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do clipping in get_tile()

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This commit is contained in:
Brian 2007-08-11 21:18:33 +01:00
parent 498c9e9782
commit e209ca866d
1 changed files with 14 additions and 6 deletions
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20
src/mesa/pipe/softpipe/sp_surface.c
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@ -104,6 +104,7 @@ a8r8g8b8_get_tile(struct pipe_surface *ps,
= ((const GLuint *) (ps->region->map + ps->offset))
+ y * ps->region->pitch + x;
GLuint i, j;
GLuint w0 = w;
assert(ps->format == PIPE_FORMAT_U_A8_R8_G8_B8);
@ -111,22 +112,24 @@ a8r8g8b8_get_tile(struct pipe_surface *ps,
assert(x + w <= ps->width);
assert(y + h <= ps->height);
#else
/* temp hack */
/* temp clipping hack */
if (x + w > ps->width)
w = ps->width - x;
if (y + h > ps->height)
h = ps->height -y;
#endif
for (i = 0; i < h; i++) {
GLfloat *pRow = p;
for (j = 0; j < w; j++) {
const GLuint pixel = src[j];
p[0] = UBYTE_TO_FLOAT((pixel >> 16) & 0xff);
p[1] = UBYTE_TO_FLOAT((pixel >> 8) & 0xff);
p[2] = UBYTE_TO_FLOAT((pixel >> 0) & 0xff);
p[3] = UBYTE_TO_FLOAT((pixel >> 24) & 0xff);
p += 4;
pRow[0] = UBYTE_TO_FLOAT((pixel >> 16) & 0xff);
pRow[1] = UBYTE_TO_FLOAT((pixel >> 8) & 0xff);
pRow[2] = UBYTE_TO_FLOAT((pixel >> 0) & 0xff);
pRow[3] = UBYTE_TO_FLOAT((pixel >> 24) & 0xff);
pRow += 4;
}
src += ps->region->pitch;
p += w0 * 4;
}
}
@ -348,9 +351,14 @@ s8_write_quad_stencil(struct softpipe_surface *sps,
}
/**
* Initialize the quad_read/write and get/put_tile() methods.
*/
void
softpipe_init_surface_funcs(struct softpipe_surface *sps)
{
assert(sps->surface.format);
switch (sps->surface.format) {
case PIPE_FORMAT_U_A8_R8_G8_B8:
sps->read_quad_f_swz = a8r8g8b8_read_quad_f_swz;