[PATCH 0/5] win32u: Improve dibdrv FontSmoothingGamma related code.
After commit 649dd12, I propose some improvements related to the dibdrv FontSmoothingGamma code. Removing duplicate calculation codes and branches in the inline function can provide some performance improvements. CrystalMark2004R7 GDI Text Bench result [1][2]: - OLD : 6590 (100%) pre 649dd12 - CURRENT : 5567 ( 84%) with gamma == 1000 - CURRENT : 4927 ( 73%) with gamma != 1000 - PATCH 1/5: 5113 ( 77%) - PATCH 2/5: 5494 ( 83%) - PATCH 5/5: 6007 ( 91%) Please, Note that OLD and CURRENT(gamma == 1000) doesn't have FontSmoothingGamma ability. These improvements allow to change the gamma default value to 1400(MS GDI32 default value), while reducing performance losses. [1] If the dibdrv glyph caching code is turned off, the CrystalMark result value is reduced by 10 times! This indicates that dibdrv::draw_glyph() performance is the dominant factor of the CrystalMark result value with the glyph caching turn on. The result does not represent GDI32 text engine performance in all situations, but it can be referred to in the current situation. [2] CrystalMark apply different weights to the result value with the fortsmooth mode. Currently, Wine does not synchronize the xrdb values and the SystemParametersInfo() results. Therefore, some attention is required in the configuration of the test environment and the result analysis. I tested it under the conditions below: $ xrdb -remove $ winetricks fontsmooth=rgb Byeong-Sik Jeon (5): win32u: Remove gamma == 1000 special case code. win32u: Use pre-calculated decoded_text value. win32u: Remove the gamma value calibration code. win32u: Set the default gamma value to 1400. win32u: Remove the branches in blend_color_gamma(). dlls/win32u/dibdrv/primitives.c | 74 +++++++++++++++++---------------- dlls/win32u/font.c | 13 ++---- 2 files changed, 41 insertions(+), 46 deletions(-) -- 2.36.0
Signed-off-by: Byeongsik Jeon <bsjeon(a)hanmail.net> --- dlls/win32u/dibdrv/primitives.c | 12 +++--------- dlls/win32u/font.c | 10 ++++------ 2 files changed, 7 insertions(+), 15 deletions(-) diff --git a/dlls/win32u/dibdrv/primitives.c b/dlls/win32u/dibdrv/primitives.c index 3633c687e78..c9432fca4b8 100644 --- a/dlls/win32u/dibdrv/primitives.c +++ b/dlls/win32u/dibdrv/primitives.c @@ -6354,15 +6354,9 @@ static inline BYTE blend_color_gamma( BYTE dst, BYTE text, BYTE alpha, static inline DWORD blend_subpixel( BYTE r, BYTE g, BYTE b, DWORD text, DWORD alpha, const struct font_gamma_ramp *gamma_ramp ) { - if (gamma_ramp != NULL && gamma_ramp->gamma != 1000) - { - return blend_color_gamma( r, text >> 16, (BYTE)(alpha >> 16), gamma_ramp ) << 16 | - blend_color_gamma( g, text >> 8, (BYTE)(alpha >> 8), gamma_ramp ) << 8 | - blend_color_gamma( b, text, (BYTE) alpha, gamma_ramp ); - } - return blend_color( r, text >> 16, (BYTE)(alpha >> 16) ) << 16 | - blend_color( g, text >> 8, (BYTE)(alpha >> 8) ) << 8 | - blend_color( b, text, (BYTE) alpha ); + return blend_color_gamma( r, text >> 16, alpha >> 