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xserver/fb/fbcompose.c

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/*
* $XdotOrg: xc/programs/Xserver/fb/fbcompose.c,v 1.10 2005/07/01 10:05:42 lars Exp $
* $XFree86: xc/programs/Xserver/fb/fbcompose.c,v 1.17tsi Exp $
*
* Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc.
* 2005 Lars Knoll & Zack Rusin, Trolltech
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include "fb.h"
#ifdef RENDER
#include "picturestr.h"
#include "mipict.h"
#include "fbpict.h"
#include <math.h>
#define mod(a,b) ((b) == 1 ? 0 : (a) >= 0 ? (a) % (b) : (b) - (-a) % (b))
#define SCANLINE_BUFFER_LENGTH 2048
typedef FASTCALL void (*fetchProc)(const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed);
/*
* All of the fetch functions
*/
static FASTCALL void
fbFetch_a8r8g8b8 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed)
{
memcpy(buffer, (const CARD32 *)bits + x, width*sizeof(CARD32));
}
static FASTCALL void
fbFetch_x8r8g8b8 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed)
{
const CARD32 *pixel = (const CARD32 *)bits + x;
const CARD32 *end = pixel + width;
while (pixel < end) {
*buffer++ = *pixel++ | 0xff000000;
}
}
static FASTCALL void
fbFetch_a8b8g8r8 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed)
{
const CARD32 *pixel = (CARD32 *)bits + x;
const CARD32 *end = pixel + width;
while (pixel < end) {
*buffer++ = ((*pixel & 0xff00ff00) |
((*pixel >> 16) & 0xff) |
((*pixel & 0xff) << 16));
++pixel;
}
}
static FASTCALL void
fbFetch_x8b8g8r8 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed)
{
const CARD32 *pixel = (CARD32 *)bits + x;
const CARD32 *end = pixel + width;
while (pixel < end) {
*buffer++ = 0xff000000 |
((*pixel & 0x0000ff00) |
((*pixel >> 16) & 0xff) |
((*pixel & 0xff) << 16));
++pixel;
}
}
static FASTCALL void
fbFetch_r8g8b8 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed)
{
const CARD8 *pixel = (const CARD8 *)bits + 3*x;
const CARD8 *end = pixel + 3*width;
while (pixel < end) {
CARD32 b = Fetch24(pixel) | 0xff000000;
pixel += 3;
*buffer++ = b;
}
}
static FASTCALL void
fbFetch_b8g8r8 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed)
{
const CARD8 *pixel = (const CARD8 *)bits + 3*x;
const CARD8 *end = pixel + 3*width;
while (pixel < end) {
CARD32 b = 0xff000000;
#if IMAGE_BYTE_ORDER == MSBFirst
b |= (*pixel++);
b |= (*pixel++ << 8);
b |= (*pixel++ << 16);
#else
b |= (*pixel++ << 16);
b |= (*pixel++ << 8);
b |= (*pixel++);
#endif
}
}
static FASTCALL void
fbFetch_r5g6b5 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed)
{
const CARD16 *pixel = (const CARD16 *)bits + x;
const CARD16 *end = pixel + width;
while (pixel < end) {
CARD32 p = *pixel++;
CARD32 r = (((p) << 3) & 0xf8) |
(((p) << 5) & 0xfc00) |
(((p) << 8) & 0xf80000);
r |= (r >> 5) & 0x70007;
r |= (r >> 6) & 0x300;
*buffer++ = 0xff000000 | r;
}
}
static FASTCALL void
fbFetch_b5g6r5 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed)
{
const CARD16 *pixel = (const CARD16 *)bits + x;
const CARD16 *end = pixel + width;
while (pixel < end) {
CARD32 p = *pixel++;
CARD32 r,g,b;
b = ((p & 0xf800) | ((p & 0xe000) >> 5)) >> 8;
g = ((p & 0x07e0) | ((p & 0x0600) >> 6)) << 5;
r = ((p & 0x001c) | ((p & 0x001f) << 5)) << 14;
*buffer++ = (0xff000000 | r | g | b);
}
}
static FASTCALL void
fbFetch_a1r5g5b5 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed)
{
const CARD16 *pixel = (const CARD16 *)bits + x;
const CARD16 *end = pixel + width;
while (pixel < end) {
CARD32 p = *pixel++;
CARD32 r,g,b, a;
a = (CARD32) ((CARD8) (0 - ((p & 0x8000) >> 15))) << 24;
r = ((p & 0x7c00) | ((p & 0x7000) >> 5)) << 9;
g = ((p & 0x03e0) | ((p & 0x0380) >> 5)) << 6;
b = ((p & 0x001c) | ((p & 0x001f) << 5)) >> 2;
*buffer++ = (a | r | g | b);
}
}
static FASTCALL void
fbFetch_x1r5g5b5 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed)
{
const CARD16 *pixel = (const CARD16 *)bits + x;
const CARD16 *end = pixel + width;
while (pixel < end) {
CARD32 p = *pixel++;
CARD32 r,g,b;
r = ((p & 0x7c00) | ((p & 0x7000) >> 5)) << 9;
g = ((p & 0x03e0) | ((p & 0x0380) >> 5)) << 6;
b = ((p & 0x001c) | ((p & 0x001f) << 5)) >> 2;
*buffer++ = (0xff000000 | r | g | b);
}
}
static FASTCALL void
fbFetch_a1b5g5r5 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed)
{
const CARD16 *pixel = (const CARD16 *)bits + x;
const CARD16 *end = pixel + width;
while (pixel < end) {
CARD32 p = *pixel++;
CARD32 r,g,b, a;
a = (CARD32) ((CARD8) (0 - ((p & 0x8000) >> 15))) << 24;
b = ((p & 0x7c00) | ((p & 0x7000) >> 5)) >> 7;
g = ((p & 0x03e0) | ((p & 0x0380) >> 5)) << 6;
r = ((p & 0x001c) | ((p & 0x001f) << 5)) << 14;
*buffer++ = (a | r | g | b);
}
}
static FASTCALL void
fbFetch_x1b5g5r5 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed)
{
const CARD16 *pixel = (const CARD16 *)bits + x;
const CARD16 *end = pixel + width;
while (pixel < end) {
CARD32 p = *pixel++;
CARD32 r,g,b;
b = ((p & 0x7c00) | ((p & 0x7000) >> 5)) >> 7;
g = ((p & 0x03e0) | ((p & 0x0380) >> 5)) << 6;
r = ((p & 0x001c) | ((p & 0x001f) << 5)) << 14;
*buffer++ = (0xff000000 | r | g | b);
}
}
static FASTCALL void
fbFetch_a4r4g4b4 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed)
{
const CARD16 *pixel = (const CARD16 *)bits + x;
const CARD16 *end = pixel + width;
while (pixel < end) {
CARD32 p = *pixel++;
CARD32 r,g,b, a;
a = ((p & 0xf000) | ((p & 0xf000) >> 4)) << 16;
r = ((p & 0x0f00) | ((p & 0x0f00) >> 4)) << 12;
g = ((p & 0x00f0) | ((p & 0x00f0) >> 4)) << 8;
b = ((p & 0x000f) | ((p & 0x000f) << 4));
*buffer++ = (a | r | g | b);
}
}
static FASTCALL void
fbFetch_x4r4g4b4 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed)
{
const CARD16 *pixel = (const CARD16 *)bits + x;
const CARD16 *end = pixel + width;
while (pixel < end) {
CARD32 p = *pixel++;
CARD32 r,g,b;
r = ((p & 0x0f00) | ((p & 0x0f00) >> 4)) << 12;
g = ((p & 0x00f0) | ((p & 0x00f0) >> 4)) << 8;
b = ((p & 0x000f) | ((p & 0x000f) << 4));
*buffer++ = (0xff000000 | r | g | b);
}
}
static FASTCALL void
fbFetch_a4b4g4r4 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed)
{
const CARD16 *pixel = (const CARD16 *)bits + x;
const CARD16 *end = pixel + width;
while (pixel < end) {
CARD32 p = *pixel++;
CARD32 r,g,b, a;
a = ((p & 0xf000) | ((p & 0xf000) >> 4)) << 16;
b = ((p & 0x0f00) | ((p & 0x0f00) >> 4)) << 12;
g = ((p & 0x00f0) | ((p & 0x00f0) >> 4)) << 8;
r = ((p & 0x000f) | ((p & 0x000f) << 4));
*buffer++ = (a | r | g | b);
}
}
static FASTCALL void
fbFetch_x4b4g4r4 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed)
{
const CARD16 *pixel = (const CARD16 *)bits + x;
const CARD16 *end = pixel + width;
while (pixel < end) {
CARD32 p = *pixel++;
CARD32 r,g,b;
b = ((p & 0x0f00) | ((p & 0x0f00) >> 4)) << 12;
g = ((p & 0x00f0) | ((p & 0x00f0) >> 4)) << 8;
r = ((p & 0x000f) | ((p & 0x000f) << 4));
*buffer++ = (0xff000000 | r | g | b);
}
}
static FASTCALL void
fbFetch_a8 (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) {
*buffer++ = (*pixel++) << 24;
}
}
static FASTCALL void
fbFetch_r3g3b2 (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) {
CARD32 p = *pixel++;
CARD32 r,g,b;
r = ((p & 0xe0) | ((p & 0xe0) >> 3) | ((p & 0xc0) >> 6)) << 16;
g = ((p & 0x1c) | ((p & 0x18) >> 3) | ((p & 0x1c) << 3)) << 8;
b = (((p & 0x03) ) |
((p & 0x03) << 2) |
((p & 0x03) << 4) |
((p & 0x03) << 6));
*buffer++ = (0xff000000 | r | g | b);
}
}
static FASTCALL void
fbFetch_b2g3r3 (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) {
CARD32 p = *pixel++;
CARD32 r,g,b;
b = (((p & 0xc0) ) |
((p & 0xc0) >> 2) |
((p & 0xc0) >> 4) |
((p & 0xc0) >> 6));
g = ((p & 0x38) | ((p & 0x38) >> 3) | ((p & 0x30) << 2)) << 8;
r = (((p & 0x07) ) |
((p & 0x07) << 3) |
((p & 0x06) << 6)) << 16;
*buffer++ = (0xff000000 | r | g | b);
}
}
static FASTCALL void
fbFetch_a2r2g2b2 (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) {
CARD32 p = *pixel++;
CARD32 a,r,g,b;
a = ((p & 0xc0) * 0x55) << 18;
r = ((p & 0x30) * 0x55) << 12;
g = ((p & 0x0c) * 0x55) << 6;
b = ((p & 0x03) * 0x55);
*buffer++ = a|r|g|b;
}
}
static FASTCALL void
fbFetch_a2b2g2r2 (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) {
CARD32 p = *pixel++;
CARD32 a,r,g,b;
a = ((p & 0xc0) * 0x55) << 18;
b = ((p & 0x30) * 0x55) >> 6;
g = ((p & 0x0c) * 0x55) << 6;
r = ((p & 0x03) * 0x55) << 16;
*buffer++ = a|r|g|b;
}
}
static FASTCALL void
fbFetch_c8 (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) {
CARD32 p = *pixel++;
*buffer++ = indexed->rgba[p];
}
}
#define Fetch8(l,o) (((CARD8 *) (l))[(o) >> 2])
#if IMAGE_BYTE_ORDER == MSBFirst
#define Fetch4(l,o) ((o) & 2 ? Fetch8(l,o) & 0xf : Fetch8(l,o) >> 4)
#else
#define Fetch4(l,o) ((o) & 2 ? Fetch8(l,o) >> 4 : Fetch8(l,o) & 0xf)
#endif
static FASTCALL void
fbFetch_a4 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 p = Fetch4(bits, i + x);
p |= p << 4;
*buffer++ = p << 24;
}
}
static FASTCALL void
fbFetch_r1g2b1 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 p = Fetch4(bits, i + x);
CARD32 r,g,b;
r = ((p & 0x8) * 0xff) << 13;
g = ((p & 0x6) * 0x55) << 7;
b = ((p & 0x1) * 0xff);
*buffer++ = 0xff000000|r|g|b;
}
}
static FASTCALL void
fbFetch_b1g2r1 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 p = Fetch4(bits, i + x);
CARD32 r,g,b;
b = ((p & 0x8) * 0xff) >> 3;
g = ((p & 0x6) * 0x55) << 7;
r = ((p & 0x1) * 0xff) << 16;
*buffer++ = 0xff000000|r|g|b;
}
}
static FASTCALL void
fbFetch_a1r1g1b1 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 p = Fetch4(bits, i + x);
CARD32 a,r,g,b;
a = ((p & 0x8) * 0xff) << 21;
r = ((p & 0x4) * 0xff) << 14;
g = ((p & 0x2) * 0xff) << 7;
b = ((p & 0x1) * 0xff);
*buffer++ = a|r|g|b;
}
}
static FASTCALL void
fbFetch_a1b1g1r1 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 p = Fetch4(bits, i + x);
CARD32 a,r,g,b;
a = ((p & 0x8) * 0xff) << 21;
r = ((p & 0x4) * 0xff) >> 3;
g = ((p & 0x2) * 0xff) << 7;
b = ((p & 0x1) * 0xff) << 16;
*buffer++ = a|r|g|b;
}
}
static FASTCALL void
fbFetch_c4 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 p = Fetch4(bits, i + x);
