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Merge branch 'master' into docking

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# Conflicts:
#	imgui.cpp
This commit is contained in:
ocornut
2024-05-16 19:57:04 +02:00
parent 15d8d41f86 5107e58b0f
commit b39fc84f89
22 changed files with 157 additions and 124 deletions
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41
backends/imgui_impl_sdlrenderer2.cpp
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@@ -22,6 +22,7 @@
// - Introduction, links and more at the top of imgui.cpp
// CHANGELOG
// 2024-05-14: *BREAKING CHANGE* ImGui_ImplSDLRenderer3_RenderDrawData() requires SDL_Renderer* passed as parameter.
// 2023-05-30: Renamed imgui_impl_sdlrenderer.h/.cpp to imgui_impl_sdlrenderer2.h/.cpp to accommodate for upcoming SDL3.
// 2022-10-11: Using 'nullptr' instead of 'NULL' as per our switch to C++11.
// 2021-12-21: Update SDL_RenderGeometryRaw() format to work with SDL 2.0.19.
@@ -49,9 +50,9 @@
// SDL_Renderer data
struct ImGui_ImplSDLRenderer2_Data
{
SDL_Renderer* SDLRenderer;
SDL_Renderer* Renderer; // Main viewport's renderer
SDL_Texture* FontTexture;
ImGui_ImplSDLRenderer2_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
@@ -75,7 +76,7 @@ bool ImGui_ImplSDLRenderer2_Init(SDL_Renderer* renderer)
io.BackendRendererName = "imgui_impl_sdlrenderer2";
io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset; // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
bd->SDLRenderer = renderer;
bd->Renderer = renderer;
return true;
}
@@ -94,14 +95,12 @@ void ImGui_ImplSDLRenderer2_Shutdown()
IM_DELETE(bd);
}
static void ImGui_ImplSDLRenderer2_SetupRenderState()
static void ImGui_ImplSDLRenderer2_SetupRenderState(SDL_Renderer* renderer)
{
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.
SDL_RenderSetViewport(bd->SDLRenderer, nullptr);
SDL_RenderSetClipRect(bd->SDLRenderer, nullptr);
SDL_RenderSetViewport(renderer, nullptr);
SDL_RenderSetClipRect(renderer, nullptr);
}
void ImGui_ImplSDLRenderer2_NewFrame()
@@ -113,16 +112,14 @@ void ImGui_ImplSDLRenderer2_NewFrame()
ImGui_ImplSDLRenderer2_CreateDeviceObjects();
}
void ImGui_ImplSDLRenderer2_RenderDrawData(ImDrawData* draw_data)
void ImGui_ImplSDLRenderer2_RenderDrawData(ImDrawData* draw_data, SDL_Renderer* renderer)
{
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
// to SDL_RenderGeometryRaw() by that scale factor. In that case we don't want to be also scaling it ourselves here.
float rsx = 1.0f;
float rsy = 1.0f;
SDL_RenderGetScale(bd->SDLRenderer, &rsx, &rsy);
SDL_RenderGetScale(renderer, &rsx, &rsy);
ImVec2 render_scale;
render_scale.x = (rsx == 1.0f) ? draw_data->FramebufferScale.x : 1.0f;
render_scale.y = (rsy == 1.0f) ? draw_data->FramebufferScale.y : 1.0f;
@@ -141,16 +138,16 @@ void ImGui_ImplSDLRenderer2_RenderDrawData(ImDrawData* draw_data)
SDL_Rect ClipRect;
};
BackupSDLRendererState old = {};
old.ClipEnabled = SDL_RenderIsClipEnabled(bd->SDLRenderer) == SDL_TRUE;
SDL_RenderGetViewport(bd->SDLRenderer, &old.Viewport);
SDL_RenderGetClipRect(bd->SDLRenderer, &old.ClipRect);
old.ClipEnabled = SDL_RenderIsClipEnabled(renderer) == SDL_TRUE;
SDL_RenderGetViewport(renderer, &old.Viewport);
SDL_RenderGetClipRect(renderer, &old.ClipRect);
// Will project scissor/clipping rectangles into framebuffer space
ImVec2 clip_off = draw_data->DisplayPos; // (0,0) unless using multi-viewports
ImVec2 clip_scale = render_scale;
// Render command lists
ImGui_ImplSDLRenderer2_SetupRenderState();
ImGui_ImplSDLRenderer2_SetupRenderState(renderer);
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
const ImDrawList* cmd_list = draw_data->CmdLists[n];
@@ -165,7 +162,7 @@ void ImGui_ImplSDLRenderer2_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_ImplSDLRenderer2_SetupRenderState();
ImGui_ImplSDLRenderer2_SetupRenderState(renderer);
else
pcmd->UserCallback(cmd_list, pcmd);
}
@@ -182,7 +179,7 @@ void ImGui_ImplSDLRenderer2_RenderDrawData(ImDrawData* draw_data)
continue;
SDL_Rect r = { (int)(clip_min.x), (int)(clip_min.y), (int)(clip_max.x - clip_min.x), (int)(clip_max.y - clip_min.y) };
SDL_RenderSetClipRect(bd->SDLRenderer, &r);
SDL_RenderSetClipRect(renderer, &r);
const float* xy = (const float*)(const void*)((const char*)(vtx_buffer + pcmd->VtxOffset) + offsetof(ImDrawVert, pos));
const float* uv = (const float*)(const void*)((const char*)(vtx_buffer + pcmd->VtxOffset) + offsetof(ImDrawVert, uv));
@@ -194,7 +191,7 @@ void ImGui_ImplSDLRenderer2_RenderDrawData(ImDrawData* draw_data)
// Bind texture, Draw
SDL_Texture* tex = (SDL_Texture*)pcmd->GetTexID();
SDL_RenderGeometryRaw(bd->SDLRenderer, tex,
SDL_RenderGeometryRaw(renderer, tex,
xy, (int)sizeof(ImDrawVert),
color, (int)sizeof(ImDrawVert),
uv, (int)sizeof(ImDrawVert),
@@ -205,8 +202,8 @@ void ImGui_ImplSDLRenderer2_RenderDrawData(ImDrawData* draw_data)
}
// Restore modified SDL_Renderer state
SDL_RenderSetViewport(bd->SDLRenderer, &old.Viewport);
SDL_RenderSetClipRect(bd->SDLRenderer, old.ClipEnabled ? &old.ClipRect : nullptr);
SDL_RenderSetViewport(renderer, &old.Viewport);
SDL_RenderSetClipRect(renderer, old.ClipEnabled ? &old.ClipRect : nullptr);
}
// Called by Init/NewFrame/Shutdown
@@ -222,7 +219,7 @@ bool ImGui_ImplSDLRenderer2_CreateFontsTexture()
// Upload texture to graphics system
// (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
bd->FontTexture = SDL_CreateTexture(bd->SDLRenderer, SDL_PIXELFORMAT_ABGR8888, SDL_TEXTUREACCESS_STATIC, width, height);
bd->FontTexture = SDL_CreateTexture(bd->Renderer, SDL_PIXELFORMAT_ABGR8888, SDL_TEXTUREACCESS_STATIC, width, height);
if (bd->FontTexture == nullptr)
{
SDL_Log("error creating texture");