Unify OpenGL ES support

8 files changed, 39 insertions, 21 deletions

diff --git a/build/android/jni/Android.mk b/build/android/jni/Android.mk
index ade2bb9c5..17b2606ce 100644
--- a/build/android/jni/Android.mk
+++ b/build/android/jni/Android.mk
@@ -65,6 +65,7 @@ endif
 
 LOCAL_CFLAGS := -D_IRR_ANDROID_PLATFORM_      \
 		-DHAVE_TOUCHSCREENGUI         \
+		-DENABLE_GLES=1               \
 		-DUSE_CURL=1                  \
 		-DUSE_SOUND=1                 \
 		-DUSE_FREETYPE=1              \
diff --git a/src/client/renderingengine.cpp b/src/client/renderingengine.cpp
index 631616c06..6e6509eeb 100644
--- a/src/client/renderingengine.cpp
+++ b/src/client/renderingengine.cpp
@@ -48,7 +48,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 #endif
 
-#ifdef __ANDROID__
+#if ENABLE_GLES
 #include "filesys.h"
 #endif
 
@@ -131,6 +131,11 @@ RenderingEngine::RenderingEngine(IEventReceiver *receiver)
 	params.OGLES2ShaderPath = std::string(porting::path_user + DIR_DELIM + "media" +
 		DIR_DELIM + "Shaders" + DIR_DELIM).c_str();
 	// clang-format on
+#elif ENABLE_GLES
+	// there is no standardized path for these on desktop
+	std::string rel_path = std::string("client") + DIR_DELIM
+			+ "shaders" + DIR_DELIM + "Irrlicht";
+	params.OGLES2ShaderPath = (porting::path_share + DIR_DELIM + rel_path + DIR_DELIM).c_str();
 #endif
 
 	m_device = createDeviceEx(params);
diff --git a/src/client/sky.cpp b/src/client/sky.cpp
index 9d0957450..346cd0642 100644
--- a/src/client/sky.cpp
+++ b/src/client/sky.cpp
@@ -30,6 +30,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "client/renderingengine.h"
 #include "settings.h"
 #include "camera.h"  // CameraModes
+#include "config.h"
 
 
 Sky::Sky(s32 id, ITextureSource *tsrc):
@@ -44,7 +45,7 @@ Sky::Sky(s32 id, ITextureSource *tsrc):
 
 	video::SMaterial mat;
 	mat.Lighting = false;
-#ifdef __ANDROID__
+#if ENABLE_GLES
 	mat.ZBuffer = video::ECFN_DISABLED;
 #else
 	mat.ZBuffer = video::ECFN_NEVER;
@@ -273,7 +274,7 @@ void Sky::render()
 			// Stars are only drawn when brighter than skycolor
 			if (starcolor.getBlue() < m_skycolor.getBlue())
 				break;
-#ifdef __ANDROID__
+#if ENABLE_GLES
 			u16 indices[SKY_STAR_COUNT * 3];
 			video::S3DVertex vertices[SKY_STAR_COUNT * 3];
 			for (u32 i = 0; i < SKY_STAR_COUNT; i++) {
diff --git a/src/client/tile.cpp b/src/client/tile.cpp
index 72f7358b1..82f989d89 100644
--- a/src/client/tile.cpp
+++ b/src/client/tile.cpp
@@ -21,6 +21,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 #include <algorithm>
 #include <ICameraSceneNode.h>
+#include <IrrCompileConfig.h>
 #include "util/string.h"
 #include "util/container.h"
 #include "util/thread.h"
@@ -34,8 +35,12 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "renderingengine.h"
 
 
-#ifdef __ANDROID__
+#if ENABLE_GLES
+#ifdef _IRR_COMPILE_WITH_OGLES1_
 #include <GLES/gl.h>
+#else
+#include <GLES2/gl2.h>
+#endif
 #endif
 
 /*
@@ -595,7 +600,7 @@ u32 TextureSource::generateTexture(const std::string &name)
 	video::ITexture *tex = NULL;
 
 	if (img != NULL) {
-#ifdef __ANDROID__
+#if ENABLE_GLES
 		img = Align2Npot2(img, driver);
 #endif
 		// Create texture from resulting image
@@ -752,7 +757,7 @@ void TextureSource::rebuildImagesAndTextures()
 	// Recreate textures
 	for (TextureInfo &ti : m_textureinfo_cache) {
 		video::IImage *img = generateImage(ti.name);
-#ifdef __ANDROID__
+#if ENABLE_GLES
 		img = Align2Npot2(img, driver);
 #endif
 		// Create texture from resulting image
@@ -989,8 +994,7 @@ video::IImage* TextureSource::generateImage(const std::string &name)
 	return baseimg;
 }
 
-#ifdef __ANDROID__
-#include <GLES/gl.h>
+#if ENABLE_GLES
 /**
  * Check and align image to npot2 if required by hardware
  * @param image image to check for npot2 alignment
@@ -998,7 +1002,7 @@ video::IImage* TextureSource::generateImage(const std::string &name)
  * @return image or copy of image aligned to npot2
  */
 