*buffer++ = indexed->rgba[p];
}
}
static FASTCALL void
fbFetch_a1 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 p = ((CARD32 *)bits)[(i + x) >> 5];
CARD32 a;
#if BITMAP_BIT_ORDER == MSBFirst
a = p >> (0x1f - ((i+x) & 0x1f));
#else
a = p >> ((i+x) & 0x1f);
#endif
a = a & 1;
a |= a << 1;
a |= a << 2;
a |= a << 4;
*buffer++ = a << 24;
}
}
static FASTCALL void
fbFetch_g1 (const FbBits *bits, int x, int width, CARD32 *buffer, miIndexedPtr indexed)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 p = ((CARD32 *)bits)[(i+x) >> 5];
CARD32 a;
#if BITMAP_BIT_ORDER == MSBFirst
a = p >> (0x1f - ((i+x) & 0x1f));
#else
a = p >> ((i+x) & 0x1f);
#endif
a = a & 1;
*buffer++ = indexed->rgba[a];
}
}
static fetchProc fetchProcForPicture (PicturePtr pict)
{
switch(pict->format) {
case PICT_a8r8g8b8: return fbFetch_a8r8g8b8;
case PICT_x8r8g8b8: return fbFetch_x8r8g8b8;
case PICT_a8b8g8r8: return fbFetch_a8b8g8r8;
case PICT_x8b8g8r8: return fbFetch_x8b8g8r8;
/* 24bpp formats */
case PICT_r8g8b8: return fbFetch_r8g8b8;
case PICT_b8g8r8: return fbFetch_b8g8r8;
/* 16bpp formats */
case PICT_r5g6b5: return fbFetch_r5g6b5;
case PICT_b5g6r5: return fbFetch_b5g6r5;
case PICT_a1r5g5b5: return fbFetch_a1r5g5b5;
case PICT_x1r5g5b5: return fbFetch_x1r5g5b5;
case PICT_a1b5g5r5: return fbFetch_a1b5g5r5;
case PICT_x1b5g5r5: return fbFetch_x1b5g5r5;
case PICT_a4r4g4b4: return fbFetch_a4r4g4b4;
case PICT_x4r4g4b4: return fbFetch_x4r4g4b4;
case PICT_a4b4g4r4: return fbFetch_a4b4g4r4;
case PICT_x4b4g4r4: return fbFetch_x4b4g4r4;
/* 8bpp formats */
case PICT_a8: return fbFetch_a8;
case PICT_r3g3b2: return fbFetch_r3g3b2;
case PICT_b2g3r3: return fbFetch_b2g3r3;
case PICT_a2r2g2b2: return fbFetch_a2r2g2b2;
case PICT_a2b2g2r2: return fbFetch_a2b2g2r2;
case PICT_c8: return fbFetch_c8;
case PICT_g8: return fbFetch_c8;
/* 4bpp formats */
case PICT_a4: return fbFetch_a4;
case PICT_r1g2b1: return fbFetch_r1g2b1;
case PICT_b1g2r1: return fbFetch_b1g2r1;
case PICT_a1r1g1b1: return fbFetch_a1r1g1b1;
case PICT_a1b1g1r1: return fbFetch_a1b1g1r1;
case PICT_c4: return fbFetch_c4;
case PICT_g4: return fbFetch_c4;
/* 1bpp formats */
case PICT_a1: return fbFetch_a1;
case PICT_g1: return fbFetch_g1;
default:
return 0;
}
}
/*
* Pixel wise fetching
*/
typedef FASTCALL CARD32 (*fetchPixelProc)(const FbBits *bits, int offset, miIndexedPtr indexed);
static FASTCALL CARD32
fbFetchPixel_a8r8g8b8 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
return ((CARD32 *)bits)[offset];
}
static FASTCALL CARD32
fbFetchPixel_x8r8g8b8 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
return ((CARD32 *)bits)[offset] | 0xff000000;
}
static FASTCALL CARD32
fbFetchPixel_a8b8g8r8 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = ((CARD32 *)bits)[offset];
return ((pixel & 0xff000000) |
((pixel >> 16) & 0xff) |
(pixel & 0x0000ff00) |
((pixel & 0xff) << 16));
}
static FASTCALL CARD32
fbFetchPixel_x8b8g8r8 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = ((CARD32 *)bits)[offset];
return ((0xff000000) |
((pixel >> 16) & 0xff) |
(pixel & 0x0000ff00) |
((pixel & 0xff) << 16));
}
static FASTCALL CARD32
fbFetchPixel_r8g8b8 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD8 *pixel = ((CARD8 *) bits) + (offset*3);
#if IMAGE_BYTE_ORDER == MSBFirst
return (0xff000000 |
(pixel[0] << 16) |
(pixel[1] << 8) |
(pixel[2]));
#else
return (0xff000000 |
(pixel[2] << 16) |
(pixel[1] << 8) |
(pixel[0]));
#endif
}
static FASTCALL CARD32
fbFetchPixel_b8g8r8 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD8 *pixel = ((CARD8 *) bits) + (offset*3);
#if IMAGE_BYTE_ORDER == MSBFirst
return (0xff000000 |
(pixel[2] << 16) |
(pixel[1] << 8) |
(pixel[0]));
#else
return (0xff000000 |
(pixel[0] << 16) |
(pixel[1] << 8) |
(pixel[2]));
#endif
}
static FASTCALL CARD32
fbFetchPixel_r5g6b5 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = ((CARD16 *) bits)[offset];
CARD32 r,g,b;
r = ((pixel & 0xf800) | ((pixel & 0xe000) >> 5)) << 8;
g = ((pixel & 0x07e0) | ((pixel & 0x0600) >> 6)) << 5;
b = ((pixel & 0x001c) | ((pixel & 0x001f) << 5)) >> 2;
return (0xff000000 | r | g | b);
}
static FASTCALL CARD32
fbFetchPixel_b5g6r5 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = ((CARD16 *) bits)[offset];
CARD32 r,g,b;
b = ((pixel & 0xf800) | ((pixel & 0xe000) >> 5)) >> 8;
g = ((pixel & 0x07e0) | ((pixel & 0x0600) >> 6)) << 5;
r = ((pixel & 0x001c) | ((pixel & 0x001f) << 5)) << 14;
return (0xff000000 | r | g | b);
}
static FASTCALL CARD32
fbFetchPixel_a1r5g5b5 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = ((CARD16 *) bits)[offset];
CARD32 a,r,g,b;
a = (CARD32) ((CARD8) (0 - ((pixel & 0x8000) >> 15))) << 24;
r = ((pixel & 0x7c00) | ((pixel & 0x7000) >> 5)) << 9;
g = ((pixel & 0x03e0) | ((pixel & 0x0380) >> 5)) << 6;
b = ((pixel & 0x001c) | ((pixel & 0x001f) << 5)) >> 2;
return (a | r | g | b);
}
static FASTCALL CARD32
fbFetchPixel_x1r5g5b5 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = ((CARD16 *) bits)[offset];
CARD32 r,g,b;
r = ((pixel & 0x7c00) | ((pixel & 0x7000) >> 5)) << 9;
g = ((pixel & 0x03e0) | ((pixel & 0x0380) >> 5)) << 6;
b = ((pixel & 0x001c) | ((pixel & 0x001f) << 5)) >> 2;
return (0xff000000 | r | g | b);
}
static FASTCALL CARD32
fbFetchPixel_a1b5g5r5 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = ((CARD16 *) bits)[offset];
CARD32 a,r,g,b;
a = (CARD32) ((CARD8) (0 - ((pixel & 0x8000) >> 15))) << 24;
b = ((pixel & 0x7c00) | ((pixel & 0x7000) >> 5)) >> 7;
g = ((pixel & 0x03e0) | ((pixel & 0x0380) >> 5)) << 6;
r = ((pixel & 0x001c) | ((pixel & 0x001f) << 5)) << 14;
return (a | r | g | b);
}
static FASTCALL CARD32
fbFetchPixel_x1b5g5r5 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = ((CARD16 *) bits)[offset];
CARD32 r,g,b;
b = ((pixel & 0x7c00) | ((pixel & 0x7000) >> 5)) >> 7;
g = ((pixel & 0x03e0) | ((pixel & 0x0380) >> 5)) << 6;
r = ((pixel & 0x001c) | ((pixel & 0x001f) << 5)) << 14;
return (0xff000000 | r | g | b);
}
static FASTCALL CARD32
fbFetchPixel_a4r4g4b4 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = ((CARD16 *) bits)[offset];
CARD32 a,r,g,b;
a = ((pixel & 0xf000) | ((pixel & 0xf000) >> 4)) << 16;
r = ((pixel & 0x0f00) | ((pixel & 0x0f00) >> 4)) << 12;
g = ((pixel & 0x00f0) | ((pixel & 0x00f0) >> 4)) << 8;
b = ((pixel & 0x000f) | ((pixel & 0x000f) << 4));
return (a | r | g | b);
}
static FASTCALL CARD32
fbFetchPixel_x4r4g4b4 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = ((CARD16 *) bits)[offset];
CARD32 r,g,b;
r = ((pixel & 0x0f00) | ((pixel & 0x0f00) >> 4)) << 12;
g = ((pixel & 0x00f0) | ((pixel & 0x00f0) >> 4)) << 8;
b = ((pixel & 0x000f) | ((pixel & 0x000f) << 4));
return (0xff000000 | r | g | b);
}
static FASTCALL CARD32
fbFetchPixel_a4b4g4r4 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = ((CARD16 *) bits)[offset];
CARD32 a,r,g,b;
a = ((pixel & 0xf000) | ((pixel & 0xf000) >> 4)) << 16;
b = ((pixel & 0x0f00) | ((pixel & 0x0f00) >> 4)) << 12;
g = ((pixel & 0x00f0) | ((pixel & 0x00f0) >> 4)) << 8;
r = ((pixel & 0x000f) | ((pixel & 0x000f) << 4));
return (a | r | g | b);
}
static FASTCALL CARD32
fbFetchPixel_x4b4g4r4 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = ((CARD16 *) bits)[offset];
CARD32 r,g,b;
b = ((pixel & 0x0f00) | ((pixel & 0x0f00) >> 4)) << 12;
g = ((pixel & 0x00f0) | ((pixel & 0x00f0) >> 4)) << 8;
r = ((pixel & 0x000f) | ((pixel & 0x000f) << 4));
return (0xff000000 | r | g | b);
}
static FASTCALL CARD32
fbFetchPixel_a8 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = ((CARD8 *) bits)[offset];
return pixel << 24;
}
static FASTCALL CARD32
fbFetchPixel_r3g3b2 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = ((CARD8 *) bits)[offset];
CARD32 r,g,b;
r = ((pixel & 0xe0) | ((pixel & 0xe0) >> 3) | ((pixel & 0xc0) >> 6)) << 16;
g = ((pixel & 0x1c) | ((pixel & 0x18) >> 3) | ((pixel & 0x1c) << 3)) << 8;
b = (((pixel & 0x03) ) |
((pixel & 0x03) << 2) |
((pixel & 0x03) << 4) |
((pixel & 0x03) << 6));
return (0xff000000 | r | g | b);
}
static FASTCALL CARD32
fbFetchPixel_b2g3r3 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = ((CARD8 *) bits)[offset];
CARD32 r,g,b;
b = (((pixel & 0xc0) ) |
((pixel & 0xc0) >> 2) |
((pixel & 0xc0) >> 4) |
((pixel & 0xc0) >> 6));
g = ((pixel & 0x38) | ((pixel & 0x38) >> 3) | ((pixel & 0x30) << 2)) << 8;
r = (((pixel & 0x07) ) |
((pixel & 0x07) << 3) |
((pixel & 0x06) << 6)) << 16;
return (0xff000000 | r | g | b);
}
static FASTCALL CARD32
fbFetchPixel_a2r2g2b2 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = ((CARD8 *) bits)[offset];
CARD32 a,r,g,b;
a = ((pixel & 0xc0) * 0x55) << 18;
r = ((pixel & 0x30) * 0x55) << 12;
g = ((pixel & 0x0c) * 0x55) << 6;
b = ((pixel & 0x03) * 0x55);
return a|r|g|b;
}
static FASTCALL CARD32
fbFetchPixel_a2b2g2r2 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = ((CARD8 *) bits)[offset];
CARD32 a,r,g,b;
a = ((pixel & 0xc0) * 0x55) << 18;
b = ((pixel & 0x30) * 0x55) >> 6;
g = ((pixel & 0x0c) * 0x55) << 6;
r = ((pixel & 0x03) * 0x55) << 16;
return a|r|g|b;
}
static FASTCALL CARD32
fbFetchPixel_c8 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = ((CARD8 *) bits)[offset];
return indexed->rgba[pixel];
}
#define Fetch8(l,o) (((CARD8 *) (l))[(o) >> 2])
#if IMAGE_BYTE_ORDER == MSBFirst
#define Fetch4(l,o) ((o) & 2 ? Fetch8(l,o) & 0xf : Fetch8(l,o) >> 4)
#else
#define Fetch4(l,o) ((o) & 2 ? Fetch8(l,o) >> 4 : Fetch8(l,o) & 0xf)
#endif
static FASTCALL CARD32
fbFetchPixel_a4 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = Fetch4(bits, offset);
pixel |= pixel << 4;
return pixel << 24;
}
static FASTCALL CARD32
fbFetchPixel_r1g2b1 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = Fetch4(bits, offset);
CARD32 r,g,b;
r = ((pixel & 0x8) * 0xff) << 13;
g = ((pixel & 0x6) * 0x55) << 7;
b = ((pixel & 0x1) * 0xff);
return 0xff000000|r|g|b;
}
static FASTCALL CARD32
fbFetchPixel_b1g2r1 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = Fetch4(bits, offset);
CARD32 r,g,b;
b = ((pixel & 0x8) * 0xff) >> 3;
g = ((pixel & 0x6) * 0x55) << 7;
r = ((pixel & 0x1) * 0xff) << 16;
