internal GPUBufferedString(VGFont font, bool preferVRAM)
: base(font)
{
if (!font.IsStatic)
throw new ArgumentException("Font must be static for full GPU rendering!", "font");
_preferVRAM = preferVRAM;
}
public void DrawText(VGFont font, uint glyphCount, byte[] utf32Text, PaintMode paintModes, bool allowAutoHinting)
{
unsafe
{
int mm = matrixMode;
// Get current matrix:
float *m = stackalloc float[9];
vgGetMatrix(m);
// Switch to image matrix if not already:
if (mm != (int)MatrixMode.VG_MATRIX_IMAGE_USER_TO_SURFACE)
{
vgSeti(ParamType.VG_MATRIX_MODE, (int)MatrixMode.VG_MATRIX_IMAGE_USER_TO_SURFACE);
vgLoadMatrix(m);
}
//VG_MATRIX_IMAGE_USER_TO_SURFACE
// Render text:
fixed(byte *bytes = utf32Text)
{
uint *p = (uint *)bytes;
for (uint i = 0; i < glyphCount; i++, p++)
{
//vgDrawGlyph(textFont, *p, (uint)paintModes, 0U);
// Translate to origin of glyph:
var origin = font.Origins[*p];
vgTranslate(-origin[0], -origin[1]);
// Draw the image:
vgDrawImage(font.Images[*p]);
// Undo origin translation:
vgTranslate(origin[0], origin[1]);
// Advance to next glyph position:
var escapement = font.Escapements[*p];
vgTranslate(escapement[0], escapement[1]);
}
}
// Restore previous matrix mode:
if (mm != (int)MatrixMode.VG_MATRIX_IMAGE_USER_TO_SURFACE)
{
vgSeti(ParamType.VG_MATRIX_MODE, mm);
}
// Restore old matrix:
vgLoadMatrix(m);
}
}
internal CPUString(VGFont font)
: base(font)
{
}
