image_util.h File Reference

#include <cstddef>
#include "pagespeed/kernel/base/basictypes.h"
#include "pagespeed/kernel/base/countdown_timer.h"
#include "pagespeed/kernel/base/string.h"
#include "pagespeed/kernel/base/string_util.h"
#include "pagespeed/kernel/http/image_types.pb.h"

Go to the source code of this file.

Classes
class	pagespeed::image_compression::ConversionTimeoutHandler
	Class for managing image conversion timeouts. More...
struct	pagespeed::image_compression::ScanlineWriterConfig

Namespaces
	net_instaweb
	Unit-test framework for wget fetcher.
	pagespeed
	for size_t

Typedefs
typedef uint8_t	pagespeed::image_compression::PixelRgbaChannels [RGBA_NUM_CHANNELS]
typedef uint32	pagespeed::image_compression::size_px

Enumerations
enum	QuirksMode { QUIRKS_NONE = 0, QUIRKS_CHROME, QUIRKS_FIREFOX }
enum	ImageFormat {   IMAGE_UNKNOWN, IMAGE_JPEG, IMAGE_PNG, IMAGE_GIF,   IMAGE_WEBP }
enum	PixelFormat { pagespeed::image_compression::UNSUPPORTED, pagespeed::image_compression::RGB_888, pagespeed::image_compression::RGBA_8888, pagespeed::image_compression::GRAY_8 }
enum	RgbaChannels {   RGBA_RED = 0, RGBA_GREEN, RGBA_BLUE, RGBA_ALPHA,   RGBA_NUM_CHANNELS }
enum	PreferredLibwebpLevel { WEBP_NONE = 0, WEBP_LOSSY, WEBP_LOSSLESS, WEBP_ANIMATED }

Functions
uint32_t	pagespeed::image_compression::PackHiToLo (uint8_t i3, uint8_t i2, uint8_t i1, uint8_t i0)
uint32_t	pagespeed::image_compression::PackAsArgb (uint8_t alpha, uint8_t red, uint8_t green, uint8_t blue)
	Packs the given A, R, G, B values into a single ARGB uint32.
uint32_t	pagespeed::image_compression::RgbaToPackedArgb (const PixelRgbaChannels rgba)
uint32_t	pagespeed::image_compression::RgbToPackedArgb (const PixelRgbaChannels rgba)
uint32_t	pagespeed::image_compression::GrayscaleToPackedArgb (const uint8_t luminance)
const char *	pagespeed::image_compression::ImageFormatToMimeTypeString (ImageFormat image_type)
	Returns the MIME-type string corresponding to the given ImageFormat.
const char *	pagespeed::image_compression::ImageFormatToString (ImageFormat image_type)
	Returns a string representation of the given ImageFormat.
const char *	pagespeed::image_compression::GetPixelFormatString (PixelFormat pixel_format)
	Returns a string representation of the given PixelFormat.
size_t	pagespeed::image_compression::GetBytesPerPixel (PixelFormat pixel_format)
net_instaweb::ImageType	pagespeed::image_compression::ComputeImageType (const StringPiece &buf)

Variables
const uint8_t	pagespeed::image_compression::kAlphaOpaque = 255
const uint8_t	pagespeed::image_compression::kAlphaTransparent = 0