return 0xff000000|r|g|b;
}
static FASTCALL CARD32
fbFetchPixel_a1r1g1b1 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = Fetch4(bits, offset);
CARD32 a,r,g,b;
a = ((pixel & 0x8) * 0xff) << 21;
r = ((pixel & 0x4) * 0xff) << 14;
g = ((pixel & 0x2) * 0xff) << 7;
b = ((pixel & 0x1) * 0xff);
return a|r|g|b;
}
static FASTCALL CARD32
fbFetchPixel_a1b1g1r1 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = Fetch4(bits, offset);
CARD32 a,r,g,b;
a = ((pixel & 0x8) * 0xff) << 21;
r = ((pixel & 0x4) * 0xff) >> 3;
g = ((pixel & 0x2) * 0xff) << 7;
b = ((pixel & 0x1) * 0xff) << 16;
return a|r|g|b;
}
static FASTCALL CARD32
fbFetchPixel_c4 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = Fetch4(bits, offset);
return indexed->rgba[pixel];
}
static FASTCALL CARD32
fbFetchPixel_a1 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = ((CARD32 *)bits)[offset >> 5];
CARD32 a;
#if BITMAP_BIT_ORDER == MSBFirst
a = pixel >> (0x1f - (offset & 0x1f));
#else
a = pixel >> (offset & 0x1f);
#endif
a = a & 1;
a |= a << 1;
a |= a << 2;
a |= a << 4;
return a << 24;
}
static FASTCALL CARD32
fbFetchPixel_g1 (const FbBits *bits, int offset, miIndexedPtr indexed)
{
CARD32 pixel = ((CARD32 *)bits)[offset >> 5];
CARD32 a;
#if BITMAP_BIT_ORDER == MSBFirst
a = pixel >> (0x1f - (offset & 0x1f));
#else
a = pixel >> (offset & 0x1f);
#endif
a = a & 1;
return indexed->rgba[a];
}
static fetchPixelProc fetchPixelProcForPicture (PicturePtr pict)
{
switch(pict->format) {
case PICT_a8r8g8b8: return fbFetchPixel_a8r8g8b8;
case PICT_x8r8g8b8: return fbFetchPixel_x8r8g8b8;
case PICT_a8b8g8r8: return fbFetchPixel_a8b8g8r8;
case PICT_x8b8g8r8: return fbFetchPixel_x8b8g8r8;
/* 24bpp formats */
case PICT_r8g8b8: return fbFetchPixel_r8g8b8;
case PICT_b8g8r8: return fbFetchPixel_b8g8r8;
/* 16bpp formats */
case PICT_r5g6b5: return fbFetchPixel_r5g6b5;
case PICT_b5g6r5: return fbFetchPixel_b5g6r5;
case PICT_a1r5g5b5: return fbFetchPixel_a1r5g5b5;
case PICT_x1r5g5b5: return fbFetchPixel_x1r5g5b5;
case PICT_a1b5g5r5: return fbFetchPixel_a1b5g5r5;
case PICT_x1b5g5r5: return fbFetchPixel_x1b5g5r5;
case PICT_a4r4g4b4: return fbFetchPixel_a4r4g4b4;
case PICT_x4r4g4b4: return fbFetchPixel_x4r4g4b4;
case PICT_a4b4g4r4: return fbFetchPixel_a4b4g4r4;
case PICT_x4b4g4r4: return fbFetchPixel_x4b4g4r4;
/* 8bpp formats */
case PICT_a8: return fbFetchPixel_a8;
case PICT_r3g3b2: return fbFetchPixel_r3g3b2;
case PICT_b2g3r3: return fbFetchPixel_b2g3r3;
case PICT_a2r2g2b2: return fbFetchPixel_a2r2g2b2;
case PICT_a2b2g2r2: return fbFetchPixel_a2b2g2r2;
case PICT_c8: return fbFetchPixel_c8;
case PICT_g8: return fbFetchPixel_c8;
/* 4bpp formats */
case PICT_a4: return fbFetchPixel_a4;
case PICT_r1g2b1: return fbFetchPixel_r1g2b1;
case PICT_b1g2r1: return fbFetchPixel_b1g2r1;
case PICT_a1r1g1b1: return fbFetchPixel_a1r1g1b1;
case PICT_a1b1g1r1: return fbFetchPixel_a1b1g1r1;
case PICT_c4: return fbFetchPixel_c4;
case PICT_g4: return fbFetchPixel_c4;
/* 1bpp formats */
case PICT_a1: return fbFetchPixel_a1;
case PICT_g1: return fbFetchPixel_g1;
default:
return 0;
}
}
/*
* All the store functions
*/
typedef FASTCALL void (*storeProc) (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed);
#define Splita(v) CARD32 a = ((v) >> 24), r = ((v) >> 16) & 0xff, g = ((v) >> 8) & 0xff, b = (v) & 0xff
#define Split(v) CARD32 r = ((v) >> 16) & 0xff, g = ((v) >> 8) & 0xff, b = (v) & 0xff
static FASTCALL void
fbStore_a8r8g8b8 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
memcpy(((CARD32 *)bits) + x, values, width*sizeof(CARD32));
}
static FASTCALL void
fbStore_x8r8g8b8 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
CARD32 *pixel = (CARD32 *)bits + x;
for (i = 0; i < width; ++i)
*pixel++ = values[i] & 0xffffff;
}
static FASTCALL void
fbStore_a8b8g8r8 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
CARD32 *pixel = (CARD32 *)bits + x;
for (i = 0; i < width; ++i)
*pixel++ = (values[i] & 0xff00ff00) | ((values[i] >> 16) && 0xff) | ((values[i] & 0xff) << 16);
}
static FASTCALL void
fbStore_x8b8g8r8 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
CARD32 *pixel = (CARD32 *)bits + x;
for (i = 0; i < width; ++i)
*pixel++ = (values[i] & 0x0000ff00) | ((values[i] >> 16) && 0xff) | ((values[i] & 0xff) << 16);
}
static FASTCALL void
fbStore_r8g8b8 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
CARD8 *pixel = ((CARD8 *) bits) + x;
for (i = 0; i < width; ++i) {
Store24(pixel, values[i]);
pixel += 3;
}
}
static FASTCALL void
fbStore_b8g8r8 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
CARD8 *pixel = ((CARD8 *) bits) + x;
for (i = 0; i < width; ++i) {
#if IMAGE_BYTE_ORDER == MSBFirst
*pixel++ = Blue(values[i]);
*pixel++ = Green(values[i]);
*pixel++ = Red(values[i]);
#else
*pixel++ = Red(values[i]);
*pixel++ = Green(values[i]);
*pixel++ = Blue(values[i]);
#endif
}
}
static FASTCALL void
fbStore_r5g6b5 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
CARD16 *pixel = ((CARD16 *) bits) + x;
for (i = 0; i < width; ++i) {
CARD32 s = values[i];
*pixel++ = ((s >> 3) & 0x001f) |
((s >> 5) & 0x07e0) |
((s >> 8) & 0xf800);
}
}
static FASTCALL void
fbStore_b5g6r5 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
CARD16 *pixel = ((CARD16 *) bits) + x;
for (i = 0; i < width; ++i) {
Split(values[i]);
*pixel++ = (((b << 8) & 0xf800) |
((g << 3) & 0x07e0) |
((r >> 3) ));
}
}
static FASTCALL void
fbStore_a1r5g5b5 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
CARD16 *pixel = ((CARD16 *) bits) + x;
for (i = 0; i < width; ++i) {
Splita(values[i]);
*pixel++ = (((a << 8) & 0x8000) |
((r << 7) & 0x7c00) |
((g << 2) & 0x03e0) |
((b >> 3) ));
}
}
static FASTCALL void
fbStore_x1r5g5b5 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
CARD16 *pixel = ((CARD16 *) bits) + x;
for (i = 0; i < width; ++i) {
Split(values[i]);
*pixel++ = (((r << 7) & 0x7c00) |
((g << 2) & 0x03e0) |
((b >> 3) ));
}
}
static FASTCALL void
fbStore_a1b5g5r5 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
CARD16 *pixel = ((CARD16 *) bits) + x;
for (i = 0; i < width; ++i) {
Splita(values[i]);
*pixel++ = (((a << 8) & 0x8000) |
((b << 7) & 0x7c00) |
((g << 2) & 0x03e0) |
((r >> 3) ));
}
}
static FASTCALL void
fbStore_x1b5g5r5 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
CARD16 *pixel = ((CARD16 *) bits) + x;
for (i = 0; i < width; ++i) {
Split(values[i]);
*pixel++ = (((b << 7) & 0x7c00) |
((g << 2) & 0x03e0) |
((r >> 3) ));
}
}
static FASTCALL void
fbStore_a4r4g4b4 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
CARD16 *pixel = ((CARD16 *) bits) + x;
for (i = 0; i < width; ++i) {
Splita(values[i]);
*pixel++ = (((a << 8) & 0xf000) |
((r << 4) & 0x0f00) |
((g ) & 0x00f0) |
((b >> 4) ));
}
}
static FASTCALL void
fbStore_x4r4g4b4 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
CARD16 *pixel = ((CARD16 *) bits) + x;
for (i = 0; i < width; ++i) {
Split(values[i]);
*pixel++ = (((r << 4) & 0x0f00) |
((g ) & 0x00f0) |
((b >> 4) ));
}
}
static FASTCALL void
fbStore_a4b4g4r4 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
CARD16 *pixel = ((CARD16 *) bits) + x;
for (i = 0; i < width; ++i) {
Splita(values[i]);
*pixel++ = (((a << 8) & 0xf000) |
((b << 4) & 0x0f00) |
((g ) & 0x00f0) |
((r >> 4) ));
}
}
static FASTCALL void
fbStore_x4b4g4r4 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
CARD16 *pixel = ((CARD16 *) bits) + x;
for (i = 0; i < width; ++i) {
Split(values[i]);
*pixel++ = (((b << 4) & 0x0f00) |
((g ) & 0x00f0) |
((r >> 4) ));
}
}
static FASTCALL void
fbStore_a8 (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] >> 24;
}
}
static FASTCALL void
fbStore_r3g3b2 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
CARD8 *pixel = ((CARD8 *) bits) + x;
for (i = 0; i < width; ++i) {
Split(values[i]);
*pixel++ = (((r ) & 0xe0) |
((g >> 3) & 0x1c) |
((b >> 6) ));
}
}
static FASTCALL void
fbStore_b2g3r3 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
CARD8 *pixel = ((CARD8 *) bits) + x;
for (i = 0; i < width; ++i) {
Split(values[i]);
*pixel++ = (((b ) & 0xe0) |
((g >> 3) & 0x1c) |
((r >> 6) ));
}
}
static FASTCALL void
fbStore_a2r2g2b2 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
CARD8 *pixel = ((CARD8 *) bits) + x;
for (i = 0; i < width; ++i) {
Splita(values[i]);
*pixel++ = (((a ) & 0xc0) |
((r >> 2) & 0x30) |
((g >> 4) & 0x0c) |
((b >> 6) ));
}
}
static FASTCALL void
fbStore_c8 (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++ = miIndexToEnt24(indexed,values[i]);
}
}
#define Store8(l,o,v) (((CARD8 *) l)[(o) >> 3] = (v))
#if IMAGE_BYTE_ORDER == MSBFirst
#define Store4(l,o,v) Store8(l,o,((o) & 4 ? \
(Fetch8(l,o) & 0xf0) | (v) : \
(Fetch8(l,o) & 0x0f) | ((v) << 4)))
#else
#define Store4(l,o,v) Store8(l,o,((o) & 4 ? \
(Fetch8(l,o) & 0x0f) | ((v) << 4) : \
(Fetch8(l,o) & 0xf0) | (v)))
#endif
static FASTCALL void
fbStore_a4 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
for (i = 0; i < width; ++i) {
Store4(bits, i + x, values[i]>>28);
}
}
static FASTCALL void
fbStore_r1g2b1 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 pixel;
Split(values[i]);
pixel = (((r >> 4) & 0x8) |
((g >> 5) & 0x6) |
((b >> 7) ));
Store4(bits, i + x, pixel);
}
}
static FASTCALL void
fbStore_b1g2r1 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 pixel;
Split(values[i]);
pixel = (((b >> 4) & 0x8) |
((g >> 5) & 0x6) |
((r >> 7) ));
Store4(bits, i + x, pixel);
}
}
static FASTCALL void
fbStore_a1r1g1b1 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 pixel;
Splita(values[i]);
pixel = (((a >> 4) & 0x8) |
((r >> 5) & 0x4) |
((g >> 6) & 0x2) |
((b >> 7) ));
Store4(bits, i + x, pixel);
}
}
static FASTCALL void
fbStore_a1b1g1r1 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 pixel;
Splita(values[i]);
pixel = (((a >> 4) & 0x8) |
((b >> 5) & 0x4) |
((g >> 6) & 0x2) |
((r >> 7) ));
Store4(bits, i + x, pixel);
}
}
static FASTCALL void
fbStore_c4 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 pixel;
pixel = miIndexToEnt24(indexed, values[i]);
Store4(bits, i + x, pixel);
}
}
