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Simplified SDL_SetProperty() and added SDL_SetPropertyWithCleanup()

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Most of the time people won't need to set a cleanup callback, so we can simplify the more commonly used API.
This commit is contained in:
Sam Lantinga
2023-11-07 12:33:43 -08:00
parent a1941fad6c
commit aea6e6de6f
16 changed files with 61 additions and 34 deletions
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23
include/SDL3/SDL_properties.h
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@@ -95,7 +95,23 @@ extern DECLSPEC void SDLCALL SDL_UnlockProperties(SDL_PropertiesID props);
/**
* Set a property on a set of properties
*
* By convention, the names of properties that SDL exposes on objects will start with "SDL.", and properties that SDL uses internally will start with "SDL.internal.". These should be considered read-only and should not be modified by applications.
* \param props the properties to modify
* \param name the name of the property to modify
* \param value the new value of the property, or NULL to delete the property
* \returns 0 on success or a negative error code on failure; call
* SDL_GetError() for more information.
*
* \threadsafety It is safe to call this function from any thread.
*
* \since This function is available since SDL 3.0.0.
*
* \sa SDL_GetProperty
* \sa SDL_SetPropertyWithCleanup
*/
extern DECLSPEC int SDLCALL SDL_SetProperty(SDL_PropertiesID props, const char *name, void *value);
/**
* Set a property on a set of properties with a cleanup function that is called when the property is deleted
*
* \param props the properties to modify
* \param name the name of the property to modify
@@ -111,12 +127,15 @@ extern DECLSPEC void SDLCALL SDL_UnlockProperties(SDL_PropertiesID props);
* \since This function is available since SDL 3.0.0.
*
* \sa SDL_GetProperty
* \sa SDL_SetProperty
*/
extern DECLSPEC int SDLCALL SDL_SetProperty(SDL_PropertiesID props, const char *name, void *value, void (SDLCALL *cleanup)(void *userdata, void *value), void *userdata);
extern DECLSPEC int SDLCALL SDL_SetPropertyWithCleanup(SDL_PropertiesID props, const char *name, void *value, void (SDLCALL *cleanup)(void *userdata, void *value), void *userdata);
/**
* Get a property on a set of properties
*
* By convention, the names of properties that SDL exposes on objects will start with "SDL.", and properties that SDL uses internally will start with "SDL.internal.". These should be considered read-only and should not be modified by applications.
*
* \param props the properties to query
* \param name the name of the property to query
* \returns the value of the property, or NULL if it is not set.

9
src/SDL_properties.c
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@@ -183,7 +183,12 @@ void SDL_UnlockProperties(SDL_PropertiesID props)
SDL_UnlockMutex(properties->lock);
}
int SDL_SetProperty(SDL_PropertiesID props, const char *name, void *value, void (SDLCALL *cleanup)(void *userdata, void *value), void *userdata)
int SDL_SetProperty(SDL_PropertiesID props, const char *name, void *value)
{
return SDL_SetPropertyWithCleanup(props, name, value, NULL, NULL);
}
int SDL_SetPropertyWithCleanup(SDL_PropertiesID props, const char *name, void *value, void (SDLCALL *cleanup)(void *userdata, void *value), void *userdata)
{
SDL_Properties *properties = NULL;
SDL_Property *property = NULL;
@@ -274,7 +279,7 @@ void *SDL_GetProperty(SDL_PropertiesID props, const char *name)
int SDL_ClearProperty(SDL_PropertiesID props, const char *name)
{
return SDL_SetProperty(props, name, NULL, NULL, NULL);
return SDL_SetProperty(props, name, NULL);
}
void SDL_DestroyProperties(SDL_PropertiesID props)

1
src/dynapi/SDL_dynapi.sym
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@@ -921,6 +921,7 @@ SDL3_0.0.0 {
SDL_RWvprintf;
SDL_AllocateEventMemory;
SDL_GetDisplayProperties;
SDL_SetPropertyWithCleanup;
# extra symbols go here (don't modify this line)
local: *;
};

