зеркало из https://github.com/mozilla/gecko-dev.git
110 строки
3.5 KiB
Plaintext
110 строки
3.5 KiB
Plaintext
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "TextureImageCGL.h"
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#include "GLContext.h"
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#include "gfx2DGlue.h"
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#include "gfxQuartzSurface.h"
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#include "gfxPlatform.h"
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#include "gfxFailure.h"
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namespace mozilla {
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using namespace gfx;
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namespace gl {
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TextureImageCGL::TextureImageCGL(GLuint aTexture,
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const IntSize& aSize,
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GLenum aWrapMode,
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ContentType aContentType,
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GLContext* aContext,
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TextureImage::Flags aFlags)
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: BasicTextureImage(aTexture, aSize, aWrapMode, aContentType,
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aContext, aFlags)
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, mPixelBuffer(0)
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, mBoundPixelBuffer(false)
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{}
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TextureImageCGL::~TextureImageCGL()
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{
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if (mPixelBuffer) {
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mGLContext->MakeCurrent();
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mGLContext->fDeleteBuffers(1, &mPixelBuffer);
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}
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}
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bool
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TextureImageCGL::FinishedSurfaceUpdate()
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{
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if (mBoundPixelBuffer) {
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mGLContext->MakeCurrent();
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mGLContext->fBindBuffer(LOCAL_GL_PIXEL_UNPACK_BUFFER, mPixelBuffer);
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mGLContext->fUnmapBuffer(LOCAL_GL_PIXEL_UNPACK_BUFFER);
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return true;
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}
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return false;
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}
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void
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TextureImageCGL::FinishedSurfaceUpload()
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{
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if (mBoundPixelBuffer) {
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mGLContext->MakeCurrent();
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mGLContext->fBindBuffer(LOCAL_GL_PIXEL_UNPACK_BUFFER, 0);
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mBoundPixelBuffer = false;
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}
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}
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already_AddRefed<TextureImage>
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CreateTextureImageCGL(GLContext* gl,
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const gfx::IntSize& aSize,
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TextureImage::ContentType aContentType,
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GLenum aWrapMode,
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TextureImage::Flags aFlags,
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TextureImage::ImageFormat aImageFormat)
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{
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if (!gl->IsOffscreenSizeAllowed(aSize) &&
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gfxPlatform::OffMainThreadCompositingEnabled()) {
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NS_ASSERTION(aWrapMode == LOCAL_GL_CLAMP_TO_EDGE, "Can't support wrapping with tiles!");
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RefPtr<TextureImage> t = new gl::TiledTextureImage(gl, aSize, aContentType,
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aFlags, aImageFormat);
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return t.forget();
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}
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return CreateBasicTextureImage(gl, aSize, aContentType, aWrapMode,
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aFlags);
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}
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already_AddRefed<TextureImage>
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TileGenFuncCGL(GLContext *gl,
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const IntSize& aSize,
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TextureImage::ContentType aContentType,
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TextureImage::Flags aFlags)
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{
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bool useNearestFilter = aFlags & TextureImage::UseNearestFilter;
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gl->MakeCurrent();
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GLuint texture;
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gl->fGenTextures(1, &texture);
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gl->fActiveTexture(LOCAL_GL_TEXTURE0);
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gl->fBindTexture(LOCAL_GL_TEXTURE_2D, texture);
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GLint texfilter = useNearestFilter ? LOCAL_GL_NEAREST : LOCAL_GL_LINEAR;
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gl->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_MIN_FILTER, texfilter);
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gl->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_MAG_FILTER, texfilter);
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gl->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_WRAP_S, LOCAL_GL_CLAMP_TO_EDGE);
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gl->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_WRAP_T, LOCAL_GL_CLAMP_TO_EDGE);
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RefPtr<TextureImageCGL> teximage
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(new TextureImageCGL(texture, aSize, LOCAL_GL_CLAMP_TO_EDGE, aContentType,
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gl, aFlags));
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return teximage.forget();
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}
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} // namespace gl
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} // namespace mozilla
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