Error MainRenderer::render(SceneGraph& scene)
{
ANKI_TRACE_START_EVENT(RENDER);
// First thing, reset the temp mem pool
m_frameAlloc.getMemoryPool().reset();
GrManager& gl = m_r->getGrManager();
CommandBufferInitInfo cinf;
cinf.m_hints = m_cbInitHints;
CommandBufferPtr cmdb = gl.newInstance<CommandBuffer>(cinf);
// Set some of the dynamic state
cmdb->setPolygonOffset(0.0, 0.0);
// Run renderer
RenderingContext ctx(m_frameAlloc);
if(m_rDrawToDefaultFb)
{
ctx.m_outFb = m_defaultFb;
ctx.m_outFbWidth = m_width;
ctx.m_outFbHeight = m_height;
}
ctx.m_commandBuffer = cmdb;
ctx.m_frustumComponent = &scene.getActiveCamera().getComponent<FrustumComponent>();
ANKI_CHECK(m_r->render(ctx));
// Blit renderer's result to default FB if needed
if(!m_rDrawToDefaultFb)
{
cmdb->beginRenderPass(m_defaultFb);
cmdb->setViewport(0, 0, m_width, m_height);
cmdb->bindPipeline(m_blitPpline);
cmdb->bindResourceGroup(m_rcGroup, 0, nullptr);
m_r->drawQuad(cmdb);
cmdb->endRenderPass();
}
// Flush the command buffer
cmdb->flush();
// Set the hints
m_cbInitHints = cmdb->computeInitHints();
ANKI_TRACE_STOP_EVENT(RENDER);
return ErrorCode::NONE;
}
//==============================================================================
Error Fs::buildCommandBuffers(
RenderingContext& ctx, U threadId, U threadCount) const
{
// Get some stuff
VisibilityTestResults& vis =
ctx.m_frustumComponent->getVisibilityTestResults();
U problemSize = vis.getCount(VisibilityGroupType::RENDERABLES_FS);
PtrSize start, end;
ThreadPoolTask::choseStartEnd(
threadId, threadCount, problemSize, start, end);
if(start == end)
{
// Early exit
return ErrorCode::NONE;
}
// Create the command buffer and set some state
CommandBufferInitInfo cinf;
cinf.m_secondLevel = true;
cinf.m_framebuffer = m_fb;
CommandBufferPtr cmdb =
m_r->getGrManager().newInstance<CommandBuffer>(cinf);
ctx.m_fs.m_commandBuffers[threadId] = cmdb;
cmdb->setViewport(0, 0, m_width, m_height);
cmdb->setPolygonOffset(0.0, 0.0);
cmdb->bindResourceGroup(m_globalResources, 1, &ctx.m_is.m_dynBufferInfo);
// Start drawing
Error err = m_r->getSceneDrawer().drawRange(Pass::MS_FS,
*ctx.m_frustumComponent,
cmdb,
vis.getBegin(VisibilityGroupType::RENDERABLES_FS) + start,
vis.getBegin(VisibilityGroupType::RENDERABLES_FS) + end);
return err;
}
ANKI_TEST(Gr, SimpleDrawcall)
{
COMMON_BEGIN()
PipelinePtr ppline = createSimplePpline(VERT_SRC, FRAG_SRC, *gr);
FramebufferPtr fb = createDefaultFb(*gr);
U iterations = 100;
while(iterations--)
{
HighRezTimer timer;
timer.start();
gr->beginFrame();
CommandBufferInitInfo cinit;
CommandBufferPtr cmdb = gr->newInstance<CommandBuffer>(cinit);
cmdb->setViewport(0, 0, WIDTH, HEIGHT);
cmdb->setPolygonOffset(0.0, 0.0);
cmdb->bindPipeline(ppline);
cmdb->beginRenderPass(fb);
cmdb->drawArrays(3);
cmdb->endRenderPass();
cmdb->flush();
gr->swapBuffers();
timer.stop();
const F32 TICK = 1.0 / 30.0;
if(timer.getElapsedTime() < TICK)
{
HighRezTimer::sleep(TICK - timer.getElapsedTime());
}
}
COMMON_END()
}
ANKI_TEST(Gr, DrawWithUniforms)
{
COMMON_BEGIN()
// A non-uploaded buffer
BufferPtr b = gr->newInstance<Buffer>(sizeof(Vec4) * 3, BufferUsageBit::UNIFORM_ALL, BufferMapAccessBit::WRITE);
Vec4* ptr = static_cast<Vec4*>(b->map(0, sizeof(Vec4) * 3, BufferMapAccessBit::WRITE));
ANKI_TEST_EXPECT_NEQ(ptr, nullptr);
ptr[0] = Vec4(1.0, 0.0, 0.0, 0.0);
ptr[1] = Vec4(0.0, 1.0, 0.0, 0.0);
ptr[2] = Vec4(0.0, 0.0, 1.0, 0.0);
b->unmap();
// Resource group
ResourceGroupInitInfo rcinit;
rcinit.m_uniformBuffers[0].m_buffer = b;
rcinit.m_uniformBuffers[0].m_usage = BufferUsageBit::UNIFORM_ALL_GRAPHICS;
rcinit.m_uniformBuffers[1].m_uploadedMemory = true;
rcinit.m_uniformBuffers[1].m_usage = BufferUsageBit::UNIFORM_ALL_GRAPHICS;
ResourceGroupPtr rc = gr->newInstance<ResourceGroup>(rcinit);
// Ppline
PipelinePtr ppline = createSimplePpline(VERT_UBO_SRC, FRAG_UBO_SRC, *gr);
// FB
FramebufferPtr fb = createDefaultFb(*gr);
const U ITERATION_COUNT = 100;
U iterations = ITERATION_COUNT;
while(iterations--)
{
HighRezTimer timer;
timer.start();
gr->beginFrame();
// Uploaded buffer
TransientMemoryInfo transientInfo;
Vec4* rotMat = static_cast<Vec4*>(gr->allocateFrameTransientMemory(
sizeof(Vec4), BufferUsageBit::UNIFORM_ALL, transientInfo.m_uniformBuffers[1]));
F32 angle = toRad(360.0f / ITERATION_COUNT * iterations);
(*rotMat)[0] = cos(angle);
(*rotMat)[1] = -sin(angle);
(*rotMat)[2] = sin(angle);
(*rotMat)[3] = cos(angle);
CommandBufferInitInfo cinit;
CommandBufferPtr cmdb = gr->newInstance<CommandBuffer>(cinit);
cmdb->setViewport(0, 0, WIDTH, HEIGHT);
cmdb->setPolygonOffset(0.0, 0.0);
cmdb->bindPipeline(ppline);
cmdb->beginRenderPass(fb);
cmdb->bindResourceGroup(rc, 0, &transientInfo);
cmdb->drawArrays(3);
cmdb->endRenderPass();
cmdb->flush();
gr->swapBuffers();
timer.stop();
const F32 TICK = 1.0 / 30.0;
if(timer.getElapsedTime() < TICK)
{
HighRezTimer::sleep(TICK - timer.getElapsedTime());
}
}
COMMON_END()
}