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[client] egl: make native HDR encoding-safe

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Request true floating-point EGL configs for scRGB and expose the native
encodings supported by the selected surface. Fall back to software HDR
mapping when the surface cannot represent the incoming wire format.

Resample PQ in linear light, keep SDR-only effects out of native PQ
chains, and consume the cursor-specific white level without changing
binary monochrome cursor mask operations.
This commit is contained in:
Geoffrey McRae
2026-07-19 04:42:30 +10:00
parent 20225f05d1
commit 70b795c5ba
10 changed files with 160 additions and 42 deletions
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22
client/renderers/EGL/postprocess.c
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@@ -62,6 +62,7 @@ struct EGL_PostProcess
int desktopWidth, desktopHeight;
unsigned int targetX, targetY;
bool useDMA;
bool hdrPQ;
unsigned int outputX, outputY;
bool fullFrame;
}
@@ -705,7 +706,7 @@ bool egl_postProcessNeedsFullFrame(EGL_PostProcess * this)
static bool configMatches(EGL_PostProcess * this, EGL_PixelFormat pixFmt,
unsigned int inputX, unsigned int inputY,
int desktopWidth, int desktopHeight,
unsigned int targetX, unsigned int targetY, bool useDMA)
unsigned int targetX, unsigned int targetY, bool useDMA, bool hdrPQ)
{
return
this->config.valid &&
@@ -716,13 +717,14 @@ static bool configMatches(EGL_PostProcess * this, EGL_PixelFormat pixFmt,
this->config.desktopHeight == desktopHeight &&
this->config.targetX == targetX &&
this->config.targetY == targetY &&
this->config.useDMA == useDMA;
this->config.useDMA == useDMA &&
this->config.hdrPQ == hdrPQ;
}
static bool configureChain(EGL_PostProcess * this, EGL_PixelFormat pixFmt,
unsigned int inputX, unsigned int inputY,
int desktopWidth, int desktopHeight,
unsigned int targetX, unsigned int targetY, bool useDMA)
unsigned int targetX, unsigned int targetY, bool useDMA, bool hdrPQ)
{
this->config.valid = false;
vector_clear(&this->activeFilters);
@@ -744,6 +746,13 @@ static bool configureChain(EGL_PostProcess * this, EGL_PixelFormat pixFmt,
for(const Vector ** filters = lists; *filters; ++filters)
vector_forEach(filter, *filters)
{
// These filters operate on their input signal directly. PQ must be
// decoded to linear light before resampling or enhancement, and none of
// the current external filters declares such support. Keep only the
// mandatory format-conversion filters in a PQ chain.
if (hdrPQ && filter->ops.type != EGL_FILTER_TYPE_INTERNAL)
continue;
egl_filterSetOutputResHint(filter, targetX, targetY);
if (!egl_filterSetup(filter, outputFormat, outputX, outputY,
@@ -777,6 +786,7 @@ static bool configureChain(EGL_PostProcess * this, EGL_PixelFormat pixFmt,
this->config.targetX = targetX;
this->config.targetY = targetY;
this->config.useDMA = useDMA;
this->config.hdrPQ = hdrPQ;
this->config.outputX = outputX;
this->config.outputY = outputY;
this->config.fullFrame = fullFrame;
@@ -786,7 +796,7 @@ static bool configureChain(EGL_PostProcess * this, EGL_PixelFormat pixFmt,
bool egl_postProcessRun(EGL_PostProcess * this, EGL_Texture * tex,
EGL_DesktopRects * rects, int desktopWidth, int desktopHeight,
unsigned int targetX, unsigned int targetY, bool useDMA)
unsigned int targetX, unsigned int targetY, bool useDMA, bool hdrPQ)
{
if (targetX == 0 && targetY == 0)
DEBUG_FATAL("targetX || targetY == 0");
@@ -802,7 +812,7 @@ bool egl_postProcessRun(EGL_PostProcess * this, EGL_Texture * tex,
atomic_load_explicit(&this->modified, memory_order_acquire);
const bool reconfigure = modified ||
!configMatches(this, pixFmt, inputX, inputY,
desktopWidth, desktopHeight, targetX, targetY, useDMA);
desktopWidth, desktopHeight, targetX, targetY, useDMA, hdrPQ);
if (reconfigure)
{
@@ -811,7 +821,7 @@ bool egl_postProcessRun(EGL_PostProcess * this, EGL_Texture * tex,
&this->modified, false, memory_order_acq_rel);
if (!configureChain(this, pixFmt, inputX, inputY,
desktopWidth, desktopHeight, targetX, targetY, useDMA))
desktopWidth, desktopHeight, targetX, targetY, useDMA, hdrPQ))
{
egl_postProcessInvalidate(this);
return false;