CRenderingContext::CRenderingContext(CRenderer* pRenderer, bool bInherit)
{
m_pRenderer = pRenderer;
m_clrRender = ::Color(255, 255, 255, 255);
s_aContexts.push_back();
if (bInherit && s_aContexts.size() > 1)
{
CRenderContext& oLastContext = s_aContexts[s_aContexts.size()-2];
CRenderContext& oThisContext = GetContext();
oThisContext.m_mProjection = oLastContext.m_mProjection;
oThisContext.m_mView = oLastContext.m_mView;
oThisContext.m_mTransformations = oLastContext.m_mTransformations;
oThisContext.m_hMaterial = oLastContext.m_hMaterial;
oThisContext.m_pFrameBuffer = oLastContext.m_pFrameBuffer;
tstrncpy(oThisContext.m_szProgram, PROGRAM_LEN, oLastContext.m_szProgram, PROGRAM_LEN);
oThisContext.m_pShader = oLastContext.m_pShader;
oThisContext.m_rViewport = oLastContext.m_rViewport;
oThisContext.m_eBlend = oLastContext.m_eBlend;
oThisContext.m_flAlpha = oLastContext.m_flAlpha;
oThisContext.m_bDepthMask = oLastContext.m_bDepthMask;
oThisContext.m_bDepthTest = oLastContext.m_bDepthTest;
oThisContext.m_eDepthFunction = oLastContext.m_eDepthFunction;
oThisContext.m_bCull = oLastContext.m_bCull;
oThisContext.m_bWinding = oLastContext.m_bWinding;
m_pShader = oThisContext.m_pShader;
if (m_pShader)
m_iProgram = m_pShader->m_iProgram;
else
m_iProgram = 0;
}
else
{
m_pShader = NULL;
BindTexture(0);
UseMaterial(CMaterialHandle());
UseFrameBuffer(NULL);
UseProgram("");
SetViewport(Rect(0, 0, Application()->GetWindowWidth(), Application()->GetWindowHeight()));
SetBlend(BLEND_NONE);
SetAlpha(1);
SetDepthMask(true);
SetDepthTest(true);
SetDepthFunction(DF_LESS);
SetBackCulling(true);
SetWinding(true);
}
}
CRenderingContext::~CRenderingContext()
{
TAssert(s_aContexts.size());
s_aContexts.pop_back();
if (s_aContexts.size())
{
CRenderContext& oContext = GetContext();
UseMaterial(oContext.m_hMaterial);
UseFrameBuffer(oContext.m_pFrameBuffer);
UseProgram(oContext.m_pShader);
if (*oContext.m_szProgram)
{
oContext.m_bProjectionUpdated = false;
oContext.m_bViewUpdated = false;
oContext.m_bTransformUpdated = false;
}
SetViewport(oContext.m_rViewport);
SetBlend(oContext.m_eBlend);
SetAlpha(oContext.m_flAlpha);
SetDepthMask(oContext.m_bDepthMask);
SetDepthTest(oContext.m_bDepthTest);
SetDepthFunction(oContext.m_eDepthFunction);
SetBackCulling(oContext.m_bCull);
SetWinding(oContext.m_bWinding);
}
else
{
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, 0);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
if (m_pRenderer)
glViewport(0, 0, (GLsizei)m_pRenderer->m_iWidth, (GLsizei)m_pRenderer->m_iHeight);
else
glViewport(0, 0, (GLsizei)Application()->GetWindowWidth(), (GLsizei)Application()->GetWindowHeight());
glUseProgram(0);
glDisablei(GL_BLEND, 0);
glDepthMask(true);
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
glDepthFunc(GL_LESS);
glFrontFace(GL_CCW);
}
}
void RenderPass::RenderBegin(int iFrameBuffer, bool bClear) {
UseFrameBuffer(iFrameBuffer);
RenderBegin(m_pCurFrameBuffer.get(), bClear);
}
