diff options
Diffstat (limited to 'src/mesa/drivers/dos/video.c')
| -rw-r--r-- | src/mesa/drivers/dos/video.c | 34 |
1 files changed, 19 insertions, 15 deletions
diff --git a/src/mesa/drivers/dos/video.c b/src/mesa/drivers/dos/video.c index 35c643b4c9a..5432141bb0d 100644 --- a/src/mesa/drivers/dos/video.c +++ b/src/mesa/drivers/dos/video.c @@ -23,10 +23,10 @@ */ /* - * DOS/DJGPP device driver v1.3 for Mesa + * DOS/DJGPP device driver v1.4 for Mesa * * Copyright (C) 2002 - Borca Daniel - * Email : [email protected] + * Email : [email protected] * Web : http://www.geocities.com/dborca * * Thanks to CrazyPyro (Neil Funk) for FakeColor @@ -163,7 +163,11 @@ static int vl_mixfix32 (fixed r, fixed g, fixed b) #define vl_mixrgba24 vl_mixrgb24 static int vl_mixrgba32 (const unsigned char rgba[]) { - return (rgba[3]<<24)|(rgba[0]<<16)|(rgba[1]<<8)|(rgba[2]); + /* Hack alert: + * currently, DMesa uses Mesa's alpha buffer; + * so we don't really care about alpha value here... + */ + return /*(rgba[3]<<24)|*/(rgba[0]<<16)|(rgba[1]<<8)|(rgba[2]); } @@ -175,11 +179,11 @@ static int vl_mixrgba32 (const unsigned char rgba[]) * * Note: - */ -static int vl_mixrgb8fake (const unsigned char rgba[]) +static int vl_mixrgb8fake (const unsigned char rgb[]) { - return array_b[rgba[2]]*G_CNT*R_CNT - + array_g[rgba[1]]*R_CNT - + array_r[rgba[0]]; + return array_b[rgb[2]]*G_CNT*R_CNT + + array_g[rgb[1]]*R_CNT + + array_r[rgb[0]]; } #define vl_mixrgb8 vl_mixrgb8fake static int vl_mixrgb15 (const unsigned char rgb[]) @@ -205,21 +209,21 @@ static int vl_mixrgb32 (const unsigned char rgb[]) * * Note: uses current read buffer */ -static void v_getrgba8fake6 (unsigned int offset, unsigned char rgba[]) +static void v_getrgba8fake6 (unsigned int offset, unsigned char rgba[4]) { word32 c = VGAPalette[((word8 *)vl_current_read_buffer)[offset]]; rgba[0] = _rgb_scale_6[(c >> 16) & 0x3F]; rgba[1] = _rgb_scale_6[(c >> 8) & 0x3F]; rgba[2] = _rgb_scale_6[c & 0x3F]; - rgba[3] = c >> 24; + /*rgba[3] = c >> 24;*/ /* dummy alpha; we have separate SW alpha, so ignore */ } -static void v_getrgba8fake8 (unsigned int offset, unsigned char rgba[]) +static void v_getrgba8fake8 (unsigned int offset, unsigned char rgba[4]) { word32 c = VGAPalette[((word8 *)vl_current_read_buffer)[offset]]; rgba[0] = c >> 16; rgba[1] = c >> 8; rgba[2] = c; - rgba[3] = c >> 24; + /*rgba[3] = c >> 24;*/ /* dummy alpha; we have separate SW alpha, so ignore */ } #define v_getrgba8 v_getrgba8fake6 static void v_getrgba15 (unsigned int offset, unsigned char rgba[4]) @@ -235,7 +239,7 @@ static void v_getrgba15 (unsigned int offset, unsigned char rgba[4]) rgba[1] = _rgb_scale_5[(c >> 5) & 0x1F]; rgba[2] = _rgb_scale_5[c & 0x1F]; #endif - rgba[3] = 255; + /*rgba[3] = 255;*/ /* dummy alpha; we have separate SW alpha, so ignore */ } static void v_getrgba16 (unsigned int offset, unsigned char rgba[4]) { @@ -249,7 +253,7 @@ static void v_getrgba16 (unsigned int offset, unsigned char rgba[4]) rgba[1] = _rgb_scale_6[(c >> 5) & 0x3F]; rgba[2] = _rgb_scale_5[c & 0x1F]; #endif - rgba[3] = 255; + /*rgba[3] = 255;*/ /* dummy alpha; we have separate SW alpha, so ignore */ } static void v_getrgba24 (unsigned int offset, unsigned char rgba[4]) { @@ -257,7 +261,7 @@ static void v_getrgba24 (unsigned int offset, unsigned char rgba[4]) rgba[0] = c >> 16; rgba[1] = c >> 8; rgba[2] = c; - rgba[3] = 255; + /*rgba[3] = 255;*/ /* dummy alpha; we have separate SW alpha, so ignore */ } static void v_getrgba32 (unsigned int offset, unsigned char rgba[4]) { @@ -265,7 +269,7 @@ static void v_getrgba32 (unsigned int offset, unsigned char rgba[4]) rgba[0] = c >> 16; rgba[1] = c >> 8; rgba[2] = c; - rgba[3] = c >> 24; + /*rgba[3] = c >> 24;*/ /* dummy alpha; we have separate SW alpha, so ignore */ } |