gitea/SDL3_fork
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Removed temporary memory from the API

Browse Source 
It was intended to make the API easier to use, but various automatic garbage collection all had flaws, and making the application periodically clean up temporary memory added cognitive load to using the API, and in many cases was it was difficult to restructure threaded code to handle this.

So, we're largely going back to the original system, where the API returns allocated results and you free them.

In addition, to solve the problems we originally wanted temporary memory for:
* Short strings with a finite count, like device names, get stored in a per-thread string pool.
* Events continue to use temporary memory internally, which is cleaned up on the next event processing cycle.
This commit is contained in:
Sam Lantinga
2024-07-26 18:57:18 -07:00
parent 21411c6418
commit 4f55271571
100 changed files with 737 additions and 853 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
src/camera/SDL_camera.c
View File

@@ -66,14 +66,14 @@ int SDL_GetNumCameraDrivers(void)
const char *SDL_GetCameraDriver(int index)
{
if (index >= 0 && index < SDL_GetNumCameraDrivers()) {
return SDL_CreateTemporaryString(bootstrap[index]->name);
return bootstrap[index]->name;
}
return NULL;
}
const char *SDL_GetCurrentCameraDriver(void)
{
return SDL_CreateTemporaryString(camera_driver.name);
return camera_driver.name;
}
char *SDL_GetCameraThreadName(SDL_Camera *device, char *buf, size_t buflen)
@@ -675,7 +675,7 @@ const char *SDL_GetCameraName(SDL_CameraID instance_id)
const char *retval = NULL;
SDL_Camera *device = ObtainPhysicalCamera(instance_id);
if (device) {
retval = SDL_CreateTemporaryString(device->name);
retval = SDL_GetPersistentString(device->name);
ReleaseCamera(device);
}
return retval;
@@ -693,7 +693,7 @@ SDL_CameraPosition SDL_GetCameraPosition(SDL_CameraID instance_id)
}
const SDL_CameraID *SDL_GetCameras(int *count)
SDL_CameraID *SDL_GetCameras(int *count)
{
int dummy_count;
if (!count) {
@@ -729,10 +729,10 @@ const SDL_CameraID *SDL_GetCameras(int *count)
*count = num_devices;
return SDL_FreeLater(retval);
return retval;
}
const SDL_CameraSpec * const *SDL_GetCameraSupportedFormats(SDL_CameraID instance_id, int *count)
SDL_CameraSpec **SDL_GetCameraSupportedFormats(SDL_CameraID instance_id, int *count)
{
if (count) {
*count = 0;
@@ -761,7 +761,7 @@ const SDL_CameraSpec * const *SDL_GetCameraSupportedFormats(SDL_CameraID instanc
ReleaseCamera(device);
return SDL_FreeLater(retval);
return retval;
}