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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /gfx/layers/GLImages.cpp
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gfx/layers/GLImages.cpp')
-rw-r--r--gfx/layers/GLImages.cpp99
1 files changed, 99 insertions, 0 deletions
diff --git a/gfx/layers/GLImages.cpp b/gfx/layers/GLImages.cpp
new file mode 100644
index 0000000000..064d0e07f6
--- /dev/null
+++ b/gfx/layers/GLImages.cpp
@@ -0,0 +1,99 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "GLImages.h"
+#include "GLContext.h"
+#include "GLContextProvider.h"
+#include "ScopedGLHelpers.h"
+#include "GLImages.h"
+#include "GLBlitHelper.h"
+#include "GLReadTexImageHelper.h"
+#include "GLLibraryEGL.h"
+#include "mozilla/gfx/Logging.h"
+
+using namespace mozilla;
+using namespace mozilla::gl;
+
+namespace mozilla {
+namespace layers {
+
+static RefPtr<GLContext> sSnapshotContext;
+
+already_AddRefed<gfx::SourceSurface> GLImage::GetAsSourceSurface() {
+ MOZ_ASSERT(NS_IsMainThread(), "Should be on the main thread");
+
+ if (!sSnapshotContext) {
+ nsCString discardFailureId;
+ sSnapshotContext = GLContextProvider::CreateHeadless({}, &discardFailureId);
+ if (!sSnapshotContext) {
+ NS_WARNING("Failed to create snapshot GLContext");
+ return nullptr;
+ }
+ }
+
+ sSnapshotContext->MakeCurrent();
+ ScopedTexture scopedTex(sSnapshotContext);
+ ScopedBindTexture boundTex(sSnapshotContext, scopedTex.Texture());
+
+ gfx::IntSize size = GetSize();
+ sSnapshotContext->fTexImage2D(LOCAL_GL_TEXTURE_2D, 0, LOCAL_GL_RGBA,
+ size.width, size.height, 0, LOCAL_GL_RGBA,
+ LOCAL_GL_UNSIGNED_BYTE, nullptr);
+
+ ScopedFramebufferForTexture autoFBForTex(sSnapshotContext,
+ scopedTex.Texture());
+ if (!autoFBForTex.IsComplete()) {
+ gfxCriticalError()
+ << "GetAsSourceSurface: ScopedFramebufferForTexture failed.";
+ return nullptr;
+ }
+
+ const gl::OriginPos destOrigin = gl::OriginPos::TopLeft;
+ {
+ const ScopedBindFramebuffer bindFB(sSnapshotContext, autoFBForTex.FB());
+ if (!sSnapshotContext->BlitHelper()->BlitImageToFramebuffer(this, size,
+ destOrigin)) {
+ return nullptr;
+ }
+ }
+
+ RefPtr<gfx::DataSourceSurface> source =
+ gfx::Factory::CreateDataSourceSurface(size, gfx::SurfaceFormat::B8G8R8A8);
+ if (NS_WARN_IF(!source)) {
+ return nullptr;
+ }
+
+ ScopedBindFramebuffer bind(sSnapshotContext, autoFBForTex.FB());
+ ReadPixelsIntoDataSurface(sSnapshotContext, source);
+ return source.forget();
+}
+
+#ifdef MOZ_WIDGET_ANDROID
+SurfaceTextureImage::SurfaceTextureImage(
+ AndroidSurfaceTextureHandle aHandle, const gfx::IntSize& aSize,
+ bool aContinuous, gl::OriginPos aOriginPos, bool aHasAlpha,
+ Maybe<gfx::Matrix4x4> aTransformOverride)
+ : GLImage(ImageFormat::SURFACE_TEXTURE),
+ mHandle(aHandle),
+ mSize(aSize),
+ mContinuous(aContinuous),
+ mOriginPos(aOriginPos),
+ mHasAlpha(aHasAlpha),
+ mTransformOverride(aTransformOverride) {
+ MOZ_ASSERT(mHandle);
+}
+
+Maybe<SurfaceDescriptor> SurfaceTextureImage::GetDesc() {
+ SurfaceDescriptor sd = SurfaceTextureDescriptor(
+ mHandle, mSize,
+ mHasAlpha ? gfx::SurfaceFormat::R8G8B8A8 : gfx::SurfaceFormat::R8G8B8X8,
+ false /* NOT continuous */, mTransformOverride);
+ return Some(sd);
+}
+#endif
+
+} // namespace layers
+} // namespace mozilla