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-rw-r--r--src/client/tile.cpp57
1 files changed, 30 insertions, 27 deletions
diff --git a/src/client/tile.cpp b/src/client/tile.cpp
index 82f989d89..009237c51 100644
--- a/src/client/tile.cpp
+++ b/src/client/tile.cpp
@@ -995,12 +995,7 @@ video::IImage* TextureSource::generateImage(const std::string &name)
}
#if ENABLE_GLES
-/**
- * Check and align image to npot2 if required by hardware
- * @param image image to check for npot2 alignment
- * @param driver driver to use for image operations
- * @return image or copy of image aligned to npot2
- */
+
static inline u16 get_GL_major_version()
{
@@ -1008,47 +1003,55 @@ static inline u16 get_GL_major_version()
return (u16) (gl_version[0] - '0');
}
-video::IImage * Align2Npot2(video::IImage * image,
- video::IVideoDriver* driver)
-{
- if (image == NULL) {
- return image;
- }
-
- core::dimension2d<u32> dim = image->getDimension();
+/**
+ * Check if hardware requires npot2 aligned textures
+ * @return true if alignment NOT(!) requires, false otherwise
+ */
+bool hasNPotSupport()
+{
// Only GLES2 is trusted to correctly report npot support
- // Note: we cache the boolean result. GL context will never change on Android.
- static const bool hasNPotSupport = get_GL_major_version() > 1 &&
+ // Note: we cache the boolean result, the GL context will never change.
+ static const bool supported = get_GL_major_version() > 1 &&
glGetString(GL_EXTENSIONS) &&
strstr((char *)glGetString(GL_EXTENSIONS), "GL_OES_texture_npot");
+ return supported;
+}
- if (hasNPotSupport)
+/**
+ * Check and align image to npot2 if required by hardware
+ * @param image image to check for npot2 alignment
+ * @param driver driver to use for image operations
+ * @return image or copy of image aligned to npot2
+ */
+
+video::IImage * Align2Npot2(video::IImage * image,
+ video::IVideoDriver* driver)
+{
+ if (image == NULL)
+ return image;
+
+ if (hasNPotSupport())
return image;
+ core::dimension2d<u32> dim = image->getDimension();
unsigned int height = npot2(dim.Height);
unsigned int width = npot2(dim.Width);
- if ((dim.Height == height) &&
- (dim.Width == width)) {
+ if (dim.Height == height && dim.Width == width)
return image;
- }
- if (dim.Height > height) {
+ if (dim.Height > height)
height *= 2;
- }
-
- if (dim.Width > width) {
+ if (dim.Width > width)
width *= 2;
- }
video::IImage *targetimage =
driver->createImage(video::ECF_A8R8G8B8,
core::dimension2d<u32>(width, height));
- if (targetimage != NULL) {
+ if (targetimage != NULL)
image->copyToScaling(targetimage);
- }
image->drop();
return targetimage;
}