Check if USE_OPENGL is defined for compiling OpenGL code.

svn-id: r50842

5 files changed, 29 insertions, 6 deletions

diff --git a/backends/graphics/opengl/glerrorcheck.cpp b/backends/graphics/opengl/glerrorcheck.cpp
index b93012b965..b64c8330f5 100644
--- a/backends/graphics/opengl/glerrorcheck.cpp
+++ b/backends/graphics/opengl/glerrorcheck.cpp
@@ -23,7 +23,7 @@
  *
  */
 
-#if defined(DEBUG) //&& defined(USE_OPENGL)
+#if defined(DEBUG) && defined(USE_OPENGL)
 
 #include "backends/graphics/opengl/glerrorcheck.h"
 #include "common/debug.h"
diff --git a/backends/graphics/opengl/gltexture.cpp b/backends/graphics/opengl/gltexture.cpp
index 139222bc36..0a3e607d42 100644
--- a/backends/graphics/opengl/gltexture.cpp
+++ b/backends/graphics/opengl/gltexture.cpp
@@ -23,6 +23,8 @@
  *
  */
 
+#ifdef USE_OPENGL
+
 #include "backends/graphics/opengl/gltexture.h"
 #include "backends/graphics/opengl/glerrorcheck.h"
 
@@ -175,3 +177,5 @@ void GLTexture::drawTexture(GLshort x, GLshort y, GLshort w, GLshort h) {
 	assert(ARRAYSIZE(vertices) == ARRAYSIZE(texcoords));
 	CHECK_GL_ERROR( glDrawArrays(GL_TRIANGLE_STRIP, 0, ARRAYSIZE(vertices) / 2) );
 }
+
+#endif
diff --git a/backends/graphics/opengl/opengl-graphics.cpp b/backends/graphics/opengl/opengl-graphics.cpp
index fc864957d8..f5f0cdeb57 100644
--- a/backends/graphics/opengl/opengl-graphics.cpp
+++ b/backends/graphics/opengl/opengl-graphics.cpp
@@ -23,8 +23,11 @@
  *
  */
 
+#ifdef USE_OPENGL
+
 #include "backends/graphics/opengl/opengl-graphics.h"
 #include "common/mutex.h"
+#include "common/translation.h"
 
 OpenGLGraphicsManager::OpenGLGraphicsManager()
 	:
@@ -41,7 +44,7 @@ OpenGLGraphicsManager::OpenGLGraphicsManager()
 	memset(&_videoMode, 0, sizeof(_videoMode));
 	memset(&_transactionDetails, 0, sizeof(_transactionDetails));
 
-	_videoMode.mode = GFX_NORMAL;
+	_videoMode.mode = OpenGL::GFX_NORMAL;
 	_videoMode.scaleFactor = 1;
 	_videoMode.fullscreen = false;
 }
@@ -91,7 +94,11 @@ bool OpenGLGraphicsManager::getFeatureState(OSystem::Feature f) {
 //
 
 static const OSystem::GraphicsMode s_supportedGraphicsModes[] = {
-	{"1x", "Normal", GFX_NORMAL},
+	{"gl1x", _s("OpenGL Normal (no scaling)"), OpenGL::GFX_NORMAL},
+#ifdef USE_SCALERS
+	{"gl2x", "OpenGL 2x", OpenGL::GFX_DOUBLESIZE},
+	{"gl3x", "OpenGL 3x", OpenGL::GFX_TRIPLESIZE},
+#endif
 	{0, 0, 0}
 };
 
@@ -100,7 +107,7 @@ const OSystem::GraphicsMode *OpenGLGraphicsManager::getSupportedGraphicsModes()
 }
 
 int OpenGLGraphicsManager::getDefaultGraphicsMode() const {
-	return GFX_NORMAL;
+	return OpenGL::GFX_NORMAL;
 }
 
 bool OpenGLGraphicsManager::setGraphicsMode(int mode) {
@@ -108,7 +115,7 @@ bool OpenGLGraphicsManager::setGraphicsMode(int mode) {
 }
 
 int OpenGLGraphicsManager::getGraphicsMode() const {
-	return GFX_NORMAL;
+	return OpenGL::GFX_NORMAL;
 }
 
 #ifdef USE_RGB_COLOR
@@ -496,3 +503,5 @@ void OpenGLGraphicsManager::unloadGFXMode() {
 bool OpenGLGraphicsManager::hotswapGFXMode() {
 	return false;
 }
+
+#endif
diff --git a/backends/graphics/opengl/opengl-graphics.h b/backends/graphics/opengl/opengl-graphics.h
index 17d0b842e9..e0807d8a73 100644
--- a/backends/graphics/opengl/opengl-graphics.h
+++ b/backends/graphics/opengl/opengl-graphics.h
@@ -29,10 +29,16 @@
 #include "backends/graphics/opengl/gltexture.h"
 #include "backends/graphics/graphics.h"
 
+namespace OpenGL {
+
 enum {
-	GFX_NORMAL = 0
+	GFX_NORMAL = 0,
+	GFX_DOUBLESIZE = 1,
+	GFX_TRIPLESIZE = 2
 };
 
+}
+
 /**
  * Open GL graphics manager
  */
diff --git a/backends/graphics/openglsdl/openglsdl-graphics.cpp b/backends/graphics/openglsdl/openglsdl-graphics.cpp
index b12c3af5cd..1b9ef6d663 100644
--- a/backends/graphics/openglsdl/openglsdl-graphics.cpp
+++ b/backends/graphics/openglsdl/openglsdl-graphics.cpp
@@ -23,6 +23,8 @@
  *
  */
 
+#ifdef USE_OPENGL
+
 #include "backends/graphics/openglsdl/openglsdl-graphics.h"
 
 OpenGLSdlGraphicsManager::OpenGLSdlGraphicsManager()
@@ -186,3 +188,5 @@ bool OpenGLSdlGraphicsManager::hotswapGFXMode() {
 void OpenGLSdlGraphicsManager::internUpdateScreen() {
 	
 }
+
+#endif