16, gamma_ramp ) << 16 | + blend_color_gamma( g, text >> 8, alpha >> 8, gamma_ramp ) << 8 | + blend_color_gamma( b, text, alpha, gamma_ramp ); } static void draw_subpixel_glyph_8888( const dib_info *dib, const RECT *rect, const dib_info *glyph, diff --git a/dlls/win32u/font.c b/dlls/win32u/font.c index 0c14f90afa5..c7d2059da02 100644 --- a/dlls/win32u/font.c +++ b/dlls/win32u/font.c @@ -4356,13 +4356,11 @@ static UINT init_font_options(void) This looks roughly similar to Windows Native with the same registry value. MS GDI seems to be rasterizing the outline at a different rate than FreeType. */ gamma = 1000 * gamma / 1400; - if (gamma != 1000) + + for (i = 0; i < 256; i++) { - for (i = 0; i < 256; i++) - { - font_gamma_ramp.encode[i] = pow( i / 255., 1000. / gamma ) * 255. + .5; - font_gamma_ramp.decode[i] = pow( i / 255., gamma / 1000. ) * 255. + .5; - } + font_gamma_ramp.encode[i] = pow( i / 255., 1000. / gamma ) * 255. + .5; + font_gamma_ramp.decode[i] = pow( i / 255., gamma / 1000. ) * 255. + .5; } if (!dpi && (key = reg_open_key( NULL, fonts_config_keyW, sizeof(fonts_config_keyW) ))) -- 2.36.0
Signed-off-by: Byeongsik Jeon <bsjeon(a)hanmail.net> --- Because text_pixel does not change, we can use pre-calculated decoded_text value. dlls/win32u/dibdrv/primitives.c | 53 ++++++++++++++++++++++----------- 1 file changed, 36 insertions(+), 17 deletions(-) diff --git a/dlls/win32u/dibdrv/primitives.c b/dlls/win32u/dibdrv/primitives.c index c9432fca4b8..4687ead5585 100644 --- a/dlls/win32u/dibdrv/primitives.c +++ b/dlls/win32u/dibdrv/primitives.c @@ -6339,24 +6339,22 @@ static void draw_glyph_null( const dib_info *dib, const RECT *rect, const dib_in { return; } -static inline BYTE blend_color_gamma( BYTE dst, BYTE text, BYTE alpha, +static inline BYTE blend_color_gamma( BYTE dst, BYTE text, BYTE decoded_text, BYTE alpha, const struct font_gamma_ramp *gamma_ramp ) { if (alpha == 0) return dst; if (alpha == 255) return text; if (dst == text) return dst; - return gamma_ramp->encode[ blend_color( gamma_ramp->decode[dst], - gamma_ramp->decode[text], - alpha ) ]; + return gamma_ramp->encode[ blend_color( gamma_ramp->decode[dst], decoded_text, alpha ) ]; } -static inline DWORD blend_subpixel( BYTE r, BYTE g, BYTE b, DWORD text, DWORD alpha, +static inline DWORD blend_subpixel( BYTE r, BYTE g, BYTE b, DWORD text, DWORD decoded_text, DWORD alpha, const struct font_gamma_ramp *gamma_ramp ) { - return blend_color_gamma( r, text >> 16, alpha >> 16, gamma_ramp ) << 16 | - blend_color_gamma( g, text >> 8, alpha >> 8, gamma_ramp ) << 8 | - blend_color_gamma( b, text, alpha, gamma_ramp ); + return blend_color_gamma( r, text >> 16, decoded_text >> 16, alpha >> 16, gamma_ramp ) << 16 | + blend_color_gamma( g, text >> 8, decoded_text >> 8, alpha >> 8, gamma_ramp ) << 8 | + blend_color_gamma( b, text, decoded_text, alpha, gamma_ramp ); } static void draw_subpixel_glyph_8888( const dib_info *dib, const RECT *rect, const dib_info *glyph, @@ -6366,6 +6364,11 @@ static void draw_subpixel_glyph_8888( const