438 lines
20 KiB
C++
438 lines
20 KiB
C++
/**
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* Furnace Tracker - multi-system chiptune tracker
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* Copyright (C) 2021-2022 tildearrow and contributors
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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// portions based on imgui_widgets.cpp
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#include "plot_nolerp.h"
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#include "imgui.h"
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#ifndef IMGUI_DEFINE_MATH_OPERATORS
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#define IMGUI_DEFINE_MATH_OPERATORS
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#endif
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#include "imgui_internal.h"
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struct FurnacePlotArrayGetterData
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{
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const float* Values;
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int Stride;
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FurnacePlotArrayGetterData(const float* values, int stride) { Values = values; Stride = stride; }
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};
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static float Plot_ArrayGetter(void* data, int idx)
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{
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FurnacePlotArrayGetterData* plot_data = (FurnacePlotArrayGetterData*)data;
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const float v = *(const float*)(const void*)((const unsigned char*)plot_data->Values + (size_t)idx * plot_data->Stride);
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return v;
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}
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struct FurnacePlotIntArrayGetterData
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{
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const int* Values;
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int Stride;
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FurnacePlotIntArrayGetterData(const int* values, int stride) { Values = values; Stride = stride; }
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};
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static int Plot_IntArrayGetter(void* data, int idx)
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{
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FurnacePlotIntArrayGetterData* plot_data = (FurnacePlotIntArrayGetterData*)data;
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const int v = *(const int*)(const void*)((const unsigned char*)plot_data->Values + (size_t)idx * plot_data->Stride);
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return v;
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}
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int PlotNoLerpEx(ImGuiPlotType plot_type, const char* label, float (*values_getter)(void* data, int idx), void* data, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 frame_size)
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{
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ImGuiContext& g = *GImGui;
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ImGuiWindow* window = ImGui::GetCurrentWindow();
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if (window->SkipItems)
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return -1;
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const ImGuiStyle& style = g.Style;
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const ImGuiID id = window->GetID(label);
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const ImVec2 label_size = ImGui::CalcTextSize(label, NULL, true);
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if (frame_size.x == 0.0f)
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frame_size.x = ImGui::CalcItemWidth();
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if (frame_size.y == 0.0f)
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frame_size.y = label_size.y + (style.FramePadding.y * 2);
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const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + frame_size);
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const ImRect inner_bb(frame_bb.Min + style.FramePadding, frame_bb.Max - style.FramePadding);
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const ImRect total_bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0));
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ImGui::ItemSize(total_bb, style.FramePadding.y);
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if (!ImGui::ItemAdd(total_bb, 0, &frame_bb))
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return -1;
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const bool hovered = ImGui::ItemHoverable(frame_bb, id);
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// Determine scale from values if not specified
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if (scale_min == FLT_MAX || scale_max == FLT_MAX)
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{
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float v_min = FLT_MAX;
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float v_max = -FLT_MAX;
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for (int i = 0; i < values_count; i++)
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{
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const float v = values_getter(data, i);
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if (v != v) // Ignore NaN values
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continue;
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v_min = ImMin(v_min, v);
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v_max = ImMax(v_max, v);
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}
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if (scale_min == FLT_MAX)
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scale_min = v_min;
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if (scale_max == FLT_MAX)
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scale_max = v_max;
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}
