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Backends: OpenGL3: Clarify use of GL_POLYGON_MODE.
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@ -151,6 +151,11 @@ using namespace gl;
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#define GL_VERTEX_ARRAY_BINDING GL_VERTEX_ARRAY_BINDING_OES
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#endif
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// Desktop GL 2.0+ has glPolygonMode() which GL ES and WebGL don't have.
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#ifdef GL_POLYGON_MODE
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#define IMGUI_IMPL_HAS_POLYGON_MODE
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#endif
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// Desktop GL 3.2+ has glDrawElementsBaseVertex() which GL ES and WebGL don't have.
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#if !defined(IMGUI_IMPL_OPENGL_ES2) && !defined(IMGUI_IMPL_OPENGL_ES3) && defined(GL_VERSION_3_2)
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#define IMGUI_IMPL_OPENGL_MAY_HAVE_VTX_OFFSET
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@ -330,7 +335,7 @@ static void ImGui_ImplOpenGL3_SetupRenderState(ImDrawData* draw_data, int fb_wid
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if (bd->GlVersion >= 310)
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glDisable(GL_PRIMITIVE_RESTART);
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#endif
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#ifdef GL_POLYGON_MODE
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#ifdef IMGUI_IMPL_HAS_POLYGON_MODE
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glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
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#endif
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@ -412,7 +417,7 @@ void ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
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#ifdef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
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GLuint last_vertex_array_object; glGetIntegerv(GL_VERTEX_ARRAY_BINDING, (GLint*)&last_vertex_array_object);
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#endif
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#ifdef GL_POLYGON_MODE
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#ifdef IMGUI_IMPL_HAS_POLYGON_MODE
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GLint last_polygon_mode[2]; glGetIntegerv(GL_POLYGON_MODE, last_polygon_mode);
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#endif
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GLint last_viewport[4]; glGetIntegerv(GL_VIEWPORT, last_viewport);
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@ -521,7 +526,7 @@ void ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
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if (bd->GlVersion >= 310) { if (last_enable_primitive_restart) glEnable(GL_PRIMITIVE_RESTART); else glDisable(GL_PRIMITIVE_RESTART); }
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#endif
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#ifdef GL_POLYGON_MODE
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#ifdef IMGUI_IMPL_HAS_POLYGON_MODE
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glPolygonMode(GL_FRONT_AND_BACK, (GLenum)last_polygon_mode[0]);
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#endif
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glViewport(last_viewport[0], last_viewport[1], (GLsizei)last_viewport[2], (GLsizei)last_viewport[3]);
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@ -545,7 +550,7 @@ bool ImGui_ImplOpenGL3_CreateFontsTexture()
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glBindTexture(GL_TEXTURE_2D, bd->FontTexture);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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#ifdef GL_UNPACK_ROW_LENGTH
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#ifdef GL_UNPACK_ROW_LENGTH // Not on WebGL/ES
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glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
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#endif
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
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@ -458,7 +458,7 @@ void ImGui::ShowDemoWindow(bool* p_open)
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{
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HelpMarker(
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"Those flags are set by the backends (imgui_impl_xxx files) to specify their capabilities.\n"
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"Here we expose then as read-only fields to avoid breaking interactions with your backend.");
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"Here we expose them as read-only fields to avoid breaking interactions with your backend.");
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// Make a local copy to avoid modifying actual backend flags.
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ImGuiBackendFlags backend_flags = io.BackendFlags;
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