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Commit f7207bcd authored by Ulrich Sibiller's avatar Ulrich Sibiller Committed by Mike Gabriel
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Lift fb to xorg-xserver-7.1/1.1 state

Fixes ArcticaProject/nx-libs#640
parent b1c42dc9
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Showing with 109 additions and 46 deletions
nx-X11/programs/Xserver/fb/fbblt.c
View file @ f7207bcd
...@@ -26,6 +26,7 @@ ...@@ -26,6 +26,7 @@
#include <dix-config.h> #include <dix-config.h>
#endif #endif
#include <string.h>
#include "fb.h" #include "fb.h"
#define InitializeShifts(sx,dx,ls,rs) { \ #define InitializeShifts(sx,dx,ls,rs) { \
...@@ -76,6 +77,29 @@ fbBlt (FbBits *srcLine, ...@@ -76,6 +77,29 @@ fbBlt (FbBits *srcLine,
return; return;
} }
#endif #endif
if (alu == GXcopy && pm == FB_ALLONES && !reverse &&
!(srcX & 7) && !(dstX & 7) && !(width & 7)) {
int i;
CARD8 *src = (CARD8 *) srcLine;
CARD8 *dst = (CARD8 *) dstLine;
srcStride *= sizeof(FbBits);
dstStride *= sizeof(FbBits);
width >>= 3;
src += (srcX >> 3);
dst += (dstX >> 3);
if (!upsidedown)
for (i = 0; i < height; i++)
memcpy(dst + i * dstStride, src + i * srcStride, width);
else
for (i = height - 1; i >= 0; i--)
memcpy(dst + i * dstStride, src + i * srcStride, width);
return;
}
FbInitializeMergeRop(alu, pm); FbInitializeMergeRop(alu, pm);
destInvarient = FbDestInvarientMergeRop(); destInvarient = FbDestInvarientMergeRop();
if (upsidedown) if (upsidedown)
......
nx-X11/programs/Xserver/fb/fbcompose.c
View file @ f7207bcd
...@@ -382,6 +382,17 @@ fbFetch_c8 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr i ...@@ -382,6 +382,17 @@ fbFetch_c8 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr i
} }
} }
static FASTCALL void
fbFetch_x4a4 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed)
{
const CARD8 *pixel = (const CARD8 *)bits + x;
const CARD8 *end = pixel + width;
while (pixel < end) {
CARD8 p = (*pixel++) & 0xf;
*buffer++ = (p | (p << 4)) << 24;
}
}
#define Fetch8(l,o) (((CARD8 *) (l))[(o) >> 2]) #define Fetch8(l,o) (((CARD8 *) (l))[(o) >> 2])
#if IMAGE_BYTE_ORDER == MSBFirst #if IMAGE_BYTE_ORDER == MSBFirst
#define Fetch4(l,o) ((o) & 2 ? Fetch8(l,o) & 0xf : Fetch8(l,o) >> 4) #define Fetch4(l,o) ((o) & 2 ? Fetch8(l,o) & 0xf : Fetch8(l,o) >> 4)
...@@ -545,6 +556,7 @@ static fetchProc fetchProcForPicture (PicturePtr pict) ...@@ -545,6 +556,7 @@ static fetchProc fetchProcForPicture (PicturePtr pict)
case PICT_a2b2g2r2: return fbFetch_a2b2g2r2; case PICT_a2b2g2r2: return fbFetch_a2b2g2r2;
case PICT_c8: return fbFetch_c8; case PICT_c8: return fbFetch_c8;
case PICT_g8: return fbFetch_c8; case PICT_g8: return fbFetch_c8;
case PICT_x4a4: return fbFetch_x4a4;
/* 4bpp formats */ /* 4bpp formats */
case PICT_a4: return fbFetch_a4; case PICT_a4: return fbFetch_a4;
...@@ -1258,6 +1270,16 @@ fbStore_c8 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr i ...@@ -1258,6 +1270,16 @@ fbStore_c8 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr i
} }
} }
static FASTCALL void
fbStore_x4a4 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
CARD8 *pixel = ((CARD8 *) bits) + x;
for (i = 0; i < width; ++i) {
*pixel++ = values[i] >> 28;
}
}
#define Store8(l,o,v) (((CARD8 *) l)[(o) >> 3] = (v)) #define Store8(l,o,v) (((CARD8 *) l)[(o) >> 3] = (v))
#if IMAGE_BYTE_ORDER == MSBFirst #if IMAGE_BYTE_ORDER == MSBFirst
#define Store4(l,o,v) Store8(l,o,((o) & 4 ? \ #define Store4(l,o,v) Store8(l,o,((o) & 4 ? \
...@@ -1409,6 +1431,7 @@ static storeProc storeProcForPicture (PicturePtr pict) ...@@ -1409,6 +1431,7 @@ static storeProc storeProcForPicture (PicturePtr pict)