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ImGui::RenderFrame(frame_bb.Min, frame_bb.Max, ImGui::GetColorU32(ImGuiCol_FrameBg), true, style.FrameRounding);
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const int values_count_min = (plot_type == ImGuiPlotType_Lines) ? 2 : 1;
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int idx_hovered = -1;
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if (values_count >= values_count_min)
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{
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int res_w = ImMin((int)frame_size.x, values_count) + ((plot_type == ImGuiPlotType_Lines) ? -1 : 0);
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int item_count = values_count + ((plot_type == ImGuiPlotType_Lines) ? -1 : 0);
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// Tooltip on hover
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if (hovered && inner_bb.Contains(g.IO.MousePos))
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{
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const float t = ImClamp((g.IO.MousePos.x - inner_bb.Min.x) / (inner_bb.Max.x - inner_bb.Min.x), 0.0f, 0.9999f);
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const int v_idx = (int)(t * item_count);
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IM_ASSERT(v_idx >= 0 && v_idx < values_count);
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const float v0 = values_getter(data, (v_idx + values_offset) % values_count);
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if (plot_type == ImGuiPlotType_Lines)
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ImGui::SetTooltip("%d: %8.4g", v_idx, v0);
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else if (plot_type == ImGuiPlotType_Histogram)
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ImGui::SetTooltip("%d: %8.4g", v_idx, v0);
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idx_hovered = v_idx;
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}
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const float t_step = 1.0f / (float)res_w;
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const float inv_scale = (scale_min == scale_max) ? 0.0f : (1.0f / (scale_max - scale_min));
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float v0 = values_getter(data, (0 + values_offset) % values_count);
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float t0 = 0.0f;
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ImVec2 tp0 = ImVec2( t0, 1.0f - ImSaturate((v0 - scale_min) * inv_scale) ); // Point in the normalized space of our target rectangle
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const ImU32 col_base = ImGui::GetColorU32((plot_type == ImGuiPlotType_Lines) ? ImGuiCol_PlotLines : ImGuiCol_PlotHistogram);
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const ImU32 col_hovered = ImGui::GetColorU32((plot_type == ImGuiPlotType_Lines) ? ImGuiCol_PlotLinesHovered : ImGuiCol_PlotHistogramHovered);
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for (int n = 0; n < res_w; n++)
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{
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const float t1 = t0 + t_step;
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const int v1_idx = (int)(t0 * item_count + 0.5f);
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IM_ASSERT(v1_idx >= 0 && v1_idx < values_count);
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const float v1 = values_getter(data, (v1_idx + values_offset + 1) % values_count);
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const ImVec2 tp1 = ImVec2( t1, 1.0f - ImSaturate((v1 - scale_min) * inv_scale) );
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// NB: Draw calls are merged together by the DrawList system. Still, we should render our batch are lower level to save a bit of CPU.
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ImVec2 pos0 = ImLerp(inner_bb.Min, inner_bb.Max, tp0);
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ImVec2 pos1 = ImLerp(inner_bb.Min, inner_bb.Max, tp1);
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ImVec2 pos2 = ImLerp(inner_bb.Min, inner_bb.Max, tp0);
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ImVec2 pos3 = ImLerp(inner_bb.Min, inner_bb.Max, tp1);
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pos1.y=pos0.y;
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pos2.x=pos3.x;
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if (plot_type == ImGuiPlotType_Lines)
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{
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window->DrawList->AddLine(pos0, pos1, idx_hovered == v1_idx ? col_hovered : col_base);
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window->DrawList->AddLine(pos2, pos3, idx_hovered == v1_idx ? col_hovered : col_base);
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}
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else if (plot_type == ImGuiPlotType_Histogram)
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{
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if (pos1.x >= pos0.x + 2.0f)
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pos1.x -= 1.0f;
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window->DrawList->AddRectFilled(pos0, pos1, idx_hovered == v1_idx ? col_hovered : col_base);
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}
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t0 = t1;
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tp0 = tp1;
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}
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}
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// Text overlay
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if (overlay_text)
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ImGui::RenderTextClipped(ImVec2(frame_bb.Min.x, frame_bb.Min.y + style.FramePadding.y), frame_bb.Max, overlay_text, NULL, NULL, ImVec2(0.5f, 0.0f));
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if (label_size.x > 0.0f)
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ImGui::RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, inner_bb.Min.y), label);
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// Return hovered index or -1 if none are hovered.
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// This is currently not exposed in the public API because we need a larger redesign of the whole thing, but in the short-term we are making it available in PlotEx().
