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# Conflicts:
#	imgui.cpp
This commit is contained in:
omar 2018-02-05 14:55:57 +01:00
commit 533fe8cb55
5 changed files with 24 additions and 4 deletions
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9
examples/apple_example/imguiex-ios/debug_hud.cpp
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@ -22,6 +22,11 @@ void DebugHUD_InitDefaults( DebugHUD *hud )
hud->cubeColor2[1] = 0.4f;
hud->cubeColor2[2] = 0.4f;
hud->cubeColor2[3] = 1.0f;
hud->clearColor[0] = 0.45f;
hud->clearColor[1] = 0.55f;
hud->clearColor[2] = 0.60f;
hud->clearColor[3] = 1.00f;
}
void DebugHUD_DoInterface(DebugHUD *hud)
@ -33,7 +38,7 @@ void DebugHUD_DoInterface(DebugHUD *hud)
static int counter = 0;
ImGui::Text("Hello, world!"); // Display some text (you can use a format string too)
ImGui::SliderFloat("float", &f, 0.0f, 1.0f); // Edit 1 float using a slider from 0.0f to 1.0f
ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats representing a color
ImGui::ColorEdit3("clear color", hud->clearColor); // Edit 3 floats representing a color
ImGui::Checkbox("Demo Window", &hud->show_demo_window); // Edit bools storing our windows open/close state
ImGui::Checkbox("Another Window", &hud->show_another_window);
@ -49,7 +54,7 @@ void DebugHUD_DoInterface(DebugHUD *hud)
// 2. Show another simple window. In most cases you will use an explicit Begin/End pair to name your windows.
if (hud->show_another_window)
{
ImGui::Begin("Another Window", &hud-?show_another_window);
ImGui::Begin("Another Window", &hud->show_another_window);
ImGui::Text("Hello from another window!");
ImGui::ColorEdit3("Cube 1 Color", hud->cubeColor1);
ImGui::ColorEdit3("Cube 2 Color", hud->cubeColor2);

1
examples/apple_example/imguiex-ios/debug_hud.h
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@ -11,6 +11,7 @@ typedef struct DebugHUD
float rotation_speed;
float cubeColor1[4];
float cubeColor2[4];
float clearColor[4];
} DebugHUD;
#if __cplusplus

6
imgui.cpp
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@ -5834,7 +5834,8 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
// Title bar only
float backup_border_size = style.FrameBorderSize;
g.Style.FrameBorderSize = window->WindowBorderSize;
RenderFrame(title_bar_rect.Min, title_bar_rect.Max, GetColorU32((window_is_focused && !g.NavDisableHighlight) ? ImGuiCol_TitleBgActive : ImGuiCol_TitleBgCollapsed), true, window_rounding);
ImU32 title_bar_col = GetColorU32((window_is_focused && !g.NavDisableHighlight) ? ImGuiCol_TitleBgActive : ImGuiCol_TitleBgCollapsed);
RenderFrame(title_bar_rect.Min, title_bar_rect.Max, title_bar_col, true, window_rounding);
g.Style.FrameBorderSize = backup_border_size;
}
else
@ -5849,8 +5850,9 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
window->DrawList->AddRectFilled(window->Pos+ImVec2(0,window->TitleBarHeight()), window->Pos+window->Size, bg_col, window_rounding, (flags & ImGuiWindowFlags_NoTitleBar) ? ImDrawCornerFlags_All : ImDrawCornerFlags_Bot);
// Title bar
ImU32 title_bar_col = GetColorU32(window->Collapsed ? ImGuiCol_TitleBgCollapsed : window_is_focused ? ImGuiCol_TitleBgActive : ImGuiCol_TitleBg);
if (!(flags & ImGuiWindowFlags_NoTitleBar))
window->DrawList->AddRectFilled(title_bar_rect.Min, title_bar_rect.Max, GetColorU32(window_is_focused ? ImGuiCol_TitleBgActive : ImGuiCol_TitleBg), window_rounding, ImDrawCornerFlags_Top);
window->DrawList->AddRectFilled(title_bar_rect.Min, title_bar_rect.Max, title_bar_col, window_rounding, ImDrawCornerFlags_Top);
// Menu bar
if (flags & ImGuiWindowFlags_MenuBar)

6
misc/freetype/README.md
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@ -17,6 +17,12 @@ ImGuiFreeType::BuildFontAtlas(io.Fonts, flags);
io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
```
**Gamma Correct Blending**
FreeType assumes blending in linear space rather than gamma space.
See FreeType note for [FT_Render_Glyph](https://www.freetype.org/freetype2/docs/reference/ft2-base_interface.html#FT_Render_Glyph).
For correct results you need to be using sRGB and convert to linear space in the pixel shader output.
The default imgui styles will be impacted by this change (alpha values will need tweaking).
**Test code Usage**
```cpp
#include "misc/freetype/imgui_freetype.h"

6
misc/freetype/imgui_freetype.cpp
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@ -10,6 +10,12 @@
// - v0.54: (2018/01/22) fix for addition of ImFontAtlas::TexUvscale member
// - v0.55: (2018/02/04) moved to main imgui repository (away from http://www.github.com/ocornut/imgui_club)
// Gamma Correct Blending:
// FreeType assumes blending in linear space rather than gamma space.
// See https://www.freetype.org/freetype2/docs/reference/ft2-base_interface.html#FT_Render_Glyph
// For correct results you need to be using sRGB and convert to linear space in the pixel shader output.
// The default imgui styles will be impacted by this change (alpha values will need tweaking).
// TODO:
// - Output texture has excessive resolution (lots of vertical waste)
// - FreeType's memory allocator is not overridden.