The Tor Browser: content/canvas/src/WebGLExtensionInstancedArrays.cpp@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #include "WebGLContext.h"

     7 #include "WebGLExtensions.h"

     8 #include "mozilla/dom/WebGLRenderingContextBinding.h"

     9 #include "GLContext.h"

    11 using namespace mozilla;

    13 WebGLExtensionInstancedArrays::WebGLExtensionInstancedArrays(WebGLContext* context)

    14   : WebGLExtensionBase(context)

    15 {

    16     MOZ_ASSERT(IsSupported(context), "should not construct WebGLExtensionInstancedArrays: "

    17                                      "ANGLE_instanced_arrays unsupported.");

    18 }

    20 WebGLExtensionInstancedArrays::~WebGLExtensionInstancedArrays()

    21 {

    22 }

    24 void

    25 WebGLExtensionInstancedArrays::DrawArraysInstancedANGLE(GLenum mode, GLint first,

    26                                                         GLsizei count, GLsizei primcount)

    27 {

    28     if (mIsLost)

    29         return mContext->ErrorInvalidOperation("drawArraysInstancedANGLE: Extension is lost.");

    31     mContext->DrawArraysInstanced(mode, first, count, primcount);

    32 }

    34 void

    35 WebGLExtensionInstancedArrays::DrawElementsInstancedANGLE(GLenum mode, GLsizei count,

    36                                                           GLenum type, WebGLintptr offset,

    37                                                           GLsizei primcount)

    38 {

    39     if (mIsLost)

    40         return mContext->ErrorInvalidOperation("drawElementsInstancedANGLE: Extension is lost.");

    42     mContext->DrawElementsInstanced(mode, count, type, offset, primcount);

    43 }

    45 void

    46 WebGLExtensionInstancedArrays::VertexAttribDivisorANGLE(GLuint index, GLuint divisor)

    47 {

    48     if (mIsLost)

    49         return mContext->ErrorInvalidOperation("vertexAttribDivisorANGLE: Extension is lost.");

    51     mContext->VertexAttribDivisor(index, divisor);

    52 }

    54 bool

    55 WebGLExtensionInstancedArrays::IsSupported(const WebGLContext* context)

    56 {

    57     gl::GLContext* gl = context->GL();

    59     return gl->IsSupported(gl::GLFeature::draw_instanced) &&

    60            gl->IsSupported(gl::GLFeature::instanced_arrays);

    61 }

    63 IMPL_WEBGL_EXTENSION_GOOP(WebGLExtensionInstancedArrays)

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