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packing of GLushort packed types was broken

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This commit is contained in:
Brian Paul 2000-09-12 21:10:25 +00:00
parent 8d4bd87c1a
commit 881ec9ee67
1 changed files with 77 additions and 5 deletions
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82
src/mesa/main/image.c
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@ -1,4 +1,4 @@
/* $Id: image.c,v 1.39 2000/08/31 15:24:07 brianp Exp $ */
/* $Id: image.c,v 1.40 2000/09/12 21:10:25 brianp Exp $ */
/*
* Mesa 3-D graphics library
@ -1305,7 +1305,7 @@ _mesa_pack_float_rgba_span( GLcontext *ctx,
}
break;
case GL_UNSIGNED_SHORT_4_4_4_4:
if (dstFormat == GL_RGB) {
if (dstFormat == GL_RGBA) {
GLushort *dst = (GLushort *) dstAddr;
for (i=0;i<n;i++) {
dst[i] = (((GLint) (rgba[i][RCOMP] * 15.0F)) << 12)
@ -1314,9 +1314,27 @@ _mesa_pack_float_rgba_span( GLcontext *ctx,
| (((GLint) (rgba[i][ACOMP] * 15.0F)) );
}
}
else if (dstFormat == GL_BGRA) {
GLushort *dst = (GLushort *) dstAddr;
for (i=0;i<n;i++) {
dst[i] = (((GLint) (rgba[i][BCOMP] * 15.0F)) << 12)
| (((GLint) (rgba[i][GCOMP] * 15.0F)) << 8)
| (((GLint) (rgba[i][RCOMP] * 15.0F)) << 4)
| (((GLint) (rgba[i][ACOMP] * 15.0F)) );
}
}
else if (dstFormat == GL_ABGR_EXT) {
GLushort *dst = (GLushort *) dstAddr;
for (i=0;i<n;i++) {
dst[i] = (((GLint) (rgba[i][ACOMP] * 15.0F)) << 4)
| (((GLint) (rgba[i][BCOMP] * 15.0F)) << 8)
| (((GLint) (rgba[i][GCOMP] * 15.0F)) << 12)
| (((GLint) (rgba[i][RCOMP] * 15.0F)) );
}
}
break;
case GL_UNSIGNED_SHORT_4_4_4_4_REV:
if (dstFormat == GL_RGB) {
if (dstFormat == GL_RGBA) {
GLushort *dst = (GLushort *) dstAddr;
for (i=0;i<n;i++) {
dst[i] = (((GLint) (rgba[i][RCOMP] * 15.0F)) )
@ -1325,9 +1343,27 @@ _mesa_pack_float_rgba_span( GLcontext *ctx,
| (((GLint) (rgba[i][ACOMP] * 15.0F)) << 12);
}
}
else if (dstFormat == GL_BGRA) {
GLushort *dst = (GLushort *) dstAddr;
for (i=0;i<n;i++) {
dst[i] = (((GLint) (rgba[i][BCOMP] * 15.0F)) )
| (((GLint) (rgba[i][GCOMP] * 15.0F)) << 4)
| (((GLint) (rgba[i][RCOMP] * 15.0F)) << 8)
| (((GLint) (rgba[i][ACOMP] * 15.0F)) << 12);
}
}
else if (dstFormat == GL_ABGR_EXT) {
GLushort *dst = (GLushort *) dstAddr;
for (i=0;i<n;i++) {
dst[i] = (((GLint) (rgba[i][ACOMP] * 15.0F)) )
| (((GLint) (rgba[i][BCOMP] * 15.0F)) << 4)
| (((GLint) (rgba[i][GCOMP] * 15.0F)) << 8)
| (((GLint) (rgba[i][RCOMP] * 15.0F)) << 12);
}
}
break;
case GL_UNSIGNED_SHORT_5_5_5_1:
if (dstFormat == GL_RGB) {
if (dstFormat == GL_RGBA) {
GLushort *dst = (GLushort *) dstAddr;
for (i=0;i<n;i++) {
dst[i] = (((GLint) (rgba[i][RCOMP] * 31.0F)) << 11)
@ -1336,9 +1372,27 @@ _mesa_pack_float_rgba_span( GLcontext *ctx,
| (((GLint) (rgba[i][ACOMP] * 1.0F)) );
}
}
else if (dstFormat == GL_BGRA) {
GLushort *dst = (GLushort *) dstAddr;
for (i=0;i<n;i++) {
dst[i] = (((GLint) (rgba[i][BCOMP] * 31.0F)) << 11)
| (((GLint) (rgba[i][GCOMP] * 31.0F)) << 6)
| (((GLint) (rgba[i][RCOMP] * 31.0F)) << 1)
| (((GLint) (rgba[i][ACOMP] * 1.0F)) );
}
}
else if (dstFormat == GL_ABGR_EXT) {
GLushort *dst = (GLushort *) dstAddr;
for (i=0;i<n;i++) {
dst[i] = (((GLint) (rgba[i][ACOMP] * 31.0F)) << 11)
| (((GLint) (rgba[i][BCOMP] * 31.0F)) << 6)
| (((GLint) (rgba[i][GCOMP] * 31.0F)) << 1)
| (((GLint) (rgba[i][RCOMP] * 1.0F)) );
}
}
break;
case GL_UNSIGNED_SHORT_1_5_5_5_REV:
if (dstFormat == GL_RGB) {
if (dstFormat == GL_RGBA) {
GLushort *dst = (GLushort *) dstAddr;
for (i=0;i<n;i++) {
dst[i] = (((GLint) (rgba[i][RCOMP] * 31.0F)) )
@ -1347,6 +1401,24 @@ _mesa_pack_float_rgba_span( GLcontext *ctx,
| (((GLint) (rgba[i][ACOMP] * 1.0F)) << 15);
}
}
else if (dstFormat == GL_BGRA) {
GLushort *dst = (GLushort *) dstAddr;
for (i=0;i<n;i++) {
dst[i] = (((GLint) (rgba[i][BCOMP] * 31.0F)) )
| (((GLint) (rgba[i][GCOMP] * 31.0F)) << 5)
| (((GLint) (rgba[i][RCOMP] * 31.0F)) << 10)
| (((GLint) (rgba[i][ACOMP] * 1.0F)) << 15);
}
}
else if (dstFormat == GL_ABGR_EXT) {
GLushort *dst = (GLushort *) dstAddr;
for (i=0;i<n;i++) {
dst[i] = (((GLint) (rgba[i][ACOMP] * 31.0F)) )
| (((GLint) (rgba[i][BCOMP] * 31.0F)) << 5)
| (((GLint) (rgba[i][GCOMP] * 31.0F)) << 10)
| (((GLint) (rgba[i][RCOMP] * 1.0F)) << 15);
}
}
break;
case GL_UNSIGNED_INT_8_8_8_8:
if (dstFormat == GL_RGBA) {