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libcamera: pixel_format: Make PixelFormat usable as a constexpr

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The PixelFormat class is a lightweight wrapper around a 32-bit FourCC
and a 64-bit modifier. Make is usable as a constexpr.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
This commit is contained in:
Laurent Pinchart 2020-05-22 03:54:29 +03:00
parent 4bd09795a1
commit 79f9625607
2 changed files with 15 additions and 14 deletions
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19
include/libcamera/pixel_format.h
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@ -18,18 +18,25 @@ namespace libcamera {
class PixelFormat
{
public:
PixelFormat();
explicit PixelFormat(uint32_t fourcc, uint64_t modifier = 0);
constexpr PixelFormat()
: fourcc_(0), modifier_(0)
{
}
explicit constexpr PixelFormat(uint32_t fourcc, uint64_t modifier = 0)
: fourcc_(fourcc), modifier_(modifier)
{
}
bool operator==(const PixelFormat &other) const;
bool operator!=(const PixelFormat &other) const { return !(*this == other); }
bool operator<(const PixelFormat &other) const;
bool isValid() const { return fourcc_ != 0; }
constexpr bool isValid() const { return fourcc_ != 0; }
operator uint32_t() const { return fourcc_; }
uint32_t fourcc() const { return fourcc_; }
uint64_t modifier() const { return modifier_; }
constexpr operator uint32_t() const { return fourcc_; }
constexpr uint32_t fourcc() const { return fourcc_; }
constexpr uint64_t modifier() const { return modifier_; }
std::string toString() const;