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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_RendererOnFrame )(void * opaque, const FrameBuffer * frame, int dmaFD, const FrameDamageRect * damage, int damageCount);
typedef bool (* LG_RendererRenderStartup)(void * opaque, bool useDMA); typedef bool (* LG_RendererRenderStartup)(void * opaque, bool useDMA);
typedef bool (* LG_RendererNeedsRender )(void * opaque); 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 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, 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; struct Inst * this = (struct Inst *)opaque;
EGLint bufferAge = egl_buffer_age(this); 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->hadOverlay = hasOverlay;
this->cursorLast = cursorState; this->cursorLast = cursorState;
preSwap(udata);
app_eglSwapBuffers(this->display, this->surface, damage, damageIdx); app_eglSwapBuffers(this->display, this->surface, damage, damageIdx);
return true; 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, 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; struct Inst * this = (struct Inst *)opaque;
if (!this) if (!this)
@ -503,6 +503,7 @@ bool opengl_render(void * opaque, LG_RendererRotate rotate, const bool newFrame,
ImGui_ImplOpenGL2_RenderDrawData(igGetDrawData()); ImGui_ImplOpenGL2_RenderDrawData(igGetDrawData());
} }
preSwap(udata);
if (this->opt.preventBuffer) if (this->opt.preventBuffer)
{ {
app_glSwapBuffers(); app_glSwapBuffers();

10
client/src/main.c
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@ -138,6 +138,13 @@ static bool fpsTimerFn(void * unused)
return true; 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) static int renderThread(void * unused)
{ {
if (!g_state.lgr->render_startup(g_state.lgrData, g_state.useDMA)) 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(); const uint64_t renderStart = nanotime();
LG_LOCK(g_state.lgrLock); LG_LOCK(g_state.lgrLock);
if (!g_state.lgr->render(g_state.lgrData, g_params.winRotate, newFrame, if (!g_state.lgr->render(g_state.lgrData, g_params.winRotate, newFrame,
invalidate)) invalidate, preSwapCallback, (void *)&renderStart))
{ {
LG_UNLOCK(g_state.lgrLock); LG_UNLOCK(g_state.lgrLock);
break; break;
} }
LG_UNLOCK(g_state.lgrLock); LG_UNLOCK(g_state.lgrLock);
ringbuffer_push(g_state.renderDuration, &(float) {(nanotime() - renderStart) * 1e-6f});
const uint64_t t = nanotime(); const uint64_t t = nanotime();
const uint64_t delta = t - g_state.lastRenderTime; const uint64_t delta = t - g_state.lastRenderTime;