Skip to content

Commit

Permalink
Updated ImGui.
Browse files Browse the repository at this point in the history
  • Loading branch information
@bkaradzic
bkaradzic committed Nov 4, 2023
1 parent c9cebd1 commit 6a914f5
Show file tree
Hide file tree
Showing 7 changed files with 1,815 additions and 716 deletions.
875 changes: 561 additions & 314 deletions 3rdparty/dear-imgui/imgui.cpp
View file

Large diffs are not rendered by default.

206 changes: 123 additions & 83 deletions 3rdparty/dear-imgui/imgui.h
View file

Large diffs are not rendered by default.

265 changes: 214 additions & 51 deletions 3rdparty/dear-imgui/imgui_demo.cpp
View file

Large diffs are not rendered by default.

153 changes: 113 additions & 40 deletions 3rdparty/dear-imgui/imgui_draw.cpp
View file
Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
// dear imgui, v1.89.9
// dear imgui, v1.90 WIP
// (drawing and font code)

/*
Expand Down Expand Up @@ -135,7 +135,7 @@ namespace IMGUI_STB_NAMESPACE
#define STBTT_sqrt(x) ImSqrt(x)
#define STBTT_pow(x,y) ImPow(x,y)
#define STBTT_fabs(x) ImFabs(x)
#define STBTT_ifloor(x) ((int)ImFloorSigned(x))
#define STBTT_ifloor(x) ((int)ImFloor(x))
#define STBTT_iceil(x) ((int)ImCeil(x))
#define STBTT_STATIC
#define STB_TRUETYPE_IMPLEMENTATION
Expand Down Expand Up @@ -1191,8 +1191,8 @@ void ImDrawList::PathArcTo(const ImVec2& center, float radius, float a_min, floa
const float a_min_sample_f = IM_DRAWLIST_ARCFAST_SAMPLE_MAX * a_min / (IM_PI * 2.0f);
const float a_max_sample_f = IM_DRAWLIST_ARCFAST_SAMPLE_MAX * a_max / (IM_PI * 2.0f);

const int a_min_sample = a_is_reverse ? (int)ImFloorSigned(a_min_sample_f) : (int)ImCeil(a_min_sample_f);
const int a_max_sample = a_is_reverse ? (int)ImCeil(a_max_sample_f) : (int)ImFloorSigned(a_max_sample_f);
const int a_min_sample = a_is_reverse ? (int)ImFloor(a_min_sample_f) : (int)ImCeil(a_min_sample_f);
const int a_max_sample = a_is_reverse ? (int)ImCeil(a_max_sample_f) : (int)ImFloor(a_max_sample_f);
const int a_mid_samples = a_is_reverse ? ImMax(a_min_sample - a_max_sample, 0) : ImMax(a_max_sample - a_min_sample, 0);

const float a_min_segment_angle = a_min_sample * IM_PI * 2.0f / IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
Expand All @@ -1217,6 +1217,27 @@ void ImDrawList::PathArcTo(const ImVec2& center, float radius, float a_min, floa
}
}

void ImDrawList::PathEllipticalArcTo(const ImVec2& center, float radius_x, float radius_y, float rot, float a_min, float a_max, int num_segments)
{
if (num_segments <= 0)
num_segments = _CalcCircleAutoSegmentCount(ImMax(radius_x, radius_y)); // A bit pessimistic, maybe there's a better computation to do here.

_Path.reserve(_Path.Size + (num_segments + 1));

const float cos_rot = ImCos(rot);
const float sin_rot = ImSin(rot);
for (int i = 0; i <= num_segments; i++)
{
const float a = a_min + ((float)i / (float)num_segments) * (a_max - a_min);
ImVec2 point(ImCos(a) * radius_x, ImSin(a) * radius_y);
const float rel_x = (point.x * cos_rot) - (point.y * sin_rot);
const float rel_y = (point.x * sin_rot) + (point.y * cos_rot);
point.x = rel_x + center.x;
point.y = rel_y + center.y;
_Path.push_back(point);
}
}

ImVec2 ImBezierCubicCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, float t)
{
float u = 1.0f - t;
Expand Down Expand Up @@ -1312,33 +1333,22 @@ void ImDrawList::PathBezierQuadraticCurveTo(const ImVec2& p2, const ImVec2& p3,
}
}

IM_STATIC_ASSERT(ImDrawFlags_RoundCornersTopLeft == (1 << 4));
static inline ImDrawFlags FixRectCornerFlags(ImDrawFlags flags)
{
/*
IM_STATIC_ASSERT(ImDrawFlags_RoundCornersTopLeft == (1 << 4));
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
// Obsoleted in 1.82 (from February 2021)
// Legacy Support for hard coded ~0 (used to be a suggested equivalent to ImDrawCornerFlags_All)
// ~0 --> ImDrawFlags_RoundCornersAll or 0
if (flags == ~0)
return ImDrawFlags_RoundCornersAll;

