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r300: Use the defined values when writing to R300_RS_ROUTE_0.

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This commit is contained in:
Oliver McFadden 2007-05-13 12:56:59 +00:00
parent 2189ff5e51
commit 4e641bf3e9
2 changed files with 6 additions and 1 deletions
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2
src/mesa/drivers/dri/r300/r300_ioctl.c
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@ -289,7 +289,7 @@ static void r300EmitClearState(GLcontext * ctx)
R300_STATECHANGE(r300, rr);
reg_start(R300_RS_ROUTE_0, 0);
e32(0x00004000);
e32(R300_RS_ROUTE_0_COLOR);
R300_STATECHANGE(r300, fp);
reg_start(R300_PFS_CNTL_0, 2);

5
src/mesa/drivers/dri/r300/r300_reg.h
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@ -673,6 +673,11 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
/* Special handling for color: When the fragment program uses color,
* the ROUTE_0_COLOR bit is set and ROUTE_0_COLOR_DEST contains the
* color register index.
*
* Apperently you may set the R300_RS_ROUTE_0_COLOR bit, but not provide any
* R300_RS_ROUTE_0_COLOR_DEST value; this setup is used for clearing the state.
* See r300_ioctl.c:r300EmitClearState. I'm not sure if this setup is strictly
* correct or not. - Oliver.
*/
# define R300_RS_ROUTE_0_COLOR (1 << 14)
# define R300_RS_ROUTE_0_COLOR_DEST_SHIFT 17