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added color palette programming, in use for CMAP8 (so 8-bit) mode. Modified 15-bit mode to be correct (like 16 and 32bit already were): these three modes are direct modes (no 'detour' over the palette). Setting colorspace is now fully functional for all 4 depths.

Browse Source 
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13749 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Rudolf Cornelissen 2005-07-18 15:14:59 +00:00
parent ddd52f1f86
commit 6416d8525e
4 changed files with 48 additions and 25 deletions
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14
src/add-ons/accelerants/via/SetDisplayMode.c
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@ -154,22 +154,22 @@ status_t SET_DISPLAY_MODE(display_mode *mode_to_set)
{
case B_CMAP8:
colour_depth1 = 8;
// head1_mode(BPP8, 1.0);
head1_mode(BPP8, 1.0);
head1_depth(BPP8);
break;
case B_RGB15_LITTLE:
colour_depth1 = 16;
// head1_mode(BPP15, 1.0);
head1_mode(BPP15, 1.0);
head1_depth(BPP15);
break;
case B_RGB16_LITTLE:
colour_depth1 = 16;
// head1_mode(BPP16, 1.0);
head1_mode(BPP16, 1.0);
head1_depth(BPP16);
break;
case B_RGB32_LITTLE:
colour_depth1 = 32;
// head1_mode(BPP32, 1.0);
head1_mode(BPP32, 1.0);
head1_depth(BPP32);
break;
}
@ -288,7 +288,7 @@ status = B_OK;
/* first set the colordepth */
head1_depth(colour_mode);
/* then(!) program the PAL (<8bit colordepth does not support 8bit PAL) */
// head1_mode(colour_mode,1.0);
head1_mode(colour_mode,1.0);
/* set the display pitch */
head1_set_display_pitch();
@ -432,8 +432,8 @@ void SET_INDEXED_COLORS(uint count, uint8 first, uint8 *color_data, uint32 flags
b[i]=*color_data++;
i++;
}
// head1_palette(r,g,b);
if (si->dm.flags & DUALHEAD_BITS) head2_palette(r,g,b);
head1_palette(r,g,b);
// if (si->dm.flags & DUALHEAD_BITS) head2_palette(r,g,b);
}
/* Put the display into one of the Display Power Management modes. */

30
src/add-ons/accelerants/via/engine/crtc.c
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@ -423,27 +423,41 @@ status_t eng_crtc_depth(int mode)
uint8 genctrl = 0;
/* set VCLK scaling */
/* genctrl bit use:
b7: ?
b6: ?
b5: ?
b4: %0 = 15-bit color in 2 bytes/pixel mode;
%1 = 16-bit color in 2 bytes/pixel mode.
b3-2:%00 = 1 byte /pixel;
%01 = 2 bytes/pixel;
%10 = 3 bytes/pixel; (assumed)
%11 = 4 bytes/pixel.
b1: %0 = 4 bits/pixel;
%1 = b3-2 scheme above.
b0: ?
*/
switch(mode)
{
case BPP8:
/* bits unknown (yet): 'direct mode' */
/* indexed mode */
genctrl = 0x22; //%0010 0010
break;
case BPP15:
/* bits unknown (yet): 'indirect mode' (via colorpalette?) */
genctrl = 0xb6; //%1011 0110
/* direct mode */
genctrl = 0xa6; //%1010 0110
break;
case BPP16:
/* bits unknown (yet): 'indirect mode' (via colorpalette?) */
/* direct mode */
genctrl = 0xb6; //%1011 0110
break;
case BPP24:
/* bits unknown (yet): 'indirect mode' (via colorpalette?) */
//fixme: unknown what to set yet..
genctrl = 0x00;
/* direct mode */
//fixme: complete guess..
genctrl = 0x0a; //%0000 1010
break;
case BPP32:
/* bits unknown (yet): 'indirect mode' (via colorpalette?) */
/* direct mode */
genctrl = 0xae; //%1010 1110
break;
}

27
src/add-ons/accelerants/via/engine/dac.c
View File

@ -1,6 +1,6 @@
/* program the DAC */
/* Author:
Rudolf Cornelissen 12/2003-10/2004
Rudolf Cornelissen 12/2003-7/2005
*/
#define MODULE_BIT 0x00010000
@ -66,6 +66,9 @@ status_t eng_dac_mode(int mode,float brightness)
uint8 *r,*g,*b;
int i, ri;
/* 8-bit mode uses the palette differently */
if (mode == BPP8) return B_ERROR;
/*set colour arrays to point to space reserved in shared info*/
r = si->color_data;
g = r + 256;
@ -94,9 +97,14 @@ status_t eng_dac_mode(int mode,float brightness)
status_t eng_dac_palette(uint8 r[256],uint8 g[256],uint8 b[256])
{
int i;
LOG(4,("DAC: setting palette\n"));
/* enable primary head palette access */
SEQW(MMIO_EN, ((SEQR(MMIO_EN)) & 0xfe));
/* ??? */
SEQW(0x1b, ((SEQR(0x1b)) | 0x20));
/* disable gamma correction HW mode */
SEQW(FIFOWM, ((SEQR(FIFOWM)) & 0x7f));
/* select first PAL adress before starting programming */
ENG_REG8(RG8_PALINDW) = 0x00;
@ -104,9 +112,9 @@ status_t eng_dac_palette(uint8 r[256],uint8 g[256],uint8 b[256])
for (i = 0; i < 256; i++)
{
/* the 6 implemented bits are on b0-b5 of the bus */
ENG_REG8(RG8_PALDATA) = r[i];
ENG_REG8(RG8_PALDATA) = g[i];
ENG_REG8(RG8_PALDATA) = b[i];
ENG_REG8(RG8_PALDATA) = (r[i] >> 2);
ENG_REG8(RG8_PALDATA) = (g[i] >> 2);
ENG_REG8(RG8_PALDATA) = (b[i] >> 2);
}
if (ENG_REG8(RG8_PALINDW) != 0x00)
{
@ -121,10 +129,11 @@ if (1)
ENG_REG8(RG8_PALINDR) = 0x00;
for (i = 0; i < 256; i++)
{
R = ENG_REG8(RG8_PALDATA);
G = ENG_REG8(RG8_PALDATA);
B = ENG_REG8(RG8_PALDATA);
if ((r[i] != R) || (g[i] != G) || (b[i] != B))
R = (ENG_REG8(RG8_PALDATA) << 2);
G = (ENG_REG8(RG8_PALDATA) << 2);
B = (ENG_REG8(RG8_PALDATA) << 2);
/* only compare the most significant 6 bits */
if (((r[i] & 0xfc) != R) || ((g[i] & 0xfc) != G) || ((b[i] & 0xfc) != B))
LOG(1,("DAC palette %d: w %x %x %x, r %x %x %x\n", i, r[i], g[i], b[i], R, G, B)); // apsed
}
}

2
src/add-ons/accelerants/via/engine/general.c
View File

@ -90,7 +90,7 @@ status_t eng_general_powerup()
{
status_t status;
LOG(1,("POWERUP: Haiku VIA Accelerant 0.03 running.\n"));
LOG(1,("POWERUP: Haiku VIA Accelerant 0.04 running.\n"));
/* preset no laptop */
si->ps.laptop = false;