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Backends: Cleanup, removed unnecessary create/destroy wrappers. Fix allegro5 backend + use same code as other backend.

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+ Update gallery links (#4280)
This commit is contained in:
ocornut
2021-06-30 15:22:15 +02:00
parent 6792e1a3e0
commit cf2daf353e
13 changed files with 129 additions and 121 deletions
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12
backends/imgui_impl_opengl2.cpp
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@ -65,9 +65,10 @@ struct ImGui_ImplOpenGL2_Data
// Backend data stored in io.BackendRendererUserData to allow support for multiple Dear ImGui contexts
// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
static ImGui_ImplOpenGL2_Data* ImGui_ImplOpenGL2_CreateBackendData() { return IM_NEW(ImGui_ImplOpenGL2_Data)(); }
static ImGui_ImplOpenGL2_Data* ImGui_ImplOpenGL2_GetBackendData() { return (ImGui_ImplOpenGL2_Data*)ImGui::GetIO().BackendRendererUserData; }
static void ImGui_ImplOpenGL2_DestroyBackendData() { IM_DELETE(ImGui_ImplOpenGL2_GetBackendData()); }
static ImGui_ImplOpenGL2_Data* ImGui_ImplOpenGL2_GetBackendData()
{
return ImGui::GetCurrentContext() ? (ImGui_ImplOpenGL2_Data*)ImGui::GetIO().BackendRendererUserData : NULL;
}
// Functions
bool ImGui_ImplOpenGL2_Init()
@ -76,7 +77,7 @@ bool ImGui_ImplOpenGL2_Init()
IM_ASSERT(io.BackendRendererUserData == NULL && "Already initialized a renderer backend!");
// Setup backend capabilities flags
ImGui_ImplOpenGL2_Data* bd = ImGui_ImplOpenGL2_CreateBackendData();
ImGui_ImplOpenGL2_Data* bd = IM_NEW(ImGui_ImplOpenGL2_Data)();
io.BackendRendererUserData = (void*)bd;
io.BackendRendererName = "imgui_impl_opengl2";
@ -86,11 +87,12 @@ bool ImGui_ImplOpenGL2_Init()
void ImGui_ImplOpenGL2_Shutdown()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplOpenGL2_Data* bd = ImGui_ImplOpenGL2_GetBackendData();
ImGui_ImplOpenGL2_DestroyDeviceObjects();
io.BackendRendererName = NULL;
io.BackendRendererUserData = NULL;
ImGui_ImplOpenGL2_DestroyBackendData();
IM_DELETE(bd);
}
void ImGui_ImplOpenGL2_NewFrame()