// Legacy Support for hard coded 0x01 to 0x0F (matching 15 out of 16 old flags combinations)
// 0x01 --> ImDrawFlags_RoundCornersTopLeft (VALUE 0x01 OVERLAPS ImDrawFlags_Closed but ImDrawFlags_Closed is never valid in this path!)
// 0x02 --> ImDrawFlags_RoundCornersTopRight
// 0x03 --> ImDrawFlags_RoundCornersTopLeft | ImDrawFlags_RoundCornersTopRight
// 0x04 --> ImDrawFlags_RoundCornersBotLeft
// 0x05 --> ImDrawFlags_RoundCornersTopLeft | ImDrawFlags_RoundCornersBotLeft
// ...
// 0x0F --> ImDrawFlags_RoundCornersAll or 0
// (See all values in ImDrawCornerFlags_)
if (flags >= 0x01 && flags <= 0x0F)
return (flags << 4);

// Obsoleted in 1.82 (from February 2021). This code was stripped/simplified and mostly commented in 1.90 (from September 2023)
// - Legacy Support for hard coded ~0 (used to be a suggested equivalent to ImDrawCornerFlags_All)
if (flags == ~0) { return ImDrawFlags_RoundCornersAll; }
// - Legacy Support for hard coded 0x01 to 0x0F (matching 15 out of 16 old flags combinations). Read details in older version of this code.
if (flags >= 0x01 && flags <= 0x0F) { return (flags << 4); }
// We cannot support hard coded 0x00 with 'float rounding > 0.0f' --> replace with ImDrawFlags_RoundCornersNone or use 'float rounding = 0.0f'
#endif

// If this triggers, please update your code replacing hardcoded values with new ImDrawFlags_RoundCorners* values.
// Note that ImDrawFlags_Closed (== 0x01) is an invalid flag for AddRect(), AddRectFilled(), PathRect() etc...
*/
// If this assert triggers, please update your code replacing hardcoded values with new ImDrawFlags_RoundCorners* values.
// Note that ImDrawFlags_Closed (== 0x01) is an invalid flag for AddRect(), AddRectFilled(), PathRect() etc. anyway.
// See details in 1.82 Changelog as well as 2021/03/12 and 2023/09/08 entries in "API BREAKING CHANGES" section.
IM_ASSERT((flags & 0x0F) == 0 && "Misuse of legacy hardcoded ImDrawCornerFlags values!");

if ((flags & ImDrawFlags_RoundCornersMask_) == 0)
Expand Down Expand Up @@ -1547,6 +1557,35 @@ void ImDrawList::AddNgonFilled(const ImVec2& center, float radius, ImU32 col, in
PathFillConvex(col);
}

// Ellipse
void ImDrawList::AddEllipse(const ImVec2& center, float radius_x, float radius_y, ImU32 col, float rot, int num_segments, float thickness)
{
if ((col & IM_COL32_A_MASK) == 0)
return;

if (num_segments <= 0)
num_segments = _CalcCircleAutoSegmentCount(ImMax(radius_x, radius_y)); // A bit pessimistic, maybe there's a better computation to do here.

// Because we are filling a closed shape we remove 1 from the count of segments/points
const float a_max = IM_PI * 2.0f * ((float)num_segments - 1.0f) / (float)num_segments;
PathEllipticalArcTo(center, radius_x, radius_y, rot, 0.0f, a_max, num_segments - 1);
PathStroke(col, true, thickness);
}

void ImDrawList::AddEllipseFilled(const ImVec2& center, float radius_x, float radius_y, ImU32 col, float rot, int num_segments)
{
if ((col & IM_COL32_A_MASK) == 0)
return;

if (num_segments <= 0)
num_segments = _CalcCircleAutoSegmentCount(ImMax(radius_x, radius_y)); // A bit pessimistic, maybe there's a better computation to do here.

// Because we are filling a closed shape we remove 1 from the count of segments/points
const float a_max = IM_PI * 2.0f * ((float)num_segments - 1.0f) / (float)num_segments;
PathEllipticalArcTo(center, radius_x, radius_y, rot, 0.0f, a_max, num_segments - 1);
PathFillConvex(col);
}

// Cubic Bezier takes 4 controls points
void ImDrawList::AddBezierCubic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness, int num_segments)
{
Expand Down Expand Up @@ -1950,6 +1989,14 @@ void ImGui::ShadeVertsLinearUV(ImDrawList* draw_list, int vert_start_idx, int ve
}
}

void ImGui::ShadeVertsTransformPos(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, const ImVec2& pivot_in, float cos_a, float sin_a, const ImVec2& pivot_out)
{
ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
vertex->pos = ImRotate(vertex->pos- pivot_in, cos_a, sin_a) + pivot_out;
}

