static int create_bitmap(HDC *dc, HBITMAP *prev_bitmap,
uint8_t **data, int *nstride,
int width, int height)
{
HBITMAP bitmap;
struct {
BITMAPINFO inf;
RGBQUAD palette[255];
} bitmap_info;
memset(&bitmap_info, 0, sizeof(bitmap_info));
bitmap_info.inf.bmiHeader.biSize = sizeof(bitmap_info.inf.bmiHeader);
bitmap_info.inf.bmiHeader.biWidth = width;
bitmap_info.inf.bmiHeader.biHeight = height;
bitmap_info.inf.bmiHeader.biPlanes = 1;
bitmap_info.inf.bmiHeader.biBitCount = 32;
bitmap_info.inf.bmiHeader.biCompression = BI_RGB;
*nstride = width * 4;
*dc = create_compatible_dc();
if (!*dc) {
return 0;
}
bitmap = CreateDIBSection(*dc, &bitmap_info.inf, 0, (void **)data, NULL, 0);
if (!bitmap) {
DeleteObject(*dc);
return 0;
}
*prev_bitmap = (HBITMAP)SelectObject(*dc, bitmap);
return 1;
}
/****************************************************************************
*
* ROUTINE : xprintf
*
* INPUTS : const PB_INSTANCE *ppbi : Pointer to decoder instance.
* long n_pixel : Offset into buffer to write text.
* const char *format : Format string for print.
* ... : Variable length argument list.
*
* OUTPUTS : None.
*
* RETURNS : int: Size (in bytes) of the formatted text.
*
* FUNCTION : Display a printf style message on the current video frame.
*
* SPECIAL NOTES : None.
*
****************************************************************************/
int onyx_xprintf(unsigned char *ppbuffer, long n_pixel, long n_size, long n_stride, const char *format, ...)
{
BOOL b_rc;
va_list arglist;
HFONT hfont, hfonto;
int rc = 0;
char sz_formatted[256] = "";
unsigned char *p_dest = &ppbuffer[n_pixel];
#ifdef _WIN32_WCE
// Set up temporary bitmap
HDC hdc_memory = NULL;
HBITMAP hbm_temp = NULL;
HBITMAP hbm_orig = NULL;
RECT rect;
// Copy bitmap to video frame
long x;
long y;
// Format text
va_start(arglist, format);
_vsnprintf(sz_formatted, sizeof(sz_formatted), format, arglist);
va_end(arglist);
rect.left = 0;
rect.top = 0;
rect.right = 8 * strlen(sz_formatted);
rect.bottom = 8;
hdc_memory = create_compatible_dc(NULL);
if (hdc_memory == NULL)
goto Exit;
hbm_temp = create_bitmap(rect.right, rect.bottom, 1, 1, NULL);
if (hbm_temp == NULL)
goto Exit;
hbm_orig = (HBITMAP)(select_object(hdc_memory, hbm_temp));
if (!hbm_orig)
goto Exit;
// Write text into bitmap
// font?
