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git-svn-id: http://svn2.nishi.boats/svn/milsko/trunk@69 b9cfdab3-6d41-4d17-bbe4-086880011989
This commit is contained in:
NishiOwO
2025-09-30 00:52:43 +00:00
parent 99c28db60d
commit e230b5441c
9 changed files with 172 additions and 12 deletions
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57
src/gdi.c
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@@ -45,6 +45,7 @@ static LRESULT CALLBACK wndproc(HWND hWnd, UINT msg, WPARAM wp, LPARAM lp) {
} else if(msg == WM_SIZE) {
MwLLDispatch(u->ll, resize);
} else if(msg == WM_ERASEBKGND) {
return 1;
} else if(msg == WM_NCHITTEST) {
return HTCLIENT;
} else if(msg == WM_DESTROY) {
@@ -210,3 +211,59 @@ void MwLLNextEvent(MwLL handle) {
void MwLLSleep(int ms) {
Sleep(ms);
}
MwLLPixmap MwLLCreatePixmap(MwLL handle, unsigned char* data, int width, int height) {
MwLLPixmap r = malloc(sizeof(*r));
HDC dc = GetDC(handle->hWnd);
BITMAPINFOHEADER bmih;
RGBQUAD* quad = NULL;
int y, x;
r->width = width;
r->height = height;
bmih.biSize = sizeof(bmih);
bmih.biWidth = width;
bmih.biHeight = -(LONG)height;
bmih.biPlanes = 1;
bmih.biBitCount = 32;
bmih.biCompression = BI_RGB;
bmih.biSizeImage = 0;
bmih.biXPelsPerMeter = 0;
bmih.biYPelsPerMeter = 0;
bmih.biClrUsed = 0;
bmih.biClrImportant = 0;
r->hBitmap = CreateDIBSection(dc, (BITMAPINFO*)&bmih, DIB_RGB_COLORS, (void**)&quad, NULL, (DWORD)0);
for(y = 0; y < height; y++) {
for(x = 0; x < width; x++) {
RGBQUAD* q = &quad[y * width + x];
unsigned char* px = &data[(y * width + x) * 3];
q->rgbRed = px[0];
q->rgbGreen = px[1];
q->rgbBlue = px[2];
}
}
ReleaseDC(handle->hWnd, dc);
return r;
}
void MwLLDestroyPixmap(MwLLPixmap pixmap) {
DeleteObject(pixmap->hBitmap);
free(pixmap);
}
void MwLLDrawPixmap(MwLL handle, MwRect* rect, MwLLPixmap pixmap) {
HDC hmdc = CreateCompatibleDC(handle->hDC);
SelectObject(hmdc, pixmap->hBitmap);
SetStretchBltMode(handle->hDC, HALFTONE);
StretchBlt(handle->hDC, rect->x, rect->y, rect->width, rect->height, hmdc, 0, 0, pixmap->width, pixmap->height, SRCCOPY);
DeleteDC(hmdc);
}