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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "WebGLExtensions.h"
#include "GLContext.h"
#include "mozilla/dom/WebGLRenderingContextBinding.h"
#include "WebGLContext.h"
#include "WebGLFormats.h"
namespace mozilla {
WebGLExtensionCompressedTextureS3TC::WebGLExtensionCompressedTextureS3TC(
WebGLContext* webgl)
: WebGLExtensionBase(webgl) {
RefPtr<WebGLContext> webgl_ = webgl; // Bug 1201275
const auto fnAdd = [&webgl_](GLenum sizedFormat,
webgl::EffectiveFormat effFormat) {
auto& fua = webgl_->mFormatUsage;
auto usage = fua->EditUsage(effFormat);
usage->isFilterable = true;
fua->AllowSizedTexFormat(sizedFormat, usage);
};
#define FOO(x) LOCAL_GL_##x, webgl::EffectiveFormat::x
fnAdd(FOO(COMPRESSED_RGB_S3TC_DXT1_EXT));
fnAdd(FOO(COMPRESSED_RGBA_S3TC_DXT1_EXT));
fnAdd(FOO(COMPRESSED_RGBA_S3TC_DXT3_EXT));
fnAdd(FOO(COMPRESSED_RGBA_S3TC_DXT5_EXT));
#undef FOO
}
bool WebGLExtensionCompressedTextureS3TC::IsSupported(
const WebGLContext* webgl) {
gl::GLContext* gl = webgl->GL();
if (gl->IsExtensionSupported(gl::GLContext::EXT_texture_compression_s3tc))
return true;
return gl->IsExtensionSupported(
gl::GLContext::EXT_texture_compression_dxt1) &&
gl->IsExtensionSupported(
gl::GLContext::ANGLE_texture_compression_dxt3) &&
gl->IsExtensionSupported(
gl::GLContext::ANGLE_texture_compression_dxt5);
}
} // namespace mozilla
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