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implement non-asm versions of the bit plane mungers

This commit is contained in:
Bill Currie 2002-09-11 21:33:58 +00:00
parent c784b4375a
commit 2f98af35b8
1 changed files with 40 additions and 9 deletions
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49
tools/qfmodelgen/source/lbmlib.c
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@ -113,15 +113,27 @@ byte bitplanes[9][BPLANESIZE]; // max size 1024 by 9 bit planes
=
= MungeBitPlanes8
=
= This destroys the bit plane data!
= Asm version destroys the bit plane data!
=
=================
*/
void MungeBitPlanes8 (int width, byte *dest)
{
*dest=width; // shut up the compiler warning
Error ("MungeBitPlanes8 not rewritten!");
int i, ind = 0;
while (width--) {
for (i = 0; i < 8; i++) {
*dest++ = (((bitplanes[7][ind] << i) & 128) >> 0)
| (((bitplanes[6][ind] << i) & 128) >> 1)
| (((bitplanes[5][ind] << i) & 128) >> 2)
| (((bitplanes[4][ind] << i) & 128) >> 3)
| (((bitplanes[3][ind] << i) & 128) >> 4)
| (((bitplanes[2][ind] << i) & 128) >> 5)
| (((bitplanes[1][ind] << i) & 128) >> 6)
| (((bitplanes[0][ind] << i) & 128) >> 7);
}
ind++;
}
#if 0
asm les di,[dest]
asm mov si,-1
@ -160,8 +172,16 @@ done:
void MungeBitPlanes4 (int width, byte *dest)
{
*dest=width; // shut up the compiler warning
Error ("MungeBitPlanes4 not rewritten!");
int i, ind = 0;
while (width--) {
for (i = 0; i < 8; i++) {
*dest++ = (((bitplanes[3][ind] << i) & 128) >> 4)
| (((bitplanes[2][ind] << i) & 128) >> 5)
| (((bitplanes[1][ind] << i) & 128) >> 6)
| (((bitplanes[0][ind] << i) & 128) >> 7);
}
ind++;
}
#if 0
asm les di,[dest]
@ -194,8 +214,14 @@ done:
void MungeBitPlanes2 (int width, byte *dest)
{
*dest=width; // shut up the compiler warning
Error ("MungeBitPlanes2 not rewritten!");
int i, ind = 0;
while (width--) {
for (i = 0; i < 8; i++) {
*dest++ = (((bitplanes[1][ind] << i) & 128) >> 6)
| (((bitplanes[0][ind] << i) & 128) >> 7);
}
ind++;
}
#if 0
asm les di,[dest]
asm mov si,-1
@ -223,8 +249,13 @@ done:
void MungeBitPlanes1 (int width, byte *dest)
{
*dest=width; // shut up the compiler warning
Error ("MungeBitPlanes1 not rewritten!");
int i, ind = 0;
while (width--) {
for (i = 0; i < 8; i++) {
*dest++ = (((bitplanes[0][ind] << i) & 128) >> 7);
}
ind++;
}
#if 0
asm les di,[dest]
asm mov si,-1