#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include <stdlib.h>
#include <gcstruct.h>
#include "pixmapstr.h"
#include "xf86glx_util.h"
#include <X11/Xmd.h>
#ifdef ROUNDUP
#undef ROUNDUP
#endif
#define ROUNDUP(nbytes, pad) ((((nbytes) + ((pad)-1)) / (pad)) * ((pad)>>3))
XMesaImage *XMesaCreateImage(int bitsPerPixel, int width, int height, char *data)
{
XMesaImage *image;
image = (XMesaImage *)xalloc(sizeof(XMesaImage));
if (image) {
image->width = width;
image->height = height;
image->data = data;
image->bytes_per_line = ROUNDUP((bitsPerPixel * width), 32);
image->bits_per_pixel = bitsPerPixel;
}
return image;
}
void XMesaDestroyImage(XMesaImage *image)
{
if (image->data)
free(image->data);
xfree(image);
}
unsigned long XMesaGetPixel(XMesaImage *image, int x, int y)
{
CARD8 *row = (CARD8 *)(image->data + y*image->bytes_per_line);
CARD8 *i8;
CARD16 *i16;
CARD32 *i32;
switch (image->bits_per_pixel) {
case 8:
i8 = (CARD8 *)row;
return i8[x];
break;
case 15:
case 16:
i16 = (CARD16 *)row;
return i16[x];
break;
case 24:
i8 = (CARD8 *)row;
return (((CARD32)i8[x*3]) |
(((CARD32)i8[x*3+1])<<8) |
(((CARD32)i8[x*3+2])<<16));
break;
case 32:
i32 = (CARD32 *)row;
return i32[x];
break;
}
return 0;
}
#ifndef XMESA_USE_PUTPIXEL_MACRO
void XMesaPutPixel(XMesaImage *image, int x, int y, unsigned long pixel)
{
CARD8 *row = (CARD8 *)(image->data + y*image->bytes_per_line);
CARD8 *i8;
CARD16 *i16;
CARD32 *i32;
switch (image->bits_per_pixel) {
case 8:
i8 = (CARD8 *)row;
i8[x] = (CARD8)pixel;
break;
case 15:
case 16:
i16 = (CARD16 *)row;
i16[x] = (CARD16)pixel;
break;
case 24:
i8 = (CARD8 *)__row;
i8[x*3] = (CARD8)(p);
i8[x*3+1] = (CARD8)(p>>8);
i8[x*3+2] = (CARD8)(p>>16);
case 32:
i32 = (CARD32 *)row;
i32[x] = (CARD32)pixel;
break;
}
}
#endif
void XMesaPutImageHelper(ScreenPtr display,
DrawablePtr d, GCPtr gc,
XMesaImage *image,
int src_x, int src_y,
int dest_x, int dest_y,
unsigned int width, unsigned int height)
{
char *src = (image->data +
src_y * image->bytes_per_line +
((src_x * image->bits_per_pixel) >> 3));
ValidateGC(d, gc);
(*gc->ops->PutImage)(d, gc, d->depth, dest_x, dest_y, width, height,
0, ZPixmap, src);
}