-inline u16 get_GL_major_version()
+static inline u16 get_GL_major_version()
 {
 	const GLubyte *gl_version = glGetString(GL_VERSION);
 	return (u16) (gl_version[0] - '0');
@@ -1078,7 +1082,7 @@ bool TextureSource::generateImagePart(std::string part_of_name,
 	// Stuff starting with [ are special commands
 	if (part_of_name.empty() || part_of_name[0] != '[') {
 		video::IImage *image = m_sourcecache.getOrLoad(part_of_name);
-#ifdef __ANDROID__
+#if ENABLE_GLES
 		image = Align2Npot2(image, driver);
 #endif
 		if (image == NULL) {
diff --git a/src/client/tile.h b/src/client/tile.h
index d0c45b4a4..3021e119d 100644
--- a/src/client/tile.h
+++ b/src/client/tile.h
@@ -27,8 +27,9 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include <SMaterial.h>
 #include <memory>
 #include "util/numeric.h"
+#include "config.h"
 
-#if __ANDROID__
+#if ENABLE_GLES
 #include <IVideoDriver.h>
 #endif
 
@@ -133,7 +134,7 @@ public:
 
 IWritableTextureSource *createTextureSource();
 
-#ifdef __ANDROID__
+#if ENABLE_GLES
 video::IImage * Align2Npot2(video::IImage * image, irr::video::IVideoDriver* driver);
 #endif
 
diff --git a/src/defaultsettings.cpp b/src/defaultsettings.cpp
index dfaad0c63..4c39a44e1 100644
--- a/src/defaultsettings.cpp
+++ b/src/defaultsettings.cpp
@@ -17,6 +17,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
+#include <IrrCompileConfig.h>
 #include "settings.h"
 #include "porting.h"
 #include "filesys.h"
@@ -182,7 +183,15 @@ void set_default_settings(Settings *settings)
 	settings->setDefault("lighting_boost_spread", "0.2");
 	settings->setDefault("texture_path", "");
 	settings->setDefault("shader_path", "");
+#if ENABLE_GLES
+#ifdef _IRR_COMPILE_WITH_OGLES1_
+	settings->setDefault("video_driver", "ogles1");
+#else
+	settings->setDefault("video_driver", "ogles2");
+#endif
+#else
 	settings->setDefault("video_driver", "opengl");
+#endif
 	settings->setDefault("cinematic", "false");
 	settings->setDefault("camera_smoothing", "0");
 	settings->setDefault("cinematic_camera_smoothing", "0.7");
@@ -217,7 +226,11 @@ void set_default_settings(Settings *settings)
 	settings->setDefault("texture_clean_transparent", "false");
 	settings->setDefault("texture_min_size", "64");
 	settings->setDefault("ambient_occlusion_gamma", "2.2");
+#if ENABLE_GLES
+	settings->setDefault("enable_shaders", "false");
+#else
 	settings->setDefault("enable_shaders", "true");
+#endif
 	settings->setDefault("enable_particles", "true");
 	settings->setDefault("arm_inertia", "true");
 
@@ -429,9 +442,7 @@ void set_default_settings(Settings *settings)
 #ifdef __ANDROID__
 	settings->setDefault("screen_w", "0");
 	settings->setDefault("screen_h", "0");
-	settings->setDefault("enable_shaders", "false");
 	settings->setDefault("fullscreen", "true");
-	settings->setDefault("video_driver", "ogles1");
 	settings->setDefault("touchtarget", "true");
 	settings->setDefault("TMPFolder", porting::getDataPath("tmp" DIR_DELIM));
 	settings->setDefault("touchscreen_threshold","20");
diff --git a/src/gui/guiEngine.cpp b/src/gui/guiEngine.cpp
index f0a8f40eb..241144a2a 100644
--- a/src/gui/guiEngine.cpp
+++ b/src/gui/guiEngine.cpp
@@ -39,9 +39,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "client/guiscalingfilter.h"
 #include "irrlicht_changes/static_text.h"
 
-#ifdef __ANDROID__
+#if ENABLE_GLES
 #include "client/tile.h"
-#include <GLES/gl.h>
 #endif
 
 
@@ -78,7 +77,7 @@ video::ITexture *MenuTextureSource::getTexture(const std::string &name, u32 *id)
 
 	m_to_delete.insert(name);
 
-#ifdef __ANDROID__
+#if ENABLE_GLES
 	video::ITexture *retval = m_driver->findTexture(name.c_str());
 	if (retval)
 		return retval;
diff --git a/src/itemdef.cpp b/src/itemdef.cpp
index 9d6068bab..0d0afeb2b 100644
--- a/src/itemdef.cpp
+++ b/src/itemdef.cpp
@@ -38,10 +38,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include <map>
 #include <set>
 
-#ifdef __ANDROID__
-#include <GLES/gl.h>
-#endif
-
 /*
 	ItemDefinition
 */