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Bug 765137 - 2/3 - WebGL: clean up IsExtensionSupported - r=jgilbert

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This commit is contained in:
Benoit Jacob 2012-06-16 01:12:08 -04:00
parent 75a255c594
commit 884c586b5a
1 changed files with 12 additions and 14 deletions
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24
content/canvas/src/WebGLContext.cpp
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@ -842,35 +842,33 @@ WebGLContext::MozGetUnderlyingParamString(PRUint32 pname, nsAString& retval)
bool WebGLContext::IsExtensionSupported(WebGLExtensionID ei)
{
bool isSupported;
bool isSupported = false;
switch (ei) {
case WebGL_OES_standard_derivatives:
case WebGL_WEBGL_lose_context:
// We always support these extensions.
isSupported = true;
break;
case WebGL_OES_texture_float:
isSupported = gl->IsExtensionSupported(gl->IsGLES2() ? GLContext::OES_texture_float
: GLContext::ARB_texture_float);
break;
case WebGL_OES_standard_derivatives:
// We always support this extension.
isSupported = true;
break;
case WebGL_EXT_texture_filter_anisotropic:
isSupported = gl->IsExtensionSupported(GLContext::EXT_texture_filter_anisotropic);
break;
case WebGL_WEBGL_lose_context:
// We always support this extension.
isSupported = true;
break;
case WebGL_WEBGL_compressed_texture_s3tc:
if (gl->IsExtensionSupported(GLContext::EXT_texture_compression_s3tc)) {
isSupported = true;
} else {
isSupported = gl->IsExtensionSupported(GLContext::EXT_texture_compression_dxt1) &&
} else if (gl->IsExtensionSupported(GLContext::EXT_texture_compression_dxt1) &&
gl->IsExtensionSupported(GLContext::ANGLE_texture_compression_dxt3) &&
gl->IsExtensionSupported(GLContext::ANGLE_texture_compression_dxt5);
gl->IsExtensionSupported(GLContext::ANGLE_texture_compression_dxt5))
{
isSupported = true;
}
break;
default:
isSupported = false;
MOZ_ASSERT(false, "should not get there.");
}
return isSupported;