static FASTCALL void
fbStore_a1 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 *pixel = ((CARD32 *) bits) + ((i+x) >> 5);
CARD32 mask = FbStipMask((i+x) & 0x1f, 1);
CARD32 v = values[i] & 0x80000000 ? mask : 0;
*pixel = (*pixel & ~mask) | v;
}
}
static FASTCALL void
fbStore_g1 (FbBits *bits, const CARD32 *values, int x, int width, miIndexedPtr indexed)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 *pixel = ((CARD32 *) bits) + ((i+x) >> 5);
CARD32 mask = FbStipMask((i+x) & 0x1f, 1);
CARD32 v = miIndexToEntY24(indexed,values[i]) ? mask : 0;
*pixel = (*pixel & ~mask) | v;
}
}
static storeProc storeProcForPicture (PicturePtr pict)
{
switch(pict->format) {
case PICT_a8r8g8b8: return fbStore_a8r8g8b8;
case PICT_x8r8g8b8: return fbStore_x8r8g8b8;
case PICT_a8b8g8r8: return fbStore_a8b8g8r8;
case PICT_x8b8g8r8: return fbStore_x8b8g8r8;
/* 24bpp formats */
case PICT_r8g8b8: return fbStore_r8g8b8;
case PICT_b8g8r8: return fbStore_b8g8r8;
/* 16bpp formats */
case PICT_r5g6b5: return fbStore_r5g6b5;
case PICT_b5g6r5: return fbStore_b5g6r5;
case PICT_a1r5g5b5: return fbStore_a1r5g5b5;
case PICT_x1r5g5b5: return fbStore_x1r5g5b5;
case PICT_a1b5g5r5: return fbStore_a1b5g5r5;
case PICT_x1b5g5r5: return fbStore_x1b5g5r5;
case PICT_a4r4g4b4: return fbStore_a4r4g4b4;
case PICT_x4r4g4b4: return fbStore_x4r4g4b4;
case PICT_a4b4g4r4: return fbStore_a4b4g4r4;
case PICT_x4b4g4r4: return fbStore_x4b4g4r4;
/* 8bpp formats */
case PICT_a8: return fbStore_a8;
case PICT_r3g3b2: return fbStore_r3g3b2;
case PICT_b2g3r3: return fbStore_b2g3r3;
case PICT_a2r2g2b2: return fbStore_a2r2g2b2;
case PICT_c8: return fbStore_c8;
case PICT_g8: return fbStore_c8;
/* 4bpp formats */
case PICT_a4: return fbStore_a4;
case PICT_r1g2b1: return fbStore_r1g2b1;
case PICT_b1g2r1: return fbStore_b1g2r1;
case PICT_a1r1g1b1: return fbStore_a1r1g1b1;
case PICT_a1b1g1r1: return fbStore_a1b1g1r1;
case PICT_c4: return fbStore_c4;
case PICT_g4: return fbStore_c4;
/* 1bpp formats */
case PICT_a1: return fbStore_a1;
case PICT_g1: return fbStore_g1;
default:
return 0;
}
}
/*
* Combine src and mask
*/
static FASTCALL void
fbCombineMaskU (CARD32 *src, const CARD32 *mask, int width)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 a = mask[i] >> 24;
CARD32 s = src[i];
FbByteMul(s, a);
src[i] = s;
}
}
/*
* All of the composing functions
*/
static FASTCALL void
fbCombineClear (CARD32 *dest, const CARD32 *src, int width)
{
memset(dest, 0, width*sizeof(CARD32));
}
static FASTCALL void
fbCombineSrcU (CARD32 *dest, const CARD32 *src, int width)
{
memcpy(dest, src, width*sizeof(CARD32));
}
static FASTCALL void
fbCombineOverU (CARD32 *dest, const CARD32 *src, int width)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 s = src[i];
CARD32 d = dest[i];
CARD32 ia = Alpha(~s);
FbByteMulAdd(d, ia, s);
dest[i] = d;
}
}
static FASTCALL void
fbCombineOverReverseU (CARD32 *dest, const CARD32 *src, int width)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 s = src[i];
CARD32 d = dest[i];
CARD32 ia = Alpha(~dest[i]);
FbByteMulAdd(s, ia, d);
dest[i] = s;
}
}
static FASTCALL void
fbCombineInU (CARD32 *dest, const CARD32 *src, int width)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 s = src[i];
CARD32 a = Alpha(dest[i]);
FbByteMul(s, a);
dest[i] = s;
}
}
static FASTCALL void
fbCombineInReverseU (CARD32 *dest, const CARD32 *src, int width)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 d = dest[i];
CARD32 a = Alpha(src[i]);
FbByteMul(d, a);
dest[i] = d;
}
}
static FASTCALL void
fbCombineOutU (CARD32 *dest, const CARD32 *src, int width)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 s = src[i];
CARD32 a = Alpha(~dest[i]);
FbByteMul(s, a);
dest[i] = s;
}
}
static FASTCALL void
fbCombineOutReverseU (CARD32 *dest, const CARD32 *src, int width)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 d = dest[i];
CARD32 a = Alpha(~src[i]);
FbByteMul(d, a);
dest[i] = d;
}
}
static FASTCALL void
fbCombineAtopU (CARD32 *dest, const CARD32 *src, int width)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 s = src[i];
CARD32 d = dest[i];
CARD32 dest_a = Alpha(d);
CARD32 src_ia = Alpha(~s);
FbByteAddMul(s, dest_a, d, src_ia);
dest[i] = s;
}
}
static FASTCALL void
fbCombineAtopReverseU (CARD32 *dest, const CARD32 *src, int width)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 s = src[i];
CARD32 d = dest[i];
CARD32 src_a = Alpha(s);
CARD32 dest_ia = Alpha(~d);
FbByteAddMul(s, dest_ia, d, src_a);
dest[i] = s;
}
}
static FASTCALL void
fbCombineXorU (CARD32 *dest, const CARD32 *src, int width)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 s = src[i];
CARD32 d = dest[i];
CARD32 src_ia = Alpha(~s);
CARD32 dest_ia = Alpha(~d);
FbByteAddMul(s, dest_ia, d, src_ia);
dest[i] = s;
}
}
static FASTCALL void
fbCombineAddU (CARD32 *dest, const CARD32 *src, int width)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 s = src[i];
CARD32 d = dest[i];
FbByteAdd(d, s);
dest[i] = d;
}
}
static FASTCALL void
fbCombineSaturateU (CARD32 *dest, const CARD32 *src, int width)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 s = src[i];
CARD32 d = dest[i];
CARD16 sa, da;
sa = s >> 24;
da = ~d >> 24;
if (sa > da)
{
sa = FbIntDiv(da, sa);
FbByteMul(s, sa);
}
FbByteAdd(d, s);
dest[i] = d;
}
}
/*
* All of the disjoint composing functions
The four entries in the first column indicate what source contributions
come from each of the four areas of the picture -- areas covered by neither
A nor B, areas covered only by A, areas covered only by B and finally
areas covered by both A and B.
Disjoint Conjoint
Fa Fb Fa Fb
(0,0,0,0) 0 0 0 0
(0,A,0,A) 1 0 1 0
(0,0,B,B) 0 1 0 1
(0,A,B,A) 1 min((1-a)/b,1) 1 max(1-a/b,0)
(0,A,B,B) min((1-b)/a,1) 1 max(1-b/a,0) 1
(0,0,0,A) max(1-(1-b)/a,0) 0 min(1,b/a) 0
(0,0,0,B) 0 max(1-(1-a)/b,0) 0 min(a/b,1)
(0,A,0,0) min(1,(1-b)/a) 0 max(1-b/a,0) 0
(0,0,B,0) 0 min(1,(1-a)/b) 0 max(1-a/b,0)
(0,0,B,A) max(1-(1-b)/a,0) min(1,(1-a)/b) min(1,b/a) max(1-a/b,0)
(0,A,0,B) min(1,(1-b)/a) max(1-(1-a)/b,0) max(1-b/a,0) min(1,a/b)
(0,A,B,0) min(1,(1-b)/a) min(1,(1-a)/b) max(1-b/a,0) max(1-a/b,0)
*/
#define CombineAOut 1
#define CombineAIn 2
#define CombineBOut 4
#define CombineBIn 8
#define CombineClear 0
#define CombineA (CombineAOut|CombineAIn)
#define CombineB (CombineBOut|CombineBIn)
#define CombineAOver (CombineAOut|CombineBOut|CombineAIn)
#define CombineBOver (CombineAOut|CombineBOut|CombineBIn)
#define CombineAAtop (CombineBOut|CombineAIn)
#define CombineBAtop (CombineAOut|CombineBIn)
#define CombineXor (CombineAOut|CombineBOut)
/* portion covered by a but not b */
static INLINE CARD8
fbCombineDisjointOutPart (CARD8 a, CARD8 b)
{
/* min (1, (1-b) / a) */
b = ~b; /* 1 - b */
if (b >= a) /* 1 - b >= a -> (1-b)/a >= 1 */
return 0xff; /* 1 */
return FbIntDiv(b,a); /* (1-b) / a */
}
/* portion covered by both a and b */
static INLINE CARD8
fbCombineDisjointInPart (CARD8 a, CARD8 b)
{
/* max (1-(1-b)/a,0) */
/* = - min ((1-b)/a - 1, 0) */
/* = 1 - min (1, (1-b)/a) */
b = ~b; /* 1 - b */
if (b >= a) /* 1 - b >= a -> (1-b)/a >= 1 */
return 0; /* 1 - 1 */
return ~FbIntDiv(b,a); /* 1 - (1-b) / a */
}
static FASTCALL void
fbCombineDisjointGeneralU (CARD32 *dest, const CARD32 *src, int width, CARD8 combine)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 s = src[i];
CARD32 d = dest[i];
CARD32 m,n,o,p;
CARD16 Fa, Fb, t, u, v;
CARD8 sa = s >> 24;
CARD8 da = d >> 24;
switch (combine & CombineA) {
default:
Fa = 0;
break;
case CombineAOut:
Fa = fbCombineDisjointOutPart (sa, da);
break;
case CombineAIn:
Fa = fbCombineDisjointInPart (sa, da);
break;
case CombineA:
Fa = 0xff;
break;
}
switch (combine & CombineB) {
default:
Fb = 0;
break;
case CombineBOut:
Fb = fbCombineDisjointOutPart (da, sa);
break;
case CombineBIn:
Fb = fbCombineDisjointInPart (da, sa);
break;
case CombineB:
Fb = 0xff;
break;
}
m = FbGen (s,d,0,Fa,Fb,t, u, v);
n = FbGen (s,d,8,Fa,Fb,t, u, v);
o = FbGen (s,d,16,Fa,Fb,t, u, v);
p = FbGen (s,d,24,Fa,Fb,t, u, v);
s = m|n|o|p;
dest[i] = s;
}
}
static FASTCALL void
fbCombineDisjointOverU (CARD32 *dest, const CARD32 *src, int width)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 s = src[i];
CARD16 a = s >> 24;
if (a != 0x00)
{
if (a != 0xff)
{
CARD32 d = dest[i];
a = fbCombineDisjointOutPart (d >> 24, a);
FbByteMulAdd(d, a, s);
s = d;
}
dest[i] = s;
}
}
}
static FASTCALL void
fbCombineDisjointInU (CARD32 *dest, const CARD32 *src, int width)
{
fbCombineDisjointGeneralU (dest, src, width, CombineAIn);
}
static FASTCALL void
fbCombineDisjointInReverseU (CARD32 *dest, const CARD32 *src, int width)
{
fbCombineDisjointGeneralU (dest, src, width, CombineBIn);
}
static FASTCALL void
fbCombineDisjointOutU (CARD32 *dest, const CARD32 *src, int width)
{
fbCombineDisjointGeneralU (dest, src, width, CombineAOut);
}
static FASTCALL void
fbCombineDisjointOutReverseU (CARD32 *dest, const CARD32 *src, int width)
{
fbCombineDisjointGeneralU (dest, src, width, CombineBOut);
}
static FASTCALL void
fbCombineDisjointAtopU (CARD32 *dest, const CARD32 *src, int width)
{
fbCombineDisjointGeneralU (dest, src, width, CombineAAtop);
}
static FASTCALL void
fbCombineDisjointAtopReverseU (CARD32 *dest, const CARD32 *src, int width)
{
fbCombineDisjointGeneralU (dest, src, width, CombineBAtop);
}
static FASTCALL void
fbCombineDisjointXorU (CARD32 *dest, const CARD32 *src, int width)
{
fbCombineDisjointGeneralU (dest, src, width, CombineXor);
}
/* portion covered by a but not b */
static INLINE CARD8
fbCombineConjointOutPart (CARD8 a, CARD8 b)
{
/* max (1-b/a,0) */
/* = 1-min(b/a,1) */
/* min (1, (1-b) / a) */
if (b >= a) /* b >= a -> b/a >= 1 */
return 0x00; /* 0 */
return ~FbIntDiv(b,a); /* 1 - b/a */
}
/* portion covered by both a and b */
static INLINE CARD8
fbCombineConjointInPart (CARD8 a, CARD8 b)
{
/* min (1,b/a) */
if (b >= a) /* b >= a -> b/a >= 1 */
return 0xff; /* 1 */
return FbIntDiv(b,a); /* b/a */
}
static FASTCALL void
fbCombineConjointGeneralU (CARD32 *dest, const CARD32 *src, int width, CARD8 combine)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 s = src[i];
