本文整理汇总了C++中palette_device::pens方法的典型用法代码示例。如果您正苦于以下问题：C++ palette_device::pens方法的具体用法？C++ palette_device::pens怎么用？C++ palette_device::pens使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类palette_device的用法示例。
在下文中一共展示了palette_device::pens方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: while
static inline void K053936GP_copyroz32clip( running_machine &machine,
bitmap_rgb32 &dst_bitmap, bitmap_ind16 &src_bitmap,
const rectangle &dst_cliprect, const rectangle &src_cliprect,
uint32_t _startx,uint32_t _starty,int _incxx,int _incxy,int _incyx,int _incyy,
int tilebpp, int blend, int alpha, int clip, int pixeldouble_output, palette_device &palette )
{
static const int colormask[8]={1,3,7,0xf,0x1f,0x3f,0x7f,0xff};
int cy, cx;
int ecx;
int src_pitch, incxy, incxx;
int src_minx, src_maxx, src_miny, src_maxy, cmask;
uint16_t *src_base;
size_t src_size;
const pen_t *pal_base;
int dst_ptr;
int dst_size;
int dst_base2;
int tx, dst_pitch;
uint32_t *dst_base;
int starty, incyy, startx, incyx, ty, sx, sy;
incxy = _incxy; incxx = _incxx; incyy = _incyy; incyx = _incyx;
starty = _starty; startx = _startx;
if (clip) // set source clip range to some extreme values when disabled
{
src_minx = src_cliprect.min_x;
src_maxx = src_cliprect.max_x;
src_miny = src_cliprect.min_y;
src_maxy = src_cliprect.max_y;
}
// this simply isn't safe to do!
else { src_minx = src_miny = -0x10000; src_maxx = src_maxy = 0x10000; }
// set target clip range
sx = dst_cliprect.min_x;
tx = dst_cliprect.max_x - sx + 1;
sy = dst_cliprect.min_y;
ty = dst_cliprect.max_y - sy + 1;
startx += sx * incxx + sy * incyx;
starty += sx * incxy + sy * incyy;
// adjust entry points and other loop constants
dst_pitch = dst_bitmap.rowpixels();
dst_base = &dst_bitmap.pix32(0);
dst_base2 = sy * dst_pitch + sx + tx;
ecx = tx = -tx;
tilebpp = (tilebpp-1) & 7;
pal_base = palette.pens();
cmask = colormask[tilebpp];
src_pitch = src_bitmap.rowpixels();
src_base = &src_bitmap.pix16(0);
src_size = src_bitmap.width() * src_bitmap.height();
dst_size = dst_bitmap.width() * dst_bitmap.height();
dst_ptr = 0;//dst_base;
cy = starty;
cx = startx;
if (blend > 0)
{
dst_ptr += dst_pitch; // draw blended
starty += incyy;
startx += incyx;
do {
do {
int srcx = (cx >> 16) & 0x1fff;
int srcy = (cy >> 16) & 0x1fff;
int pixel;
uint32_t offs;
offs = srcy * src_pitch + srcx;
cx += incxx;
cy += incxy;
if (offs>=src_size)
continue;
if (srcx < src_minx || srcx > src_maxx || srcy < src_miny || srcy > src_maxy)
continue;
pixel = src_base[offs];
if (!(pixel & cmask))
continue;
if ((dst_ptr+ecx+dst_base2)<dst_size) dst_base[dst_ptr+ecx+dst_base2] = alpha_blend_r32(pal_base[pixel], dst_base[dst_ptr+ecx+dst_base2], alpha);
if (pixeldouble_output)
{
ecx++;
if ((dst_ptr+ecx+dst_base2)<dst_size) dst_base[dst_ptr+ecx+dst_base2] = alpha_blend_r32(pal_base[pixel], dst_base[dst_ptr+ecx+dst_base2], alpha);
}
}
while (++ecx < 0);
//.........这里部分代码省略.........