Blend_ARGB32_on_RGB16_SourceAndConstAlpha Struct Reference

Public Functions
	Blend_ARGB32_on_RGB16_SourceAndConstAlpha (quint32 alpha)
void	flush (void *)
void	write (quint16 *dst, quint32 src)

Public Variables
quint32	m_alpha

Detailed Description

Definition at line 160 of file qblendfunctions.cpp.

Constructors and Destructors

Blend_ARGB32_on_RGB16_SourceAndConstAlpha()

Blend_ARGB32_on_RGB16_SourceAndConstAlpha::Blend_ARGB32_on_RGB16_SourceAndConstAlpha ( quint32  alpha )

inline

Definition at line 161 of file qblendfunctions.cpp.

                                                                    {
        m_alpha = (alpha * 255) >> 8;
    }

Functions

flush()

void Blend_ARGB32_on_RGB16_SourceAndConstAlpha::flush ( void *  )

inline

Definition at line 176 of file qblendfunctions.cpp.

{}

write()

void Blend_ARGB32_on_RGB16_SourceAndConstAlpha::write ( quint16 *  dst, quint32  src  )

inline

Definition at line 165 of file qblendfunctions.cpp.

                                                 {
        src = BYTE_MUL(src, m_alpha);
        const quint8 alpha = qAlpha(src);
        if(alpha) {
            quint16 s = convert_argb32_to_rgb16(src);
            if(alpha < 255)
                s += BYTE_MUL_RGB16(*dst, 255 - alpha);
            *dst = s;
        }
    }

Properties

m_alpha

quint32 Blend_ARGB32_on_RGB16_SourceAndConstAlpha::m_alpha

Definition at line 178 of file qblendfunctions.cpp.

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The documentation for this struct was generated from the following file:

• /src/gui/painting/qblendfunctions.cpp