case PICT_a2r2g2b2: return fbStore_a2r2g2b2; case PICT_a2r2g2b2: return fbStore_a2r2g2b2;
case PICT_c8: return fbStore_c8; case PICT_c8: return fbStore_c8;
case PICT_g8: return fbStore_c8; case PICT_g8: return fbStore_c8;
case PICT_x4a4: return fbStore_x4a4;
/* 4bpp formats */ /* 4bpp formats */
case PICT_a4: return fbStore_a4; case PICT_a4: return fbStore_a4;
...@@ -2861,7 +2884,7 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32 ...@@ -2861,7 +2884,7 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32
FbBits *bits; FbBits *bits;
FbStride stride; FbStride stride;
int bpp; int bpp;
int xoff, yoff; int xoff, yoff, dx, dy;
fetchPixelProc fetch; fetchPixelProc fetch;
PictVector v; PictVector v;
PictVector unit; PictVector unit;
...@@ -2876,8 +2899,11 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32 ...@@ -2876,8 +2899,11 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32
x += xoff; x += xoff;
y += yoff; y += yoff;
v.vector[0] = IntToxFixed(x); dx = pict->pDrawable->x;
v.vector[1] = IntToxFixed(y); dy = pict->pDrawable->y;
v.vector[0] = IntToxFixed(x - dx);
v.vector[1] = IntToxFixed(y - dy);
v.vector[2] = xFixed1; v.vector[2] = xFixed1;
/* when using convolution filters one might get here without a transform */ /* when using convolution filters one might get here without a transform */
...@@ -2898,7 +2924,6 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32 ...@@ -2898,7 +2924,6 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32
{ {
if (pict->repeatType == RepeatNormal) { if (pict->repeatType == RepeatNormal) {
if (RegionNumRects(pict->pCompositeClip) == 1) { if (RegionNumRects(pict->pCompositeClip) == 1) {
box = pict->pCompositeClip->extents;
for (i = 0; i < width; ++i) { for (i = 0; i < width; ++i) {
if (!v.vector[2]) { if (!v.vector[2]) {
buffer[i] = 0; buffer[i] = 0;
...@@ -2910,7 +2935,7 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32 ...@@ -2910,7 +2935,7 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32
y = MOD(v.vector[1]>>16, pict->pDrawable->height); y = MOD(v.vector[1]>>16, pict->pDrawable->height);
x = MOD(v.vector[0]>>16, pict->pDrawable->width); x = MOD(v.vector[0]>>16, pict->pDrawable->width);
} }
buffer[i] = fetch(bits + (y + pict->pDrawable->y)*stride, x + pict->pDrawable->x, indexed); buffer[i] = fetch(bits + (y + dy)*stride, x + dx, indexed);
} }
v.vector[0] += unit.vector[0]; v.vector[0] += unit.vector[0];
v.vector[1] += unit.vector[1]; v.vector[1] += unit.vector[1];
...@@ -2928,8 +2953,8 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32 ...@@ -2928,8 +2953,8 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32
y = MOD(v.vector[1]>>16, pict->pDrawable->height); y = MOD(v.vector[1]>>16, pict->pDrawable->height);
x = MOD(v.vector[0]>>16, pict->pDrawable->width); x = MOD(v.vector[0]>>16, pict->pDrawable->width);
} }
if (RegionContainsPoint(pict->pCompositeClip, x, y, &box)) if (RegionContainsPoint(pict->pCompositeClip, x + dx, y + dy, &box))
buffer[i] = fetch(bits + (y + pict->pDrawable->y)*stride, x + pict->pDrawable->x, indexed); buffer[i] = fetch(bits + (y + dy)*stride, x + dx, indexed);
else else
buffer[i] = 0; buffer[i] = 0;
} }
...@@ -2952,8 +2977,8 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32 ...@@ -2952,8 +2977,8 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32
y = v.vector[1]>>16; y = v.vector[1]>>16;
x = v.vector[0]>>16; x = v.vector[0]>>16;
} }
buffer[i] = ((x < box.x1) | (x >= box.x2) | (y < box.y1) | (y >= box.y2)) ? buffer[i] = ((x < box.x1-dx) | (x >= box.x2-dx) | (y < box.y1-dy) | (y >= box.y2-dy)) ?