1
src/dynapi/SDL_dynapi_overrides.h
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@@ -946,3 +946,4 @@
#define SDL_RWvprintf SDL_RWvprintf_REAL
#define SDL_AllocateEventMemory SDL_AllocateEventMemory_REAL
#define SDL_GetDisplayProperties SDL_GetDisplayProperties_REAL
#define SDL_SetPropertyWithCleanup SDL_SetPropertyWithCleanup_REAL

3
src/dynapi/SDL_dynapi_procs.h
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@@ -962,7 +962,7 @@ SDL_DYNAPI_PROC(IDXGIResource*,SDL_GetTextureDXGIResource,(SDL_Texture *a),(a),r
SDL_DYNAPI_PROC(SDL_PropertiesID,SDL_CreateProperties,(void),(),return)
SDL_DYNAPI_PROC(int,SDL_LockProperties,(SDL_PropertiesID a),(a),return)
SDL_DYNAPI_PROC(void,SDL_UnlockProperties,(SDL_PropertiesID a),(a),)
SDL_DYNAPI_PROC(int,SDL_SetProperty,(SDL_PropertiesID a, const char *b, void *c, void (SDLCALL *d)(void *userdata, void *value), void *e),(a,b,c,d,e),return)
SDL_DYNAPI_PROC(int,SDL_SetProperty,(SDL_PropertiesID a, const char *b, void *c),(a,b,c),return)
SDL_DYNAPI_PROC(void*,SDL_GetProperty,(SDL_PropertiesID a, const char *b),(a,b),return)
SDL_DYNAPI_PROC(void,SDL_DestroyProperties,(SDL_PropertiesID a),(a),)
SDL_DYNAPI_PROC(SDL_PropertiesID,SDL_GetAudioStreamProperties,(SDL_AudioStream *a),(a),return)
@@ -979,3 +979,4 @@ SDL_DYNAPI_PROC(int,SDL_EnterAppMainCallbacks,(int a, char *b[], SDL_AppInit_fun
SDL_DYNAPI_PROC(size_t,SDL_RWvprintf,(SDL_RWops *a, const char *b, va_list c),(a,b,c),return)
SDL_DYNAPI_PROC(void*,SDL_AllocateEventMemory,(size_t a),(a),return)
SDL_DYNAPI_PROC(SDL_PropertiesID,SDL_GetDisplayProperties,(SDL_DisplayID a),(a),return)
SDL_DYNAPI_PROC(int,SDL_SetPropertyWithCleanup,(SDL_PropertiesID a, const char *b, void *c, void (SDLCALL *d)(void *userdata, void *value), void *e),(a,b,c,d,e),return)

2
src/render/SDL_render.c
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@@ -929,7 +929,7 @@ SDL_Renderer *SDL_CreateRenderer(SDL_Window *window, const char *name, Uint32 fl
renderer->hidden = SDL_FALSE;
}
SDL_SetProperty(SDL_GetWindowProperties(window), SDL_WINDOWRENDERDATA, renderer, NULL, NULL);
SDL_SetProperty(SDL_GetWindowProperties(window), SDL_WINDOWRENDERDATA, renderer);
SDL_SetRenderViewport(renderer, NULL);

2
src/render/direct3d/SDL_render_d3d.c
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@@ -1714,7 +1714,7 @@ SDL_Renderer *D3D_CreateRenderer(SDL_Window *window, Uint32 flags)
data->drawstate.cliprect_enabled_dirty = SDL_TRUE;
data->drawstate.blend = SDL_BLENDMODE_INVALID;
SDL_SetProperty(SDL_GetRendererProperties(renderer), "SDL.renderer.d3d9.device", data->device, NULL, NULL);
SDL_SetProperty(SDL_GetRendererProperties(renderer), "SDL.renderer.d3d9.device", data->device);
return renderer;
}

