зеркало из https://github.com/mozilla/gecko-dev.git
Bug 765137 - 2/3 - WebGL: clean up IsExtensionSupported - r=jgilbert
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b47f9b8c7b
Коммит
c63c6df954
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@ -842,35 +842,33 @@ WebGLContext::MozGetUnderlyingParamString(PRUint32 pname, nsAString& retval)
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bool WebGLContext::IsExtensionSupported(WebGLExtensionID ei)
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{
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bool isSupported;
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bool isSupported = false;
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switch (ei) {
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case WebGL_OES_standard_derivatives:
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case WebGL_WEBGL_lose_context:
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// We always support these extensions.
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isSupported = true;
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break;
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case WebGL_OES_texture_float:
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isSupported = gl->IsExtensionSupported(gl->IsGLES2() ? GLContext::OES_texture_float
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: GLContext::ARB_texture_float);
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break;
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case WebGL_OES_standard_derivatives:
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// We always support this extension.
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isSupported = true;
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break;
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case WebGL_EXT_texture_filter_anisotropic:
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isSupported = gl->IsExtensionSupported(GLContext::EXT_texture_filter_anisotropic);
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break;
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case WebGL_WEBGL_lose_context:
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// We always support this extension.
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isSupported = true;
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break;
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case WebGL_WEBGL_compressed_texture_s3tc:
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if (gl->IsExtensionSupported(GLContext::EXT_texture_compression_s3tc)) {
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isSupported = true;
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} else {
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isSupported = gl->IsExtensionSupported(GLContext::EXT_texture_compression_dxt1) &&
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gl->IsExtensionSupported(GLContext::ANGLE_texture_compression_dxt3) &&
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gl->IsExtensionSupported(GLContext::ANGLE_texture_compression_dxt5);
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} else if (gl->IsExtensionSupported(GLContext::EXT_texture_compression_dxt1) &&
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gl->IsExtensionSupported(GLContext::ANGLE_texture_compression_dxt3) &&
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gl->IsExtensionSupported(GLContext::ANGLE_texture_compression_dxt5))
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{
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isSupported = true;
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}
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break;
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default:
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isSupported = false;
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MOZ_ASSERT(false, "should not get there.");
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}
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return isSupported;
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