nishi/milsko
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maskblt

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git-svn-id: http://svn2.nishi.boats/svn/milsko/trunk@350 b9cfdab3-6d41-4d17-bbe4-086880011989
This commit is contained in:
NishiOwO
2025-10-16 06:55:34 +00:00
parent b04e1a76a6
commit 6e4f7ff6ef
3 changed files with 22 additions and 8 deletions
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27
src/backend/gdi.c
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@@ -335,8 +335,10 @@ MwLLPixmap MwLLCreatePixmap(MwLL handle, unsigned char* data, int width, int hei
MwLLPixmap r = malloc(sizeof(*r)); MwLLPixmap r = malloc(sizeof(*r));
HDC dc = GetDC(handle->hWnd); HDC dc = GetDC(handle->hWnd);
BITMAPINFOHEADER bmih; BITMAPINFOHEADER bmih;
RGBQUAD* quad = NULL; RGBQUAD* quad;
int y, x; int y, x;
int w = (width + (16 - (width % 16))) / 8;
WORD* words = malloc(w * height);
r->width = width; r->width = width;
r->height = height; r->height = height;
@@ -355,16 +357,27 @@ MwLLPixmap MwLLCreatePixmap(MwLL handle, unsigned char* data, int width, int hei
r->hBitmap = CreateDIBSection(dc, (BITMAPINFO*)&bmih, DIB_RGB_COLORS, (void**)&quad, NULL, (DWORD)0); r->hBitmap = CreateDIBSection(dc, (BITMAPINFO*)&bmih, DIB_RGB_COLORS, (void**)&quad, NULL, (DWORD)0);
memset(words, 0, w * height);
for(y = 0; y < height; y++) { for(y = 0; y < height; y++) {
BYTE* l = (BYTE*)&words[y * (w / 2)];
for(x = 0; x < width; x++) { for(x = 0; x < width; x++) {
RGBQUAD* q = &quad[y * width + x]; RGBQUAD* q = &quad[y * width + x];
unsigned char* px = &data[(y * width + x) * 4]; unsigned char* px = &data[(y * width + x) * 4];
q->rgbRed = px[0];
q->rgbGreen = px[1]; q->rgbRed = px[0];
q->rgbBlue = px[2]; q->rgbGreen = px[1];
q->rgbBlue = px[2];
if(px[3]) {
l[x / 8] |= 1 << (7 - (x % 8));
}
} }
} }
r->hMask = CreateBitmap(width, height, 1, 1, words);
free(words);
ReleaseDC(handle->hWnd, dc); ReleaseDC(handle->hWnd, dc);
return r; return r;
@@ -382,7 +395,7 @@ void MwLLDrawPixmap(MwLL handle, MwRect* rect, MwLLPixmap pixmap) {
SelectObject(hmdc, pixmap->hBitmap); SelectObject(hmdc, pixmap->hBitmap);
SetStretchBltMode(handle->hDC, HALFTONE); SetStretchBltMode(handle->hDC, HALFTONE);
StretchBlt(handle->hDC, rect->x, rect->y, rect->width, rect->height, hmdc, 0, 0, pixmap->width, pixmap->height, SRCCOPY); MaskBlt(handle->hDC, rect->x, rect->y, rect->width, rect->height, hmdc, 0, 0, pixmap->hMask, 0, 0, MAKEROP4(SRCCOPY, 0x00AA0029));
DeleteDC(hmdc); DeleteDC(hmdc);
} }
@@ -470,13 +483,13 @@ void MwLLDetach(MwLL handle, MwPoint* point) {
GetClientRect(handle->hWnd, &rc2); GetClientRect(handle->hWnd, &rc2);
SetWindowLongPtr(handle->hWnd, GWL_STYLE, (LPARAM)WS_OVERLAPPEDWINDOW | WS_VISIBLE); SetWindowLongPtr(handle->hWnd, GWL_STYLE, (LPARAM)WS_OVERLAPPEDWINDOW);
SetParent(handle->hWnd, NULL); SetParent(handle->hWnd, NULL);
rc.left += point->x; rc.left += point->x;
rc.top += point->y; rc.top += point->y;
AdjustWindowRect(&rc2, WS_OVERLAPPEDWINDOW | WS_VISIBLE, FALSE); AdjustWindowRect(&rc2, WS_OVERLAPPEDWINDOW, FALSE);
rc2.right -= rc2.left; rc2.right -= rc2.left;
rc2.bottom -= rc2.top; rc2.bottom -= rc2.top;

1
src/backend/gdi.h
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@@ -45,6 +45,7 @@ struct _MwLLPixmap {
int height; int height;
HBITMAP hBitmap; HBITMAP hBitmap;
HBITMAP hMask;
}; };
#endif #endif

2
src/draw.c
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@@ -597,7 +597,7 @@ MwLLPixmap MwLoadImage(MwWidget handle, const char* path) {
} }
MwLLPixmap MwLoadRaw(MwWidget handle, unsigned char* rgb, int width, int height) { MwLLPixmap MwLoadRaw(MwWidget handle, unsigned char* rgb, int width, int height) {
MwLLPixmap px; MwLLPixmap px;
px = MwLLCreatePixmap(handle->lowlevel, rgb, width, height); px = MwLLCreatePixmap(handle->lowlevel, rgb, width, height);