dib_info *dib, const RECT *rect, con DWORD *dst_ptr = get_pixel_ptr_32( dib, rect->left, rect->top ); const DWORD *glyph_ptr = get_pixel_ptr_32( glyph, origin->x, origin->y ); int x, y; + DWORD decoded_text; + + decoded_text = gamma_ramp->decode[ (BYTE)(text_pixel >> 16) ] << 16 | + gamma_ramp->decode[ (BYTE)(text_pixel >> 8 ) ] << 8 | + gamma_ramp->decode[ (BYTE)(text_pixel ) ]; for (y = rect->top; y < rect->bottom; y++) { @@ -6373,7 +6376,7 @@ static void draw_subpixel_glyph_8888( const dib_info *dib, const RECT *rect, con { if (glyph_ptr[x] == 0) continue; dst_ptr[x] = blend_subpixel( dst_ptr[x] >> 16, dst_ptr[x] >> 8, dst_ptr[x], - text_pixel, glyph_ptr[x], gamma_ramp ); + text_pixel, decoded_text, glyph_ptr[x], gamma_ramp ); } dst_ptr += dib->stride / 4; glyph_ptr += glyph->stride / 4; @@ -6387,12 +6390,16 @@ static void draw_subpixel_glyph_32( const dib_info *dib, const RECT *rect, const DWORD *dst_ptr = get_pixel_ptr_32( dib, rect->left, rect->top ); const DWORD *glyph_ptr = get_pixel_ptr_32( glyph, origin->x, origin->y ); int x, y; - DWORD text, val; + DWORD text, decoded_text, val; text = get_field( text_pixel, dib->red_shift, dib->red_len ) << 16 | get_field( text_pixel, dib->green_shift, dib->green_len ) << 8 | get_field( text_pixel, dib->blue_shift, dib->blue_len ); + decoded_text = gamma_ramp->decode[ (BYTE)(text >> 16) ] << 16 | + gamma_ramp->decode[ (BYTE)(text >> 8 ) ] << 8 | + gamma_ramp->decode[ (BYTE)(text ) ]; + for (y = rect->top; y < rect->bottom; y++) { for (x = 0; x < rect->right - rect->left; x++) @@ -6401,7 +6408,7 @@ static void draw_subpixel_glyph_32( const dib_info *dib, const RECT *rect, const val = blend_subpixel( get_field(dst_ptr[x], dib->red_shift, dib->red_len), get_field(dst_ptr[x], dib->green_shift, dib->green_len), get_field(dst_ptr[x], dib->blue_shift, dib->blue_len), - text, glyph_ptr[x], gamma_ramp ); + text, decoded_text, glyph_ptr[x], gamma_ramp ); dst_ptr[x] = rgb_to_pixel_masks( dib, val >> 16, val >> 8, val ); } dst_ptr += dib->stride / 4; @@ -6416,7 +6423,11 @@ static void draw_subpixel_glyph_24( const dib_info *dib, const RECT *rect, const BYTE *dst_ptr = get_pixel_ptr_24( dib, rect->left, rect->top ); const DWORD *glyph_ptr = get_pixel_ptr_32( glyph, origin->x, origin->y ); int x, y; - DWORD val; + DWORD decoded_text, val; + + decoded_text = gamma_ramp->decode[ (BYTE)(text_pixel >> 16) ] << 16 | + gamma_ramp->decode[ (BYTE)(text_pixel >> 8 ) ] << 8 | + gamma_ramp->decode[ (BYTE)(text_pixel ) ]; for (y = rect->top; y < rect->bottom; y++) { @@ -6424,7 +6435,7 @@ static void draw_subpixel_glyph_24( const dib_info *dib, const RECT *rect, const { if (glyph_ptr[x] == 0) continue; val = blend_subpixel( dst_ptr[x * 3 + 2], dst_ptr[x * 3 + 1], dst_ptr[x * 3], - text_pixel, glyph_ptr[x], gamma_ramp ); + text_pixel, decoded_text, glyph_ptr[x], gamma_ramp ); dst_ptr[x * 3] = val; dst_ptr[x * 3 + 1] = val >> 8; dst_ptr[x * 3 + 2] = val >> 16; @@ -6441,12 +6452,16 @@ static void draw_subpixel_glyph_555( const