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return idx_hovered;
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}
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void PlotNoLerp(const char* label, const float* values, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 graph_size, int stride)
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{
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FurnacePlotArrayGetterData data(values, stride);
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PlotNoLerpEx(ImGuiPlotType_Lines, label, &Plot_ArrayGetter, (void*)&data, values_count, values_offset, overlay_text, scale_min, scale_max, graph_size);
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}
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int PlotBitfieldEx(const char* label, int (*values_getter)(void* data, int idx), void* data, int values_count, int values_offset, const char** overlay_text, int bits, ImVec2 frame_size)
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{
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ImGuiContext& g = *GImGui;
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ImGuiWindow* window = ImGui::GetCurrentWindow();
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if (window->SkipItems)
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return -1;
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const ImGuiStyle& style = g.Style;
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const ImGuiID id = window->GetID(label);
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const ImVec2 label_size = ImGui::CalcTextSize(label, NULL, true);
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if (frame_size.x == 0.0f)
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frame_size.x = ImGui::CalcItemWidth();
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if (frame_size.y == 0.0f)
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frame_size.y = label_size.y + (style.FramePadding.y * 2);
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const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + frame_size);
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const ImRect inner_bb(frame_bb.Min + style.FramePadding, frame_bb.Max - style.FramePadding);
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const ImRect total_bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0));
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ImGui::ItemSize(total_bb, style.FramePadding.y);
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if (!ImGui::ItemAdd(total_bb, 0, &frame_bb))
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return -1;
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const bool hovered = ImGui::ItemHoverable(frame_bb, id);
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ImGui::RenderFrame(frame_bb.Min, frame_bb.Max, ImGui::GetColorU32(ImGuiCol_FrameBg), true, style.FrameRounding);
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const int values_count_min = 1;
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int idx_hovered = -1;
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if (values_count >= values_count_min)
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{
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int res_w = ImMin((int)frame_size.x, values_count);
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int item_count = values_count;
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// Tooltip on hover
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if (hovered && inner_bb.Contains(g.IO.MousePos))
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{
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const float t = ImClamp((g.IO.MousePos.x - inner_bb.Min.x) / (inner_bb.Max.x - inner_bb.Min.x), 0.0f, 0.9999f);
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const int v_idx = (int)(t * item_count);
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IM_ASSERT(v_idx >= 0 && v_idx < values_count);
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//const float v0 = values_getter(data, (v_idx + values_offset) % values_count);
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//ImGui::SetTooltip("%d: %8.4g", v_idx, v0);
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idx_hovered = v_idx;
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}
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const float t_step = 1.0f / (float)res_w;
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float t0 = 0.0f;
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ImVec2 tp0 = ImVec2( t0, 0.0f ); // Point in the normalized space of our target rectangle
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const ImU32 col_base = ImGui::GetColorU32(ImGuiCol_PlotHistogram);
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const ImU32 col_hovered = ImGui::GetColorU32(ImGuiCol_PlotHistogramHovered);
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for (int n = 0; n < res_w; n++)
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{
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const float t1 = t0 + t_step;
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const int v1_idx = (int)(t0 * item_count + 0.5f);
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IM_ASSERT(v1_idx >= 0 && v1_idx < values_count);
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const int v1 = values_getter(data, (v1_idx + values_offset) % values_count);
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ImVec2 tp1 = ImVec2( t1, 0.0f );
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for (int o = 0; o < bits; o++) {
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tp0.y=float(bits-o)/float(bits);
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tp1.y=float(bits-o-1)/float(bits);
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// NB: Draw calls are merged together by the DrawList system. Still, we should render our batch are lower level to save a bit of CPU.
