ReceiveTempSMS
/
Sweden-Number
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

winex11: Interpolate gamma ramp when gamma ramp size is greater than 256. 

Signed-off-by: Józef Kucia <jkucia@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Józef Kucia 2018-05-28 10:26:43 +02:00 committed by Alexandre Julliard
parent 913160d2a4
commit 11cd0d34a2
1 changed files with 93 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

98
dlls/winex11.drv/xvidmode.c
View File

@ -37,6 +37,7 @@
#include "windef.h"
#include "wingdi.h"
#include "wine/debug.h"
#include "wine/heap.h"
#include "wine/library.h"
WINE_DEFAULT_DEBUG_CHANNEL(xvidmode);
@ -202,7 +203,8 @@ void X11DRV_XF86VM_Init(void)
pXF86VidModeGetGammaRampSize(gdi_display, DefaultScreen(gdi_display),
&xf86vm_gammaramp_size);
if (X11DRV_check_error()) xf86vm_gammaramp_size = 0;
if (xf86vm_gammaramp_size == GAMMA_RAMP_SIZE)
TRACE("Gamma ramp size %d.\n", xf86vm_gammaramp_size);
if (xf86vm_gammaramp_size >= GAMMA_RAMP_SIZE)
xf86vm_use_gammaramp = TRUE;
}
#endif /* X_XF86VidModeSetGammaRamp */
@ -334,6 +336,94 @@ static BOOL ComputeGammaFromRamp(WORD ramp[GAMMA_RAMP_SIZE], float *gamma)
/* Hmm... should gamma control be available in desktop mode or not?
* I'll assume that it should */
#ifdef X_XF86VidModeSetGammaRamp
static void interpolate_gamma_ramp(WORD *dst_r, WORD *dst_g, WORD *dst_b, unsigned int dst_size,
const WORD *src_r, const WORD *src_g, const WORD *src_b, unsigned int src_size)
{
double position, distance;
unsigned int dst_i, src_i;
for (dst_i = 0; dst_i < dst_size; ++dst_i)
{
position = dst_i * (src_size - 1) / (double)(dst_size - 1);
src_i = position;
if (src_i + 1 < src_size)
{
distance = position - src_i;
dst_r[dst_i] = (1.0 - distance) * src_r[src_i] + distance * src_r[src_i + 1] + 0.5;
dst_g[dst_i] = (1.0 - distance) * src_g[src_i] + distance * src_g[src_i + 1] + 0.5;
dst_b[dst_i] = (1.0 - distance) * src_b[src_i] + distance * src_b[src_i + 1] + 0.5;
}
else
{
dst_r[dst_i] = src_r[src_i];
dst_g[dst_i] = src_g[src_i];
dst_b[dst_i] = src_b[src_i];
}
}
}
static BOOL xf86vm_get_gamma_ramp(struct x11drv_gamma_ramp *ramp)
{
WORD *red, *green, *blue;
BOOL ret = FALSE;
if (xf86vm_gammaramp_size == GAMMA_RAMP_SIZE)
{
red = ramp->red;
green = ramp->green;
blue = ramp->blue;
}
else
{
if (!(red = heap_calloc(3 * xf86vm_gammaramp_size, sizeof(*red))))
return FALSE;
green = red + xf86vm_gammaramp_size;
blue = green + xf86vm_gammaramp_size;
}
ret = pXF86VidModeGetGammaRamp(gdi_display, DefaultScreen(gdi_display),
xf86vm_gammaramp_size, red, green, blue);
if (ret && red != ramp->red)
interpolate_gamma_ramp(ramp->red, ramp->green, ramp->blue, GAMMA_RAMP_SIZE,
red, green, blue, xf86vm_gammaramp_size);
if (red != ramp->red)
heap_free(red);
return ret;
}
static BOOL xf86vm_set_gamma_ramp(struct x11drv_gamma_ramp *ramp)
{
WORD *red, *green, *blue;
BOOL ret = FALSE;
if (xf86vm_gammaramp_size == GAMMA_RAMP_SIZE)
{
red = ramp->red;
green = ramp->green;
blue = ramp->blue;
}
else
{
if (!(red = heap_calloc(3 * xf86vm_gammaramp_size, sizeof(*red))))
return FALSE;
green = red + xf86vm_gammaramp_size;
blue = green + xf86vm_gammaramp_size;
interpolate_gamma_ramp(red, green, blue, xf86vm_gammaramp_size,
ramp->red, ramp->green, ramp->blue, GAMMA_RAMP_SIZE);
}
ret = pXF86VidModeSetGammaRamp(gdi_display, DefaultScreen(gdi_display),
xf86vm_gammaramp_size, red, green, blue);
if (red != ramp->red)
heap_free(red);
return ret;
}
#endif
static BOOL X11DRV_XF86VM_GetGammaRamp(struct x11drv_gamma_ramp *ramp)
{
#ifdef X_XF86VidModeSetGamma
@ -342,8 +432,7 @@ static BOOL X11DRV_XF86VM_GetGammaRamp(struct x11drv_gamma_ramp *ramp)
if (xf86vm_major < 2) return FALSE; /* no gamma control */
#ifdef X_XF86VidModeSetGammaRamp
if (xf86vm_use_gammaramp)
return pXF86VidModeGetGammaRamp(gdi_display, DefaultScreen(gdi_display), GAMMA_RAMP_SIZE,
ramp->red, ramp->green, ramp->blue);
return xf86vm_get_gamma_ramp(ramp);
#endif
if (pXF86VidModeGetGamma(gdi_display, DefaultScreen(gdi_display), &gamma))
{
@ -367,8 +456,7 @@ static BOOL X11DRV_XF86VM_SetGammaRamp(struct x11drv_gamma_ramp *ramp)
!ComputeGammaFromRamp(ramp->blue, &gamma.blue)) return FALSE;
#ifdef X_XF86VidModeSetGammaRamp
if (xf86vm_use_gammaramp)
return pXF86VidModeSetGammaRamp(gdi_display, DefaultScreen(gdi_display), GAMMA_RAMP_SIZE,
ramp->red, ramp->green, ramp->blue);
return xf86vm_set_gamma_ramp(ramp);
#endif
return pXF86VidModeSetGamma(gdi_display, DefaultScreen(gdi_display), &gamma);
#else