//-----------------------------------------------------------------------------
// [SECTION] ImFontConfig
//-----------------------------------------------------------------------------
Expand Down Expand Up @@ -2144,6 +2191,8 @@ ImFont* ImFontAtlas::AddFont(const ImFontConfig* font_cfg)
if (new_font_cfg.DstFont->EllipsisChar == (ImWchar)-1)
new_font_cfg.DstFont->EllipsisChar = font_cfg->EllipsisChar;

ImFontAtlasUpdateConfigDataPointers(this);

// Invalidate texture
TexReady = false;
ClearTexData();
Expand Down Expand Up @@ -2180,7 +2229,7 @@ ImFont* ImFontAtlas::AddFontDefault(const ImFontConfig* font_cfg_template)
if (font_cfg.Name[0] == '\0')
ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "ProggyClean.ttf, %dpx", (int)font_cfg.SizePixels);
font_cfg.EllipsisChar = (ImWchar)0x0085;
font_cfg.GlyphOffset.y = 1.0f * IM_FLOOR(font_cfg.SizePixels / 13.0f); // Add +1 offset per 13 units
font_cfg.GlyphOffset.y = 1.0f * IM_TRUNC(font_cfg.SizePixels / 13.0f); // Add +1 offset per 13 units

const char* ttf_compressed_base85 = GetDefaultCompressedFontDataTTFBase85();
const ImWchar* glyph_ranges = font_cfg.GlyphRanges != NULL ? font_cfg.GlyphRanges : GetGlyphRangesDefault();
Expand Down Expand Up @@ -2210,13 +2259,14 @@ ImFont* ImFontAtlas::AddFontFromFileTTF(const char* filename, float size_pixels,
}

// NB: Transfer ownership of 'ttf_data' to ImFontAtlas, unless font_cfg_template->FontDataOwnedByAtlas == false. Owned TTF buffer will be deleted after Build().
ImFont* ImFontAtlas::AddFontFromMemoryTTF(void* ttf_data, int ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
ImFont* ImFontAtlas::AddFontFromMemoryTTF(void* font_data, int font_data_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
{
IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
IM_ASSERT(font_cfg.FontData == NULL);
font_cfg.FontData = ttf_data;
font_cfg.FontDataSize = ttf_size;
IM_ASSERT(font_data_size > 100 && "Incorrect value for font_data_size!"); // Heuristic to prevent accidentally passing a wrong value to font_data_size.
font_cfg.FontData = font_data;
font_cfg.FontDataSize = font_data_size;
font_cfg.SizePixels = size_pixels > 0.0f ? size_pixels : font_cfg.SizePixels;
if (glyph_ranges)
font_cfg.GlyphRanges = glyph_ranges;
Expand Down Expand Up @@ -2431,7 +2481,10 @@ static bool ImFontAtlasBuildWithStbTruetype(ImFontAtlas* atlas)
const int font_offset = stbtt_GetFontOffsetForIndex((unsigned char*)cfg.FontData, cfg.FontNo);
IM_ASSERT(font_offset >= 0 && "FontData is incorrect, or FontNo cannot be found.");
if (!stbtt_InitFont(&src_tmp.FontInfo, (unsigned char*)cfg.FontData, font_offset))
{
IM_ASSERT(0 && "stbtt_InitFont(): failed to parse FontData. It is correct and complete? Check FontDataSize.");
return false;
}

// Measure highest codepoints
ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
Expand Down Expand Up @@ -2618,8 +2671,8 @@ static bool ImFontAtlasBuildWithStbTruetype(ImFontAtlas* atlas)
int unscaled_ascent, unscaled_descent, unscaled_line_gap;
stbtt_GetFontVMetrics(&src_tmp.FontInfo, &unscaled_ascent, &unscaled_descent, &unscaled_line_gap);

const float ascent = ImFloor(unscaled_ascent * font_scale + ((unscaled_ascent > 0.0f) ? +1 : -1));
const float descent = ImFloor(unscaled_descent * font_scale + ((unscaled_descent > 0.0f) ? +1 : -1));
const float ascent = ImTrunc(unscaled_ascent * font_scale + ((unscaled_ascent > 0.0f) ? +1 : -1));
const float descent = ImTrunc(unscaled_descent * font_scale + ((unscaled_descent > 0.0f) ? +1 : -1));
ImFontAtlasBuildSetupFont(atlas, dst_font, &cfg, ascent, descent);
const float font_off_x = cfg.GlyphOffset.x;
const float font_off_y = cfg.GlyphOffset.y + IM_ROUND(dst_font->Ascent);
Expand Down Expand Up @@ -2652,19 +2705,31 @@ const ImFontBuilderIO* ImFontAtlasGetBuilderForStbTruetype()

