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[all] provide conditional path optimization hints to the compiler

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This commit is contained in:
Geoffrey McRae
2023-11-12 18:26:08 +11:00
parent 7bea919352
commit 929e88b9d3
8 changed files with 117 additions and 94 deletions
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70
client/renderers/EGL/egl.c
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@@ -20,6 +20,7 @@
#include "interface/renderer.h"
#include "common/util.h"
#include "common/debug.h"
#include "common/KVMFR.h"
#include "common/option.h"
@@ -580,7 +581,7 @@ static bool egl_onFrameFormat(LG_Renderer * renderer, const LG_RendererFormat fo
this->formatValid = true;
/* this event runs in a second thread so we need to init it here */
if (!this->frameContext)
if (unlikely(!this->frameContext))
{
static EGLint attrs[] = {
EGL_CONTEXT_CLIENT_VERSION, 2,
@@ -600,7 +601,7 @@ static bool egl_onFrameFormat(LG_Renderer * renderer, const LG_RendererFormat fo
}
}
if (this->scalePointer)
if (likely(this->scalePointer))
{
float scale = max(1.0f, (float)format.screenWidth / this->width);
egl_cursorSetScale(this->cursor, scale);
@@ -623,7 +624,8 @@ static bool egl_onFrame(LG_Renderer * renderer, const FrameBuffer * frame, int d
struct Inst * this = UPCAST(struct Inst, renderer);
uint64_t start = nanotime();
if (!egl_desktopUpdate(this->desktop, frame, dmaFd, damageRects, damageRectsCount))
if (unlikely(!egl_desktopUpdate(
this->desktop, frame, dmaFd, damageRects, damageRectsCount)))
{
DEBUG_INFO("Failed to to update the desktop");
return false;
@@ -632,12 +634,17 @@ static bool egl_onFrame(LG_Renderer * renderer, const FrameBuffer * frame, int d
INTERLOCKED_SECTION(this->desktopDamageLock, {
struct DesktopDamage * damage = this->desktopDamage + this->desktopDamageIdx;
if (damage->count == -1 || damageRectsCount == 0 ||
damage->count + damageRectsCount >= KVMFR_MAX_DAMAGE_RECTS)
if (unlikely(
damage->count == -1 ||
damageRectsCount == 0 ||
damage->count + damageRectsCount >= KVMFR_MAX_DAMAGE_RECTS))
{
damage->count = -1;
}
else
{
memcpy(damage->rects + damage->count, damageRects, damageRectsCount * sizeof(FrameDamageRect));
memcpy(damage->rects + damage->count, damageRects,
damageRectsCount * sizeof(FrameDamageRect));
damage->count += damageRectsCount;
}
});
@@ -1056,14 +1063,14 @@ static bool egl_render(LG_Renderer * renderer, LG_RendererRotate rotate,
accumulated->count = 0;
INTERLOCKED_SECTION(this->desktopDamageLock, {
if (!renderAll)
if (likely(!renderAll))
{
for (int i = 0; i < bufferAge; ++i)
{
struct DesktopDamage * damage = this->desktopDamage +
IDX_AGO(this->desktopDamageIdx, i, DESKTOP_DAMAGE_COUNT);
if (damage->count < 0)
if (unlikely(damage->count < 0))
{
renderAll = true;
break;
@@ -1087,7 +1094,7 @@ static bool egl_render(LG_Renderer * renderer, LG_RendererRotate rotate,
this->desktopDamage[this->desktopDamageIdx].count = 0;
});
if (!renderAll)
if (likely(!renderAll))
{
double matrix[6];
egl_screenToDesktopMatrix(matrix,
@@ -1101,7 +1108,7 @@ static bool egl_render(LG_Renderer * renderer, LG_RendererRotate rotate,
int count = this->overlayHistoryCount[idx];
struct Rect * damage = this->overlayHistory[idx];
if (count < 0)
if (unlikely(count < 0))
{
renderAll = true;
break;
@@ -1114,11 +1121,12 @@ static bool egl_render(LG_Renderer * renderer, LG_RendererRotate rotate,
);
}
accumulated->count = rectsMergeOverlapping(accumulated->rects, accumulated->count);
accumulated->count = rectsMergeOverlapping(accumulated->rects,
accumulated->count);
}
++this->overlayHistoryIdx;
if (this->destRect.w > 0 && this->destRect.h > 0)
if (likely(this->destRect.w > 0 && this->destRect.h > 0))
{
if (egl_desktopRender(this->desktop,
this->destRect.w, this->destRect.h,
@@ -1136,41 +1144,39 @@ static bool egl_render(LG_Renderer * renderer, LG_RendererRotate rotate,
renderLetterBox(this);
hasOverlay |= egl_damageRender(this->damage, rotate, newFrame ? desktopDamage : NULL);
hasOverlay |= invalidateWindow;
hasOverlay |=
egl_damageRender(this->damage, rotate, newFrame ? desktopDamage : NULL) |
invalidateWindow;
struct Rect damage[KVMFR_MAX_DAMAGE_RECTS + MAX_OVERLAY_RECTS + 2];
int damageIdx = app_renderOverlay(damage, MAX_OVERLAY_RECTS);
switch (damageIdx)
if (unlikely(damageIdx != 0))
{
case 0: // no overlay
break;
case -1: // full damage
if (damageIdx == -1)
hasOverlay = true;
// fallthrough
default:
ImGui_ImplOpenGL3_NewFrame();
ImGui_ImplOpenGL3_RenderDrawData(igGetDrawData());
for (int i = 0; i < damageIdx; ++i)
damage[i].y = this->height - damage[i].y - damage[i].h;
ImGui_ImplOpenGL3_NewFrame();
ImGui_ImplOpenGL3_RenderDrawData(igGetDrawData());
for (int i = 0; i < damageIdx; ++i)
damage[i].y = this->height - damage[i].y - damage[i].h;
}
if (damageIdx >= 0 && cursorState.visible)
if (likely(damageIdx >= 0 && cursorState.visible))
damage[damageIdx++] = cursorState.rect;
int overlayHistoryIdx = this->overlayHistoryIdx % DESKTOP_DAMAGE_COUNT;
if (hasOverlay)
if (unlikely(hasOverlay))
this->overlayHistoryCount[overlayHistoryIdx] = -1;
else
{
if (damageIdx > 0)
memcpy(this->overlayHistory[overlayHistoryIdx], damage, damageIdx * sizeof(struct Rect));
if (unlikely(damageIdx > 0))
memcpy(this->overlayHistory[overlayHistoryIdx],
damage, damageIdx * sizeof(struct Rect));
this->overlayHistoryCount[overlayHistoryIdx] = damageIdx;
}
if (!hasOverlay && !this->hadOverlay)
if (unlikely(!hasOverlay && !this->hadOverlay))
{
if (this->cursorLast.visible)
damage[damageIdx++] = this->cursorLast.rect;
@@ -1197,7 +1203,9 @@ static bool egl_render(LG_Renderer * renderer, LG_RendererRotate rotate,
this->cursorLast = cursorState;
preSwap(udata);
app_eglSwapBuffers(this->display, this->surface, damage, this->noSwapDamage ? 0 : damageIdx);
app_eglSwapBuffers(this->display, this->surface, damage,
this->noSwapDamage ? 0 : damageIdx);
return true;
}