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LibPDF: Propogate errors from ColorSpace::color()

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This commit is contained in:
Matthew Olsson 2023-07-18 18:35:51 -07:00 • committed by Sam Atkins
parent e989008471
commit 9a0e1dde42
3 changed files with 25 additions and 25 deletions
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16
Userland/Libraries/LibPDF/ColorSpace.cpp
View file

@ -69,7 +69,7 @@ NonnullRefPtr<DeviceGrayColorSpace> DeviceGrayColorSpace::the()
return instance;
}
Color DeviceGrayColorSpace::color(Vector<Value> const& arguments) const
PDFErrorOr<Color> DeviceGrayColorSpace::color(Vector<Value> const& arguments) const
{
VERIFY(arguments.size() == 1);
auto gray = static_cast<u8>(arguments[0].to_float() * 255.0f);
@ -87,7 +87,7 @@ NonnullRefPtr<DeviceRGBColorSpace> DeviceRGBColorSpace::the()
return instance;
}
Color DeviceRGBColorSpace::color(Vector<Value> const& arguments) const
PDFErrorOr<Color> DeviceRGBColorSpace::color(Vector<Value> const& arguments) const
{
VERIFY(arguments.size() == 3);
auto r = static_cast<u8>(arguments[0].to_float() * 255.0f);
@ -107,7 +107,7 @@ NonnullRefPtr<DeviceCMYKColorSpace> DeviceCMYKColorSpace::the()
return instance;
}
Color DeviceCMYKColorSpace::color(Vector<Value> const& arguments) const
PDFErrorOr<Color> DeviceCMYKColorSpace::color(Vector<Value> const& arguments) const
{
VERIFY(arguments.size() == 4);
auto c = arguments[0].to_float();
@ -265,7 +265,7 @@ constexpr Array<float, 3> convert_to_srgb(Array<float, 3> xyz)
return matrix_multiply(conversion_matrix, xyz);
}
Color CalRGBColorSpace::color(Vector<Value> const& arguments) const
PDFErrorOr<Color> CalRGBColorSpace::color(Vector<Value> const& arguments) const
{
VERIFY(arguments.size() == 3);
auto a = clamp(arguments[0].to_float(), 0.0f, 1.0f);
@ -329,10 +329,10 @@ ICCBasedColorSpace::ICCBasedColorSpace(NonnullRefPtr<Gfx::ICC::Profile> profile)
{
}
Color ICCBasedColorSpace::color(Vector<Value> const& arguments) const
PDFErrorOr<Color> ICCBasedColorSpace::color(Vector<Value> const& arguments) const
{
if (!s_srgb_profile)
s_srgb_profile = MUST(Gfx::ICC::sRGB());
s_srgb_profile = TRY(Gfx::ICC::sRGB());
Vector<u8> bytes;
for (auto const& arg : arguments) {
@ -340,9 +340,9 @@ Color ICCBasedColorSpace::color(Vector<Value> const& arguments) const
bytes.append(static_cast<u8>(arg.to_float() * 255.0f));
}
auto pcs = MUST(m_profile->to_pcs(bytes));
auto pcs = TRY(m_profile->to_pcs(bytes));
Array<u8, 3> output;
MUST(s_srgb_profile->from_pcs(pcs, output.span()));
TRY(s_srgb_profile->from_pcs(pcs, output.span()));
return Color(output[0], output[1], output[2]);
}

12
Userland/Libraries/LibPDF/ColorSpace.h
View file

@ -55,7 +55,7 @@ public:
virtual ~ColorSpace() = default;
virtual Color color(Vector<Value> const& arguments) const = 0;
virtual PDFErrorOr<Color> color(Vector<Value> const& arguments) const = 0;
virtual int number_of_components() const = 0;
virtual Vector<float> default_decode() const = 0;
virtual ColorSpaceFamily const& family() const = 0;
@ -67,7 +67,7 @@ public:
~DeviceGrayColorSpace() override = default;
Color color(Vector<Value> const& arguments) const override;
PDFErrorOr<Color> color(Vector<Value> const& arguments) const override;
int number_of_components() const override { return 1; }
Vector<float> default_decode() const override;
ColorSpaceFamily const& family() const override { return ColorSpaceFamily::DeviceGray; }
@ -82,7 +82,7 @@ public:
~DeviceRGBColorSpace() override = default;
Color color(Vector<Value> const& arguments) const override;
PDFErrorOr<Color> color(Vector<Value> const& arguments) const override;
int number_of_components() const override { return 3; }
Vector<float> default_decode() const override;
ColorSpaceFamily const& family() const override { return ColorSpaceFamily::DeviceRGB; }
@ -97,7 +97,7 @@ public:
~DeviceCMYKColorSpace() override = default;
Color color(Vector<Value> const& arguments) const override;
PDFErrorOr<Color> color(Vector<Value> const& arguments) const override;
int number_of_components() const override { return 4; }
Vector<float> default_decode() const override;
ColorSpaceFamily const& family() const override { return ColorSpaceFamily::DeviceCMYK; }
@ -112,7 +112,7 @@ public:
~CalRGBColorSpace() override = default;
Color color(Vector<Value> const& arguments) const override;
PDFErrorOr<Color> color(Vector<Value> const& arguments) const override;
int number_of_components() const override { return 3; }
Vector<float> default_decode() const override;
ColorSpaceFamily const& family() const override { return ColorSpaceFamily::CalRGB; }
@ -132,7 +132,7 @@ public:
~ICCBasedColorSpace() override = default;
Color color(Vector<Value> const& arguments) const override;
PDFErrorOr<Color> color(Vector<Value> const& arguments) const override;
int number_of_components() const override { VERIFY_NOT_REACHED(); }
Vector<float> default_decode() const override;
ColorSpaceFamily const& family() const override { return ColorSpaceFamily::ICCBased; }

