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Return back isExtensionSupported() function.

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This commit is contained in:
Sergey Lipskiy 2015-10-08 22:26:09 +06:00
parent 0dfbd34b09
commit d57e28bf53
2 changed files with 28 additions and 2 deletions
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29
src/OpenGL.cpp
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@ -108,6 +108,31 @@ bool isGLError()
return false;
}
bool OGLVideo::isExtensionSupported(const char *extension)
{
GLubyte *where = (GLubyte *)strchr(extension, ' ');
if (where || *extension == '\0')
return false;
const GLubyte *extensions = glGetString(GL_EXTENSIONS);
const GLubyte *start = extensions;
for (;;) {
where = (GLubyte *)strstr((const char *)start, extension);
if (where == NULL)
break;
GLubyte *terminator = where + strlen(extension);
if (where == start || *(where - 1) == ' ')
if (*terminator == ' ' || *terminator == '\0')
return true;
start = terminator;
}
return false;
}
void OGLVideo::start()
{
_start(); // TODO: process initialization error
@ -1203,7 +1228,7 @@ void FBOTextureFormats::init()
depthType = GL_UNSIGNED_INT;
depthFormatBytes = 4;
if (strstr((const char *)glGetString(GL_EXTENSIONS), "GL_OES_rgb8_rgba8") != NULL) {
if (OGLVideo::isExtensionSupported("GL_OES_rgb8_rgba8")) {
colorInternalFormat = GL_RGBA;
colorFormat = GL_RGBA;
colorType = GL_UNSIGNED_BYTE;
@ -1302,7 +1327,7 @@ void OGLRender::_initExtensions()
#endif
LOG(LOG_VERBOSE, "ImageTexture support: %s\n", m_bImageTexture ? "yes" : "no");
if (config.texture.maxAnisotropy != 0 && strstr((const char *)glGetString(GL_EXTENSIONS), "GL_EXT_texture_filter_anisotropic") != NULL) {
if (config.texture.maxAnisotropy != 0 && OGLVideo::isExtensionSupported("GL_EXT_texture_filter_anisotropic")) {
glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &config.texture.maxAnisotropyF);
config.texture.maxAnisotropyF = min(config.texture.maxAnisotropyF, (f32)config.texture.maxAnisotropy);
} else

1
src/OpenGL.h
View File

@ -195,6 +195,7 @@ public:
OGLRender & getRender() {return m_render;}
static OGLVideo & get();
static bool isExtensionSupported(const char * extension);
protected:
OGLVideo() :