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[CHG] Small speed improvement in TTF code (R, G and B are only calculated once for every character)

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Crayon2000 2010-02-10 23:42:32 +00:00
parent e2a5255922
commit 3fc551e45e
1 changed files with 4 additions and 4 deletions
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8
GRRLIB/GRRLIB/GRRLIB_ttf.c
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@ -27,7 +27,7 @@ THE SOFTWARE.
static FT_Library ftLibrary; /**< A handle to a FreeType library instance. */ static FT_Library ftLibrary; /**< A handle to a FreeType library instance. */
// Static function prototypes // Static function prototypes
static void DrawBitmap(FT_Bitmap *bitmap, int offset, int top, const u32 color); static void DrawBitmap(FT_Bitmap *bitmap, int offset, int top, const u8 cR, const u8 cG, const u8 cB);
/** /**
@ -124,6 +124,7 @@ void GRRLIB_PrintfTTFW(int x, int y, GRRLIB_ttfFont *myFont, const wchar_t *utf3
FT_GlyphSlot slot = myFont->face->glyph; FT_GlyphSlot slot = myFont->face->glyph;
FT_UInt glyphIndex = 0; FT_UInt glyphIndex = 0;
FT_UInt previousGlyph = 0; FT_UInt previousGlyph = 0;
u8 cR = R(color), cG = G(color), cB = B(color);
if (FT_Set_Pixel_Sizes(myFont->face, 0, fontSize)) { if (FT_Set_Pixel_Sizes(myFont->face, 0, fontSize)) {
FT_Set_Pixel_Sizes(myFont->face, 0, 12); FT_Set_Pixel_Sizes(myFont->face, 0, 12);
@ -148,7 +149,7 @@ void GRRLIB_PrintfTTFW(int x, int y, GRRLIB_ttfFont *myFont, const wchar_t *utf3
DrawBitmap(&slot->bitmap, DrawBitmap(&slot->bitmap,
penX + slot->bitmap_left + x, penX + slot->bitmap_left + x,
penY - slot->bitmap_top + y, penY - slot->bitmap_top + y,
color); cR, cG, cB);
penX += slot->advance.x >> 6; penX += slot->advance.x >> 6;
previousGlyph = glyphIndex; previousGlyph = glyphIndex;
} }
@ -161,11 +162,10 @@ void GRRLIB_PrintfTTFW(int x, int y, GRRLIB_ttfFont *myFont, const wchar_t *utf3
* @param top y-coordinate. * @param top y-coordinate.
* @param color character color in RGBA format. * @param color character color in RGBA format.
*/ */
static void DrawBitmap(FT_Bitmap *bitmap, int offset, int top, const u32 color) { static void DrawBitmap(FT_Bitmap *bitmap, int offset, int top, const u8 cR, const u8 cG, const u8 cB) {
FT_Int i, j, p, q; FT_Int i, j, p, q;
FT_Int x_max = offset + bitmap->width; FT_Int x_max = offset + bitmap->width;
FT_Int y_max = top + bitmap->rows; FT_Int y_max = top + bitmap->rows;
u8 cR = R(color), cG = G(color), cB = B(color);
for ( i = offset, p = 0; i < x_max; i++, p++ ) { for ( i = offset, p = 0; i < x_max; i++, p++ ) {
for ( j = top, q = 0; j < y_max; j++, q++ ) { for ( j = top, q = 0; j < y_max; j++, q++ ) {