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ImVec2 pos0 = ImLerp(inner_bb.Min, inner_bb.Max, tp0);
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ImVec2 pos1 = ImLerp(inner_bb.Min, inner_bb.Max, tp1);
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if (pos1.x >= pos0.x + 2.0f)
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pos1.x -= 1.0f;
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if (pos1.y <= pos0.y - 2.0f)
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pos1.y += 1.0f;
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if (v1&(1<<o)) {
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window->DrawList->AddRectFilled(pos0, pos1, idx_hovered == v1_idx ? col_hovered : col_base);
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}
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}
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tp0 = tp1;
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t0 = t1;
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}
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}
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// Text overlay
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if (overlay_text) {
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float lineHeight=ImGui::GetTextLineHeight()/2.0;
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for (int i=0; i<bits && overlay_text[i]; i++) {
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ImGui::PushStyleColor(ImGuiCol_Text,ImVec4(0,0,0,1.0f));
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ImGui::RenderTextClipped(ImVec2(frame_bb.Min.x-1, frame_bb.Min.y-lineHeight-1), ImVec2(frame_bb.Max.x-1,frame_bb.Max.y+lineHeight-1), overlay_text[i], NULL, NULL, ImVec2(0.0f, (0.5+double(bits-1-i))/double(bits)));
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ImGui::RenderTextClipped(ImVec2(frame_bb.Min.x-1, frame_bb.Min.y-lineHeight+1), ImVec2(frame_bb.Max.x-1,frame_bb.Max.y+lineHeight+1), overlay_text[i], NULL, NULL, ImVec2(0.0f, (0.5+double(bits-1-i))/double(bits)));
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ImGui::RenderTextClipped(ImVec2(frame_bb.Min.x+1, frame_bb.Min.y-lineHeight-1), ImVec2(frame_bb.Max.x+1,frame_bb.Max.y+lineHeight-1), overlay_text[i], NULL, NULL, ImVec2(0.0f, (0.5+double(bits-1-i))/double(bits)));
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ImGui::RenderTextClipped(ImVec2(frame_bb.Min.x+1, frame_bb.Min.y-lineHeight+1), ImVec2(frame_bb.Max.x+1,frame_bb.Max.y+lineHeight+1), overlay_text[i], NULL, NULL, ImVec2(0.0f, (0.5+double(bits-1-i))/double(bits)));
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ImGui::PopStyleColor();
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ImGui::RenderTextClipped(ImVec2(frame_bb.Min.x, frame_bb.Min.y-lineHeight), ImVec2(frame_bb.Max.x,frame_bb.Max.y+lineHeight), overlay_text[i], NULL, NULL, ImVec2(0.0f, (0.5+double(bits-1-i))/double(bits)));
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}
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}
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if (label_size.x > 0.0f)
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ImGui::RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, inner_bb.Min.y), label);
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// Return hovered index or -1 if none are hovered.
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// This is currently not exposed in the public API because we need a larger redesign of the whole thing, but in the short-term we are making it available in PlotEx().
