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Backends: SDL_Renderer2: renamed all functions accordingly. (#6286)

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This commit is contained in:
ocornut 2023-05-30 20:15:31 +02:00
parent 88e7d773df
commit b709b02e96
3 changed files with 39 additions and 39 deletions
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54
backends/imgui_impl_sdlrenderer2.cpp
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@ -44,29 +44,29 @@
#endif
// SDL_Renderer data
struct ImGui_ImplSDLRenderer_Data
struct ImGui_ImplSDLRenderer2_Data
{
SDL_Renderer* SDLRenderer;
SDL_Texture* FontTexture;
ImGui_ImplSDLRenderer_Data() { memset((void*)this, 0, sizeof(*this)); }
ImGui_ImplSDLRenderer2_Data() { memset((void*)this, 0, sizeof(*this)); }
};
// 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_ImplSDLRenderer_Data* ImGui_ImplSDLRenderer_GetBackendData()
static ImGui_ImplSDLRenderer2_Data* ImGui_ImplSDLRenderer2_GetBackendData()
{
return ImGui::GetCurrentContext() ? (ImGui_ImplSDLRenderer_Data*)ImGui::GetIO().BackendRendererUserData : nullptr;
return ImGui::GetCurrentContext() ? (ImGui_ImplSDLRenderer2_Data*)ImGui::GetIO().BackendRendererUserData : nullptr;
}
// Functions
bool ImGui_ImplSDLRenderer_Init(SDL_Renderer* renderer)
bool ImGui_ImplSDLRenderer2_Init(SDL_Renderer* renderer)
{
ImGuiIO& io = ImGui::GetIO();
IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
IM_ASSERT(renderer != nullptr && "SDL_Renderer not initialized!");
// Setup backend capabilities flags
ImGui_ImplSDLRenderer_Data* bd = IM_NEW(ImGui_ImplSDLRenderer_Data)();
ImGui_ImplSDLRenderer2_Data* bd = IM_NEW(ImGui_ImplSDLRenderer2_Data)();
io.BackendRendererUserData = (void*)bd;
io.BackendRendererName = "imgui_impl_sdlrenderer2";
io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset; // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
@ -76,13 +76,13 @@ bool ImGui_ImplSDLRenderer_Init(SDL_Renderer* renderer)
return true;
}
void ImGui_ImplSDLRenderer_Shutdown()
void ImGui_ImplSDLRenderer2_Shutdown()
{
ImGui_ImplSDLRenderer_Data* bd = ImGui_ImplSDLRenderer_GetBackendData();
ImGui_ImplSDLRenderer2_Data* bd = ImGui_ImplSDLRenderer2_GetBackendData();
IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplSDLRenderer_DestroyDeviceObjects();
ImGui_ImplSDLRenderer2_DestroyDeviceObjects();
io.BackendRendererName = nullptr;
io.BackendRendererUserData = nullptr;
@ -90,9 +90,9 @@ void ImGui_ImplSDLRenderer_Shutdown()
IM_DELETE(bd);
}
static void ImGui_ImplSDLRenderer_SetupRenderState()
static void ImGui_ImplSDLRenderer2_SetupRenderState()
{
ImGui_ImplSDLRenderer_Data* bd = ImGui_ImplSDLRenderer_GetBackendData();
ImGui_ImplSDLRenderer2_Data* bd = ImGui_ImplSDLRenderer2_GetBackendData();
// Clear out any viewports and cliprect set by the user
// FIXME: Technically speaking there are lots of other things we could backup/setup/restore during our render process.
@ -100,18 +100,18 @@ static void ImGui_ImplSDLRenderer_SetupRenderState()
SDL_RenderSetClipRect(bd->SDLRenderer, nullptr);
}
void ImGui_ImplSDLRenderer_NewFrame()
void ImGui_ImplSDLRenderer2_NewFrame()
{
ImGui_ImplSDLRenderer_Data* bd = ImGui_ImplSDLRenderer_GetBackendData();
IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplSDLRenderer_Init()?");
ImGui_ImplSDLRenderer2_Data* bd = ImGui_ImplSDLRenderer2_GetBackendData();
IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplSDLRenderer2_Init()?");
if (!bd->FontTexture)
ImGui_ImplSDLRenderer_CreateDeviceObjects();
ImGui_ImplSDLRenderer2_CreateDeviceObjects();
}
void ImGui_ImplSDLRenderer_RenderDrawData(ImDrawData* draw_data)
void ImGui_ImplSDLRenderer2_RenderDrawData(ImDrawData* draw_data)
{
ImGui_ImplSDLRenderer_Data* bd = ImGui_ImplSDLRenderer_GetBackendData();
ImGui_ImplSDLRenderer2_Data* bd = ImGui_ImplSDLRenderer2_GetBackendData();
// If there's a scale factor set by the user, use that instead
// If the user has specified a scale factor to SDL_Renderer already via SDL_RenderSetScale(), SDL will scale whatever we pass
@ -146,7 +146,7 @@ void ImGui_ImplSDLRenderer_RenderDrawData(ImDrawData* draw_data)
ImVec2 clip_scale = render_scale;
// Render command lists
ImGui_ImplSDLRenderer_SetupRenderState();
ImGui_ImplSDLRenderer2_SetupRenderState();
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
const ImDrawList* cmd_list = draw_data->CmdLists[n];
@ -161,7 +161,7 @@ void ImGui_ImplSDLRenderer_RenderDrawData(ImDrawData* draw_data)
// User callback, registered via ImDrawList::AddCallback()
// (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
ImGui_ImplSDLRenderer_SetupRenderState();
ImGui_ImplSDLRenderer2_SetupRenderState();
else
pcmd->UserCallback(cmd_list, pcmd);
}
@ -206,10 +206,10 @@ void ImGui_ImplSDLRenderer_RenderDrawData(ImDrawData* draw_data)
}
// Called by Init/NewFrame/Shutdown
bool ImGui_ImplSDLRenderer_CreateFontsTexture()
bool ImGui_ImplSDLRenderer2_CreateFontsTexture()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplSDLRenderer_Data* bd = ImGui_ImplSDLRenderer_GetBackendData();
ImGui_ImplSDLRenderer2_Data* bd = ImGui_ImplSDLRenderer2_GetBackendData();
// Build texture atlas
unsigned char* pixels;
@ -234,10 +234,10 @@ bool ImGui_ImplSDLRenderer_CreateFontsTexture()
return true;
}
void ImGui_ImplSDLRenderer_DestroyFontsTexture()
void ImGui_ImplSDLRenderer2_DestroyFontsTexture()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplSDLRenderer_Data* bd = ImGui_ImplSDLRenderer_GetBackendData();
ImGui_ImplSDLRenderer2_Data* bd = ImGui_ImplSDLRenderer2_GetBackendData();
if (bd->FontTexture)
{
io.Fonts->SetTexID(0);
@ -246,14 +246,14 @@ void ImGui_ImplSDLRenderer_DestroyFontsTexture()
}
}
bool ImGui_ImplSDLRenderer_CreateDeviceObjects()
bool ImGui_ImplSDLRenderer2_CreateDeviceObjects()
{
return ImGui_ImplSDLRenderer_CreateFontsTexture();
return ImGui_ImplSDLRenderer2_CreateFontsTexture();
}
void ImGui_ImplSDLRenderer_DestroyDeviceObjects()
void ImGui_ImplSDLRenderer2_DestroyDeviceObjects()
{
ImGui_ImplSDLRenderer_DestroyFontsTexture();
ImGui_ImplSDLRenderer2_DestroyFontsTexture();
}
#if defined(__clang__)

