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[client] main: don't include the swap into the render timings

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If vsync is enabled the swap will block until vblank skewing the timing
metrics.
This commit is contained in:
Geoffrey McRae 2021-08-07 01:44:36 +10:00
parent 0ec66ba210
commit 162b1b93db
4 changed files with 13 additions and 5 deletions
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2
client/include/interface/renderer.h
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@ -114,7 +114,7 @@ typedef bool (* LG_RendererOnFrameFormat)(void * opaque, const LG_Render
typedef bool (* LG_RendererOnFrame )(void * opaque, const FrameBuffer * frame, int dmaFD, const FrameDamageRect * damage, int damageCount);
typedef bool (* LG_RendererRenderStartup)(void * opaque, bool useDMA);
typedef bool (* LG_RendererNeedsRender )(void * opaque);
typedef bool (* LG_RendererRender )(void * opaque, LG_RendererRotate rotate, const bool newFrame, const bool invalidateWindow);
typedef bool (* LG_RendererRender )(void * opaque, LG_RendererRotate rotate, const bool newFrame, const bool invalidateWindow, void (*preSwap)(void * udata), void * udata);
typedef struct LG_Renderer
{

3
client/renderers/EGL/egl.c
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@ -879,7 +879,7 @@ inline static void renderLetterBox(struct Inst * this)
}
static bool egl_render(void * opaque, LG_RendererRotate rotate, const bool newFrame,
const bool invalidateWindow)
const bool invalidateWindow, void (*preSwap)(void * udata), void * udata)
{
struct Inst * this = (struct Inst *)opaque;
EGLint bufferAge = egl_buffer_age(this);
@ -1072,6 +1072,7 @@ static bool egl_render(void * opaque, LG_RendererRotate rotate, const bool newFr
this->hadOverlay = hasOverlay;
this->cursorLast = cursorState;
preSwap(udata);
app_eglSwapBuffers(this->display, this->surface, damage, damageIdx);
return true;
}

3
client/renderers/OpenGL/opengl.c
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@ -463,7 +463,7 @@ static bool opengl_needs_render(void * opaque)
}
bool opengl_render(void * opaque, LG_RendererRotate rotate, const bool newFrame,
const bool invalidateWindow)
const bool invalidateWindow, void (*preSwap)(void * udata), void * udata)
{
struct Inst * this = (struct Inst *)opaque;
if (!this)
@ -503,6 +503,7 @@ bool opengl_render(void * opaque, LG_RendererRotate rotate, const bool newFrame,
ImGui_ImplOpenGL2_RenderDrawData(igGetDrawData());
}
preSwap(udata);
if (this->opt.preventBuffer)
{
app_glSwapBuffers();

10
client/src/main.c
View File

@ -138,6 +138,13 @@ static bool fpsTimerFn(void * unused)
return true;
}
static void preSwapCallback(void * udata)
{
const uint64_t * renderStart = (const uint64_t *)udata;
ringbuffer_push(g_state.renderDuration,
&(float) {(nanotime() - *renderStart) * 1e-6f});
}
static int renderThread(void * unused)
{
if (!g_state.lgr->render_startup(g_state.lgrData, g_state.useDMA))
@ -245,13 +252,12 @@ static int renderThread(void * unused)
const uint64_t renderStart = nanotime();
LG_LOCK(g_state.lgrLock);
if (!g_state.lgr->render(g_state.lgrData, g_params.winRotate, newFrame,
invalidate))
invalidate, preSwapCallback, (void *)&renderStart))
{
LG_UNLOCK(g_state.lgrLock);
break;
}
LG_UNLOCK(g_state.lgrLock);
ringbuffer_push(g_state.renderDuration, &(float) {(nanotime() - renderStart) * 1e-6f});
const uint64_t t = nanotime();
const uint64_t delta = t - g_state.lastRenderTime;