CARD32 d = dest[i];
CARD32 m,n,o,p;
CARD16 Fa, Fb, t, u, v;
CARD8 sa = s >> 24;
CARD8 da = d >> 24;
switch (combine & CombineA) {
default:
Fa = 0;
break;
case CombineAOut:
Fa = fbCombineConjointOutPart (sa, da);
break;
case CombineAIn:
Fa = fbCombineConjointInPart (sa, da);
break;
case CombineA:
Fa = 0xff;
break;
}
switch (combine & CombineB) {
default:
Fb = 0;
break;
case CombineBOut:
Fb = fbCombineConjointOutPart (da, sa);
break;
case CombineBIn:
Fb = fbCombineConjointInPart (da, sa);
break;
case CombineB:
Fb = 0xff;
break;
}
m = FbGen (s,d,0,Fa,Fb,t, u, v);
n = FbGen (s,d,8,Fa,Fb,t, u, v);
o = FbGen (s,d,16,Fa,Fb,t, u, v);
p = FbGen (s,d,24,Fa,Fb,t, u, v);
s = m|n|o|p;
dest[i] = s;
}
}
static FASTCALL void
fbCombineConjointOverU (CARD32 *dest, const CARD32 *src, int width)
{
fbCombineConjointGeneralU (dest, src, width, CombineAOver);
}
static FASTCALL void
fbCombineConjointOverReverseU (CARD32 *dest, const CARD32 *src, int width)
{
fbCombineConjointGeneralU (dest, src, width, CombineBOver);
}
static FASTCALL void
fbCombineConjointInU (CARD32 *dest, const CARD32 *src, int width)
{
fbCombineConjointGeneralU (dest, src, width, CombineAIn);
}
static FASTCALL void
fbCombineConjointInReverseU (CARD32 *dest, const CARD32 *src, int width)
{
fbCombineConjointGeneralU (dest, src, width, CombineBIn);
}
static FASTCALL void
fbCombineConjointOutU (CARD32 *dest, const CARD32 *src, int width)
{
fbCombineConjointGeneralU (dest, src, width, CombineAOut);
}
static FASTCALL void
fbCombineConjointOutReverseU (CARD32 *dest, const CARD32 *src, int width)
{
fbCombineConjointGeneralU (dest, src, width, CombineBOut);
}
static FASTCALL void
fbCombineConjointAtopU (CARD32 *dest, const CARD32 *src, int width)
{
fbCombineConjointGeneralU (dest, src, width, CombineAAtop);
}
static FASTCALL void
fbCombineConjointAtopReverseU (CARD32 *dest, const CARD32 *src, int width)
{
fbCombineConjointGeneralU (dest, src, width, CombineBAtop);
}
static FASTCALL void
fbCombineConjointXorU (CARD32 *dest, const CARD32 *src, int width)
{
fbCombineConjointGeneralU (dest, src, width, CombineXor);
}
static CombineFuncU fbCombineFuncU[] = {
fbCombineClear,
fbCombineSrcU,
0, /* CombineDst */
fbCombineOverU,
fbCombineOverReverseU,
fbCombineInU,
fbCombineInReverseU,
fbCombineOutU,
fbCombineOutReverseU,
fbCombineAtopU,
fbCombineAtopReverseU,
fbCombineXorU,
fbCombineAddU,
fbCombineSaturateU,
0,
0,
fbCombineClear,
fbCombineSrcU,
0, /* CombineDst */
fbCombineDisjointOverU,
fbCombineSaturateU, /* DisjointOverReverse */
fbCombineDisjointInU,
fbCombineDisjointInReverseU,
fbCombineDisjointOutU,
fbCombineDisjointOutReverseU,
fbCombineDisjointAtopU,
fbCombineDisjointAtopReverseU,
fbCombineDisjointXorU,
0,
0,
0,
0,
fbCombineClear,
fbCombineSrcU,
0, /* CombineDst */
fbCombineConjointOverU,
fbCombineConjointOverReverseU,
fbCombineConjointInU,
fbCombineConjointInReverseU,
fbCombineConjointOutU,
fbCombineConjointOutReverseU,
fbCombineConjointAtopU,
fbCombineConjointAtopReverseU,
fbCombineConjointXorU,
};
static FASTCALL void
fbCombineMaskC (CARD32 *src, CARD32 *mask, int width)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 a = mask[i];
CARD32 x;
CARD16 xa;
if (!a)
{
src[i] = 0;
continue;
}
x = src[i];
if (a == 0xffffffff)
{
x = x >> 24;
x |= x << 8;
x |= x << 16;
mask[i] = x;
continue;
}
xa = x >> 24;
FbByteMulC(x, a);
src[i] = x;
FbByteMul(a, xa);
mask[i] = a;
}
}
static FASTCALL void
fbCombineMaskValueC (CARD32 *src, const CARD32 *mask, int width)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 a = mask[i];
CARD32 x;
if (!a)
{
src[i] = 0;
continue;
}
if (a == 0xffffffff)
continue;
x = src[i];
FbByteMulC(x, a);
src[i] = x;
}
}
static FASTCALL void
fbCombineMaskAlphaC (const CARD32 *src, CARD32 *mask, int width)
{
int i;
for (i = 0; i < width; ++i) {
CARD32 a = mask[i];
CARD32 x;
if (!a)
continue;
x = src[i] >> 24;
if (x == 0xff)
continue;
if (a == 0xffffffff)
{
x = x >> 24;
x |= x << 8;
x |= x << 16;
mask[i] = x;
continue;
}
FbByteMul(a, x);
mask[i] = a;
}
}
static FASTCALL void
fbCombineClearC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
memset(dest, 0, width*sizeof(CARD32));
}
static FASTCALL void
fbCombineSrcC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
fbCombineMaskValueC(src, mask, width);
memcpy(dest, src, width*sizeof(CARD32));
}
static FASTCALL void
fbCombineOverC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
int i;
fbCombineMaskC(src, mask, width);
for (i = 0; i < width; ++i) {
CARD32 s = src[i];
CARD32 a = ~mask[i];
if (a != 0xffffffff)
{
if (a)
{
CARD32 d = dest[i];
FbByteMulAddC(d, a, s);
s = d;
}
dest[i] = s;
}
}
}
static FASTCALL void
fbCombineOverReverseC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
int i;
fbCombineMaskValueC(src, mask, width);
for (i = 0; i < width; ++i) {
CARD32 d = dest[i];
CARD32 a = ~d >> 24;
if (a)
{
CARD32 s = src[i];
if (a != 0xff)
{
FbByteMulAdd(s, a, d);
}
dest[i] = s;
}
}
}
static FASTCALL void
fbCombineInC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
int i;
fbCombineMaskValueC(src, mask, width);
for (i = 0; i < width; ++i) {
CARD32 d = dest[i];
CARD16 a = d >> 24;
CARD32 s = 0;
if (a)
{
s = src[i];
if (a != 0xff)
{
FbByteMul(s, a);
}
}
dest[i] = s;
}
}
static FASTCALL void
fbCombineInReverseC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
int i;
fbCombineMaskAlphaC(src, mask, width);
for (i = 0; i < width; ++i) {
CARD32 a = mask[i];
if (a != 0xffffffff)
{
CARD32 d = 0;
if (a)
{
d = dest[i];
FbByteMulC(d, a);
}
dest[i] = d;
}
}
}
static FASTCALL void
fbCombineOutC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
int i;
fbCombineMaskValueC(src, mask, width);
for (i = 0; i < width; ++i) {
CARD32 d = dest[i];
CARD16 a = ~d >> 24;
CARD32 s = 0;
if (a)
{
s = src[i];
if (a != 0xff)
{
FbByteMul(s, a);
}
}
dest[i] = s;
}
}
static FASTCALL void
fbCombineOutReverseC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
int i;
fbCombineMaskAlphaC(src, mask, width);
for (i = 0; i < width; ++i) {
CARD32 a = ~mask[i];
if (a != 0xffffffff)
{
CARD32 d = 0;
if (a)
{
d = dest[i];
FbByteMulC(d, a);
}
dest[i] = d;
}
}
}
static FASTCALL void
fbCombineAtopC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
int i;
fbCombineMaskC(src, mask, width);
for (i = 0; i < width; ++i) {
CARD32 d = dest[i];
CARD32 s = src[i];
CARD32 ad = ~mask[i];
CARD16 as = d >> 24;
FbByteAddMulC(d, ad, s, as);
dest[i] = d;
}
}
static FASTCALL void
fbCombineAtopReverseC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
int i;
fbCombineMaskC(src, mask, width);
for (i = 0; i < width; ++i) {
CARD32 d = dest[i];
CARD32 s = src[i];
CARD32 ad = mask[i];
CARD16 as = ~d >> 24;
FbByteAddMulC(d, ad, s, as);
dest[i] = d;
}
}
static FASTCALL void
fbCombineXorC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
int i;
fbCombineMaskC(src, mask, width);
for (i = 0; i < width; ++i) {
CARD32 d = dest[i];
CARD32 s = src[i];
CARD32 ad = ~mask[i];
CARD16 as = ~d >> 24;
FbByteAddMulC(d, ad, s, as);
dest[i] = d;
}
}
static FASTCALL void
fbCombineAddC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
int i;
fbCombineMaskValueC(src, mask, width);
for (i = 0; i < width; ++i) {
CARD32 s = src[i];
CARD32 d = dest[i];
FbByteAdd(d, s);
dest[i] = d;
}
}
static FASTCALL void
fbCombineSaturateC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
int i;
fbCombineMaskC(src, mask, width);
for (i = 0; i < width; ++i) {
CARD32 s, d;
CARD16 sa, sr, sg, sb, da;
CARD16 t, u, v;
CARD32 m,n,o,p;
d = dest[i];
s = src[i];
sa = (mask[i] >> 24);
sr = (mask[i] >> 16) & 0xff;
sg = (mask[i] >> 8) & 0xff;
sb = (mask[i] ) & 0xff;
da = ~d >> 24;
if (sb <= da)
m = FbAdd(s,d,0,t);
else
m = FbGen (s, d, 0, (da << 8) / sb, 0xff, t, u, v);
if (sg <= da)
n = FbAdd(s,d,8,t);
else
n = FbGen (s, d, 8, (da << 8) / sg, 0xff, t, u, v);
if (sr <= da)
o = FbAdd(s,d,16,t);
else
o = FbGen (s, d, 16, (da << 8) / sr, 0xff, t, u, v);
if (sa <= da)
p = FbAdd(s,d,24,t);
else
p = FbGen (s, d, 24, (da << 8) / sa, 0xff, t, u, v);
dest[i] = m|n|o|p;
}
}
static FASTCALL void
fbCombineDisjointGeneralC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width, CARD8 combine)
{
int i;
fbCombineMaskC(src, mask, width);
for (i = 0; i < width; ++i) {
CARD32 s, d;
CARD32 m,n,o,p;
CARD32 Fa, Fb;
CARD16 t, u, v;
CARD32 sa;
CARD8 da;
s = src[i];
sa = mask[i];
d = dest[i];
da = d >> 24;
switch (combine & CombineA) {
default:
Fa = 0;
break;
case CombineAOut:
m = fbCombineDisjointOutPart ((CARD8) (sa >> 0), da);
n = fbCombineDisjointOutPart ((CARD8) (sa >> 8), da) << 8;
o = fbCombineDisjointOutPart ((CARD8) (sa >> 16), da) << 16;
p = fbCombineDisjointOutPart ((CARD8) (sa >> 24), da) << 24;
Fa = m|n|o|p;
break;
case CombineAIn:
m = fbCombineDisjointInPart ((CARD8) (sa >> 0), da);
n = fbCombineDisjointInPart ((CARD8) (sa >> 8), da) << 8;
o = fbCombineDisjointInPart ((CARD8) (sa >> 16), da) << 16;
p = fbCombineDisjointInPart ((CARD8) (sa >> 24), da) << 24;
Fa = m|n|o|p;
break;
case CombineA:
Fa = 0xffffffff;
break;
}
switch (combine & CombineB) {
default:
Fb = 0;
break;
case CombineBOut:
m = fbCombineDisjointOutPart (da, (CARD8) (sa >> 0));
n = fbCombineDisjointOutPart (da, (CARD8) (sa >> 8)) << 8;
o = fbCombineDisjointOutPart (da, (CARD8) (sa >> 16)) << 16;
p = fbCombineDisjointOutPart (da, (CARD8) (sa >> 24)) << 24;
Fb = m|n|o|p;
break;
case CombineBIn:
m = fbCombineDisjointInPart (da, (CARD8) (sa >> 0));
n = fbCombineDisjointInPart (da, (CARD8) (sa >> 8)) << 8;
o = fbCombineDisjointInPart (da, (CARD8) (sa >> 16)) << 16;
p = fbCombineDisjointInPart (da, (CARD8) (sa >> 24)) << 24;
Fb = m|n|o|p;
break;
case CombineB:
Fb = 0xffffffff;
break;
}
m = FbGen (s,d,0,FbGet8(Fa,0),FbGet8(Fb,0),t, u, v);
n = FbGen (s,d,8,FbGet8(Fa,8),FbGet8(Fb,8),t, u, v);
o = FbGen (s,d,16,FbGet8(Fa,16),FbGet8(Fb,16),t, u, v);
p = FbGen (s,d,24,FbGet8(Fa,24),FbGet8(Fb,24),t, u, v);
s = m|n|o|p;
dest[i] = s;
}
}
static FASTCALL void
fbCombineDisjointOverC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