16
backends/imgui_impl_sdlrenderer2.h
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@ -16,13 +16,13 @@
struct SDL_Renderer;
IMGUI_IMPL_API bool ImGui_ImplSDLRenderer_Init(SDL_Renderer* renderer);
IMGUI_IMPL_API void ImGui_ImplSDLRenderer_Shutdown();
IMGUI_IMPL_API void ImGui_ImplSDLRenderer_NewFrame();
IMGUI_IMPL_API void ImGui_ImplSDLRenderer_RenderDrawData(ImDrawData* draw_data);
IMGUI_IMPL_API bool ImGui_ImplSDLRenderer2_Init(SDL_Renderer* renderer);
IMGUI_IMPL_API void ImGui_ImplSDLRenderer2_Shutdown();
IMGUI_IMPL_API void ImGui_ImplSDLRenderer2_NewFrame();
IMGUI_IMPL_API void ImGui_ImplSDLRenderer2_RenderDrawData(ImDrawData* draw_data);
// Called by Init/NewFrame/Shutdown
IMGUI_IMPL_API bool ImGui_ImplSDLRenderer_CreateFontsTexture();
IMGUI_IMPL_API void ImGui_ImplSDLRenderer_DestroyFontsTexture();
IMGUI_IMPL_API bool ImGui_ImplSDLRenderer_CreateDeviceObjects();
IMGUI_IMPL_API void ImGui_ImplSDLRenderer_DestroyDeviceObjects();
IMGUI_IMPL_API bool ImGui_ImplSDLRenderer2_CreateFontsTexture();
IMGUI_IMPL_API void ImGui_ImplSDLRenderer2_DestroyFontsTexture();
IMGUI_IMPL_API bool ImGui_ImplSDLRenderer2_CreateDeviceObjects();
IMGUI_IMPL_API void ImGui_ImplSDLRenderer2_DestroyDeviceObjects();

8
examples/example_sdl2_sdlrenderer2/main.cpp
View File

@ -58,7 +58,7 @@ int main(int, char**)
// Setup Platform/Renderer backends
ImGui_ImplSDL2_InitForSDLRenderer(window, renderer);
ImGui_ImplSDLRenderer_Init(renderer);
ImGui_ImplSDLRenderer2_Init(renderer);
// Load Fonts
// - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
@ -101,7 +101,7 @@ int main(int, char**)
}
// Start the Dear ImGui frame
ImGui_ImplSDLRenderer_NewFrame();
ImGui_ImplSDLRenderer2_NewFrame();
ImGui_ImplSDL2_NewFrame();
ImGui::NewFrame();
@ -147,12 +147,12 @@ int main(int, char**)
SDL_RenderSetScale(renderer, io.DisplayFramebufferScale.x, io.DisplayFramebufferScale.y);
SDL_SetRenderDrawColor(renderer, (Uint8)(clear_color.x * 255), (Uint8)(clear_color.y * 255), (Uint8)(clear_color.z * 255), (Uint8)(clear_color.w * 255));
SDL_RenderClear(renderer);
ImGui_ImplSDLRenderer_RenderDrawData(ImGui::GetDrawData());
ImGui_ImplSDLRenderer2_RenderDrawData(ImGui::GetDrawData());
SDL_RenderPresent(renderer);
}
// Cleanup
ImGui_ImplSDLRenderer_Shutdown();
ImGui_ImplSDLRenderer2_Shutdown();
ImGui_ImplSDL2_Shutdown();
ImGui::DestroyContext();