SkBlitRow Class Reference

#include <SkBlitRow.h>

Public Types
enum	Flags32 { kGlobalAlpha_Flag32 = 1 << 0 , kSrcPixelAlpha_Flag32 = 1 << 1 }
typedef void(*	Proc32) (uint32_t dst[], const SkPMColor src[], int count, U8CPU alpha)

Static Public Member Functions
static Proc32	Factory32 (unsigned flags32)
static void	Color32 (SkPMColor dst[], int count, SkPMColor color)

Detailed Description

Definition at line 14 of file SkBlitRow.h.

Member Typedef Documentation

Proc32

typedef void(* SkBlitRow::Proc32) (uint32_t dst[], const SkPMColor src[], int count, U8CPU alpha)

Function pointer that blends 32bit colors onto a 32bit destination.

Parameters

dst	array of dst 32bit colors
src	array of src 32bit colors (w/ or w/o alpha)
count	number of colors to blend
alpha	global alpha to be applied to all src colors

Definition at line 27 of file SkBlitRow.h.

Member Enumeration Documentation

Flags32

enum SkBlitRow::Flags32

Enumerator
kGlobalAlpha_Flag32
kSrcPixelAlpha_Flag32

Definition at line 16 of file SkBlitRow.h.

                 {
        kGlobalAlpha_Flag32     = 1 << 0,
        kSrcPixelAlpha_Flag32   = 1 << 1
    };

Member Function Documentation

Color32()

void SkBlitRow::Color32 ( SkPMColor  dst[], int  count, SkPMColor  color  )

static

Blend a single color onto a row of S32 pixels, writing the result back to the same memory.

Definition at line 555 of file SkBlitRow_D32.cpp.

                                                                   {
    switch (SkGetPackedA32(color)) {
        case   0: /* Nothing to do */                  return;
        case 255: SkOpts::memset32(dst, color, count); return;
    }
    return SkOpts::blit_row_color32(dst, count, color);
}

Factory32()

SkBlitRow::Proc32 SkBlitRow::Factory32 ( unsigned  flags32 )

static

Definition at line 540 of file SkBlitRow_D32.cpp.

                                                   {
    static const SkBlitRow::Proc32 kProcs[] = {
        blit_row_s32_opaque,
        blit_row_s32_blend,
        nullptr,  // blit_row_s32a_opaque is in SkOpts
        blit_row_s32a_blend
    };
 
    SkASSERT(flags < std::size(kProcs));
    flags &= std::size(kProcs) - 1;  // just to be safe
 
    return flags == 2 ? SkOpts::blit_row_s32a_opaque
                      : kProcs[flags];
}

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The documentation for this class was generated from the following files:

• third_party/skia/src/core/SkBlitRow.h
• third_party/skia/src/core/SkBlitRow_D32.cpp