVideoModeLoad = SDL_GetTicks();
 
 	if (_hwScreen) {
-		notifyContextCreate(rgba8888, rgba8888);
+		notifyContextCreate(rgba8888, rgba8888, OpenGL::kContextGL);
 		setActualScreenSize(_hwScreen->w, _hwScreen->h);
 		_eventSource->resetKeyboadEmulation(_hwScreen->w - 1, _hwScreen->h - 1);
 	}
-- 
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