2
src/render/direct3d11/SDL_render_d3d11.c
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@@ -668,7 +668,7 @@ static HRESULT D3D11_CreateDeviceResources(SDL_Renderer *renderer)
ID3D11DeviceContext_VSSetShader(data->d3dContext, data->vertexShader, NULL, 0);
ID3D11DeviceContext_VSSetConstantBuffers(data->d3dContext, 0, 1, &data->vertexShaderConstants);
SDL_SetProperty(SDL_GetRendererProperties(renderer), "SDL.renderer.d3d11.device", data->d3dDevice, NULL, NULL);
SDL_SetProperty(SDL_GetRendererProperties(renderer), "SDL.renderer.d3d11.device", data->d3dDevice);
done:
SAFE_RELEASE(d3dDevice);

2
src/render/direct3d12/SDL_render_d3d12.c
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@@ -1070,7 +1070,7 @@ static HRESULT D3D12_CreateDeviceResources(SDL_Renderer *renderer)
}
data->srvPoolHead = &data->srvPoolNodes[0];
SDL_SetProperty(SDL_GetRendererProperties(renderer), "SDL.renderer.d3d12.device", data->d3dDevice, NULL, NULL);
SDL_SetProperty(SDL_GetRendererProperties(renderer), "SDL.renderer.d3d12.device", data->d3dDevice);
done:
SAFE_RELEASE(d3dDevice);

2
src/video/SDL_video.c
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@@ -280,7 +280,7 @@ static int SDL_CreateWindowTexture(SDL_VideoDevice *_this, SDL_Window *window, U
SDL_DestroyRenderer(renderer);
return SDL_OutOfMemory();
}
SDL_SetProperty(props, SDL_WINDOWTEXTUREDATA, data, SDL_CleanupWindowTextureData, NULL);
SDL_SetPropertyWithCleanup(props, SDL_WINDOWTEXTUREDATA, data, SDL_CleanupWindowTextureData, NULL);
data->renderer = renderer;
} else {

2
src/video/dummy/SDL_nullframebuffer.c
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@@ -48,7 +48,7 @@ int SDL_DUMMY_CreateWindowFramebuffer(SDL_VideoDevice *_this, SDL_Window *window
}
/* Save the info and return! */
SDL_SetProperty(SDL_GetWindowProperties(window), DUMMY_SURFACE, surface, CleanupSurface, NULL);
SDL_SetPropertyWithCleanup(SDL_GetWindowProperties(window), DUMMY_SURFACE, surface, CleanupSurface, NULL);
*format = surface_format;
*pixels = surface->pixels;
*pitch = surface->pitch;

2
src/video/n3ds/SDL_n3dsframebuffer.c
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@@ -57,7 +57,7 @@ int SDL_N3DS_CreateWindowFramebuffer(SDL_VideoDevice *_this, SDL_Window *window,
return SDL_OutOfMemory();
}
SDL_SetProperty(SDL_GetWindowProperties(window), N3DS_SURFACE, framebuffer, CleanupSurface, NULL);
SDL_SetPropertyWithCleanup(SDL_GetWindowProperties(window), N3DS_SURFACE, framebuffer, CleanupSurface, NULL);
*format = FRAMEBUFFER_FORMAT;
*pixels = framebuffer->pixels;
*pitch = framebuffer->pitch;

2
src/video/offscreen/SDL_offscreenframebuffer.c
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@@ -48,7 +48,7 @@ int SDL_OFFSCREEN_CreateWindowFramebuffer(SDL_VideoDevice *_this, SDL_Window *wi
}
/* Save the info and return! */
SDL_SetProperty(SDL_GetWindowProperties(window), OFFSCREEN_SURFACE, surface, CleanupSurface, NULL);
SDL_SetPropertyWithCleanup(SDL_GetWindowProperties(window), OFFSCREEN_SURFACE, surface, CleanupSurface, NULL);
*format = surface_format;
*pixels = surface->pixels;
*pitch = surface->pitch;