fbCombineDisjointGeneralC (dest, src, mask, width, CombineAOver);
}
static FASTCALL void
fbCombineDisjointInC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
fbCombineDisjointGeneralC (dest, src, mask, width, CombineAIn);
}
static FASTCALL void
fbCombineDisjointInReverseC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
fbCombineDisjointGeneralC (dest, src, mask, width, CombineBIn);
}
static FASTCALL void
fbCombineDisjointOutC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
fbCombineDisjointGeneralC (dest, src, mask, width, CombineAOut);
}
static FASTCALL void
fbCombineDisjointOutReverseC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
fbCombineDisjointGeneralC (dest, src, mask, width, CombineBOut);
}
static FASTCALL void
fbCombineDisjointAtopC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
fbCombineDisjointGeneralC (dest, src, mask, width, CombineAAtop);
}
static FASTCALL void
fbCombineDisjointAtopReverseC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
fbCombineDisjointGeneralC (dest, src, mask, width, CombineBAtop);
}
static FASTCALL void
fbCombineDisjointXorC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
fbCombineDisjointGeneralC (dest, src, mask, width, CombineXor);
}
static FASTCALL void
fbCombineConjointGeneralC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width, CARD8 combine)
{
int i;
fbCombineMaskC(src, mask, width);
for (i = 0; i < width; ++i) {
CARD32 s, d;
CARD32 m,n,o,p;
CARD32 Fa, Fb;
CARD16 t, u, v;
CARD32 sa;
CARD8 da;
s = src[i];
sa = mask[i];
d = dest[i];
da = d >> 24;
switch (combine & CombineA) {
default:
Fa = 0;
break;
case CombineAOut:
m = fbCombineConjointOutPart ((CARD8) (sa >> 0), da);
n = fbCombineConjointOutPart ((CARD8) (sa >> 8), da) << 8;
o = fbCombineConjointOutPart ((CARD8) (sa >> 16), da) << 16;
p = fbCombineConjointOutPart ((CARD8) (sa >> 24), da) << 24;
Fa = m|n|o|p;
break;
case CombineAIn:
m = fbCombineConjointInPart ((CARD8) (sa >> 0), da);
n = fbCombineConjointInPart ((CARD8) (sa >> 8), da) << 8;
o = fbCombineConjointInPart ((CARD8) (sa >> 16), da) << 16;
p = fbCombineConjointInPart ((CARD8) (sa >> 24), da) << 24;
Fa = m|n|o|p;
break;
case CombineA:
Fa = 0xffffffff;
break;
}
switch (combine & CombineB) {
default:
Fb = 0;
break;
case CombineBOut:
m = fbCombineConjointOutPart (da, (CARD8) (sa >> 0));
n = fbCombineConjointOutPart (da, (CARD8) (sa >> 8)) << 8;
o = fbCombineConjointOutPart (da, (CARD8) (sa >> 16)) << 16;
p = fbCombineConjointOutPart (da, (CARD8) (sa >> 24)) << 24;
Fb = m|n|o|p;
break;
case CombineBIn:
m = fbCombineConjointInPart (da, (CARD8) (sa >> 0));
n = fbCombineConjointInPart (da, (CARD8) (sa >> 8)) << 8;
o = fbCombineConjointInPart (da, (CARD8) (sa >> 16)) << 16;
p = fbCombineConjointInPart (da, (CARD8) (sa >> 24)) << 24;
Fb = m|n|o|p;
break;
case CombineB:
Fb = 0xffffffff;
break;
}
m = FbGen (s,d,0,FbGet8(Fa,0),FbGet8(Fb,0),t, u, v);
n = FbGen (s,d,8,FbGet8(Fa,8),FbGet8(Fb,8),t, u, v);
o = FbGen (s,d,16,FbGet8(Fa,16),FbGet8(Fb,16),t, u, v);
p = FbGen (s,d,24,FbGet8(Fa,24),FbGet8(Fb,24),t, u, v);
s = m|n|o|p;
dest[i] = s;
}
}
static FASTCALL void
fbCombineConjointOverC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
fbCombineConjointGeneralC (dest, src, mask, width, CombineAOver);
}
static FASTCALL void
fbCombineConjointOverReverseC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
fbCombineConjointGeneralC (dest, src, mask, width, CombineBOver);
}
static FASTCALL void
fbCombineConjointInC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
fbCombineConjointGeneralC (dest, src, mask, width, CombineAIn);
}
static FASTCALL void
fbCombineConjointInReverseC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
fbCombineConjointGeneralC (dest, src, mask, width, CombineBIn);
}
static FASTCALL void
fbCombineConjointOutC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
fbCombineConjointGeneralC (dest, src, mask, width, CombineAOut);
}
static FASTCALL void
fbCombineConjointOutReverseC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
fbCombineConjointGeneralC (dest, src, mask, width, CombineBOut);
}
static FASTCALL void
fbCombineConjointAtopC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
fbCombineConjointGeneralC (dest, src, mask, width, CombineAAtop);
}
static FASTCALL void
fbCombineConjointAtopReverseC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
fbCombineConjointGeneralC (dest, src, mask, width, CombineBAtop);
}
static FASTCALL void
fbCombineConjointXorC (CARD32 *dest, CARD32 *src, CARD32 *mask, int width)
{
fbCombineConjointGeneralC (dest, src, mask, width, CombineXor);
}
static CombineFuncC fbCombineFuncC[] = {
fbCombineClearC,
fbCombineSrcC,
0, /* Dest */
fbCombineOverC,
fbCombineOverReverseC,
fbCombineInC,
fbCombineInReverseC,
fbCombineOutC,
fbCombineOutReverseC,
fbCombineAtopC,
fbCombineAtopReverseC,
fbCombineXorC,
fbCombineAddC,
fbCombineSaturateC,
0,
0,
fbCombineClearC, /* 0x10 */
fbCombineSrcC,
0, /* Dest */
fbCombineDisjointOverC,
fbCombineSaturateC, /* DisjointOverReverse */
fbCombineDisjointInC,
fbCombineDisjointInReverseC,
fbCombineDisjointOutC,
fbCombineDisjointOutReverseC,
fbCombineDisjointAtopC,
fbCombineDisjointAtopReverseC,
fbCombineDisjointXorC, /* 0x1b */
0,
0,
0,
0,
fbCombineClearC,
fbCombineSrcC,
0, /* Dest */
fbCombineConjointOverC,
fbCombineConjointOverReverseC,
fbCombineConjointInC,
fbCombineConjointInReverseC,
fbCombineConjointOutC,
fbCombineConjointOutReverseC,
fbCombineConjointAtopC,
fbCombineConjointAtopReverseC,
fbCombineConjointXorC,
};
FbComposeFunctions composeFunctions = {
fbCombineFuncU,
fbCombineFuncC,
fbCombineMaskU
};
static void fbFetchSolid(PicturePtr pict, int x, int y, int width, CARD32 *buffer)
{
FbBits *bits;
FbStride stride;
int bpp;
int xoff, yoff;
CARD32 color;
CARD32 *end;
fetchPixelProc fetch = fetchPixelProcForPicture(pict);
miIndexedPtr indexed = (miIndexedPtr) pict->pFormat->index.devPrivate;
fbGetDrawable (pict->pDrawable, bits, stride, bpp, xoff, yoff);
bits += yoff*stride + (xoff*bpp >> FB_SHIFT);
color = fetch(bits, 0, indexed);
end = buffer + width;
while (buffer < end)
*buffer++ = color;
}
static void fbFetch(PicturePtr pict, int x, int y, int width, CARD32 *buffer)
{
FbBits *bits;
FbStride stride;
int bpp;
int xoff, yoff;
fetchProc fetch = fetchProcForPicture(pict);
miIndexedPtr indexed = (miIndexedPtr) pict->pFormat->index.devPrivate;
fbGetDrawable (pict->pDrawable, bits, stride, bpp, xoff, yoff);
x += xoff;
y += yoff;
bits += y*stride;
fetch(bits, x, width, buffer, indexed);
}
#define MOD(a,b) ((a) < 0 ? ((b) - ((-(a) - 1) % (b))) - 1 : (a) % (b))
static CARD32 gradientPixel(const SourcePictPtr pGradient, xFixed_48_16 pos, unsigned int spread)
{
int ipos = (pos * PICT_GRADIENT_STOPTABLE_SIZE - 1) >> 16;
/* calculate the actual offset. */
if (ipos < 0 || ipos >= PICT_GRADIENT_STOPTABLE_SIZE) {
if (pGradient->type == SourcePictTypeConical || spread == RepeatNormal) {
ipos = ipos % PICT_GRADIENT_STOPTABLE_SIZE;
ipos = ipos < 0 ? PICT_GRADIENT_STOPTABLE_SIZE + ipos : ipos;
} else if (spread == RepeatReflect) {
const int limit = PICT_GRADIENT_STOPTABLE_SIZE * 2 - 1;
ipos = ipos % limit;
ipos = ipos < 0 ? limit + ipos : ipos;
ipos = ipos >= PICT_GRADIENT_STOPTABLE_SIZE ? limit - ipos : ipos;
} else if (spread == RepeatPad) {
if (ipos < 0)
ipos = 0;
else if (ipos >= PICT_GRADIENT_STOPTABLE_SIZE)
ipos = PICT_GRADIENT_STOPTABLE_SIZE-1;
} else { /* RepeatNone */
return 0;
}
}
assert(ipos >= 0);
assert(ipos < PICT_GRADIENT_STOPTABLE_SIZE);
return pGradient->linear.colorTable[ipos];
}
static void fbFetchSourcePict(PicturePtr pict, int x, int y, int width, CARD32 *buffer)
{
SourcePictPtr pGradient = pict->pSourcePict;
CARD32 *end = buffer + width;
if (pGradient->type == SourcePictTypeSolidFill) {
register CARD32 color = pGradient->solidFill.color;
while (buffer < end) {
*buffer++ = color;
}
} else if (pGradient->type == SourcePictTypeLinear) {
PictVector v, unit;
xFixed_32_32 l;
xFixed_48_16 dx, dy, a, b, off;
v.vector[0] = IntToxFixed(x);
v.vector[1] = IntToxFixed(y);
v.vector[2] = xFixed1;
if (pict->transform) {
if (!PictureTransformPoint3d (pict->transform, &v))
return;
unit.vector[0] = pict->transform->matrix[0][0];
unit.vector[1] = pict->transform->matrix[1][0];
unit.vector[2] = pict->transform->matrix[2][0];
} else {
unit.vector[0] = xFixed1;
unit.vector[1] = 0;
unit.vector[2] = 0;
}
dx = pGradient->linear.p2.x - pGradient->linear.p1.x;
dy = pGradient->linear.p2.y - pGradient->linear.p1.y;
l = dx*dx + dy*dy;
if (l != 0) {
a = (dx << 32) / l;
b = (dy << 32) / l;
off = (-a*pGradient->linear.p1.x - b*pGradient->linear.p1.y)>>16;
}
if (l == 0 || (unit.vector[2] == 0 && v.vector[2] == xFixed1)) {
xFixed_48_16 inc, t;
/* affine transformation only */
if (l == 0) {
t = 0;
inc = 0;
} else {
t = ((a*v.vector[0] + b*v.vector[1]) >> 16) + off;
inc = (a * unit.vector[0] + b * unit.vector[1]) >> 16;
}
while (buffer < end) {
*buffer++ = gradientPixel(pGradient, t, pict->repeat);
t += inc;
}
} else {
/* projective transformation */
while (buffer < end) {
xFixed_48_16 t;
if (v.vector[2] == 0) {
t = 0;
} else {
xFixed_48_16 x, y;
x = ((xFixed_48_16)v.vector[0] << 16) / v.vector[2];
y = ((xFixed_48_16)v.vector[1] << 16) / v.vector[2];
t = ((a*x + b*y) >> 16) + off;
}
*buffer++ = gradientPixel(pGradient, t, pict->repeat);
v.vector[0] += unit.vector[0];
v.vector[1] += unit.vector[1];
v.vector[2] += unit.vector[2];
}
}
} else {
/* radial or conical */
Bool projective = FALSE;
double cx = 1.;
double cy = 0.;
double cz = 0.;
double rx = x;
double ry = y;
double rz = 1.;
if (pict->transform) {
PictVector v;
v.vector[0] = IntToxFixed(x);
v.vector[1] = IntToxFixed(y);
v.vector[2] = xFixed1;
if (!PictureTransformPoint3d (pict->transform, &v))
return;
cx = pict->transform->matrix[0][0]/65536.;
cy = pict->transform->matrix[1][0]/65536.;
cz = pict->transform->matrix[2][0]/65536.;
rx = v.vector[0]/65536.;
ry = v.vector[1]/65536.;
rz = v.vector[2]/65536.;
