本文整理汇总了C++中GrContext::createPlatformRenderTarget方法的典型用法代码示例。如果您正苦于以下问题：C++ GrContext::createPlatformRenderTarget方法的具体用法？C++ GrContext::createPlatformRenderTarget怎么用？C++ GrContext::createPlatformRenderTarget使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类GrContext的用法示例。
在下文中一共展示了GrContext::createPlatformRenderTarget方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: getDeviceForBaseTile
SkDevice* GaneshContext::getDeviceForBaseTile(const TileRenderInfo& renderInfo)
{
// Ganesh should be the only code in the rendering thread that is using GL
// and setting the EGLContext. If this is not the case then we need to
// reset the Ganesh context to prevent rendering issues.
bool contextNeedsReset = false;
if (eglGetCurrentContext() != m_surfaceContext) {
XLOG("Warning: EGLContext has Changed! %p, %p", m_surfaceContext,
eglGetCurrentContext());
contextNeedsReset = true;
}
EGLDisplay display;
if (!m_surfaceContext) {
if(eglGetCurrentContext() != EGL_NO_CONTEXT) {
XLOG("ERROR: should not have a context yet");
}
display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
GLUtils::checkEglError("eglGetDisplay");
EGLint majorVersion;
EGLint minorVersion;
EGLBoolean returnValue = eglInitialize(display, &majorVersion, &minorVersion);
GLUtils::checkEglError("eglInitialize", returnValue);
EGLint numConfigs;
static const EGLint configAttribs[] = {
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
EGL_ALPHA_SIZE, 8,
EGL_STENCIL_SIZE, 8,
EGL_NONE
};
eglChooseConfig(display, configAttribs, &m_surfaceConfig, 1, &numConfigs);
GLUtils::checkEglError("eglChooseConfig");
static const EGLint contextAttribs[] = {
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE
};
m_surfaceContext = eglCreateContext(display, m_surfaceConfig, NULL, contextAttribs);
GLUtils::checkEglError("eglCreateContext");
} else {
display = eglGetCurrentDisplay();
GLUtils::checkEglError("eglGetCurrentDisplay");
}
TransferQueue* tileQueue = TilesManager::instance()->transferQueue();
if (tileQueue->m_eglSurface == EGL_NO_SURFACE) {
const float tileWidth = renderInfo.tileSize.width();
const float tileHeight = renderInfo.tileSize.height();
ANativeWindow* anw = tileQueue->m_ANW.get();
int result = ANativeWindow_setBuffersGeometry(anw, (int)tileWidth,
(int)tileHeight, WINDOW_FORMAT_RGBA_8888);
renderInfo.textureInfo->m_width = tileWidth;
renderInfo.textureInfo->m_height = tileHeight;
tileQueue->m_eglSurface = eglCreateWindowSurface(display, m_surfaceConfig, anw, NULL);
GLUtils::checkEglError("eglCreateWindowSurface");
XLOG("eglCreateWindowSurface");
}
EGLBoolean returnValue = eglMakeCurrent(display, tileQueue->m_eglSurface, tileQueue->m_eglSurface, m_surfaceContext);
GLUtils::checkEglError("eglMakeCurrent", returnValue);
XLOG("eglMakeCurrent");
if (!m_baseTileDeviceSurface) {
GrPlatformRenderTargetDesc renderTargetDesc;
renderTargetDesc.fWidth = TilesManager::tileWidth();
renderTargetDesc.fHeight = TilesManager::tileHeight();
renderTargetDesc.fConfig = kRGBA_8888_PM_GrPixelConfig;
renderTargetDesc.fSampleCnt = 0;
renderTargetDesc.fStencilBits = 8;
renderTargetDesc.fRenderTargetHandle = 0;
GrContext* grContext = getGrContext();
GrRenderTarget* renderTarget = grContext->createPlatformRenderTarget(renderTargetDesc);
m_baseTileDeviceSurface = new SkGpuDevice(grContext, renderTarget);
renderTarget->unref();
XLOG("generated device %p", m_baseTileDeviceSurface);
}
GLUtils::checkGlError("getDeviceForBaseTile");
// We must reset the Ganesh context only after we are sure we have
// re-established our EGLContext as the current context.
if (m_baseTileDeviceSurface && contextNeedsReset)
//.........这里部分代码省略.........