18
test/testautomation_properties.c
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@@ -26,7 +26,7 @@ static int properties_testBasic(void *arg)
for (i = 0; i < 10; ++i) {
SDL_snprintf(key, SDL_arraysize(key), "%c", 'a' + i);
SDL_snprintf(expected_value, SDL_arraysize(expected_value), "%c", 'a' + i);
result = SDL_SetProperty(props, key, expected_value, NULL, NULL);
result = SDL_SetProperty(props, key, expected_value);
SDLTest_AssertPass("Call to SDL_SetProperty()");
SDLTest_AssertCheck(result == 0,
"Verify property value was set, got: %d", result);
@@ -38,7 +38,7 @@ static int properties_testBasic(void *arg)
for (i = 0; i < 10; ++i) {
SDL_snprintf(key, SDL_arraysize(key), "%c", 'a' + i);
result = SDL_SetProperty(props, key, NULL, NULL, NULL);
result = SDL_SetProperty(props, key, NULL);
SDLTest_AssertPass("Call to SDL_SetProperty(NULL)");
SDLTest_AssertCheck(result == 0,
"Verify property value was set, got: %d", result);
@@ -71,8 +71,8 @@ static int properties_testCleanup(void *arg)
SDLTest_AssertPass("Call to SDL_SetProperty(cleanup)");
count = 0;
SDL_SetProperty(props, "a", "0", cleanup, &count);
SDL_SetProperty(props, "a", NULL, cleanup, &count);
SDL_SetPropertyWithCleanup(props, "a", "0", cleanup, &count);
SDL_SetPropertyWithCleanup(props, "a", NULL, cleanup, &count);
SDLTest_AssertCheck(count == 1,
"Verify cleanup for deleting property, got %d, expected 1", count);
@@ -81,7 +81,7 @@ static int properties_testCleanup(void *arg)
for (i = 0; i < 10; ++i) {
SDL_snprintf(key, SDL_arraysize(key), "%c", 'a' + i);
SDL_snprintf(expected_value, SDL_arraysize(expected_value), "%c", 'a' + i);
SDL_SetProperty(props, key, expected_value, cleanup, &count);
SDL_SetPropertyWithCleanup(props, key, expected_value, cleanup, &count);
}
SDL_DestroyProperties(props);
SDLTest_AssertCheck(count == 10,
@@ -104,11 +104,11 @@ static int properties_thread(void *arg)
while (!data->done) {
SDL_LockProperties(data->props);
SDL_SetProperty(data->props, "a", "thread_loop", NULL, NULL);
SDL_SetProperty(data->props, "a", "thread_loop");
SDL_UnlockProperties(data->props);
}
SDL_LockProperties(data->props);
SDL_SetProperty(data->props, "a", "thread_done", NULL, NULL);
SDL_SetProperty(data->props, "a", "thread_done");
SDL_UnlockProperties(data->props);
return 0;
}
@@ -122,7 +122,7 @@ static int properties_testLocking(void *arg)
data.done = SDL_FALSE;
data.props = SDL_CreateProperties();
SDLTest_AssertPass("Setting property to 'init'");
SDL_SetProperty(data.props, "a", "init", NULL, NULL);
SDL_SetProperty(data.props, "a", "init");
thread = SDL_CreateThread(properties_thread, "properties_thread", &data);
if (thread) {
SDLTest_AssertPass("Waiting for property to change to 'thread_loop'");
@@ -142,7 +142,7 @@ static int properties_testLocking(void *arg)
SDLTest_AssertPass("Setting property to 'main'");
SDL_LockProperties(data.props);
SDL_SetProperty(data.props, "a", "main", NULL, NULL);
SDL_SetProperty(data.props, "a", "main");
SDL_Delay(100);
value = SDL_GetProperty(data.props, "a");
SDLTest_AssertCheck(value && SDL_strcmp((const char *)value, "main") == 0,

