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https://github.com/Drezil/imgui.git
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Metrics: Show wire-frame mesh and approximate surface area when hovering ImDrawCmd. Amend aeb5795.
Internals: Added ImTriangleArea()
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omar
parent
aeb57952d6
commit
bbe0409942
@ -84,10 +84,11 @@ Other Changes:
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- Misc: Windows: Disabled win32 function by default when building with UWP. (#2892, #2895)
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- Misc: Using static_assert() when using C++11, instead of our own construct (avoid zealous Clang warnings).
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- Misc: Added IMGUI_DISABLE_FILE_FUNCTIONS/IMGUI_DISABLE_DEFAULT_FILE_FUNCTION to nullify or disable
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default implementationof ImFileXXX functions linking with fopen/fclose/fread/fwrite. (#2734)
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default implementation of ImFileXXX functions linking with fopen/fclose/fread/fwrite. (#2734)
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- Docs: Improved and moved FAQ to docs/FAQ.md so it can be readable on the web. [@ButternCream, @ocornut]
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- Docs: Added permanent redirect from https://www.dearimgui.org/faq to FAQ page.
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- Demo: Added simple item reordering demo in Widgets -> Drag and Drop section. (#2823, #143) [@rokups]
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- Metrics: Show wire-frame mesh and approximate surface area when hovering ImDrawCmd. [@ShironekoBen]
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- Metrics: Expose basic details of each window key/value state storage.
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- Examples: DX12: Using IDXGIDebug1::ReportLiveObjects() when DX12_ENABLE_DEBUG_LAYER is enabled.
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- Examples: Emscripten: Removed BINARYEN_TRAP_MODE=clamp from Makefile which was removed in Emscripten 1.39.0
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101
imgui.cpp
101
imgui.cpp
@ -45,7 +45,7 @@ CODE
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// [SECTION] FORWARD DECLARATIONS
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// [SECTION] CONTEXT AND MEMORY ALLOCATORS
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// [SECTION] MAIN USER FACING STRUCTURES (ImGuiStyle, ImGuiIO)
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// [SECTION] MISC HELPERS/UTILITIES (Maths, String, Format, Hash, File functions)
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// [SECTION] MISC HELPERS/UTILITIES (Geomtry, String, Format, Hash, File functions)
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// [SECTION] MISC HELPERS/UTILITIES (File functions)
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// [SECTION] MISC HELPERS/UTILITIES (ImText* functions)
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// [SECTION] MISC HELPERS/UTILITIES (Color functions)
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@ -1083,7 +1083,7 @@ void ImGuiIO::ClearInputCharacters()
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}
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//-----------------------------------------------------------------------------
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// [SECTION] MISC HELPERS/UTILITIES (Maths, String, Format, Hash, File functions)
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// [SECTION] MISC HELPERS/UTILITIES (Geometry, String, Format, Hash, File functions)
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//-----------------------------------------------------------------------------
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ImVec2 ImLineClosestPoint(const ImVec2& a, const ImVec2& b, const ImVec2& p)
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@ -9715,7 +9715,7 @@ void ImGui::ShowMetricsWindow(bool* p_open)
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static bool show_windows_rects = false;
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static int show_windows_rect_type = WRT_WorkRect;
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static bool show_windows_begin_order = false;
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static bool show_drawcmd_clip_rects = true;
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static bool show_drawcmd_details = true;
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// Basic info
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ImGuiContext& g = *GImGui;
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@ -9766,7 +9766,7 @@ void ImGui::ShowMetricsWindow(bool* p_open)
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return;
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if (window && !window->WasActive)
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ImGui::Text("(Note: owning Window is inactive: DrawList is not being rendered!)");
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ImGui::TextDisabled("Warning: owning Window is inactive. This DrawList is not being rendered!");
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unsigned int elem_offset = 0;
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for (const ImDrawCmd* pcmd = draw_list->CmdBuffer.begin(); pcmd < draw_list->CmdBuffer.end(); elem_offset += pcmd->ElemCount, pcmd++)
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@ -9780,73 +9780,51 @@ void ImGui::ShowMetricsWindow(bool* p_open)
