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ImFontAtlas: Added IsBuilt() helper.

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omar 2018-02-16 21:37:47 +01:00
parent 1399c9c8a9
commit 8d0723c2c3
1 changed files with 2 additions and 1 deletions
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imgui.h
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@ -1627,7 +1627,7 @@ enum ImFontAtlasFlags_
// 2. Call GetTexDataAsAlpha8() or GetTexDataAsRGBA32() to build and retrieve pixels data. // 2. Call GetTexDataAsAlpha8() or GetTexDataAsRGBA32() to build and retrieve pixels data.
// 3. Upload the pixels data into a texture within your graphics system. // 3. Upload the pixels data into a texture within your graphics system.
// 4. Call SetTexID(my_tex_id); and pass the pointer/identifier to your texture. This value will be passed back to you during rendering to identify the texture. // 4. Call SetTexID(my_tex_id); and pass the pointer/identifier to your texture. This value will be passed back to you during rendering to identify the texture.
// IMPORTANT: If you pass a 'glyph_ranges' array to AddFont*** functions, you need to make sure that your array persist up until the ImFont is build (when calling GetTextData*** or Build()). We only copy the pointer, not the data. // IMPORTANT: If you pass a 'glyph_ranges' array to AddFont*** functions, you need to make sure that your array persist up until the ImFont is build (when calling GetTexData*** or Build()). We only copy the pointer, not the data.
struct ImFontAtlas struct ImFontAtlas
{ {
IMGUI_API ImFontAtlas(); IMGUI_API ImFontAtlas();
@ -1648,6 +1648,7 @@ struct ImFontAtlas
// RGBA32 format is provided for convenience and compatibility, but note that unless you use CustomRect to draw color data, the RGB pixels emitted from Fonts will all be white (~75% of waste). // RGBA32 format is provided for convenience and compatibility, but note that unless you use CustomRect to draw color data, the RGB pixels emitted from Fonts will all be white (~75% of waste).
// Pitch = Width * BytesPerPixels // Pitch = Width * BytesPerPixels
IMGUI_API bool Build(); // Build pixels data. This is called automatically for you by the GetTexData*** functions. IMGUI_API bool Build(); // Build pixels data. This is called automatically for you by the GetTexData*** functions.
IMGUI_API bool IsBuilt() { return Fonts.Size > 0 && (TexPixelsAlpha8 != NULL || TexPixelsRGBA32 != NULL); }
IMGUI_API void GetTexDataAsAlpha8(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel = NULL); // 1 byte per-pixel IMGUI_API void GetTexDataAsAlpha8(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel = NULL); // 1 byte per-pixel
IMGUI_API void GetTexDataAsRGBA32(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel = NULL); // 4 bytes-per-pixel IMGUI_API void GetTexDataAsRGBA32(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel = NULL); // 4 bytes-per-pixel
void SetTexID(ImTextureID id) { TexID = id; } void SetTexID(ImTextureID id) { TexID = id; }