Method RenderText

SHTest/SampleFramework12/v1.04/Graphics/SpriteRenderer.cpp:163–209

}

void SpriteRenderer::RenderText(ID3D12GraphicsCommandList* cmdList, const SpriteFont& font,
                                const wchar* text, Float2 position, const Float4& color)
{
    Assert_(text != nullptr);

    const uint64 numChars = wcslen(text);

    SpriteTransform textTransform = SpriteTransform(position);

    uint64 numCharsLeft = numChars;
    for(uint64 offset = 0; offset < numChars; offset += MaxBatchSize)
    {
        uint64 numCharsToDraw = Min<uint64>(numChars, MaxBatchSize);
        uint64 currentDraw = 0;

        for(uint64 i = 0; i < numCharsToDraw; ++i)
        {
            wchar character = text[i + offset];
            if(character == ' ')
                textTransform.Position.x += font.SpaceWidth();
            else if(character == '\n')
            {
                textTransform.Position.y += font.CharHeight();
                textTransform.Position.x = 0;
            }
            else
            {
                SpriteFont::CharDesc desc = font.GetCharDescriptor(character);

                textDrawData[currentDraw].Transform = textTransform;
                textDrawData[currentDraw].Color = color;
                textDrawData[currentDraw].DrawRect.x = desc.X;
                textDrawData[currentDraw].DrawRect.y = desc.Y;
                textDrawData[currentDraw].DrawRect.z = desc.Width;
                textDrawData[currentDraw].DrawRect.w = desc.Height;

                textTransform.Position.x += desc.Width + 1;

                ++currentDraw;
            }
        }

        RenderBatch(cmdList, font.FontTexture(), textDrawData, currentDraw);

        numCharsLeft -= numCharsToDraw;
    }
}

void SpriteRenderer::End()
{