projective = pict->transform->matrix[2][0] != 0 || v.vector[2] != xFixed1;
}
if (pGradient->type == SourcePictTypeRadial) {
if (!projective) {
rx -= pGradient->radial.fx;
ry -= pGradient->radial.fy;
while (buffer < end) {
double b = 2*(rx*pGradient->radial.dx + ry*pGradient->radial.dy);
double c = -(rx*rx + ry*ry);
double det = (b * b) - (4 * pGradient->radial.a * c);
double s = (-b + sqrt(det))/(2. * pGradient->radial.a);
*buffer = gradientPixel(pGradient,
(xFixed_48_16)((s*pGradient->radial.m + pGradient->radial.b)*65536),
pict->repeat);
++buffer;
rx += cx;
ry += cy;
}
} else {
while (buffer < end) {
double x, y;
double b, c, det, s;
if (rz != 0) {
x = rx/rz;
y = ry/rz;
} else {
x = y = 0.;
}
x -= pGradient->radial.fx;
y -= pGradient->radial.fy;
b = 2*(x*pGradient->radial.dx + y*pGradient->radial.dy);
c = -(x*x + y*y);
det = (b * b) - (4 * pGradient->radial.a * c);
s = (-b + sqrt(det))/(2. * pGradient->radial.a);
*buffer = gradientPixel(pGradient,
(xFixed_48_16)((s*pGradient->radial.m + pGradient->radial.b)*65536),
pict->repeat);
++buffer;
rx += cx;
ry += cy;
rz += cz;
}
}
} else /* SourcePictTypeConical */ {
double a = pGradient->conical.angle/(180.*65536);
if (!projective) {
rx -= pGradient->conical.center.x/65536.;
ry -= pGradient->conical.center.y/65536.;
while (buffer < end) {
double angle = atan2(ry, rx) + a;
*buffer = gradientPixel(pGradient, (xFixed_48_16) (angle * (65536. / (2*M_PI))),
pict->repeat);
++buffer;
rx += cx;
ry += cy;
}
} else {
while (buffer < end) {
double x, y, angle;
if (rz != 0) {
x = rx/rz;
y = ry/rz;
} else {
x = y = 0.;
}
x -= pGradient->conical.center.x/65536.;
y -= pGradient->conical.center.y/65536.;
angle = atan2(y, x) + a;
*buffer = gradientPixel(pGradient, (xFixed_48_16) (angle * (65536. / (2*M_PI))),
pict->repeat);
++buffer;
rx += cx;
ry += cy;
rz += cz;
}
}
}
}
}
static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32 *buffer)
{
FbBits *bits;
FbStride stride;
int bpp;
int xoff, yoff;
fetchPixelProc fetch;
PictVector v;
PictVector unit;
int i;
BoxRec box;
miIndexedPtr indexed = (miIndexedPtr) pict->pFormat->index.devPrivate;
fetch = fetchPixelProcForPicture(pict);
fbGetDrawable(pict->pDrawable, bits, stride, bpp, xoff, yoff);
x += xoff;
y += yoff;
v.vector[0] = IntToxFixed(x);
v.vector[1] = IntToxFixed(y);
v.vector[2] = xFixed1;
/* when using convolution filters one might get here without a transform */
if (pict->transform) {
if (!PictureTransformPoint3d (pict->transform, &v))
return;
unit.vector[0] = pict->transform->matrix[0][0];
unit.vector[1] = pict->transform->matrix[1][0];
unit.vector[2] = pict->transform->matrix[2][0];
} else {
unit.vector[0] = xFixed1;
unit.vector[1] = 0;
unit.vector[2] = 0;
}
if (pict->filter == PictFilterNearest)
{
if (pict->repeat == RepeatNormal) {
if (REGION_NUM_RECTS(pict->pCompositeClip) == 1) {
box = pict->pCompositeClip->extents;
for (i = 0; i < width; ++i) {
if (!v.vector[2]) {
buffer[i] = 0;
} else {
y = MOD((v.vector[1]/v.vector[2]), pict->pDrawable->height);
x = MOD((v.vector[0]/v.vector[2]), pict->pDrawable->width);
buffer[i] = fetch(bits + (y + pict->pDrawable->y)*stride, x + pict->pDrawable->x, indexed);
}
v.vector[0] += unit.vector[0];
v.vector[1] += unit.vector[1];
v.vector[2] += unit.vector[2];
}
} else {
for (i = 0; i < width; ++i) {
if (!v.vector[2]) {
buffer[i] = 0;
} else {
y = MOD((v.vector[1]/v.vector[2]), pict->pDrawable->height);
x = MOD((v.vector[0]/v.vector[2]), pict->pDrawable->width);
if (POINT_IN_REGION (0, pict->pCompositeClip, x, y, &box))
buffer[i] = fetch(bits + (y + pict->pDrawable->y)*stride, x + pict->pDrawable->x, indexed);
else
buffer[i] = 0;
}
v.vector[0] += unit.vector[0];
v.vector[1] += unit.vector[1];
v.vector[2] += unit.vector[2];
}
}
} else {
if (REGION_NUM_RECTS(pict->pCompositeClip) == 1) {
box = pict->pCompositeClip->extents;
for (i = 0; i < width; ++i) {
if (!v.vector[2]) {
buffer[i] = 0;
} else {
y = (v.vector[1]/v.vector[2]);
x = (v.vector[0]/v.vector[2]);
buffer[i] = ((x < box.x1) | (x >= box.x2) | (y < box.y1) | (y >= box.y2)) ?
0 : fetch(bits + (y + pict->pDrawable->y)*stride, x + pict->pDrawable->x, indexed);
}
v.vector[0] += unit.vector[0];
v.vector[1] += unit.vector[1];
v.vector[2] += unit.vector[2];
}
} else {
for (i = 0; i < width; ++i) {
if (!v.vector[2]) {
buffer[i] = 0;
} else {
y = (v.vector[1]/v.vector[2]);
x = (v.vector[0]/v.vector[2]);
if (POINT_IN_REGION (0, pict->pCompositeClip, x, y, &box))
buffer[i] = fetch(bits + (y + pict->pDrawable->y)*stride, x + pict->pDrawable->x, indexed);
else
buffer[i] = 0;
}
v.vector[0] += unit.vector[0];
v.vector[1] += unit.vector[1];
v.vector[2] += unit.vector[2];
}
}
}
} else if (pict->filter == PictFilterBilinear) {
if (pict->repeat == RepeatNormal) {
if (REGION_NUM_RECTS(pict->pCompositeClip) == 1) {
box = pict->pCompositeClip->extents;
for (i = 0; i < width; ++i) {
if (!v.vector[2]) {
buffer[i] = 0;
} else {
int x1, x2, y1, y2, distx, idistx, disty, idisty;
FbBits *b;
CARD32 tl, tr, bl, br;
xFixed_48_16 div;
div = ((xFixed_48_16)v.vector[0] << 16)/v.vector[2];
x1 = div >> 16;
distx = ((xFixed)div >> 8) & 0xff;
x2 = x1 + 1;
div = ((xFixed_48_16)v.vector[1] << 16)/v.vector[2];
y1 = div >> 16;
y2 = y1 + 1;
disty = ((xFixed)div >> 8) & 0xff;
idistx = 256 - distx;
idisty = 256 - disty;
x1 = MOD (x1, pict->pDrawable->width);
x2 = MOD (x2, pict->pDrawable->width);
y1 = MOD (y1, pict->pDrawable->height);
y2 = MOD (y2, pict->pDrawable->height);
b = bits + (y1 + pict->pDrawable->y)*stride;
tl = fetch(b, x1 + pict->pDrawable->x, indexed);
tr = fetch(b, x2 + pict->pDrawable->x, indexed);
b = bits + (y2 + pict->pDrawable->y)*stride;
bl = fetch(b, x1 + pict->pDrawable->x, indexed);
br = fetch(b, x2 + pict->pDrawable->x, indexed);
FbByteAddMul_256(tl, idistx, tr, distx);
FbByteAddMul_256(bl, idistx, br, distx);
FbByteAddMul_256(tl, idisty, bl, disty);
buffer[i] = tl;
}
v.vector[0] += unit.vector[0];
v.vector[1] += unit.vector[1];
v.vector[2] += unit.vector[2];
}
} else {
for (i = 0; i < width; ++i) {
if (!v.vector[2]) {
buffer[i] = 0;
} else {
int x1, x2, y1, y2, distx, idistx, disty, idisty;
FbBits *b;
CARD32 tl, tr, bl, br;
xFixed_48_16 div;
div = ((xFixed_48_16)v.vector[0] << 16)/v.vector[2];
x1 = div >> 16;
distx = ((xFixed)div >> 8) & 0xff;
x2 = x1 + 1;
div = ((xFixed_48_16)v.vector[1] << 16)/v.vector[2];
y1 = div >> 16;
y2 = y1 + 1;
disty = ((xFixed)div >> 8) & 0xff;
idistx = 256 - distx;
idisty = 256 - disty;
x1 = MOD (x1, pict->pDrawable->width);
x2 = MOD (x2, pict->pDrawable->width);
y1 = MOD (y1, pict->pDrawable->height);
y2 = MOD (y2, pict->pDrawable->height);
b = bits + (y1 + pict->pDrawable->y)*stride;
tl = POINT_IN_REGION(0, pict->pCompositeClip, x1, y1, &box)
? fetch(b, x1 + pict->pDrawable->x, indexed) : 0;
tr = POINT_IN_REGION(0, pict->pCompositeClip, x2, y1, &box)
? fetch(b, x2 + pict->pDrawable->x, indexed) : 0;
b = bits + (y2 + pict->pDrawable->y)*stride;
bl = POINT_IN_REGION(0, pict->pCompositeClip, x1, y2, &box)
? fetch(b, x1 + pict->pDrawable->x, indexed) : 0;
br = POINT_IN_REGION(0, pict->pCompositeClip, x2, y2, &box)
? fetch(b, x2 + pict->pDrawable->x, indexed) : 0;
FbByteAddMul_256(tl, idistx, tr, distx);
FbByteAddMul_256(bl, idistx, br, distx);
FbByteAddMul_256(tl, idisty, bl, disty);
buffer[i] = tl;
}
v.vector[0] += unit.vector[0];
v.vector[1] += unit.vector[1];
v.vector[2] += unit.vector[2];
}
}
} else {
if (REGION_NUM_RECTS(pict->pCompositeClip) == 1) {
box = pict->pCompositeClip->extents;
for (i = 0; i < width; ++i) {
if (!v.vector[2]) {
buffer[i] = 0;
} else {
int x1, x2, y1, y2, distx, idistx, disty, idisty, x_off;
FbBits *b;
CARD32 tl, tr, bl, br;
Bool x1_out, x2_out, y1_out, y2_out;
xFixed_48_16 div;
div = ((xFixed_48_16)v.vector[0] << 16)/v.vector[2];
x1 = div >> 16;
distx = ((xFixed)div >> 8) & 0xff;
x2 = x1 + 1;
div = ((xFixed_48_16)v.vector[1] << 16)/v.vector[2];
y1 = div >> 16;
y2 = y1 + 1;
disty = ((xFixed)div >> 8) & 0xff;
idistx = 256 - distx;
idisty = 256 - disty;
b = bits + (y1 + pict->pDrawable->y)*stride;
x_off = x1 + pict->pDrawable->x;
x1_out = (x1 < box.x1) | (x1 >= box.x2);
x2_out = (x2 < box.x1) | (x2 >= box.x2);
y1_out = (y1 < box.y1) | (y1 >= box.y2);
y2_out = (y2 < box.y1) | (y2 >= box.y2);
tl = x1_out|y1_out ? 0 : fetch(b, x_off, indexed);
tr = x2_out|y1_out ? 0 : fetch(b, x_off + 1, indexed);
b += stride;
bl = x1_out|y2_out ? 0 : fetch(b, x_off, indexed);
br = x2_out|y2_out ? 0 : fetch(b, x_off + 1, indexed);
FbByteAddMul_256(tl, idistx, tr, distx);
FbByteAddMul_256(bl, idistx, br, distx);
FbByteAddMul_256(tl, idisty, bl, disty);
buffer[i] = tl;
}
v.vector[0] += unit.vector[0];
v.vector[1] += unit.vector[1];
v.vector[2] += unit.vector[2];
}
} else {
for (i = 0; i < width; ++i) {
if (!v.vector[2]) {
buffer[i] = 0;
} else {
int x1, x2, y1, y2, distx, idistx, disty, idisty, x_off;
FbBits *b;
CARD32 tl, tr, bl, br;
xFixed_48_16 div;
div = ((xFixed_48_16)v.vector[0] << 16)/v.vector[2];
x1 = div >> 16;
distx = ((xFixed)div >> 8) & 0xff;
x2 = x1 + 1;
div = ((xFixed_48_16)v.vector[1] << 16)/v.vector[2];
y1 = div >> 16;
y2 = y1 + 1;
disty = ((xFixed)div >> 8) & 0xff;
idistx = 256 - distx;
idisty = 256 - disty;
b = bits + (y1 + pict->pDrawable->y)*stride;
x_off = x1 + pict->pDrawable->x;
tl = POINT_IN_REGION(0, pict->pCompositeClip, x1, y1, &box)
? fetch(b, x_off, indexed) : 0;
tr = POINT_IN_REGION(0, pict->pCompositeClip, x2, y1, &box)
? fetch(b, x_off + 1, indexed) : 0;
b += stride;
bl = POINT_IN_REGION(0, pict->pCompositeClip, x1, y2, &box)
? fetch(b, x_off, indexed) : 0;
br = POINT_IN_REGION(0, pict->pCompositeClip, x2, y2, &box)
? fetch(b, x_off + 1, indexed) : 0;
FbByteAddMul_256(tl, idistx, tr, distx);
FbByteAddMul_256(bl, idistx, br, distx);
FbByteAddMul_256(tl, idisty, bl, disty);
buffer[i] = tl;
}
v.vector[0] += unit.vector[0];
v.vector[1] += unit.vector[1];
v.vector[2] += unit.vector[2];
}
}
}
} else if (pict->filter == PictFilterConvolution) {
xFixed *params = pict->filter_params;
INT32 cwidth = xFixedToInt(params[0]);
INT32 cheight = xFixedToInt(params[1]);