22
Userland/Libraries/LibPDF/Renderer.cpp
View file

@ -523,7 +523,7 @@ RENDERER_HANDLER(set_painting_space)
RENDERER_HANDLER(set_stroking_color)
{
state().stroke_color = state().stroke_color_space->color(args);
state().stroke_color = TRY(state().stroke_color_space->color(args));
return {};
}
@ -534,13 +534,13 @@ RENDERER_HANDLER(set_stroking_color_extended)
if (last_arg.has<NonnullRefPtr<Object>>() && last_arg.get<NonnullRefPtr<Object>>()->is<NameObject>())
TODO();
state().stroke_color = state().stroke_color_space->color(args);
state().stroke_color = TRY(state().stroke_color_space->color(args));
return {};
}
RENDERER_HANDLER(set_painting_color)
{
state().paint_color = state().paint_color_space->color(args);
state().paint_color = TRY(state().paint_color_space->color(args));
return {};
}
@ -551,49 +551,49 @@ RENDERER_HANDLER(set_painting_color_extended)
if (last_arg.has<NonnullRefPtr<Object>>() && last_arg.get<NonnullRefPtr<Object>>()->is<NameObject>())
TODO();
state().paint_color = state().paint_color_space->color(args);
state().paint_color = TRY(state().paint_color_space->color(args));
return {};
}
RENDERER_HANDLER(set_stroking_color_and_space_to_gray)
{
state().stroke_color_space = DeviceGrayColorSpace::the();
state().stroke_color = state().stroke_color_space->color(args);
state().stroke_color = TRY(state().stroke_color_space->color(args));
return {};
}
RENDERER_HANDLER(set_painting_color_and_space_to_gray)
{
state().paint_color_space = DeviceGrayColorSpace::the();
state().paint_color = state().paint_color_space->color(args);
state().paint_color = TRY(state().paint_color_space->color(args));
return {};
}
RENDERER_HANDLER(set_stroking_color_and_space_to_rgb)
{
state().stroke_color_space = DeviceRGBColorSpace::the();
state().stroke_color = state().stroke_color_space->color(args);
state().stroke_color = TRY(state().stroke_color_space->color(args));
return {};
}
RENDERER_HANDLER(set_painting_color_and_space_to_rgb)
{
state().paint_color_space = DeviceRGBColorSpace::the();
state().paint_color = state().paint_color_space->color(args);
state().paint_color = TRY(state().paint_color_space->color(args));
return {};
}
RENDERER_HANDLER(set_stroking_color_and_space_to_cmyk)
{
state().stroke_color_space = DeviceCMYKColorSpace::the();
state().stroke_color = state().stroke_color_space->color(args);
state().stroke_color = TRY(state().stroke_color_space->color(args));
return {};
}
RENDERER_HANDLER(set_painting_color_and_space_to_cmyk)
{
state().paint_color_space = DeviceCMYKColorSpace::the();
state().paint_color = state().paint_color_space->color(args);
state().paint_color = TRY(state().paint_color_space->color(args));
return {};
}
@ -795,7 +795,7 @@ PDFErrorOr<NonnullRefPtr<Gfx::Bitmap>> Renderer::load_image(NonnullRefPtr<Stream
sample = sample.slice(bytes_per_component);
component_values[i] = Value { component_value_decoders[i].interpolate(component[0]) };
}
auto color = color_space->color(component_values);
auto color = TRY(color_space->color(component_values));
bitmap->set_pixel(x, y, color);
++x;
if (x == width) {