diff options
Diffstat (limited to 'src/client/tile.cpp')
-rw-r--r-- | src/client/tile.cpp | 57 |
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; } |