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mirror of https://github.com/FunkyFr3sh/cnc-ddraw.git synced 2025-03-15 06:04:49 +01:00

screenshots in .bmp format without libpng

This commit is contained in:
FunkyFr3sh 2018-10-24 09:01:24 +02:00
parent 4814054df5
commit 4fe2bf7c99
3 changed files with 103 additions and 9 deletions

View File

@ -36,9 +36,7 @@ void mouse_lock();
void mouse_unlock();
/* from screenshot.c */
#ifdef HAVE_LIBPNG
BOOL screenshot(struct IDirectDrawSurfaceImpl *);
#endif
IDirectDrawImpl *ddraw = NULL;
@ -761,7 +759,7 @@ LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
return 0;
}
}
#ifdef HAVE_LIBPNG
if(wParam == VK_CONTROL || wParam == ddraw->screenshotKey)
{
if(GetAsyncKeyState(VK_CONTROL) & 0x8000 && GetAsyncKeyState(ddraw->screenshotKey) & 0x8000)
@ -770,16 +768,13 @@ LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
return 0;
}
}
#endif
break;
#ifdef HAVE_LIBPNG
case WM_KEYUP:
if (wParam == VK_SNAPSHOT)
screenshot(ddraw->primary);
break;
#endif
/* button up messages reactivate cursor lock */

View File

@ -13,9 +13,6 @@
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifdef HAVE_LIBPNG
#include <windows.h>
#include <stdio.h>
#include <ctype.h>
@ -24,6 +21,102 @@
#include "palette.h"
#include "surface.h"
#ifndef HAVE_LIBPNG
//https://docs.microsoft.com/en-us/windows/desktop/gdi/storing-an-image
BOOL screenshot(struct IDirectDrawSurfaceImpl *src)
{
HANDLE hf; // file handle
BITMAPFILEHEADER hdr; // bitmap file-header
PBITMAPINFOHEADER pbih; // bitmap info-header
LPBYTE lpBits; // memory pointer
DWORD dwTotal; // total count of bytes
DWORD cb; // incremental count of bytes
BYTE *hp; // byte pointer
DWORD dwTmp;
int i;
char title[128];
char filename[128];
char str_time[64];
time_t t = time(NULL);
BOOL result = TRUE;
strncpy(title, ddraw->title, sizeof(ddraw->title));
for (i = 0; i<strlen(title); i++) {
if (title[i] == ' ')
{
title[i] = '_';
}
else
{
title[i] = tolower(title[i]);
}
}
strftime(str_time, 64, "%Y-%m-%d-%H_%M_%S", localtime(&t));
_snprintf(filename, 128, "%s-%s.bmp", title, str_time);
pbih = (PBITMAPINFOHEADER)src->bmi;
lpBits = (LPBYTE)src->surface;
if (!lpBits)
return FALSE;
// Create the .BMP file.
hf = CreateFile(filename,
GENERIC_READ | GENERIC_WRITE,
(DWORD)0,
NULL,
CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
(HANDLE)NULL);
if (hf == INVALID_HANDLE_VALUE)
return FALSE;
hdr.bfType = 0x4d42; // 0x42 = "B" 0x4d = "M"
// Compute the size of the entire file.
hdr.bfSize = (DWORD)(sizeof(BITMAPFILEHEADER) +
pbih->biSize + pbih->biClrUsed
* sizeof(RGBQUAD) + pbih->biSizeImage);
hdr.bfReserved1 = 0;
hdr.bfReserved2 = 0;
// Compute the offset to the array of color indices.
hdr.bfOffBits = (DWORD) sizeof(BITMAPFILEHEADER) +
pbih->biSize + pbih->biClrUsed
* sizeof(RGBQUAD);
// Copy the BITMAPFILEHEADER into the .BMP file.
if (!WriteFile(hf, (LPVOID)&hdr, sizeof(BITMAPFILEHEADER),
(LPDWORD)&dwTmp, NULL))
{
result = FALSE;
}
// Copy the BITMAPINFOHEADER and RGBQUAD array into the file.
if (!WriteFile(hf, (LPVOID)pbih, sizeof(BITMAPINFOHEADER)
+ pbih->biClrUsed * sizeof(RGBQUAD),
(LPDWORD)&dwTmp, (NULL)))
result = FALSE;
// Copy the array of color indices into the .BMP file.
dwTotal = cb = pbih->biSizeImage;
hp = lpBits;
if (!WriteFile(hf, (LPSTR)hp, (int)cb, (LPDWORD)&dwTmp, NULL))
result = FALSE;
// Close the .BMP file.
if (!CloseHandle(hf))
result = FALSE;
return result;
}
#else
#include <png.h>
BOOL screenshot(struct IDirectDrawSurfaceImpl *src)

View File

@ -560,6 +560,12 @@ HRESULT __stdcall ddraw_CreateSurface(IDirectDrawImpl *This, LPDDSURFACEDESC lpD
Surface->bmi->bmiHeader.biBitCount = Surface->bpp;
Surface->bmi->bmiHeader.biCompression = BI_RGB;
WORD cClrBits = (WORD)(Surface->bmi->bmiHeader.biPlanes * Surface->bmi->bmiHeader.biBitCount);
if (cClrBits < 24)
Surface->bmi->bmiHeader.biClrUsed = (1 << cClrBits);
Surface->bmi->bmiHeader.biSizeImage = ((Surface->width * cClrBits + 31) & ~31) / 8 * Surface->height;
int i;
for (i = 0; i < 256; i++)
{