From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <mattatobin@localhost.localdomain>
Date: Fri, 2 Feb 2018 04:16:08 -0500
Subject: Add m-esr52 at 52.6.0

---
 dom/canvas/WebGLExtensionEXTColorBufferFloat.cpp | 51 ++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 dom/canvas/WebGLExtensionEXTColorBufferFloat.cpp

(limited to 'dom/canvas/WebGLExtensionEXTColorBufferFloat.cpp')

diff --git a/dom/canvas/WebGLExtensionEXTColorBufferFloat.cpp b/dom/canvas/WebGLExtensionEXTColorBufferFloat.cpp
new file mode 100644
index 000000000..d5a0c608f
--- /dev/null
+++ b/dom/canvas/WebGLExtensionEXTColorBufferFloat.cpp
@@ -0,0 +1,51 @@
+/* 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/WebGL2RenderingContextBinding.h"
+#include "WebGLContext.h"
+#include "WebGLFormats.h"
+
+namespace mozilla {
+
+WebGLExtensionEXTColorBufferFloat::WebGLExtensionEXTColorBufferFloat(WebGLContext* webgl)
+    : WebGLExtensionBase(webgl)
+{
+    MOZ_ASSERT(IsSupported(webgl), "Don't construct extension if unsupported.");
+
+    auto& fua = webgl->mFormatUsage;
+
+    auto fnUpdateUsage = [&fua](GLenum sizedFormat, webgl::EffectiveFormat effFormat) {
+        auto usage = fua->EditUsage(effFormat);
+        usage->SetRenderable();
+        fua->AllowRBFormat(sizedFormat, usage);
+    };
+
+#define FOO(x) fnUpdateUsage(LOCAL_GL_ ## x, webgl::EffectiveFormat::x)
+
+    FOO(R16F);
+    FOO(RG16F);
+    FOO(RGBA16F);
+
+    FOO(R32F);
+    FOO(RG32F);
+    FOO(RGBA32F);
+
+    FOO(R11F_G11F_B10F);
+
+#undef FOO
+}
+
+/*static*/ bool
+WebGLExtensionEXTColorBufferFloat::IsSupported(const WebGLContext* webgl)
+{
+    const gl::GLContext* gl = webgl->GL();
+    return gl->IsSupported(gl::GLFeature::EXT_color_buffer_float);
+}
+
+IMPL_WEBGL_EXTENSION_GOOP(WebGLExtensionEXTColorBufferFloat, EXT_color_buffer_float)
+
+} // namespace mozilla
-- 
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