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}
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ImDrawIdx* idx_buffer = (draw_list->IdxBuffer.Size > 0) ? draw_list->IdxBuffer.Data : NULL;
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// Calculate approximate coverage area (touched pixel count)
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// This will be in pixels squared as long there's no post-scaling happening to the ImGui output
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// Optionally also draw all the polys in the list in wireframe when hovering over
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float total_area = 0.0f;
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for (unsigned int base_idx = elem_offset; base_idx < (elem_offset + pcmd->ElemCount); base_idx += 3)
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{
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ImVec2 triangles_pos[3];
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for (int n = 0; n < 3; n++)
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{
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int vtx_i = idx_buffer ? idx_buffer[base_idx + n] : (base_idx + n);
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ImDrawVert& v = draw_list->VtxBuffer[vtx_i];
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triangles_pos[n] = v.pos;
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}
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// Calculate triangle area and accumulate
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float area = abs((triangles_pos[0].x * (triangles_pos[1].y - triangles_pos[2].y)) +
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(triangles_pos[1].x * (triangles_pos[2].y - triangles_pos[0].y)) +
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(triangles_pos[2].x * (triangles_pos[0].y - triangles_pos[1].y))) * 0.5f;
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total_area += area;
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}
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char buf[300];
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ImFormatString(buf, IM_ARRAYSIZE(buf), "Draw %4d triangles, tex 0x%p, area %.0fpx^2, clip_rect (%4.0f,%4.0f)-(%4.0f,%4.0f)",
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pcmd->ElemCount/3, (void*)(intptr_t)pcmd->TextureId, total_area,
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ImFormatString(buf, IM_ARRAYSIZE(buf), "DrawCmd: %4d triangles, Tex 0x%p, ClipRect (%4.0f,%4.0f)-(%4.0f,%4.0f)",
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pcmd->ElemCount/3, (void*)(intptr_t)pcmd->TextureId,
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pcmd->ClipRect.x, pcmd->ClipRect.y, pcmd->ClipRect.z, pcmd->ClipRect.w);
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bool pcmd_node_open = ImGui::TreeNode((void*)(pcmd - draw_list->CmdBuffer.begin()), "%s", buf);
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if (show_drawcmd_clip_rects && fg_draw_list && ImGui::IsItemHovered())
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if (show_drawcmd_details && fg_draw_list && ImGui::IsItemHovered())
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{
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ImRect clip_rect = pcmd->ClipRect;
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ImRect vtxs_rect;
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for (unsigned int i = elem_offset; i < elem_offset + (int)pcmd->ElemCount; i++)
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vtxs_rect.Add(draw_list->VtxBuffer[idx_buffer ? idx_buffer[i] : i].pos);
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clip_rect.Floor(); fg_draw_list->AddRect(clip_rect.Min, clip_rect.Max, IM_COL32(255,0,255,255));
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vtxs_rect.Floor(); fg_draw_list->AddRect(vtxs_rect.Min, vtxs_rect.Max, IM_COL32(255,255,0,255));
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fg_draw_list->AddRect(ImFloor(clip_rect.Min), ImFloor(clip_rect.Max), IM_COL32(255,0,255,255));
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fg_draw_list->AddRect(ImFloor(vtxs_rect.Min), ImFloor(vtxs_rect.Max), IM_COL32(255,255,0,255));
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}
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if (!pcmd_node_open)
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continue;
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// Display vertex information summary. Hover to get all triangles drawn in wireframe
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ImFormatString(buf, IM_ARRAYSIZE(buf), "ElemCount: %d, ElemCount/3: %d, VtxOffset: +%d, IdxOffset: +%d", pcmd->ElemCount, pcmd->ElemCount/3, pcmd->VtxOffset, pcmd->IdxOffset);
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ImGui::Selectable(buf, false);
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if (fg_draw_list && ImGui::IsItemHovered())
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{
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// Draw wireframe version of everything
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ImDrawListFlags backup_flags = fg_draw_list->Flags;
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fg_draw_list->Flags &= ~ImDrawListFlags_AntiAliasedLines; // Disable AA on triangle outlines at is more readable for very large and thin triangles.
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// Calculate approximate coverage area (touched pixel count)
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// This will be in pixels squared as long there's no post-scaling happening to the renderer output.
