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Fix to allow compiling in unity builds where stb_rectpack/stb_truetype may be already included in the same compilation unit.

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This commit is contained in:
omar
2018-05-08 11:02:38 +02:00
parent f13f10e725
commit 280c05e4f8
3 changed files with 7 additions and 2 deletions
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1
CHANGELOG.txt
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@@ -69,6 +69,7 @@ Other Changes:
- Fonts: When building font atlas, glyphs that are missing in the fonts are not using the glyph slot to render a dummy/default glyph. Saves space and allow merging fonts with - Fonts: When building font atlas, glyphs that are missing in the fonts are not using the glyph slot to render a dummy/default glyph. Saves space and allow merging fonts with
overlapping font ranges such as FontAwesome5 which split out the Brands separately from the Solid fonts. (#1703, #1671) overlapping font ranges such as FontAwesome5 which split out the Brands separately from the Solid fonts. (#1703, #1671)
- Misc: Added IMGUI_CHECKVERSION() macro to compare version string and data structure sizes in order to catch issues with mismatching compilation unit settings. (#1695, #1769) - Misc: Added IMGUI_CHECKVERSION() macro to compare version string and data structure sizes in order to catch issues with mismatching compilation unit settings. (#1695, #1769)
- Misc: Fix to allow compiling in unity builds where stb_rectpack/stb_truetype may be already included in the same compilation unit.
- Demo: Fixed Overlay: Added a context menu item to enable freely moving the window. - Demo: Fixed Overlay: Added a context menu item to enable freely moving the window.
- Examples: Calling IMGUI_CHECKVERSION() in the main.cpp of every example application. - Examples: Calling IMGUI_CHECKVERSION() in the main.cpp of every example application.
- Examples: Allegro 5: Added support for 32-bit indices setup via defining ImDrawIdx, to avoid an unnecessary conversion (Allegro 5 doesn't support 16-bit indices). - Examples: Allegro 5: Added support for 32-bit indices setup via defining ImDrawIdx, to avoid an unnecessary conversion (Allegro 5 doesn't support 16-bit indices).

4
imgui.cpp
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@@ -2594,10 +2594,10 @@ float ImGui::CalcWrapWidthForPos(const ImVec2& pos, float wrap_pos_x)
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
void* ImGui::MemAlloc(size_t sz) void* ImGui::MemAlloc(size_t size)
{ {
GImAllocatorActiveAllocationsCount++; GImAllocatorActiveAllocationsCount++;
return GImAllocatorAllocFunc(sz, GImAllocatorUserData); return GImAllocatorAllocFunc(size, GImAllocatorUserData);
} }
void ImGui::MemFree(void* ptr) void ImGui::MemFree(void* ptr)

4
imgui_draw.cpp
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@@ -91,6 +91,7 @@ namespace IMGUI_STB_NAMESPACE
#pragma GCC diagnostic ignored "-Wcast-qual" // warning: cast from type 'const xxxx *' to type 'xxxx *' casts away qualifiers #pragma GCC diagnostic ignored "-Wcast-qual" // warning: cast from type 'const xxxx *' to type 'xxxx *' casts away qualifiers
#endif #endif
#ifndef STB_RECT_PACK_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
#ifndef IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION #ifndef IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
#define STBRP_STATIC #define STBRP_STATIC
#define STBRP_ASSERT(x) IM_ASSERT(x) #define STBRP_ASSERT(x) IM_ASSERT(x)
@@ -101,7 +102,9 @@ namespace IMGUI_STB_NAMESPACE
#else #else
#include "stb_rect_pack.h" #include "stb_rect_pack.h"
#endif #endif
#endif
#ifndef STB_TRUETYPE_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
#ifndef IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION #ifndef IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
#define STBTT_malloc(x,u) ((void)(u), ImGui::MemAlloc(x)) #define STBTT_malloc(x,u) ((void)(u), ImGui::MemAlloc(x))
#define STBTT_free(x,u) ((void)(u), ImGui::MemFree(x)) #define STBTT_free(x,u) ((void)(u), ImGui::MemFree(x))
@@ -116,6 +119,7 @@ namespace IMGUI_STB_NAMESPACE
#else #else
#include "stb_truetype.h" #include "stb_truetype.h"
#endif #endif
#endif
#ifdef __GNUC__ #ifdef __GNUC__
#pragma GCC diagnostic pop #pragma GCC diagnostic pop