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return idx_hovered;
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}
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void PlotBitfield(const char* label, const int* values, int values_count, int values_offset, const char** overlay_text, int bits, ImVec2 graph_size, int stride)
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{
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FurnacePlotIntArrayGetterData data(values, stride);
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PlotBitfieldEx(label, &Plot_IntArrayGetter, (void*)&data, values_count, values_offset, overlay_text, bits, graph_size);
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}
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int PlotCustomEx(ImGuiPlotType plot_type, const char* label, float (*values_getter)(void* data, int idx), void* data, int values_count, int values_display_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 frame_size, ImVec4 color, int highlight, std::string (*hoverFunc)(int,float), bool blockMode)
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{
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ImGuiContext& g = *GImGui;
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ImGuiWindow* window = ImGui::GetCurrentWindow();
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if (window->SkipItems)
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return -1;
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const ImGuiStyle& style = g.Style;
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const ImGuiID id = window->GetID(label);
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const ImVec2 label_size = ImGui::CalcTextSize(label, NULL, true);
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if (frame_size.x == 0.0f)
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frame_size.x = ImGui::CalcItemWidth();
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if (frame_size.y == 0.0f)
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frame_size.y = label_size.y + (style.FramePadding.y * 2);
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const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + frame_size);
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const ImRect inner_bb(frame_bb.Min + style.FramePadding, frame_bb.Max - style.FramePadding);
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const ImRect total_bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0));
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ImGui::ItemSize(total_bb, style.FramePadding.y);
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if (!ImGui::ItemAdd(total_bb, 0, &frame_bb))
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return -1;
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const bool hovered = ImGui::ItemHoverable(frame_bb, id);
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// Determine scale from values if not specified
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if (scale_min == FLT_MAX || scale_max == FLT_MAX)
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{
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float v_min = FLT_MAX;
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float v_max = -FLT_MAX;
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for (int i = 0; i < values_count; i++)
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{
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const float v = values_getter(data, i);
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if (v != v) // Ignore NaN values
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continue;
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v_min = ImMin(v_min, v);
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v_max = ImMax(v_max, v);
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}
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if (scale_min == FLT_MAX)
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scale_min = v_min;
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if (scale_max == FLT_MAX)
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scale_max = v_max;
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}
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ImU32 bgColor=ImGui::GetColorU32(ImVec4(color.x,color.y,color.z,color.w*0.15));
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ImGui::RenderFrame(frame_bb.Min, frame_bb.Max, ImGui::GetColorU32(ImGuiCol_FrameBg), true, style.FrameRounding);
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const int values_count_min = (plot_type == ImGuiPlotType_Lines) ? 2 : 1;
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int idx_hovered = -1;
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if (values_count >= values_count_min)
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{
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int res_w = ImMin((int)frame_size.x, values_count) + ((plot_type == ImGuiPlotType_Lines) ? -1 : 0);
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int item_count = values_count + ((plot_type == ImGuiPlotType_Lines) ? -1 : 0);
