wuggy/Dactyloidae
wuggy/Dactyloidae
1
0
Fork 0
mirror of https://repo.dactyloidae.xyz/Dactyloidae/UXP.git synced 2026-09-06 07:48:38 +09:00
Code Issues Projects Releases Packages Wiki Activity

(backported from UXP) Issue #3042 - Add canvas WebGL context powerPreference

Browse source
This commit is contained in:
wuggy 2026-04-10 17:26:10 +01:00
commit 6822713a60
4 changed files with 46 additions and 32 deletions
Download patch file Download diff file Expand all files Collapse all files

35
dom/canvas/WebGLContext.cpp
View file

@ -88,19 +88,26 @@ using namespace mozilla::gl;
using namespace mozilla::layers;
WebGLContextOptions::WebGLContextOptions()
: alpha(true)
, depth(true)
, stencil(false)
, premultipliedAlpha(true)
, antialias(true)
, preserveDrawingBuffer(false)
, failIfMajorPerformanceCaveat(false)
{
// Set default alpha state based on preference.
if (gfxPrefs::WebGLDefaultNoAlpha())
alpha = false;
}
bool
WebGLContextOptions::operator==(const WebGLContextOptions& r) const
{
bool eq = true;
eq &= (alpha == r.alpha);
eq &= (depth == r.depth);
eq &= (stencil == r.stencil);
eq &= (premultipliedAlpha == r.premultipliedAlpha);
eq &= (antialias == r.antialias);
eq &= (preserveDrawingBuffer == r.preserveDrawingBuffer);
eq &= (failIfMajorPerformanceCaveat == r.failIfMajorPerformanceCaveat);
eq &= (powerPreference == r.powerPreference);
return eq;
}
/*static*/ const uint32_t WebGLContext::kMinMaxColorAttachments = 4;
/*static*/ const uint32_t WebGLContext::kMinMaxDrawBuffers = 4;
@ -375,6 +382,7 @@ WebGLContext::SetContextOptions(JSContext* cx, JS::Handle<JS::Value> options,
newOpts.antialias = attributes.mAntialias;
newOpts.preserveDrawingBuffer = attributes.mPreserveDrawingBuffer;
newOpts.failIfMajorPerformanceCaveat = attributes.mFailIfMajorPerformanceCaveat;
newOpts.powerPreference = attributes.mPowerPreference;
if (attributes.mAlpha.WasPassed())
newOpts.alpha = attributes.mAlpha.Value();
@ -393,7 +401,7 @@ WebGLContext::SetContextOptions(JSContext* cx, JS::Handle<JS::Value> options,
newOpts.preserveDrawingBuffer ? 1 : 0);
#endif
if (mOptionsFrozen && newOpts != mOptions) {
if (mOptionsFrozen && !(newOpts == mOptions)) {
// Error if the options are already frozen, and the ones that were asked for
// aren't the same as what they were originally.
return NS_ERROR_FAILURE;
@ -692,6 +700,16 @@ WebGLContext::CreateAndInitGL(bool forceEnabled,
flags |= gl::CreateContextFlags::REQUIRE_COMPAT_PROFILE;
}
switch (mOptions.powerPreference) {
case dom::WebGLPowerPreference::Low_power:
break;
case dom::WebGLPowerPreference::High_performance:
default:
// Default to high-performance if queried.
flags |= gl::CreateContextFlags::HIGH_POWER;
break;
}
//////
const bool useEGL = PR_GetEnv("MOZ_WEBGL_FORCE_EGL");
@ -1377,6 +1395,7 @@ WebGLContext::GetContextAttributes(dom::Nullable<dom::WebGLContextAttributes>& r
result.mPremultipliedAlpha = mOptions.premultipliedAlpha;
result.mPreserveDrawingBuffer = mOptions.preserveDrawingBuffer;
result.mFailIfMajorPerformanceCaveat = mOptions.failIfMajorPerformanceCaveat;
result.mPowerPreference = mOptions.powerPreference;
}
NS_IMETHODIMP