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Backends: OpenGL3: build fix for WebGL/ES2/Emscripten. (#9378)

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Amend 6b05f71 which was incorrectly labelled.
This commit is contained in:
ocornut
2026-04-24 12:26:21 +02:00
parent 6b05f711fd
commit bda49826cf
1 changed files with 10 additions and 1 deletions
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11
backends/imgui_impl_opengl3.cpp
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@@ -255,7 +255,9 @@ struct ImGui_ImplOpenGL3_Data
bool UseBufferSubData;
bool UseTexParameterToSetSampler;
GLuint NextSampler; // Used if !HasBindSampler && UseTexParameterToSetSampler.
GLuint TexSamplers[2]; // Used if IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_SAMPLER && HasBindSimpler (0=linear, 1=nearest).
#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_SAMPLER
GLuint TexSamplers[2]; // Used if HasBindSimpler. (0=linear, 1=nearest)
#endif
ImVector<char> TempBuffer;
@@ -404,8 +406,13 @@ static void ImGui_ImplOpenGL3_SetupRenderState(ImDrawData* draw_data, int fb_wid
// Draw callbacks
static void ImGui_ImplOpenGL3_DrawCallback_ResetRenderState(const ImDrawList*, const ImDrawCmd*) {} // Intentionally empty. Used as an identifier for rendering loop to call its code. Simpler to implement this way.
#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_SAMPLER
static void ImGui_ImplOpenGL3_DrawCallback_SetSamplerLinear(const ImDrawList*, const ImDrawCmd*) { ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData(); if (bd->HasBindSampler) { glBindSampler(0, bd->TexSamplers[0]); } else { bd->UseTexParameterToSetSampler = true; bd->NextSampler = GL_LINEAR; } }
static void ImGui_ImplOpenGL3_DrawCallback_SetSamplerNearest(const ImDrawList*, const ImDrawCmd*) { ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData(); if (bd->HasBindSampler) { glBindSampler(0, bd->TexSamplers[1]); } else { bd->UseTexParameterToSetSampler = true; bd->NextSampler = GL_NEAREST; } }
#else
static void ImGui_ImplOpenGL3_DrawCallback_SetSamplerLinear(const ImDrawList*, const ImDrawCmd*) { ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData(); bd->UseTexParameterToSetSampler = true; bd->NextSampler = GL_LINEAR; }
static void ImGui_ImplOpenGL3_DrawCallback_SetSamplerNearest(const ImDrawList*, const ImDrawCmd*) { ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData(); bd->UseTexParameterToSetSampler = true; bd->NextSampler = GL_NEAREST; }
#endif
// OpenGL3 Render function.
// Note that this implementation is little overcomplicated because we are saving/setting up/restoring every OpenGL state explicitly.
@@ -944,7 +951,9 @@ void ImGui_ImplOpenGL3_DestroyDeviceObjects()
{
ImGui_ImplOpenGL3_InitLoader();
ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_SAMPLER
if (bd->TexSamplers[0]) { glDeleteSamplers(2, &bd->TexSamplers[0]); bd->TexSamplers[0] = bd->TexSamplers[1] = 0; }
#endif
if (bd->VboHandle) { glDeleteBuffers(1, &bd->VboHandle); bd->VboHandle = 0; }
if (bd->ElementsHandle) { glDeleteBuffers(1, &bd->ElementsHandle); bd->ElementsHandle = 0; }
if (bd->ShaderHandle) { glDeleteProgram(bd->ShaderHandle); bd->ShaderHandle = 0; }