0 : fetch(bits + (y + pict->pDrawable->y)*stride, x + pict->pDrawable->x, indexed); 0 : fetch(bits + (y + dy)*stride, x + dx, indexed);
} }
v.vector[0] += unit.vector[0]; v.vector[0] += unit.vector[0];
v.vector[1] += unit.vector[1]; v.vector[1] += unit.vector[1];
...@@ -2971,8 +2996,8 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32 ...@@ -2971,8 +2996,8 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32
y = v.vector[1]>>16; y = v.vector[1]>>16;
x = v.vector[0]>>16; x = v.vector[0]>>16;
} }
if (RegionContainsPoint(pict->pCompositeClip, x, y, &box)) if (RegionContainsPoint(pict->pCompositeClip, x + dx, y + dy, &box))
buffer[i] = fetch(bits + (y + pict->pDrawable->y)*stride, x + pict->pDrawable->x, indexed); buffer[i] = fetch(bits + (y + dy)*stride, x + dx, indexed);
else else
buffer[i] = 0; buffer[i] = 0;
} }
...@@ -2985,7 +3010,6 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32 ...@@ -2985,7 +3010,6 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32
} else if (pict->filter == PictFilterBilinear) { } else if (pict->filter == PictFilterBilinear) {
if (pict->repeatType == RepeatNormal) { if (pict->repeatType == RepeatNormal) {
if (RegionNumRects(pict->pCompositeClip) == 1) { if (RegionNumRects(pict->pCompositeClip) == 1) {
box = pict->pCompositeClip->extents;
for (i = 0; i < width; ++i) { for (i = 0; i < width; ++i) {
if (!v.vector[2]) { if (!v.vector[2]) {
buffer[i] = 0; buffer[i] = 0;
...@@ -3020,13 +3044,13 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32 ...@@ -3020,13 +3044,13 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32
y1 = MOD (y1, pict->pDrawable->height); y1 = MOD (y1, pict->pDrawable->height);
y2 = MOD (y2, pict->pDrawable->height); y2 = MOD (y2, pict->pDrawable->height);
b = bits + (y1 + pict->pDrawable->y)*stride; b = bits + (y1 + dy)*stride;
tl = fetch(b, x1 + pict->pDrawable->x, indexed); tl = fetch(b, x1 + dx, indexed);
tr = fetch(b, x2 + pict->pDrawable->x, indexed); tr = fetch(b, x2 + dx, indexed);
b = bits + (y2 + pict->pDrawable->y)*stride; b = bits + (y2 + dy)*stride;
bl = fetch(b, x1 + pict->pDrawable->x, indexed); bl = fetch(b, x1 + dx, indexed);
br = fetch(b, x2 + pict->pDrawable->x, indexed); br = fetch(b, x2 + dx, indexed);
ft = FbGet8(tl,0) * idistx + FbGet8(tr,0) * distx; ft = FbGet8(tl,0) * idistx + FbGet8(tr,0) * distx;
fb = FbGet8(bl,0) * idistx + FbGet8(br,0) * distx; fb = FbGet8(bl,0) * idistx + FbGet8(br,0) * distx;
...@@ -3081,17 +3105,17 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32 ...@@ -3081,17 +3105,17 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32
y1 = MOD (y1, pict->pDrawable->height); y1 = MOD (y1, pict->pDrawable->height);
y2 = MOD (y2, pict->pDrawable->height); y2 = MOD (y2, pict->pDrawable->height);
b = bits + (y1 + pict->pDrawable->y)*stride; b = bits + (y1 + dy)*stride;
tl = RegionContainsPoint(pict->pCompositeClip, x1, y1, &box) tl = RegionContainsPoint(pict->pCompositeClip, x1 + dx, y1 + dy, &box)
? fetch(b, x1 + pict->pDrawable->x, indexed) : 0; ? fetch(b, x1 + dx, indexed) : 0;
tr = RegionContainsPoint(pict->pCompositeClip, x2, y1, &box) tr = RegionContainsPoint(pict->pCompositeClip, x2 + dx, y1 + dy, &box)
? fetch(b, x2 + pict->pDrawable->x, indexed) : 0; ? fetch(b, x2 + dx, indexed) : 0;
b = bits + (y2 + pict->pDrawable->y)*stride; b = bits + (y2 + dy)*stride;
bl = RegionContainsPoint(pict->pCompositeClip, x1, y2, &box) bl = RegionContainsPoint(pict->pCompositeClip, x1 + dx, y2 + dy, &box)
? fetch(b, x1 + pict->pDrawable->x, indexed) : 0; ? fetch(b, x1 + dx, indexed) : 0;