#endif // IMGUI_ENABLE_STB_TRUETYPE

void ImFontAtlasUpdateConfigDataPointers(ImFontAtlas* atlas)
{
for (ImFontConfig& font_cfg : atlas->ConfigData)
{
ImFont* font = font_cfg.DstFont;
if (!font_cfg.MergeMode)
{
font->ConfigData = &font_cfg;
font->ConfigDataCount = 0;
}
font->ConfigDataCount++;
}
}

void ImFontAtlasBuildSetupFont(ImFontAtlas* atlas, ImFont* font, ImFontConfig* font_config, float ascent, float descent)
{
if (!font_config->MergeMode)
{
font->ClearOutputData();
font->FontSize = font_config->SizePixels;
font->ConfigData = font_config;
font->ConfigDataCount = 0;
IM_ASSERT(font->ConfigData == font_config);
font->ContainerAtlas = atlas;
font->Ascent = ascent;
font->Descent = descent;
}
font->ConfigDataCount++;
}

void ImFontAtlasBuildPackCustomRects(ImFontAtlas* atlas, void* stbrp_context_opaque)
Expand Down Expand Up @@ -2811,6 +2876,13 @@ static void ImFontAtlasBuildRenderLinesTexData(ImFontAtlas* atlas)
// Note: this is called / shared by both the stb_truetype and the FreeType builder
void ImFontAtlasBuildInit(ImFontAtlas* atlas)
{
// Round font size
// - We started rounding in 1.90 WIP (18991) as our layout system currently doesn't support non-rounded font size well yet.
// - Note that using io.FontGlobalScale or SetWindowFontScale(), with are legacy-ish, partially supported features, can still lead to unrounded sizes.
// - We may support it better later and remove this rounding.
for (ImFontConfig& cfg : atlas->ConfigData)
cfg.SizePixels = ImTrunc(cfg.SizePixels);

// Register texture region for mouse cursors or standard white pixels
if (atlas->PackIdMouseCursors < 0)
{
Expand Down Expand Up @@ -3219,6 +3291,7 @@ void ImFont::BuildLookupTable()
max_codepoint = ImMax(max_codepoint, (int)Glyphs[i].Codepoint);

// Build lookup table
IM_ASSERT(Glyphs.Size > 0 && "Font has not loaded glyph!");
IM_ASSERT(Glyphs.Size < 0xFFFF); // -1 is reserved
IndexAdvanceX.clear();
IndexLookup.clear();
Expand Down Expand Up @@ -3335,7 +3408,7 @@ void ImFont::AddGlyph(const ImFontConfig* cfg, ImWchar codepoint, float x0, floa
advance_x = ImClamp(advance_x, cfg->GlyphMinAdvanceX, cfg->GlyphMaxAdvanceX);
if (advance_x != advance_x_original)
{
float char_off_x = cfg->PixelSnapH ? ImFloor((advance_x - advance_x_original) * 0.5f) : (advance_x - advance_x_original) * 0.5f;
float char_off_x = cfg->PixelSnapH ? ImTrunc((advance_x - advance_x_original) * 0.5f) : (advance_x - advance_x_original) * 0.5f;
x0 += char_off_x;
x1 += char_off_x;
}
Expand Down Expand Up @@ -3603,8 +3676,8 @@ void ImFont::RenderChar(ImDrawList* draw_list, float size, const ImVec2& pos, Im
if (glyph->Colored)
col |= ~IM_COL32_A_MASK;
float scale = (size >= 0.0f) ? (size / FontSize) : 1.0f;
float x = IM_FLOOR(pos.x);
float y = IM_FLOOR(pos.y);
float x = IM_TRUNC(pos.x);
float y = IM_TRUNC(pos.y);
draw_list->PrimReserve(6, 4);
draw_list->PrimRectUV(ImVec2(x + glyph->X0 * scale, y + glyph->Y0 * scale), ImVec2(x + glyph->X1 * scale, y + glyph->Y1 * scale), ImVec2(glyph->U0, glyph->V0), ImVec2(glyph->U1, glyph->V1), col);
}
Expand All @@ -3616,8 +3689,8 @@ void ImFont::RenderText(ImDrawList* draw_list, float size, const ImVec2& pos, Im
text_end = text_begin + strlen(text_begin); // ImGui:: functions generally already provides a valid text_end, so this is merely to handle direct calls.

// Align to be pixel perfect
float x = IM_FLOOR(pos.x);
float y = IM_FLOOR(pos.y);
float x = IM_TRUNC(pos.x);
float y = IM_TRUNC(pos.y);
if (y > clip_rect.w)
return;

Expand Down
Loading

0 comments on commit 6a914f5

Please sign in to comment.