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Nano-X: added function to copy from a drawable to a wxImage

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@14418 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Julian Smart 2002-02-27 16:01:46 +00:00
parent 888d3c8082
commit a20c04abf2
1 changed files with 145 additions and 0 deletions
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145
src/x11/bitmap.cpp
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@ -28,6 +28,9 @@
#if wxUSE_NANOX
#undef wxHAVE_LIB_XPM
#define wxHAVE_LIB_XPM 0
// Copy from the drawable to the wxImage
bool wxGetImageFromDrawable(GR_DRAW_ID drawable, int srcX, int srcY, int width, int height, wxImage& image);
#endif
#if wxUSE_XPM
@ -1296,3 +1299,145 @@ WXDisplay *wxBitmap::GetDisplay() const
return M_BMPDATA->m_display;
}
#if wxUSE_NANOX
// Copy from the drawable to the wxImage
bool wxGetImageFromDrawable(GR_DRAW_ID drawable, int srcX, int srcY, int width, int height, wxImage& image)
{
GR_SCREEN_INFO sinfo;
int x, y;
GR_PIXELVAL *pixels;
GR_PIXELVAL pixel;
GR_COLOR colour;
GR_PALETTE* palette = NULL;
GrGetScreenInfo(&sinfo);
if (sinfo.pixtype == MWPF_PALETTE) {
if(!(palette = malloc(sizeof(GR_PALETTE)))) {
return FALSE;
}
GrGetSystemPalette(palette);
}
if(!(pixels = (GR_PIXELVAL*) malloc(sizeof(GR_PIXELVAL) * width * height)))
{
return FALSE;
}
if (!image.Create(width, height))
{
free(pixels);
return FALSE;
}
GrReadArea(drawable, srcX, srcY, width, height,
pixels);
for(x = 0; x < sinfo.cols; x++) {
pp = (unsigned char *)pixels +
((x + (y * sinfo.cols)) *
sizeof(GR_PIXELVAL));
switch(sinfo.pixtype) {
/* FIXME: These may need modifying on big endian. */
case MWPF_TRUECOLOR0888:
case MWPF_TRUECOLOR888:
rgb[0] = pp[2];
rgb[1] = pp[1];
rgb[2] = pp[0];
break;
case MWPF_PALETTE:
rgb[0] = palette->palette[pp[0]].r;
rgb[1] = palette->palette[pp[0]].g;
rgb[2] = palette->palette[pp[0]].b;
break;
case MWPF_TRUECOLOR565:
rgb[0] = pp[1] & 0xf8;
rgb[1] = ((pp[1] & 0x07) << 5) |
((pp[0] & 0xe0) >> 3);
rgb[2] = (pp[0] & 0x1f) << 3;
break;
case MWPF_TRUECOLOR555:
rgb[0] = (pp[1] & 0x7c) << 1;
rgb[1] = ((pp[1] & 0x03) << 6) |
((pp[0] & 0xe0) >> 2);
rgb[2] = (pp[0] & 0x1f) << 3;
break;
case MWPF_TRUECOLOR332:
rgb[0] = pp[0] & 0xe0;
rgb[1] = (pp[0] & 0x1c) << 3;
rgb[2] = (pp[0] & 0x03) << 6;
break;
default:
fprintf(stderr, "Unsupported pixel "
"format\n");
return 1;
}
image.SetRGB(x, y, rgb[0], rgb[1], rgb[2]);
}
}
free(pixels);
if(palette) free(palette);
return TRUE;
}
#if 0
int GrGetPixelColor(GR_SCREEN_INFO* sinfo, GR_PALETTE* palette, GR_PIXELVAL pixel,
unsigned char* red, unsigned char* green, unsigned char* blue)
{
unsigned char rgb[3], *pp;
pp = (unsigned char*) & pixel ;
switch (sinfo.pixtype)
{
/* FIXME: These may need modifying on big endian. */
case MWPF_TRUECOLOR0888:
case MWPF_TRUECOLOR888:
rgb[0] = pp[2];
rgb[1] = pp[1];
rgb[2] = pp[0];
break;
case MWPF_PALETTE:
rgb[0] = palette->palette[pp[0]].r;
rgb[1] = palette->palette[pp[0]].g;
rgb[2] = palette->palette[pp[0]].b;
break;
case MWPF_TRUECOLOR565:
rgb[0] = pp[1] & 0xf8;
rgb[1] = ((pp[1] & 0x07) << 5) |
((pp[0] & 0xe0) >> 3);
rgb[2] = (pp[0] & 0x1f) << 3;
break;
case MWPF_TRUECOLOR555:
rgb[0] = (pp[1] & 0x7c) << 1;
rgb[1] = ((pp[1] & 0x03) << 6) |
((pp[0] & 0xe0) >> 2);
rgb[2] = (pp[0] & 0x1f) << 3;
break;
case MWPF_TRUECOLOR332:
rgb[0] = pp[0] & 0xe0;
rgb[1] = (pp[0] & 0x1c) << 3;
rgb[2] = (pp[0] & 0x03) << 6;
break;
default:
fprintf(stderr, "Unsupported pixel format\n");
return 0;
}
*(red) = rgb[0];
*(green) = rgb[1];
*(blue) = rgb[2];
return 1;
}
#endif
#endif
// wxUSE_NANOX