br = RegionContainsPoint(pict->pCompositeClip, x2, y2, &box) br = RegionContainsPoint(pict->pCompositeClip, x2 + dx, y2 + dy, &box)
? fetch(b, x2 + pict->pDrawable->x, indexed) : 0; ? fetch(b, x2 + dx, indexed) : 0;
ft = FbGet8(tl,0) * idistx + FbGet8(tr,0) * distx; ft = FbGet8(tl,0) * idistx + FbGet8(tr,0) * distx;
fb = FbGet8(bl,0) * idistx + FbGet8(br,0) * distx; fb = FbGet8(bl,0) * idistx + FbGet8(br,0) * distx;
...@@ -3145,13 +3169,13 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32 ...@@ -3145,13 +3169,13 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32
idistx = 256 - distx; idistx = 256 - distx;
idisty = 256 - disty; idisty = 256 - disty;
b = bits + (y1 + pict->pDrawable->y)*stride; b = bits + (y1 + dy)*stride;
x_off = x1 + pict->pDrawable->x; x_off = x1 + dx;
x1_out = (x1 < box.x1) | (x1 >= box.x2); x1_out = (x1 < box.x1-dx) | (x1 >= box.x2-dx);
x2_out = (x2 < box.x1) | (x2 >= box.x2); x2_out = (x2 < box.x1-dx) | (x2 >= box.x2-dx);
y1_out = (y1 < box.y1) | (y1 >= box.y2); y1_out = (y1 < box.y1-dy) | (y1 >= box.y2-dy);
y2_out = (y2 < box.y1) | (y2 >= box.y2); y2_out = (y2 < box.y1-dy) | (y2 >= box.y2-dy);
tl = x1_out|y1_out ? 0 : fetch(b, x_off, indexed); tl = x1_out|y1_out ? 0 : fetch(b, x_off, indexed);
tr = x2_out|y1_out ? 0 : fetch(b, x_off + 1, indexed); tr = x2_out|y1_out ? 0 : fetch(b, x_off + 1, indexed);
...@@ -3207,17 +3231,17 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32 ...@@ -3207,17 +3231,17 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32
idistx = 256 - distx; idistx = 256 - distx;
idisty = 256 - disty; idisty = 256 - disty;
b = bits + (y1 + pict->pDrawable->y)*stride; b = bits + (y1 + dy)*stride;
x_off = x1 + pict->pDrawable->x; x_off = x1 + dx;
tl = RegionContainsPoint(pict->pCompositeClip, x1, y1, &box) tl = RegionContainsPoint(pict->pCompositeClip, x1 + dx, y1 + dy, &box)
? fetch(b, x_off, indexed) : 0; ? fetch(b, x_off, indexed) : 0;
tr = RegionContainsPoint(pict->pCompositeClip, x2, y1, &box) tr = RegionContainsPoint(pict->pCompositeClip, x2 + dx, y1 + dy, &box)
? fetch(b, x_off + 1, indexed) : 0; ? fetch(b, x_off + 1, indexed) : 0;
b += stride; b += stride;
bl = RegionContainsPoint(pict->pCompositeClip, x1, y2, &box) bl = RegionContainsPoint(pict->pCompositeClip, x1 + dx, y2 + dy, &box)
? fetch(b, x_off, indexed) : 0; ? fetch(b, x_off, indexed) : 0;
br = RegionContainsPoint(pict->pCompositeClip, x2, y2, &box) br = RegionContainsPoint(pict->pCompositeClip, x2 + dx, y2 + dy, &box)
? fetch(b, x_off + 1, indexed) : 0; ? fetch(b, x_off + 1, indexed) : 0;
ft = FbGet8(tl,0) * idistx + FbGet8(tr,0) * distx; ft = FbGet8(tl,0) * idistx + FbGet8(tr,0) * distx;
...@@ -3275,9 +3299,9 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32 ...@@ -3275,9 +3299,9 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32
for (x = x1; x < x2; x++) { for (x = x1; x < x2; x++) {
if (*p) { if (*p) {
int tx = (pict->repeatType == RepeatNormal) ? MOD (x, pict->pDrawable->width) : x; int tx = (pict->repeatType == RepeatNormal) ? MOD (x, pict->pDrawable->width) : x;
if (RegionContainsPoint(pict->pCompositeClip, tx, ty, &box)) { if (RegionContainsPoint(pict->pCompositeClip, tx + dx, ty + dy, &box)) {
FbBits *b = bits + (ty + pict->pDrawable->y)*stride; FbBits *b = bits + (ty + dy)*stride;
CARD32 c = fetch(b, tx + pict->pDrawable->x, indexed); CARD32 c = fetch(b, tx + dx, indexed);
srtot += Red(c) * *p; srtot += Red(c) * *p;
sgtot += Green(c) * *p; sgtot += Green(c) * *p;
......