22
test/testautomation_video.c
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@@ -1498,7 +1498,7 @@ static int video_getSetWindowData(void *arg)
SDLTest_AssertCheck(SDL_strcmp(referenceName, name) == 0, "Validate that name was not changed, expected: %s, got: %s", referenceName, name);
/* Set data */
SDL_SetProperty(SDL_GetWindowProperties(window), name, userdata, NULL, NULL);
SDL_SetProperty(SDL_GetWindowProperties(window), name, userdata);
SDLTest_AssertPass("Call to SDL_SetWindowData(...%s,%s)", name, userdata);
SDLTest_AssertCheck(SDL_strcmp(referenceName, name) == 0, "Validate that name was not changed, expected: %s, got: %s", referenceName, name);
SDLTest_AssertCheck(SDL_strcmp(referenceUserdata, userdata) == 0, "Validate that userdata was not changed, expected: %s, got: %s", referenceUserdata, userdata);
@@ -1514,7 +1514,7 @@ static int video_getSetWindowData(void *arg)
/* Set data again twice */
for (iteration = 1; iteration <= 2; iteration++) {
SDL_SetProperty(SDL_GetWindowProperties(window), name, userdata, NULL, NULL);
SDL_SetProperty(SDL_GetWindowProperties(window), name, userdata);
SDLTest_AssertPass("Call to SDL_SetWindowData(...%s,%s) [iteration %d]", name, userdata, iteration);
SDLTest_AssertCheck(SDL_strcmp(referenceName, name) == 0, "Validate that name was not changed, expected: %s, got: %s", referenceName, name);
SDLTest_AssertCheck(SDL_strcmp(referenceUserdata, userdata) == 0, "Validate that userdata was not changed, expected: %s, got: %s", referenceUserdata, userdata);
@@ -1527,14 +1527,14 @@ static int video_getSetWindowData(void *arg)
SDLTest_AssertCheck(SDL_strcmp(referenceName, name) == 0, "Validate that name was not changed, expected: %s, got: %s", referenceName, name);
/* Set data with new data */
SDL_SetProperty(SDL_GetWindowProperties(window), name, userdata2, NULL, NULL);
SDL_SetProperty(SDL_GetWindowProperties(window), name, userdata2);
SDLTest_AssertPass("Call to SDL_SetWindowData(...%s,%s) [new userdata]", name, userdata2);
SDLTest_AssertCheck(SDL_strcmp(referenceName, name) == 0, "Validate that name was not changed, expected: %s, got: %s", referenceName, name);
SDLTest_AssertCheck(SDL_strcmp(referenceUserdata, userdata) == 0, "Validate that userdata was not changed, expected: %s, got: %s", referenceUserdata, userdata);
SDLTest_AssertCheck(SDL_strcmp(referenceUserdata2, userdata2) == 0, "Validate that userdata2 was not changed, expected: %s, got: %s", referenceUserdata2, userdata2);
/* Set data with new data again */
SDL_SetProperty(SDL_GetWindowProperties(window), name, userdata2, NULL, NULL);
SDL_SetProperty(SDL_GetWindowProperties(window), name, userdata2);
SDLTest_AssertPass("Call to SDL_SetWindowData(...%s,%s) [new userdata again]", name, userdata2);
SDLTest_AssertCheck(SDL_strcmp(referenceName, name) == 0, "Validate that name was not changed, expected: %s, got: %s", referenceName, name);
SDLTest_AssertCheck(SDL_strcmp(referenceUserdata, userdata) == 0, "Validate that userdata was not changed, expected: %s, got: %s", referenceUserdata, userdata);
@@ -1547,14 +1547,14 @@ static int video_getSetWindowData(void *arg)
SDLTest_AssertCheck(SDL_strcmp(referenceName, name) == 0, "Validate that name was not changed, expected: %s, got: %s", referenceName, name);
/* Set data with NULL to clear */
SDL_SetProperty(SDL_GetWindowProperties(window), name, NULL, NULL, NULL);
SDL_SetProperty(SDL_GetWindowProperties(window), name, NULL);
SDLTest_AssertPass("Call to SDL_SetWindowData(...%s,NULL)", name);
SDLTest_AssertCheck(SDL_strcmp(referenceName, name) == 0, "Validate that name was not changed, expected: %s, got: %s", referenceName, name);