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float total_area = 0.0f;
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for (unsigned int base_idx = elem_offset; base_idx < (elem_offset + pcmd->ElemCount); base_idx += 3)
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{
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ImVec2 triangles_pos[3];
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ImVec2 triangle[3];
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for (int n = 0; n < 3; n++)
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triangle[n] = draw_list->VtxBuffer[idx_buffer ? idx_buffer[base_idx + n] : (base_idx + n)].pos;
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total_area += ImTriangleArea(triangle[0], triangle[1], triangle[2]);
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}
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// Display vertex information summary. Hover to get all triangles drawn in wire-frame
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ImFormatString(buf, IM_ARRAYSIZE(buf), "Mesh: ElemCount: %d, VtxOffset: +%d, IdxOffset: +%d, Area: ~%0.f px", pcmd->ElemCount, pcmd->VtxOffset, pcmd->IdxOffset, total_area);
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ImGui::Selectable(buf);
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if (fg_draw_list && ImGui::IsItemHovered() && show_drawcmd_details)
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{
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int vtx_i = idx_buffer ? idx_buffer[base_idx + n] : (base_idx + n);
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ImDrawVert& v = draw_list->VtxBuffer[vtx_i];
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triangles_pos[n] = v.pos;
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// Draw wire-frame version of everything
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ImDrawListFlags backup_flags = fg_draw_list->Flags;
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fg_draw_list->Flags &= ~ImDrawListFlags_AntiAliasedLines; // Disable AA on triangle outlines is more readable for very large and thin triangles.
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ImRect clip_rect = pcmd->ClipRect;
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fg_draw_list->AddRect(ImFloor(clip_rect.Min), ImFloor(clip_rect.Max), IM_COL32(255, 0, 255, 255));
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for (unsigned int base_idx = elem_offset; base_idx < (elem_offset + pcmd->ElemCount); base_idx += 3)
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{
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ImVec2 triangle[3];
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for (int n = 0; n < 3; n++)
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triangle[n] = draw_list->VtxBuffer[idx_buffer ? idx_buffer[base_idx + n] : (base_idx + n)].pos;
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fg_draw_list->AddPolyline(triangle, 3, IM_COL32(255, 255, 0, 255), true, 1.0f);
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}
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fg_draw_list->AddPolyline(triangles_pos, 3, IM_COL32(255, 255, 0, 255), true, 1.0f);
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}
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fg_draw_list->Flags = backup_flags;
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}
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@ -9856,22 +9834,21 @@ void ImGui::ShowMetricsWindow(bool* p_open)
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for (int prim = clipper.DisplayStart, idx_i = elem_offset + clipper.DisplayStart*3; prim < clipper.DisplayEnd; prim++)
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{
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char *buf_p = buf, *buf_end = buf + IM_ARRAYSIZE(buf);
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ImVec2 triangles_pos[3];
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ImVec2 triangle[3];
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for (int n = 0; n < 3; n++, idx_i++)
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{
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int vtx_i = idx_buffer ? idx_buffer[idx_i] : idx_i;
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ImDrawVert& v = draw_list->VtxBuffer[vtx_i];
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triangles_pos[n] = v.pos;
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ImDrawVert& v = draw_list->VtxBuffer[idx_buffer ? idx_buffer[idx_i] : idx_i];
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triangle[n] = v.pos;
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buf_p += ImFormatString(buf_p, buf_end - buf_p, "%s %04d: pos (%8.2f,%8.2f), uv (%.6f,%.6f), col %08X\n",
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(n == 0) ? "elem" : " ", idx_i, v.pos.x, v.pos.y, v.uv.x, v.uv.y, v.col);
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(n == 0) ? "Vert:" : " ", idx_i, v.pos.x, v.pos.y, v.uv.x, v.uv.y, v.col);
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}
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ImGui::Selectable(buf, false);
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if (fg_draw_list && ImGui::IsItemHovered())
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{
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ImDrawListFlags backup_flags = fg_draw_list->Flags;
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fg_draw_list->Flags &= ~ImDrawListFlags_AntiAliasedLines; // Disable AA on triangle outlines at is more readable for very large and thin triangles.
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fg_draw_list->AddPolyline(triangles_pos, 3, IM_COL32(255,255,0,255), true, 1.0f);
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fg_draw_list->Flags &= ~ImDrawListFlags_AntiAliasedLines; // Disable AA on triangle outlines is more readable for very large and thin triangles.
