Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 200 insertions, 0 deletions

diff --git a/gfx/thebes/PrintTarget.cpp b/gfx/thebes/PrintTarget.cpp
new file mode 100644
index 0000000000..7ab6984d8d
--- /dev/null
+++ b/gfx/thebes/PrintTarget.cpp
@@ -0,0 +1,200 @@
+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * 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 "PrintTarget.h"
+
+#include "cairo.h"
+#ifdef CAIRO_HAS_QUARTZ_SURFACE
+#  include "cairo-quartz.h"
+#endif
+#ifdef CAIRO_HAS_WIN32_SURFACE
+#  include "cairo-win32.h"
+#endif
+#include "mozilla/gfx/2D.h"
+#include "mozilla/gfx/HelpersCairo.h"
+#include "mozilla/gfx/Logging.h"
+#include "mozilla/StaticPrefs_gfx.h"
+#include "nsReadableUtils.h"
+#include "nsString.h"
+#include "nsUTF8Utils.h"
+
+// IPP spec disallow the job-name which is over 255 characters.
+// RFC: https://tools.ietf.org/html/rfc2911#section-4.1.2
+#define IPP_JOB_NAME_LIMIT_LENGTH 255
+
+namespace mozilla::gfx {
+
+PrintTarget::PrintTarget(cairo_surface_t* aCairoSurface, const IntSize& aSize)
+    : mCairoSurface(aCairoSurface),
+      mSize(aSize),
+      mIsFinished(false)
+#ifdef DEBUG
+      ,
+      mHasActivePage(false)
+#endif
+
+{
+#if 0
+  // aCairoSurface is null when our PrintTargetThebes subclass's ctor calls us.
+  // Once PrintTargetThebes is removed, enable this assertion.
+  MOZ_ASSERT(aCairoSurface && !cairo_surface_status(aCairoSurface),
+             "CreateOrNull factory methods should not call us without a "
+             "valid cairo_surface_t*");
+#endif
+
+  // CreateOrNull factory methods hand over ownership of aCairoSurface,
+  // so we don't call cairo_surface_reference(aSurface) here.
+
+  // This code was copied from gfxASurface::Init:
+  if (mCairoSurface &&
+      cairo_surface_get_content(mCairoSurface) != CAIRO_CONTENT_COLOR) {
+    cairo_surface_set_subpixel_antialiasing(
+        mCairoSurface, CAIRO_SUBPIXEL_ANTIALIASING_DISABLED);
+  }
+}
+
+PrintTarget::~PrintTarget() {
+  // null surfaces are allowed here
+  cairo_surface_destroy(mCairoSurface);
+  mCairoSurface = nullptr;
+}
+
+already_AddRefed<DrawTarget> PrintTarget::MakeDrawTarget(
+    const IntSize& aSize, DrawEventRecorder* aRecorder) {
+  MOZ_ASSERT(mCairoSurface,
+             "We shouldn't have been constructed without a cairo surface");
+
+  // This should not be called outside of BeginPage()/EndPage() calls since
+  // some backends can only provide a valid DrawTarget at that time.
+  MOZ_ASSERT(mHasActivePage, "We can't guarantee a valid DrawTarget");
+
+  if (cairo_surface_status(mCairoSurface)) {
+    return nullptr;
+  }
+
+  // Note than aSize may not be the same as mSize (the size of mCairoSurface).
+  // See the comments in our header.  If the sizes are different a clip will
+  // be applied to mCairoSurface.