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// Tooltip on hover
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if (hovered && inner_bb.Contains(g.IO.MousePos))
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{
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const float t = ImClamp((g.IO.MousePos.x - inner_bb.Min.x) / (inner_bb.Max.x - inner_bb.Min.x), 0.0f, 0.9999f);
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const int v_idx = (int)(t * item_count);
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IM_ASSERT(v_idx >= 0 && v_idx < values_count);
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const float v0 = values_getter(data, (v_idx) % values_count);
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const float v1 = values_getter(data, (v_idx + 1) % values_count);
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if (hoverFunc) {
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std::string hoverText=hoverFunc(v_idx+values_display_offset,v0);
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if (!hoverText.empty()) {
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ImGui::SetTooltip("%s",hoverText.c_str());
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}
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} else {
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if (plot_type == ImGuiPlotType_Lines)
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ImGui::SetTooltip("%d: %8.4g\n%d: %8.4g", v_idx, v0, v_idx + 1, v1);
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else if (plot_type == ImGuiPlotType_Histogram)
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ImGui::SetTooltip("%d: %8.4g", v_idx+values_display_offset, v0);
|
|
}
|
|
idx_hovered = v_idx;
|
|
}
|
|
|
|
const float t_step = 1.0f / (float)res_w;
|
|
const float inv_scale = (scale_min == scale_max) ? 0.0f : (1.0f / (scale_max - scale_min));
|
|
|
|
float v0 = values_getter(data, (0) % values_count);
|
|
float t0 = 0.0f;
|
|
ImVec2 tp0 = ImVec2( t0, 1.0f - ImSaturate((v0 - scale_min) * inv_scale) ); // Point in the normalized space of our target rectangle
|
|
float histogram_zero_line_t = (scale_min * scale_max < 0.0f) ? (1 + scale_min * inv_scale) : (scale_min < 0.0f ? 0.0f : 1.0f); // Where does the zero line stands
|
|
|
|
const ImU32 col_base = ImGui::GetColorU32(color);
|
|
const ImU32 col_hovered = ImGui::GetColorU32(color);
|
|
|
|
if (highlight>0) {
|
|
window->DrawList->AddRectFilled(
|
|
ImVec2(ImLerp(inner_bb.Min, inner_bb.Max, ImVec2(0,0))),
|
|
ImVec2(ImLerp(inner_bb.Min, inner_bb.Max, ImVec2((highlight>=values_count)?1:(double(highlight)/double(values_count)),1))),
|
|
bgColor);
|
|
}
|
|
|
|
if (blockMode) {
|
|
window->DrawList->AddLine(ImLerp(inner_bb.Min,inner_bb.Max,ImVec2(0.0f,histogram_zero_line_t)),ImLerp(inner_bb.Min,inner_bb.Max,ImVec2(1.0f,histogram_zero_line_t)),col_base);
|
|
}
|
|
|
|
for (int n = 0; n < res_w; n++)
|
|
{
|
|
const float t1 = t0 + t_step;
|
|
const int v1_idx = (int)(t0 * item_count + 0.5f);
|
|
IM_ASSERT(v1_idx >= 0 && v1_idx < values_count);
|
|
const float v1 = values_getter(data, (v1_idx + 1) % values_count);
|
|
const ImVec2 tp1 = ImVec2( t1, 1.0f - ImSaturate((v1 - scale_min) * inv_scale) );
|
|
|
|
// NB: Draw calls are merged together by the DrawList system. Still, we should render our batch are lower level to save a bit of CPU.
|
|
ImVec2 pos0 = ImLerp(inner_bb.Min, inner_bb.Max, tp0);
|
|
ImVec2 pos1 = ImLerp(inner_bb.Min, inner_bb.Max, (plot_type == ImGuiPlotType_Lines) ? tp1 : ImVec2(tp1.x, blockMode?tp0.y:histogram_zero_line_t));
|
|
if (plot_type == ImGuiPlotType_Lines)
|
|
{
|
|
window->DrawList->AddLine(pos0, pos1, idx_hovered == v1_idx ? col_hovered : col_base);
|
|
}
|
|
else if (plot_type == ImGuiPlotType_Histogram)
|
|
{
|
|
if (pos1.x >= pos0.x + 2.0f)
|
|
pos1.x -= 1.0f;
|
|
if (blockMode) {
|
|
pos0.y-=(inner_bb.Max.y-inner_bb.Min.y)*inv_scale;
|
|
//pos1.y+=1.0f;
|
|
}
|
|
window->DrawList->AddRectFilled(pos0, pos1, idx_hovered == v1_idx ? col_hovered : col_base);
|
|
}
|
|
|
|
t0 = t1;
|
|
tp0 = tp1;
|
|
}
|
|
}
|
|
|
|
// Text overlay
|
|
if (overlay_text)
|
|
ImGui::RenderTextClipped(ImVec2(frame_bb.Min.x, frame_bb.Min.y + style.FramePadding.y), frame_bb.Max, overlay_text, NULL, NULL, ImVec2(0.5f, 0.0f));
|
|
|
|
if (label_size.x > 0.0f)
|
|
ImGui::RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, inner_bb.Min.y), label);
|
|
|
|
// Return hovered index or -1 if none are hovered.
|
|
// This is currently not exposed in the public API because we need a larger redesign of the whole thing, but in the short-term we are making it available in PlotEx().
|
|
return idx_hovered;
|
|
}
|
|
|
|
void PlotCustom(const char* label, const float* values, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 graph_size, int stride, ImVec4 color, int highlight, std::string (*hoverFunc)(int,float), bool blockMode)
|
|
{
|
|
FurnacePlotArrayGetterData data(values, stride);
|
|
PlotCustomEx(ImGuiPlotType_Histogram, label, &Plot_ArrayGetter, (void*)&data, values_count, values_offset, overlay_text, scale_min, scale_max, graph_size, color, highlight, hoverFunc, blockMode);
|
|
} |