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fg_draw_list->AddPolyline(triangle, 3, IM_COL32(255,255,0,255), true, 1.0f);
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fg_draw_list->Flags = backup_flags;
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}
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}
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@ -10058,7 +10035,7 @@ void ImGui::ShowMetricsWindow(bool* p_open)
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}
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ImGui::Unindent();
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}
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ImGui::Checkbox("Show clipping rectangle when hovering ImDrawCmd node", &show_drawcmd_clip_rects);
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ImGui::Checkbox("Show details when hovering ImDrawCmd node", &show_drawcmd_details);
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ImGui::TreePop();
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}
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@ -3421,7 +3421,7 @@ void ImGui::ShowStyleEditor(ImGuiStyle* ref)
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ImGui::Text("Fallback character: '%c' (U+%04X)", font->FallbackChar, font->FallbackChar);
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ImGui::Text("Ellipsis character: '%c' (U+%04X)", font->EllipsisChar, font->EllipsisChar);
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const float surface_sqrt = sqrtf((float)font->MetricsTotalSurface);
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ImGui::Text("Texture surface: %d pixels (approx) ~ %dx%d", font->MetricsTotalSurface, (int)surface_sqrt, (int)surface_sqrt);
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ImGui::Text("Texture Area: about %d px ~%dx%d px", font->MetricsTotalSurface, (int)surface_sqrt, (int)surface_sqrt);
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for (int config_i = 0; config_i < font->ConfigDataCount; config_i++)
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if (const ImFontConfig* cfg = &font->ConfigData[config_i])
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ImGui::BulletText("Input %d: \'%s\', Oversample: (%d,%d), PixelSnapH: %d", config_i, cfg->Name, cfg->OversampleH, cfg->OversampleV, cfg->PixelSnapH);
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@ -194,11 +194,11 @@ extern IMGUI_API ImGuiContext* GImGui; // Current implicit context pointer
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//-----------------------------------------------------------------------------
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// - Helpers: Misc
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// - Helpers: Bit manipulation
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// - Helpers: Geometry
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// - Helpers: String, Formatting
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// - Helpers: UTF-8 <> wchar conversions
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// - Helpers: ImVec2/ImVec4 operators
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// - Helpers: Maths
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// - Helpers: Geometry
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// - Helper: ImBoolVector
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// - Helper: ImPool<>
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// - Helper: ImChunkStream<>
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@ -216,13 +216,6 @@ static inline ImU32 ImHash(const void* data, int size, ImU32 seed = 0) { ret
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static inline bool ImIsPowerOfTwo(int v) { return v != 0 && (v & (v - 1)) == 0; }
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static inline int ImUpperPowerOfTwo(int v) { v--; v |= v >> 1; v |= v >> 2; v |= v >> 4; v |= v >> 8; v |= v >> 16; v++; return v; }
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// Helpers: Geometry
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IMGUI_API ImVec2 ImLineClosestPoint(const ImVec2& a, const ImVec2& b, const ImVec2& p);
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IMGUI_API bool ImTriangleContainsPoint(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& p);
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IMGUI_API ImVec2 ImTriangleClosestPoint(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& p);
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IMGUI_API void ImTriangleBarycentricCoords(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& p, float& out_u, float& out_v, float& out_w);
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IMGUI_API ImGuiDir ImGetDirQuadrantFromDelta(float dx, float dy);
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// Helpers: String, Formatting
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IMGUI_API int ImStricmp(const char* str1, const char* str2);
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IMGUI_API int ImStrnicmp(const char* str1, const char* str2, size_t count);
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@ -343,6 +336,14 @@ static inline ImVec2 ImRotate(const ImVec2& v, float cos_a, float sin_a)
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static inline float ImLinearSweep(float current, float target, float speed) { if (current < target) return ImMin(current + speed, target); if (current > target) return ImMax(current - speed, target); return current; }
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static inline ImVec2 ImMul(const ImVec2& lhs, const ImVec2& rhs) { return ImVec2(lhs.x * rhs.x, lhs.y * rhs.y); }
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// Helpers: Geometry
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IMGUI_API ImVec2 ImLineClosestPoint(const ImVec2& a, const ImVec2& b, const ImVec2& p);
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IMGUI_API bool ImTriangleContainsPoint(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& p);
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IMGUI_API ImVec2 ImTriangleClosestPoint(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& p);
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IMGUI_API void ImTriangleBarycentricCoords(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& p, float& out_u, float& out_v, float& out_w);
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inline float ImTriangleArea(const ImVec2& a, const ImVec2& b, const ImVec2& c) { return ImFabs((a.x * (b.y - c.y)) + (b.x * (c.y - a.y)) + (c.x * (a.y - b.y))) * 0.5f; }
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IMGUI_API ImGuiDir ImGetDirQuadrantFromDelta(float dx, float dy);
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// Helper: ImBoolVector
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// Store 1-bit per value. Note that Resize() currently clears the whole vector.
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struct IMGUI_API ImBoolVector
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