Function ImFontAtlasBuildRenderDefaultTexData

KBotExt/imgui/imgui_draw.cpp:2719–2757

}

static void ImFontAtlasBuildRenderDefaultTexData(ImFontAtlas* atlas)
{
	ImFontAtlasCustomRect* r = atlas->GetCustomRectByIndex(atlas->PackIdMouseCursors);
	IM_ASSERT(r->IsPacked());

	const int w = atlas->TexWidth;
	if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
	{
		// Render/copy pixels
		IM_ASSERT(r->Width == FONT_ATLAS_DEFAULT_TEX_DATA_W * 2 + 1 && r->Height == FONT_ATLAS_DEFAULT_TEX_DATA_H);
		const int x_for_white = r->X;
		const int x_for_black = r->X + FONT_ATLAS_DEFAULT_TEX_DATA_W + 1;
		if (atlas->TexPixelsAlpha8 != NULL)
		{
			ImFontAtlasBuildRender8bppRectFromString(atlas, x_for_white, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, '.', 0xFF);
			ImFontAtlasBuildRender8bppRectFromString(atlas, x_for_black, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, 'X', 0xFF);
		}
		else
		{
			ImFontAtlasBuildRender32bppRectFromString(atlas, x_for_white, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, '.', IM_COL32_WHITE);
			ImFontAtlasBuildRender32bppRectFromString(atlas, x_for_black, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, 'X', IM_COL32_WHITE);
		}
	}
	else
	{
		// Render 4 white pixels
		IM_ASSERT(r->Width == 2 && r->Height == 2);
		const int offset = (int)r->X + (int)r->Y * w;
		if (atlas->TexPixelsAlpha8 != NULL)
		{
			atlas->TexPixelsAlpha8[offset] = atlas->TexPixelsAlpha8[offset + 1] = atlas->TexPixelsAlpha8[offset + w] = atlas->TexPixelsAlpha8[offset + w + 1] = 0xFF;
		}
		else
		{
			atlas->TexPixelsRGBA32[offset] = atlas->TexPixelsRGBA32[offset + 1] = atlas->TexPixelsRGBA32[offset + w] = atlas->TexPixelsRGBA32[offset + w + 1] = IM_COL32_WHITE;
		}
	}
	atlas->TexUvWhitePixel = ImVec2((r->X + 0.5f) * atlas->TexUvScale.x, (r->Y + 0.5f) * atlas->TexUvScale.y);
}

static void ImFontAtlasBuildRenderLinesTexData(ImFontAtlas* atlas)
{