hfont = create_font(8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, VARIABLE_PITCH | FF_SWISS, "");
if (hfont == NULL)
goto Exit;
hfonto = (HFONT)(select_object(hdc_memory, hbm_temp));
if (!hfonto)
goto Exit;
select_object(hdc_memory, hfont);
set_text_color(hdc_memory, 1);
set_bk_color(hdc_memory, 0);
set_bk_mode(hdc_memory, TRANSPARENT);
b_rc = bit_blt(hdc_memory, rect.left, rect.top, rect.right, rect.bottom, hdc_memory, rect.left, rect.top, BLACKNESS);
if (!b_rc)
goto Exit;
b_rc = ext_text_out(hdc_memory, 0, 0, ETO_CLIPPED, &rect, sz_formatted, strlen(sz_formatted), NULL);
if (!b_rc)
goto Exit;
for (y = rect.top; y < rect.bottom; ++y)
{
for (x = rect.left; x < rect.right; ++x)
{
if (get_pixel(hdc_memory, x, rect.bottom - 1 - y))
p_dest[x] = 255;
}
p_dest += n_stride;
}
rc = strlen(sz_formatted);
Exit:
if (hbm_temp != NULL)
{
if (hbm_orig != NULL)
{
select_object(hdc_memory, hbm_orig);
}
delete_object(hbm_temp);
}
if (hfont != NULL)
{
if (hfonto != NULL)
select_object(hdc_memory, hfonto);
delete_object(hfont);
}
if (hdc_memory != NULL)
delete_dc(hdc_memory);
hdc_memory = 0;
#endif
return rc;
}
RedPixmapSw::RedPixmapSw(int width, int height, RedDrawable::Format format,
bool top_bottom, RedWindow *win)
: RedPixmap(width, height, format, top_bottom)
{
DWORD *pixel_format;
ASSERT(format == RedDrawable::ARGB32 || format == RedDrawable::RGB32
|| format == RedDrawable::RGB16_555 || format == RedDrawable::RGB16_565
|| format == RedDrawable::A1);
ASSERT(sizeof(RedPixmap_p) <= PIXELES_SOURCE_OPAQUE_SIZE);
struct {
BITMAPINFO inf;
RGBQUAD palette[255];
} bitmap_info;
memset(&bitmap_info, 0, sizeof(bitmap_info));
bitmap_info.inf.bmiHeader.biSize = sizeof(bitmap_info.inf.bmiHeader);
bitmap_info.inf.bmiHeader.biWidth = _width;
bitmap_info.inf.bmiHeader.biHeight = top_bottom ? -_height : _height;
/*#ifdef USE_OGL
// -----------------------------------------------------------------------------
// ensure valid access to additional stride.
// apparently glReadPixels validate ((ptr of last line) + GL_PACK_ROW_LENGTH + 1).
// seen on "ATI Radeon HD 2400 PRO" "2.0.6479 Release"
if (top_bottom) {
bitmap_info.inf.bmiHeader.biHeight--;
} else {
bitmap_info.inf.bmiHeader.biHeight++;
}
//------------------------------------------------------------------------------
#endif*/
bitmap_info.inf.bmiHeader.biPlanes = 1;
bitmap_info.inf.bmiHeader.biBitCount = RedDrawable::format_to_bpp(format);
if (format == RedDrawable::RGB16_565) {
bitmap_info.inf.bmiHeader.biCompression = BI_BITFIELDS;
} else {
bitmap_info.inf.bmiHeader.biCompression = BI_RGB;
}
switch (format) {
case RedDrawable::A1:
bitmap_info.inf.bmiColors[0].rgbRed = 0;
bitmap_info.inf.bmiColors[0].rgbGreen = 0;
bitmap_info.inf.bmiColors[0].rgbBlue = 0;
bitmap_info.inf.bmiColors[1].rgbRed = 0xff;
bitmap_info.inf.bmiColors[1].rgbGreen = 0xff;
bitmap_info.inf.bmiColors[1].rgbBlue = 0xff;
break;
case RedDrawable::RGB16_565:
pixel_format = (DWORD *)bitmap_info.inf.bmiColors;
pixel_format[0] = 0xf800;
pixel_format[1] = 0x07e0;
pixel_format[2] = 0x001f;
break;
}
AutoDC dc(create_compatible_dc());
AutoGDIObject bitmap(CreateDIBSection(dc.get(), &bitmap_info.inf, 0,
(VOID **)&_data, NULL, 0));
if (!bitmap.valid()) {
THROW("create compatible bitmap failed");
}
/*#ifdef USE_OGL
SetWindowOrgEx(dc.get(), 0, -1, NULL); // compensate for one pad line
#endif*/
((RedPixmap_p*)get_opaque())->prev_bitmap = (HBITMAP)SelectObject(dc.get(), bitmap.release());
((RedPixmap_p*)get_opaque())->pixels_source_p.dc = dc.release();
}