dib_info *dib, const RECT *rect, cons WORD *dst_ptr = get_pixel_ptr_16( dib, rect->left, rect->top ); const DWORD *glyph_ptr = get_pixel_ptr_32( glyph, origin->x, origin->y ); int x, y; - DWORD text, val; + DWORD text, decoded_text, val; text = ((text_pixel << 9) & 0xf80000) | ((text_pixel << 4) & 0x070000) | ((text_pixel << 6) & 0x00f800) | ((text_pixel << 1) & 0x000700) | ((text_pixel << 3) & 0x0000f8) | ((text_pixel >> 2) & 0x000007); + decoded_text = gamma_ramp->decode[ (BYTE)(text >> 16) ] << 16 | + gamma_ramp->decode[ (BYTE)(text >> 8 ) ] << 8 | + gamma_ramp->decode[ (BYTE)(text ) ]; + for (y = rect->top; y < rect->bottom; y++) { for (x = 0; x < rect->right - rect->left; x++) @@ -6455,7 +6470,7 @@ static void draw_subpixel_glyph_555( const dib_info *dib, const RECT *rect, cons val = blend_subpixel( ((dst_ptr[x] >> 7) & 0xf8) | ((dst_ptr[x] >> 12) & 0x07), ((dst_ptr[x] >> 2) & 0xf8) | ((dst_ptr[x] >> 7) & 0x07), ((dst_ptr[x] << 3) & 0xf8) | ((dst_ptr[x] >> 2) & 0x07), - text, glyph_ptr[x], NULL ); + text, decoded_text, glyph_ptr[x], NULL ); dst_ptr[x] = ((val >> 9) & 0x7c00) | ((val >> 6) & 0x03e0) | ((val >> 3) & 0x001f); } dst_ptr += dib->stride / 2; @@ -6470,12 +6485,16 @@ static void draw_subpixel_glyph_16( const dib_info *dib, const RECT *rect, const WORD *dst_ptr = get_pixel_ptr_16( dib, rect->left, rect->top ); const DWORD *glyph_ptr = get_pixel_ptr_32( glyph, origin->x, origin->y ); int x, y; - DWORD text, val; + DWORD text, decoded_text, val; text = get_field( text_pixel, dib->red_shift, dib->red_len ) << 16 | get_field( text_pixel, dib->green_shift, dib->green_len ) << 8 | get_field( text_pixel, dib->blue_shift, dib->blue_len ); + decoded_text = gamma_ramp->decode[ (BYTE)(text >> 16) ] << 16 | + gamma_ramp->decode[ (BYTE)(text >> 8 ) ] << 8 | + gamma_ramp->decode[ (BYTE)(text ) ]; + for (y = rect->top; y < rect->bottom; y++) { for (x = 0; x < rect->right - rect->left; x++) @@ -6484,7 +6503,7 @@ static void draw_subpixel_glyph_16( const dib_info *dib, const RECT *rect, const val = blend_subpixel( get_field(dst_ptr[x], dib->red_shift, dib->red_len), get_field(dst_ptr[x], dib->green_shift, dib->green_len), get_field(dst_ptr[x], dib->blue_shift, dib->blue_len), - text, glyph_ptr[x], NULL ); + text, decoded_text, glyph_ptr[x], NULL ); dst_ptr[x] = rgb_to_pixel_masks( dib, val >> 16, val >> 8, val ); } dst_ptr += dib->stride / 2; -- 2.36.0
Signed-off-by: Byeongsik Jeon <bsjeon(a)hanmail.net> --- This problem is caused by FreeType hinting engine. It's unnecessary code. dlls/win32u/font.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/dlls/win32u/font.c b/dlls/win32u/font.c index c7d2059da02..12260881a1d 100644 --- a/dlls/win32u/font.c +++ b/dlls/win32u/font.c @@ -4312,7 +4312,7 @@ static UINT init_font_options(void) char value_buffer[FIELD_OFFSET(KEY_VALUE_PARTIAL_INFORMATION, Data[20 * sizeof(WCHAR)])]; KEY_VALUE_PARTIAL_INFORMATION *info = (void *)value_buffer; HKEY key; - DWORD i, val, gamma = 1400; + DWORD i, val, gamma = 1000; UINT dpi = 0; if (query_reg_ascii_value( wine_fonts_key, "AntialiasFakeBoldOrItalic", @@ -4352,11 +4352,6 @@ static UINT init_font_options(void) NtClose( key ); } - /* Calibrating the difference between the registry value and the Wine gamma value. - This looks roughly similar to Windows Native with the same registry value. - MS GDI seems to be rasterizing the outline at a different rate than FreeType. */ - gamma = 1000 * gamma / 1400; - for (i = 0; i < 256; i++) { font_gamma_ramp.encode[i] = pow( i / 255., 1000. / gamma ) * 255. + .5; -- 2.36.0
Signed-off-by: Byeongsik Jeon <bsjeon(a)hanmail.net> --- dlls/win32u/font.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/dlls/win32u/font.c b/dlls/win32u/font.c index 12260881a1d..8a6cda2f500 100644 --- a/dlls/win32u/font.c +++ b/dlls/win32u/font.c @@ -4312,7 +4312,7 @@ static UINT init_font_options(void) char value_buffer[FIELD_OFFSET(KEY_VALUE_PARTIAL_INFORMATION, Data[20 * sizeof(WCHAR)])]; KEY_VALUE_PARTIAL_INFORMATION *info = (void *)value_buffer; HKEY key; - DWORD i, val, gamma = 1000; + DWORD i, val, gamma = 1400; UINT dpi = 0; if (query_reg_ascii_value( wine_fonts_key, "AntialiasFakeBoldOrItalic", -- 2.36.0
Signed-off-by: Byeongsik Jeon <bsjeon(a)hanmail.net> --- Numerically, there is a difference in code behavior because it only processes the full pixel alpha value 0xFFFFF(~0u). For example, if the red subpixel alpha value is 0xFF, the dst red subpixel is calculated by: gamma->encode[ blend_color( gamma->decode[dst.r], gamma->decode[text.r], alpha.r) ] alpha.r == 0xFF, so, gamma->encode[ gamma->decode(text.r) ] The original code will get text.r, but the changed code will cause little errors. However, since the affected pixels have already been changed by the LCD Filter, I wonder if they require strict pixel accuracy. dlls/win32u/dibdrv/primitives.c | 65 ++++++++++++++------------------- 1 file changed, 27 insertions(+), 38 deletions(-) diff --git a/dlls/win32u/dibdrv/primitives.c b/dlls/win32u/dibdrv/primitives.c index 4687ead5585..30f326934f0 100644 --- a/dlls/win32u/dibdrv/primitives.c +++ b/dlls/win32u/dibdrv/primitives.c @@ -6339,22 +6339,18 @@ static void draw_glyph_null( const dib_info *dib, const RECT *rect, const dib_in { return; } -static inline BYTE blend_color_gamma( BYTE dst, BYTE text, BYTE decoded_text, BYTE alpha, +static inline BYTE blend_color_gamma( BYTE dst, BYTE decoded_text, BYTE alpha, const struct font_gamma_ramp *gamma_ramp ) { - if (alpha == 0) return dst; - if (alpha == 255) return text; - if (dst == text) return dst; - return gamma_ramp->encode[ blend_color( gamma_ramp->decode[dst], decoded_text, alpha ) ]; } -static inline DWORD blend_subpixel( BYTE r, BYTE g, BYTE b, DWORD text, DWORD decoded_text, DWORD alpha, +static inline DWORD blend_subpixel( BYTE r, BYTE g, BYTE b, DWORD decoded_text, DWORD alpha, const struct font_gamma_ramp *gamma_ramp ) { - return blend_color_gamma( r, text >> 16, decoded_text >> 16, alpha >> 16, gamma_ramp ) << 16 | - blend_color_gamma( g, text >> 8, decoded_text >> 8, alpha >> 8, gamma_ramp ) << 8 | - blend_color_gamma( b, text, decoded_text, alpha, gamma_ramp ); + return blend_color_gamma( r, decoded_text >> 16, alpha >> 16, gamma_ramp ) << 16 | + blend_color_gamma( g, decoded_text >> 8, alpha >> 8, gamma_ramp ) << 8 | + blend_color_gamma( b, decoded_text, alpha, gamma_ramp ); } static void draw_subpixel_glyph_8888( const dib_info *dib, const RECT *rect, const dib_info *glyph, @@ -6375,8 +6371,9 @@ static void draw_subpixel_glyph_8888( const dib_info *dib, const RECT *rect, con for (x = 0; x < rect->right - rect->left; x++) { if (glyph_ptr[x] == 0) continue; + if (glyph_ptr[x] == ~0u) { dst_ptr[x] = text_pixel; continue; } dst_ptr[x] = blend_subpixel( dst_ptr[x] >> 16, dst_ptr[x] >> 8, dst_ptr[x], - text_pixel, decoded_text, glyph_ptr[x], gamma_ramp ); + decoded_text, glyph_ptr[x], gamma_ramp ); } dst_ptr += dib->stride / 4; glyph_ptr += glyph->stride / 4; @@ -6390,25 +6387,22 @@ static void draw_subpixel_glyph_32( const dib_info *dib, const RECT *rect, const DWORD *dst_ptr = get_pixel_ptr_32( dib, rect->left, rect->top ); const DWORD *glyph_ptr = get_pixel_ptr_32( glyph, origin->x, origin->y ); int x, y; - DWORD text, decoded_text, val; - - text = get_field( text_pixel, dib->red_shift, dib->red_len ) << 16 | - get_field( text_pixel, dib->green_shift, dib->green_len ) << 8 | - get_field( text_pixel, dib->blue_shift, dib->blue_len ); + DWORD decoded_text, val; - decoded_text = gamma_ramp->decode[ (BYTE)(text >> 16) ] << 16 | - gamma_ramp->decode[ (BYTE)(text >> 8 ) ] << 8 | - gamma_ramp->decode[ (BYTE)(text ) ]; + decoded_text = gamma_ramp->decode[ get_field( text_pixel, dib->red_shift, dib->red_len ) ] << 16 | + gamma_ramp->decode[ get_field( text_pixel, dib->green_shift, dib->green_len ) ] << 8 | + gamma_ramp->decode[ get_field( text_pixel, dib->blue_shift, dib->blue_len ) ]; for (y = rect->top; y < rect->bottom; y++) { for (x = 0; x < rect->right - rect->left; x++) { if (glyph_ptr[x] == 0) continue; + if (glyph_ptr[x] == ~0u) { dst_ptr[x] = text_pixel; continue; } val = blend_subpixel( get_field(dst_ptr[x], dib->red_shift, dib->red_len), get_field(dst_ptr[x], dib->green_shift, dib->green_len), get_field(dst_ptr[x], dib->blue_shift, dib->blue_len), - text, decoded_text, glyph_ptr[x], gamma_ramp ); + decoded_text, glyph_ptr[x], gamma_ramp ); dst_ptr[x] = rgb_to_pixel_masks( dib, val >> 16, val >> 8, val ); } dst_ptr += dib->stride / 4; @@ -6434,8 +6428,9 @@ static void draw_subpixel_glyph_24( const dib_info *dib, const RECT *rect, const for (x = 0; x < rect->right - rect->left; x++) { if (glyph_ptr[x] == 0) continue; + if (glyph_ptr[x] == ~0u) { dst_ptr[x] = text_pixel; continue; } val = blend_subpixel( dst_ptr[x * 3 + 2], dst_ptr[x * 3 + 1], dst_ptr[x * 3], - text_pixel, decoded_text, glyph_ptr[x], gamma_ramp ); + decoded_text, glyph_ptr[x], gamma_ramp ); dst_ptr[x * 3] = val; dst_ptr[x * 3 + 1] = val >> 8; dst_ptr[x * 3 + 2] = val >> 16; @@ -6452,25 +6447,22 @@ static void draw_subpixel_glyph_555( const dib_info *dib, const RECT *rect, cons WORD *dst_ptr = get_pixel_ptr_16( dib, rect->left, rect->top ); const DWORD *glyph_ptr = get_pixel_ptr_32( glyph, origin->x, origin->y ); int x, y; - DWORD text, decoded_text, val; - - text = ((text_pixel << 9) & 0xf80000) | ((text_pixel << 4) & 0x070000) | - ((text_pixel << 6) & 0x00f800) | ((text_pixel << 1) & 0x000700) | - ((text_pixel << 3) & 0x0000f8) | ((text_pixel >> 2) & 0x000007); + DWORD decoded_text, val; - decoded_text = gamma_ramp->decode[ (BYTE)(text >> 16) ] << 16 | - gamma_ramp->decode[ (BYTE)(text >> 8 ) ] << 8 | - gamma_ramp->decode[ (BYTE)(text ) ]; + decoded_text = gamma_ramp->decode[ ((text_pixel >> 7) & 0xf8) | ((text_pixel >> 12) & 0x07) ] << 16 | + gamma_ramp->decode[ ((text_pixel >> 2) & 0xf8) | ((text_pixel >> 7) & 0x07) ] << 8 | + gamma_ramp->decode[ ((text_pixel << 3) & 0xf8) | ((text_pixel >> 2) & 0x07) ]; for (y = rect->top; y < rect->bottom; y++) { for (x = 0; x < rect->right - rect->left; x++) { if (glyph_ptr[x] == 0) continue; + if (glyph_ptr[x] == ~0u) { dst_ptr[x] = text_pixel; continue; } val = blend_subpixel( ((dst_ptr[x] >> 7) & 0xf8) | ((dst_ptr[x] >> 12) & 0x07), ((dst_ptr[x] >> 2) & 0xf8) | ((dst_ptr[x] >> 7) & 0x07), ((dst_ptr[x] << 3) & 0xf8) | ((dst_ptr[x] >> 2) & 0x07), - text, decoded_text, glyph_ptr[x], NULL ); + decoded_text, glyph_ptr[x], NULL ); dst_ptr[x] = ((val >> 9) & 0x7c00) | ((val >> 6) & 0x03e0) | ((val >> 3) & 0x001f); } dst_ptr += dib->stride / 2; @@ -6485,25 +6477,22 @@ static void draw_subpixel_glyph_16( const dib_info *dib, const RECT *rect, const WORD *dst_ptr = get_pixel_ptr_16( dib, rect->left, rect->top ); const DWORD *glyph_ptr = get_pixel_ptr_32( glyph, origin->x, origin->y ); int x, y; - DWORD text, decoded_text, val; - - text = get_field( text_pixel, dib->red_shift, dib->red_len ) << 16 | - get_field( text_pixel, dib->green_shift, dib->green_len ) << 8 | - get_field( text_pixel, dib->blue_shift, dib->blue_len ); + DWORD decoded_text, val; - decoded_text = gamma_ramp->decode[ (BYTE)(text >> 16) ] << 16 | - gamma_ramp->decode[ (BYTE)(text >> 8 ) ] << 8 | - gamma_ramp->decode[ (BYTE)(text ) ]; + decoded_text = gamma_ramp->decode[ get_field( text_pixel, dib->red_shift, dib->red_len ) ] << 16 | + gamma_ramp->decode[ get_field( text_pixel, dib->green_shift, dib->green_len ) ] << 8 | + gamma_ramp->decode[ get_field( text_pixel, dib->blue_shift, dib->blue_len ) ]; for (y = rect->top; y < rect->bottom; y++) { for (x = 0; x < rect->right - rect->left; x++) { if (glyph_ptr[x] == 0) continue; + if (glyph_ptr[x] == ~0u) { dst_ptr[x] = text_pixel; continue; } val = blend_subpixel( get_field(dst_ptr[x], dib->red_shift, dib->red_len), get_field(dst_ptr[x], dib->green_shift, dib->green_len), get_field(dst_ptr[x], dib->blue_shift, dib->blue_len), - text, decoded_text, glyph_ptr[x], NULL ); + decoded_text, glyph_ptr[x], NULL ); dst_ptr[x] = rgb_to_pixel_masks( dib, val >> 16, val >> 8, val ); } dst_ptr += dib->stride / 2; -- 2.36.0
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Byeongsik Jeon