SDLTest_AssertCheck(SDL_strcmp(referenceUserdata, userdata) == 0, "Validate that userdata was not changed, expected: %s, got: %s", referenceUserdata, userdata);
SDLTest_AssertCheck(SDL_strcmp(referenceUserdata2, userdata2) == 0, "Validate that userdata2 was not changed, expected: %s, got: %s", referenceUserdata2, userdata2);
/* Set data with NULL to clear again */
SDL_SetProperty(SDL_GetWindowProperties(window), name, NULL, NULL, NULL);
SDL_SetProperty(SDL_GetWindowProperties(window), name, NULL);
SDLTest_AssertPass("Call to SDL_SetWindowData(...%s,NULL) [again]", name);
SDLTest_AssertCheck(SDL_strcmp(referenceName, name) == 0, "Validate that name was not changed, expected: %s, got: %s", referenceName, name);
SDLTest_AssertCheck(SDL_strcmp(referenceUserdata, userdata) == 0, "Validate that userdata was not changed, expected: %s, got: %s", referenceUserdata, userdata);
@@ -1573,7 +1573,7 @@ static int video_getSetWindowData(void *arg)
SDLTest_AssertCheck(SDL_strcmp(referenceName2, name2) == 0, "Validate that name2 was not changed, expected: %s, got: %s", referenceName2, name2);
/* Set data (again) */
SDL_SetProperty(SDL_GetWindowProperties(window), name, userdata, NULL, NULL);
SDL_SetProperty(SDL_GetWindowProperties(window), name, userdata);
SDLTest_AssertPass("Call to SDL_SetWindowData(...%s,%s) [again, after clear]", name, userdata);
SDLTest_AssertCheck(SDL_strcmp(referenceName, name) == 0, "Validate that name was not changed, expected: %s, got: %s", referenceName, name);
SDLTest_AssertCheck(SDL_strcmp(referenceUserdata, userdata) == 0, "Validate that userdata was not changed, expected: %s, got: %s", referenceUserdata, userdata);
@@ -1585,22 +1585,22 @@ static int video_getSetWindowData(void *arg)
SDLTest_AssertCheck(SDL_strcmp(referenceName, name) == 0, "Validate that name was not changed, expected: %s, got: %s", referenceName, name);
/* Set data with NULL name, valid userdata */
SDL_SetProperty(SDL_GetWindowProperties(window), NULL, userdata, NULL, NULL);
SDL_SetProperty(SDL_GetWindowProperties(window), NULL, userdata);
SDLTest_AssertPass("Call to SDL_SetWindowData(name=NULL)");
checkInvalidParameterError();
/* Set data with empty name, valid userdata */
SDL_SetProperty(SDL_GetWindowProperties(window), "", userdata, NULL, NULL);
SDL_SetProperty(SDL_GetWindowProperties(window), "", userdata);
SDLTest_AssertPass("Call to SDL_SetWindowData(name='')");
checkInvalidParameterError();
/* Set data with NULL name, NULL userdata */
SDL_SetProperty(SDL_GetWindowProperties(window), NULL, NULL, NULL, NULL);
SDL_SetProperty(SDL_GetWindowProperties(window), NULL, NULL);
SDLTest_AssertPass("Call to SDL_SetWindowData(name=NULL,userdata=NULL)");
checkInvalidParameterError();
/* Set data with empty name, NULL userdata */
SDL_SetProperty(SDL_GetWindowProperties(window), "", NULL, NULL, NULL);
SDL_SetProperty(SDL_GetWindowProperties(window), "", NULL);
SDLTest_AssertPass("Call to SDL_SetWindowData(name='',userdata=NULL)");
checkInvalidParameterError();

2
test/testffmpeg.c
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@@ -464,7 +464,7 @@ static SDL_bool GetTextureForMemoryFrame(AVFrame *frame, SDL_Texture **texture)
SDL_OutOfMemory();
return SDL_FALSE;
}
SDL_SetProperty(props, SWS_CONTEXT_CONTAINER_PROPERTY, sws_container, FreeSwsContextContainer, NULL);
SDL_SetPropertyWithCleanup(props, SWS_CONTEXT_CONTAINER_PROPERTY, sws_container, FreeSwsContextContainer, NULL);
}
sws_container->context = sws_getCachedContext(sws_container->context, frame->width, frame->height, frame->format, frame->width, frame->height, AV_PIX_FMT_BGRA, SWS_POINT, NULL, NULL, NULL);
if (sws_container->context) {