int xoff = params[0] >> 1;
int yoff = params[1] >> 1;
params += 2;
for (i = 0; i < width; ++i) {
if (!v.vector[2]) {
buffer[i] = 0;
} else {
int x1, x2, y1, y2, x, y;
INT32 srtot, sgtot, sbtot, satot;
xFixed *p = params;
xFixed_48_16 tmp;
tmp = ((xFixed_48_16)v.vector[0] << 16)/v.vector[2] - xoff;
x1 = xFixedToInt(tmp);
x2 = x1 + cwidth;
tmp = ((xFixed_48_16)v.vector[1] << 16)/v.vector[2] - yoff;
y1 = xFixedToInt(tmp);
y2 = y1 + cheight;
srtot = sgtot = sbtot = satot = 0;
for (y = y1; y < y2; y++) {
int ty = (pict->repeat == RepeatNormal) ? MOD (y, pict->pDrawable->height) : y;
for (x = x1; x < x2; x++) {
if (*p) {
int tx = (pict->repeat == RepeatNormal) ? MOD (x, pict->pDrawable->width) : x;
if (POINT_IN_REGION (0, pict->pCompositeClip, tx, ty, &box)) {
FbBits *b = bits + (ty + pict->pDrawable->y)*stride;
CARD32 c = fetch(b, tx + pict->pDrawable->x, indexed);
srtot += Red(c) * *p;
sgtot += Green(c) * *p;
sbtot += Blue(c) * *p;
satot += Alpha(c) * *p;
}
}
p++;
}
}
if (satot < 0) satot = 0; else if (satot > 0xff) satot = 0xff;
if (srtot < 0) srtot = 0; else if (srtot > 0xff) srtot = 0xff;
if (sgtot < 0) sgtot = 0; else if (sgtot > 0xff) sgtot = 0xff;
if (sbtot < 0) sbtot = 0; else if (sbtot > 0xff) sbtot = 0xff;
buffer[i] = ((satot << 24) |
(srtot << 16) |
(sgtot << 8) |
(sbtot ));
}
v.vector[0] += unit.vector[0];
v.vector[1] += unit.vector[1];
v.vector[2] += unit.vector[2];
}
}
}
static void fbFetchExternalAlpha(PicturePtr pict, int x, int y, int width, CARD32 *buffer)
{
int i;
CARD32 _alpha_buffer[SCANLINE_BUFFER_LENGTH];
CARD32 *alpha_buffer = _alpha_buffer;
if (!pict->alphaMap) {
fbFetchTransformed(pict, x, y, width, buffer);
return;
}
if (width > SCANLINE_BUFFER_LENGTH)
alpha_buffer = (CARD32 *) malloc(width*sizeof(CARD32));
fbFetchTransformed(pict, x, y, width, buffer);
fbFetchTransformed(pict->alphaMap, x - pict->alphaOrigin.x, y - pict->alphaOrigin.y, width, alpha_buffer);
for (i = 0; i < width; ++i) {
int a = alpha_buffer[i]>>24;
buffer[i] = (a << 24)
| (div_255(Red(buffer[i]) * a) << 16)
| (div_255(Green(buffer[i]) * a) << 8)
| (div_255(Blue(buffer[i]) * a));
}
if (alpha_buffer != _alpha_buffer)
free(alpha_buffer);
}
static void fbStore(PicturePtr pict, int x, int y, int width, CARD32 *buffer)
{
FbBits *bits;
FbStride stride;
int bpp;
int xoff, yoff;
storeProc store = storeProcForPicture(pict);
miIndexedPtr indexed = (miIndexedPtr) pict->pFormat->index.devPrivate;
fbGetDrawable (pict->pDrawable, bits, stride, bpp, xoff, yoff);
x += xoff;
y += yoff;
bits += y*stride;
store(bits, buffer, x, width, indexed);
}
static void fbStoreExternalAlpha(PicturePtr pict, int x, int y, int width, CARD32 *buffer)
{
FbBits *bits, *alpha_bits;
FbStride stride, astride;
int bpp, abpp;
int xoff, yoff;
int ax, ay;
storeProc store;
storeProc astore;
miIndexedPtr indexed = (miIndexedPtr) pict->pFormat->index.devPrivate;
miIndexedPtr aindexed;
if (!pict->alphaMap) {
fbStore(pict, x, y, width, buffer);
return;
}
store = storeProcForPicture(pict);
astore = storeProcForPicture(pict->alphaMap);
aindexed = (miIndexedPtr) pict->alphaMap->pFormat->index.devPrivate;
ax = x;
ay = y;
fbGetDrawable (pict->pDrawable, bits, stride, bpp, xoff, yoff);
x += xoff;
y += yoff;
fbGetDrawable (pict->alphaMap->pDrawable, alpha_bits, astride, abpp, xoff, yoff);
ax += xoff;
ay += yoff;
bits += y*stride;
alpha_bits += (ay - pict->alphaOrigin.y)*astride;
store(bits, buffer, x, width, indexed);
astore(alpha_bits, buffer, ax - pict->alphaOrigin.x, width, aindexed);
}
typedef void (*scanStoreProc)(PicturePtr , int , int , int , CARD32 *);
typedef void (*scanFetchProc)(PicturePtr , int , int , int , CARD32 *);
static void
fbCompositeRect (const FbComposeData *data, CARD32 *scanline_buffer)
{
CARD32 *src_buffer = scanline_buffer;
CARD32 *dest_buffer = src_buffer + data->width;
int i;
scanStoreProc store;
scanFetchProc fetchSrc = 0, fetchMask = 0, fetchDest = 0;
if (data->op == PictOpClear)
fetchSrc = 0;
else if (!data->src->pDrawable) {
if (data->src->pSourcePict)
fetchSrc = fbFetchSourcePict;
} else if (data->src->alphaMap)
fetchSrc = fbFetchExternalAlpha;
else if (data->src->repeat == RepeatNormal &&
data->src->pDrawable->width == 1 && data->src->pDrawable->height == 1)
fetchSrc = fbFetchSolid;
else if (!data->src->transform && data->src->filter != PictFilterConvolution)
fetchSrc = fbFetch;
else
fetchSrc = fbFetchTransformed;
if (data->mask && data->op != PictOpClear) {
if (!data->mask->pDrawable) {
if (data->mask->pSourcePict)
fetchMask = fbFetchSourcePict;
} else if (data->mask->alphaMap)
fetchMask = fbFetchExternalAlpha;
else if (data->mask->repeat == RepeatNormal
&& data->mask->pDrawable->width == 1 && data->mask->pDrawable->height == 1)
fetchMask = fbFetchSolid;
else if (!data->mask->transform && data->mask->filter != PictFilterConvolution)
fetchMask = fbFetch;
else
fetchMask = fbFetchTransformed;
} else {
fetchMask = 0;
}
if (data->dest->alphaMap) {
fetchDest = fbFetchExternalAlpha;
store = fbStoreExternalAlpha;
} else {
fetchDest = fbFetch;
store = fbStore;
}
if (data->op == PictOpClear || data->op == PictOpSrc)
fetchDest = 0;
if (fetchSrc && fetchMask && data->mask && data->mask->componentAlpha && PICT_FORMAT_RGB(data->mask->format)) {
CARD32 *mask_buffer = dest_buffer + data->width;
CombineFuncC compose = composeFunctions.combineC[data->op];
if (!compose)
return;
for (i = 0; i < data->height; ++i)
{
/* fill first half of scanline with source */
fetchSrc(data->src, data->xSrc, data->ySrc + i, data->width, src_buffer);
fetchMask(data->mask, data->xMask, data->yMask + i, data->width, mask_buffer);
/* fill dest into second half of scanline */
if (fetchDest)
fetchDest(data->dest, data->xDest, data->yDest + i, data->width, dest_buffer);
/* blend */
compose(dest_buffer, src_buffer, mask_buffer, data->width);
/* write back */
store(data->dest, data->xDest, data->yDest + i, data->width, dest_buffer);
}
} else {
CombineFuncU compose = composeFunctions.combineU[data->op];
if (!compose)
return;
if (fetchSrc == fbFetchSolid && (!fetchMask || fetchMask == fbFetchSolid)) {
fetchSrc(data->src, data->xSrc, data->ySrc, data->width, src_buffer);
if (fetchMask) {
fetchMask(data->mask, data->xMask, data->yMask, data->width, dest_buffer);
composeFunctions.combineMaskU(src_buffer, dest_buffer, data->width);
}
fetchSrc = 0;
fetchMask = 0;
}
for (i = 0; i < data->height; ++i)
{
/* fill first half of scanline with source */
if (fetchSrc) {
fetchSrc(data->src, data->xSrc, data->ySrc + i, data->width, src_buffer);
/* add in mask */
if (fetchMask) {
fetchMask(data->mask, data->xMask, data->yMask + i, data->width, dest_buffer);
composeFunctions.combineMaskU(src_buffer, dest_buffer, data->width);
}
}
/* fill dest into second half of scanline */
if (fetchDest)
fetchDest(data->dest, data->xDest, data->yDest + i, data->width, dest_buffer);
/* blend */
compose(dest_buffer, src_buffer, data->width);
/* write back */
store(data->dest, data->xDest, data->yDest + i, data->width, dest_buffer);
}
}
}
void
fbCompositeGeneral (CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height)
{
RegionRec region;
int n;
BoxPtr pbox;
Bool srcRepeat = FALSE;
Bool maskRepeat = FALSE;
int w, h;
CARD32 _scanline_buffer[SCANLINE_BUFFER_LENGTH*3];
CARD32 *scanline_buffer = _scanline_buffer;
FbComposeData compose_data;
if (pSrc->pDrawable)
srcRepeat = pSrc->repeat == RepeatNormal && !pSrc->transform
&& (pSrc->pDrawable->width != 1 || pSrc->pDrawable->height != 1);
if (pMask && pMask->pDrawable)
maskRepeat = pMask->repeat == RepeatNormal && !pMask->transform
&& (pMask->pDrawable->width != 1 || pMask->pDrawable->height != 1);
if (op == PictOpOver && !pMask && !pSrc->transform && !PICT_FORMAT_A(pSrc->format) && !pSrc->alphaMap)
op = PictOpSrc;
if (!miComputeCompositeRegion (&region,
pSrc,
pMask,
pDst,
xSrc,
ySrc,
xMask,
yMask,
xDst,
yDst,
width,
height))
return;
compose_data.op = op;
compose_data.src = pSrc;
compose_data.mask = pMask;
compose_data.dest = pDst;
if (width > SCANLINE_BUFFER_LENGTH)
scanline_buffer = (CARD32 *) malloc(width * 3 * sizeof(CARD32));
n = REGION_NUM_RECTS (&region);
pbox = REGION_RECTS (&region);
while (n--)
{
h = pbox->y2 - pbox->y1;
compose_data.ySrc = pbox->y1 - yDst + ySrc;
compose_data.yMask = pbox->y1 - yDst + yMask;
compose_data.yDest = pbox->y1;
while (h)
{
compose_data.height = h;
w = pbox->x2 - pbox->x1;
compose_data.xSrc = pbox->x1 - xDst + xSrc;
compose_data.xMask = pbox->x1 - xDst + xMask;
compose_data.xDest = pbox->x1;
if (maskRepeat)
{
compose_data.yMask = mod (compose_data.yMask, pMask->pDrawable->height);
if (compose_data.height > pMask->pDrawable->height - compose_data.yMask)
compose_data.height = pMask->pDrawable->height - compose_data.yMask;
}
if (srcRepeat)
{
compose_data.ySrc = mod (compose_data.ySrc, pSrc->pDrawable->height);
if (compose_data.height > pSrc->pDrawable->height - compose_data.ySrc)
compose_data.height = pSrc->pDrawable->height - compose_data.ySrc;
}
while (w)
{
compose_data.width = w;
if (maskRepeat)
{
compose_data.xMask = mod (compose_data.xMask, pMask->pDrawable->width);
if (compose_data.width > pMask->pDrawable->width - compose_data.xMask)
compose_data.width = pMask->pDrawable->width - compose_data.xMask;
}
if (srcRepeat)
{
compose_data.xSrc = mod (compose_data.xSrc, pSrc->pDrawable->width);
if (compose_data.width > pSrc->pDrawable->width - compose_data.xSrc)
compose_data.width = pSrc->pDrawable->width - compose_data.xSrc;
}
fbCompositeRect(&compose_data, scanline_buffer);
w -= compose_data.width;
compose_data.xSrc += compose_data.width;
compose_data.xMask += compose_data.width;
compose_data.xDest += compose_data.width;
}
h -= compose_data.height;
compose_data.ySrc += compose_data.height;
compose_data.yMask += compose_data.height;
compose_data.yDest += compose_data.height;
}
pbox++;
}
REGION_UNINIT (pDst->pDrawable->pScreen, &region);
if (scanline_buffer != _scanline_buffer)
free(scanline_buffer);
}
#endif
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