Nyaaori/gamescope
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Use PNG for screenshots

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Closes: #291
This commit is contained in:
Joshua Ashton 2021-10-12 08:30:19 +01:00 committed by Simon Ser
parent f3865a73bd
commit dd5de82c7e
2 changed files with 22 additions and 12 deletions
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2
README.md
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@ -34,7 +34,7 @@ meson install -C build/ --skip-subprojects
* **Super + F** : Toggle fullscreen
* **Super + N** : Toggle integer scaling
* **Super + S** : Take screenshot (currently goes to `/tmp/gamescope_$DATE.bmp`)
* **Super + S** : Take screenshot (currently goes to `/tmp/gamescope_$DATE.png`)
## Examples

32
src/steamcompmgr.cpp
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@ -81,7 +81,9 @@
#endif
#define STB_IMAGE_IMPLEMENTATION
#define STB_IMAGE_WRITE_IMPLEMENTATION
#include <stb_image.h>
#include <stb_image_write.h>
#define GPUVIS_TRACE_IMPLEMENTATION
#include "gpuvis_trace_utils.h"
@ -1420,22 +1422,30 @@ paint_all(Display *dpy, MouseCursor *cursor)
assert( pCaptureTexture != nullptr );
assert( pCaptureTexture->m_format == VK_FORMAT_B8G8R8A8_UNORM );
uint32_t redMask = 0x00ff0000;
uint32_t greenMask = 0x0000ff00;
uint32_t blueMask = 0x000000ff;
uint32_t alphaMask = 0;
const uint8_t *mappedData = reinterpret_cast<const uint8_t *>(pCaptureTexture->m_pMappedData);
SDL_Surface *pSDLSurface = SDL_CreateRGBSurfaceFrom( pCaptureTexture->m_pMappedData, currentOutputWidth, currentOutputHeight, 32, pCaptureTexture->m_unRowPitch, redMask, greenMask, blueMask, alphaMask );
static char pTimeBuffer[1024];
// Make our own copy of the image to remove the alpha channel.
auto imageData = std::vector<uint8_t>(currentOutputWidth * currentOutputHeight * 4);
const uint32_t comp = 4;
const uint32_t pitch = currentOutputWidth * comp;
for (uint32_t y = 0; y < currentOutputHeight; y++)
{
for (uint32_t x = 0; x < currentOutputWidth; x++)
{
// BGR...
imageData[y * pitch + x * comp + 0] = mappedData[y * pCaptureTexture->m_unRowPitch + x * comp + 2];
imageData[y * pitch + x * comp + 1] = mappedData[y * pCaptureTexture->m_unRowPitch + x * comp + 1];
imageData[y * pitch + x * comp + 2] = mappedData[y * pCaptureTexture->m_unRowPitch + x * comp + 0];
imageData[y * pitch + x * comp + 3] = 255;
}
}
char pTimeBuffer[1024];
time_t currentTime = time(0);
struct tm *localTime = localtime( &currentTime );
strftime( pTimeBuffer, sizeof( pTimeBuffer ), "/tmp/gamescope_%Y-%m-%d_%H-%M-%S.bmp", localTime );
strftime( pTimeBuffer, sizeof( pTimeBuffer ), "/tmp/gamescope_%Y-%m-%d_%H-%M-%S.png", localTime );
SDL_SaveBMP( pSDLSurface, pTimeBuffer );
SDL_FreeSurface( pSDLSurface );
stbi_write_png(pTimeBuffer, currentOutputWidth, currentOutputHeight, 4, imageData.data(), pitch);
xwm_log.infof("Screenshot saved to %s", pTimeBuffer);
takeScreenshot = false;