nx-X11/programs/Xserver/fb/fbgc.c
View file @ f7207bcd
...@@ -98,9 +98,13 @@ fbPadPixmap (PixmapPtr pPixmap) ...@@ -98,9 +98,13 @@ fbPadPixmap (PixmapPtr pPixmap)
FbBits mask; FbBits mask;
int height; int height;
int w; int w;
int stride;
int bpp;
_X_UNUSED int xOff, yOff;
fbGetDrawable (&pPixmap->drawable, bits, stride, bpp, xOff, yOff);
width = pPixmap->drawable.width * pPixmap->drawable.bitsPerPixel; width = pPixmap->drawable.width * pPixmap->drawable.bitsPerPixel;
bits = pPixmap->devPrivate.ptr;
height = pPixmap->drawable.height; height = pPixmap->drawable.height;
mask = FbBitsMask (0, width); mask = FbBitsMask (0, width);
while (height--) while (height--)
...@@ -112,7 +116,8 @@ fbPadPixmap (PixmapPtr pPixmap) ...@@ -112,7 +116,8 @@ fbPadPixmap (PixmapPtr pPixmap)
b = b | FbScrRight(b, w); b = b | FbScrRight(b, w);
w <<= 1; w <<= 1;
} }
*bits++ = b; *bits = b;
bits += stride;
} }
} }
......
nx-X11/programs/Xserver/fb/fbpict.h
View file @ f7207bcd
...@@ -171,7 +171,7 @@ ...@@ -171,7 +171,7 @@
x = (x + ((x >> 8) & 0xff00ff)) >> 8; \ x = (x + ((x >> 8) & 0xff00ff)) >> 8; \
x &= 0xff00ff; \ x &= 0xff00ff; \
x += (y >> 8) & 0xff00ff; \ x += (y >> 8) & 0xff00ff; \
x |= 0x1000100 - ((t >> 8) & 0xff00ff); \ x |= 0x1000100 - ((x >> 8) & 0xff00ff); \
x &= 0xff00ff; \ x &= 0xff00ff; \
x <<= 8; \ x <<= 8; \
x += t; \ x += t; \
......
nx-X11/programs/Xserver/render/picture.h
View file @ f7207bcd
/* /*
*
* Copyright © 2000 SuSE, Inc. * Copyright © 2000 SuSE, Inc.
* *
* Permission to use, copy, modify, distribute, and sell this software and its * Permission to use, copy, modify, distribute, and sell this software and its
...@@ -98,6 +99,15 @@ typedef struct _Picture *PicturePtr; ...@@ -98,6 +99,15 @@ typedef struct _Picture *PicturePtr;
#define PICT_c8 PICT_FORMAT(8,PICT_TYPE_COLOR,0,0,0,0) #define PICT_c8 PICT_FORMAT(8,PICT_TYPE_COLOR,0,0,0,0)
#define PICT_g8 PICT_FORMAT(8,PICT_TYPE_GRAY,0,0,0,0) #define PICT_g8 PICT_FORMAT(8,PICT_TYPE_GRAY,0,0,0,0)
#define PICT_x4a4 PICT_FORMAT(8,PICT_TYPE_A,4,0,0,0)
#define PICT_x4r1g2b1 PICT_FORMAT(8,PICT_TYPE_ARGB,0,1,2,1)
#define PICT_x4b1g2r1 PICT_FORMAT(8,PICT_TYPE_ABGR,0,1,2,1)
#define PICT_x4a1r1g1b1 PICT_FORMAT(8,PICT_TYPE_ARGB,1,1,1,1)
#define PICT_x4a1b1g1r1 PICT_FORMAT(8,PICT_TYPE_ABGR,1,1,1,1)
#define PICT_x4c4 PICT_FORMAT(8,PICT_TYPE_COLOR,0,0,0,0)
#define PICT_x4g4 PICT_FORMAT(8,PICT_TYPE_GRAY,0,0,0,0)
/* 4bpp formats */ /* 4bpp formats */
#define PICT_a4 PICT_FORMAT(4,PICT_TYPE_A,4,0,0,0) #define PICT_a4 PICT_FORMAT(4,PICT_TYPE_A,4,0,0,0)
#define PICT_r1g2b1 PICT_FORMAT(4,PICT_TYPE_ARGB,0,1,2,1) #define PICT_r1g2b1 PICT_FORMAT(4,PICT_TYPE_ARGB,0,1,2,1)
......
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