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mesa: implement stencil unpacking for GL_FLOAT_32_UNSIGNED_INT_24_8_REV

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Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Marek Olšák
2011-06-21 05:06:36 +02:00
parent 4843c7b24a
commit ec6fbbe36e
1 changed files with 32 additions and 3 deletions
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src/mesa/main/pack.c
+32 -3
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@@ -1971,7 +1971,8 @@ extract_uint_indexes(GLuint n, GLuint indexes[],
srcType == GL_INT ||
srcType == GL_UNSIGNED_INT_24_8_EXT ||
srcType == GL_HALF_FLOAT_ARB ||
srcType == GL_FLOAT);
srcType == GL_FLOAT ||
srcType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
switch (srcType) {
case GL_BITMAP:
@@ -2142,6 +2143,23 @@ extract_uint_indexes(GLuint n, GLuint indexes[],
}
}
break;
case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
{
GLuint i;
const GLuint *s = (const GLuint *) src;
if (unpack->SwapBytes) {
for (i = 0; i < n; i++) {
GLuint value = s[i*2+1];
SWAP4BYTE(value);
indexes[i] = value & 0xff; /* lower 8 bits */
}
}
else {
for (i = 0; i < n; i++)
indexes[i] = s[i*2+1] & 0xff; /* lower 8 bits */
}
}
break;
default:
_mesa_problem(NULL, "bad srcType in extract_uint_indexes");
@@ -4412,11 +4430,13 @@ _mesa_unpack_stencil_span( struct gl_context *ctx, GLuint n,
srcType == GL_INT ||
srcType == GL_UNSIGNED_INT_24_8_EXT ||
srcType == GL_HALF_FLOAT_ARB ||
srcType == GL_FLOAT);
srcType == GL_FLOAT ||
srcType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
ASSERT(dstType == GL_UNSIGNED_BYTE ||
dstType == GL_UNSIGNED_SHORT ||
dstType == GL_UNSIGNED_INT);
dstType == GL_UNSIGNED_INT ||
dstType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
/* only shift and offset apply to stencil */
transferOps &= IMAGE_SHIFT_OFFSET_BIT;
@@ -4488,6 +4508,15 @@ _mesa_unpack_stencil_span( struct gl_context *ctx, GLuint n,
case GL_UNSIGNED_INT:
memcpy(dest, indexes, n * sizeof(GLuint));
break;
case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
{
GLuint *dst = (GLuint *) dest;
GLuint i;
for (i = 0; i < n; i++) {
dst[i*2+1] = indexes[i] & 0xff; /* lower 8 bits */
}
}
break;
default:
_mesa_problem(ctx, "bad dstType in _mesa_unpack_stencil_span");
}