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#include "evas_common.h"
#include "evas_engine.h"
DDraw_Output_Buffer *
evas_software_ddraw_output_buffer_new(HWND window,
LPDIRECTDRAW object,
LPDIRECTDRAWSURFACE surface_primary,
LPDIRECTDRAWSURFACE surface_back,
LPDIRECTDRAWSURFACE surface_source,
int width,
int height)
{
DDSURFACEDESC surface_desc;
DDraw_Output_Buffer *ddob;
ddob = (DDraw_Output_Buffer *)calloc(1, sizeof(DDraw_Output_Buffer));
if (!ddob) return NULL;
ddob->dd.window = window;
ddob->dd.object = object;
ddob->dd.surface_primary = surface_primary;
ddob->dd.surface_back = surface_back;
ddob->dd.surface_source = surface_source;
ddob->width = width;
ddob->height = height;
ddob->pitch = width * 2;
ZeroMemory(&surface_desc, sizeof(surface_desc));
surface_desc.dwSize = sizeof(surface_desc);
if (FAILED(ddob->dd.surface_source->Lock(NULL,
&surface_desc,
DDLOCK_WAIT | DDLOCK_SURFACEMEMORYPTR,
NULL)))
{
free(ddob);
return NULL;
}
ddob->data = (DATA16 *)surface_desc.lpSurface;
if (FAILED(ddob->dd.surface_source->Unlock(NULL)))
{
free(ddob);
return NULL;
}
if (ddob->im)
evas_cache_image_drop(&ddob->im->cache_entry);
ddob->im = (Soft16_Image *) evas_cache_image_data(evas_common_soft16_image_cache_get(), width, height, (DATA32 *) ddob->data, 0, EVAS_COLORSPACE_RGB565_A5P);
if (ddob->im)
ddob->im->stride = ddob->pitch;
return ddob;
}
void
evas_software_ddraw_output_buffer_free(DDraw_Output_Buffer *ddob, int sync)
{
free(ddob);
}
void
evas_software_ddraw_output_buffer_paste(DDraw_Output_Buffer *ddob)
{
RECT dst_rect;
RECT src_rect;
POINT p;
SetRect(&src_rect, 0, 0, ddob->width, ddob->height);
if (FAILED(ddob->dd.surface_back->BltFast(0, 0,
ddob->dd.surface_source,
&src_rect,
DDBLTFAST_NOCOLORKEY | DDBLTFAST_WAIT)))
return;
p.x = 0;
p.y = 0;
ClientToScreen(ddob->dd.window, &p);
GetClientRect(ddob->dd.window, &dst_rect);
OffsetRect(&dst_rect, p.x, p.y);
ddob->dd.surface_primary->Blt(&dst_rect,
ddob->dd.surface_back, &src_rect,
DDBLT_WAIT, NULL);
}
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