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Merge branch 'master' into docking

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# Conflicts:
#	backends/imgui_impl_opengl2.cpp
#	backends/imgui_impl_opengl3.cpp
#	imgui.cpp
This commit is contained in:
ocornut
2025-07-22 18:38:50 +09:00
parent 44aa9a4b3a 06ab541e2f
commit fe1cee0837
26 changed files with 344 additions and 230 deletions
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26
backends/imgui_impl_opengl3.cpp
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@@ -25,6 +25,8 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2025-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
// 2025-07-22: OpenGL: Add and call embedded loader shutdown during ImGui_ImplOpenGL3_Shutdown() to facilitate multiple init/shutdown cycles in same process. (#8792)
// 2025-07-15: OpenGL: Set GL_UNPACK_ALIGNMENT to 1 before updating textures (#8802) + restore non-WebGL/ES update path that doesn't require a CPU-side copy.
// 2025-06-11: OpenGL: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. Removed ImGui_ImplOpenGL3_CreateFontsTexture() and ImGui_ImplOpenGL3_DestroyFontsTexture().
// 2025-06-04: OpenGL: Made GLES 3.20 contexts not access GL_CONTEXT_PROFILE_MASK nor GL_PRIMITIVE_RESTART. (#8664)
// 2025-02-18: OpenGL: Lazily reinitialize embedded GL loader for when calling backend from e.g. other DLL boundaries. (#8406)
@@ -431,6 +433,10 @@ void ImGui_ImplOpenGL3_Shutdown()
io.BackendRendererUserData = nullptr;
io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures | ImGuiBackendFlags_RendererHasViewports);
IM_DELETE(bd);
#ifdef IMGUI_IMPL_OPENGL_LOADER_IMGL3W
imgl3wShutdown();
#endif
}
void ImGui_ImplOpenGL3_NewFrame()
@@ -594,10 +600,8 @@ void ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
ImVec2 clip_scale = draw_data->FramebufferScale; // (1,1) unless using retina display which are often (2,2)
// Render command lists
for (int n = 0; n < draw_data->CmdListsCount; n++)
for (const ImDrawList* draw_list : draw_data->CmdLists)
{
const ImDrawList* draw_list = draw_data->CmdLists[n];
// Upload vertex/index buffers
// - OpenGL drivers are in a very sorry state nowadays....
// During 2021 we attempted to switch from glBufferData() to orphaning+glBufferSubData() following reports
@@ -721,6 +725,17 @@ static void ImGui_ImplOpenGL3_DestroyTexture(ImTextureData* tex)
void ImGui_ImplOpenGL3_UpdateTexture(ImTextureData* tex)
{
// FIXME: Consider backing up and restoring
if (tex->Status == ImTextureStatus_WantCreate || tex->Status == ImTextureStatus_WantUpdates)
{
#ifdef GL_UNPACK_ROW_LENGTH // Not on WebGL/ES
GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0));
#endif
#ifdef GL_UNPACK_ALIGNMENT
GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1));
#endif
}
if (tex->Status == ImTextureStatus_WantCreate)
{
// Create and upload new texture to graphics system
@@ -740,9 +755,6 @@ void ImGui_ImplOpenGL3_UpdateTexture(ImTextureData* tex)
GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE));
GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE));
#ifdef GL_UNPACK_ROW_LENGTH // Not on WebGL/ES
GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0));
#endif
GL_CALL(glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tex->Width, tex->Height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels));
// Store identifiers
@@ -761,7 +773,7 @@ void ImGui_ImplOpenGL3_UpdateTexture(ImTextureData* tex)
GLuint gl_tex_id = (GLuint)(intptr_t)tex->TexID;
GL_CALL(glBindTexture(GL_TEXTURE_2D, gl_tex_id));
#if 0// GL_UNPACK_ROW_LENGTH // Not on WebGL/ES
#if GL_UNPACK_ROW_LENGTH // Not on WebGL/ES
GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, tex->Width));
for (ImTextureRect& r : tex->Updates)
GL_CALL(glTexSubImage2D(GL_TEXTURE_2D, 0, r.x, r.y, r.w, r.h, GL_RGBA, GL_UNSIGNED_BYTE, tex->GetPixelsAt(r.x, r.y)));