+  RefPtr<DrawTarget> dt =
+      Factory::CreateDrawTargetForCairoSurface(mCairoSurface, aSize);
+  if (!dt || !dt->IsValid()) {
+    return nullptr;
+  }
+
+  if (aRecorder) {
+    dt = CreateRecordingDrawTarget(aRecorder, dt);
+    if (!dt || !dt->IsValid()) {
+      return nullptr;
+    }
+  }
+
+  return dt.forget();
+}
+
+already_AddRefed<DrawTarget> PrintTarget::GetReferenceDrawTarget() {
+  if (!mRefDT) {
+    const IntSize size(1, 1);
+
+    cairo_surface_t* similar;
+    switch (cairo_surface_get_type(mCairoSurface)) {
+#ifdef CAIRO_HAS_WIN32_SURFACE
+      case CAIRO_SURFACE_TYPE_WIN32:
+        similar = cairo_win32_surface_create_with_dib(
+            CairoContentToCairoFormat(cairo_surface_get_content(mCairoSurface)),
+            size.width, size.height);
+        break;
+#endif
+#ifdef CAIRO_HAS_QUARTZ_SURFACE
+      case CAIRO_SURFACE_TYPE_QUARTZ:
+        if (StaticPrefs::gfx_cairo_quartz_cg_layer_enabled()) {
+          similar = cairo_quartz_surface_create_cg_layer(
+              mCairoSurface, cairo_surface_get_content(mCairoSurface),
+              size.width, size.height);
+          break;
+        }
+        [[fallthrough]];
+#endif
+      default:
+        similar = cairo_surface_create_similar(
+            mCairoSurface, cairo_surface_get_content(mCairoSurface), size.width,
+            size.height);
+        break;
+    }
+
+    if (cairo_surface_status(similar)) {
+      return nullptr;
+    }
+
+    RefPtr<DrawTarget> dt =
+        Factory::CreateDrawTargetForCairoSurface(similar, size);
+
+    // The DT addrefs the surface, so we need drop our own reference to it:
+    cairo_surface_destroy(similar);
+
+    if (!dt || !dt->IsValid()) {
+      return nullptr;
+    }
+    mRefDT = std::move(dt);
+  }
+
+  return do_AddRef(mRefDT);
+}
+
+/* static */
+void PrintTarget::AdjustPrintJobNameForIPP(const nsAString& aJobName,
+                                           nsCString& aAdjustedJobName) {
+  CopyUTF16toUTF8(aJobName, aAdjustedJobName);
+
+  if (aAdjustedJobName.Length() > IPP_JOB_NAME_LIMIT_LENGTH) {
+    uint32_t length = RewindToPriorUTF8Codepoint(
+        aAdjustedJobName.get(), (IPP_JOB_NAME_LIMIT_LENGTH - 3U));
+    aAdjustedJobName.SetLength(length);
+    aAdjustedJobName.AppendLiteral("...");
+  }
+}
+
+/* static */
+void PrintTarget::AdjustPrintJobNameForIPP(const nsAString& aJobName,
+                                           nsString& aAdjustedJobName) {
+  nsAutoCString jobName;
+  AdjustPrintJobNameForIPP(aJobName, jobName);
+
+  CopyUTF8toUTF16(jobName, aAdjustedJobName);
+}
+
+/* static */
+already_AddRefed<DrawTarget> PrintTarget::CreateRecordingDrawTarget(
+    DrawEventRecorder* aRecorder, DrawTarget* aDrawTarget) {
+  MOZ_ASSERT(aRecorder);
+  MOZ_ASSERT(aDrawTarget);
+
+  RefPtr<DrawTarget> dt;
+
+  if (aRecorder) {
+    // It doesn't really matter what we pass as the DrawTarget here.
+    dt = gfx::Factory::CreateRecordingDrawTarget(aRecorder, aDrawTarget,
+                                                 aDrawTarget->GetRect());
+  }
+
+  if (!dt || !dt->IsValid()) {
+    gfxCriticalNote
+        << "Failed to create a recording DrawTarget for PrintTarget";
+    return nullptr;
+  }
+
+  return dt.forget();
+}
+
+void PrintTarget::Finish() {
+  if (mIsFinished) {
+    return;
+  }
+  mIsFinished = true;
+
+  // null surfaces are allowed here
+  cairo_surface_finish(mCairoSurface);
+}
+
+}  // namespace mozilla::gfx