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fix DDX, DDY instructions (probably not finished though)

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Brian Paul
2003-04-21 15:03:46 +00:00
parent e5b244ff7f
commit 7bb832f9f7
1 changed files with 2 additions and 2 deletions
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4
src/mesa/swrast/s_nvfragprog.c
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@@ -1,5 +1,3 @@
/* $Id: s_nvfragprog.c,v 1.15 2003/04/11 01:20:15 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 5.1
@@ -556,6 +554,7 @@ execute_program( GLcontext *ctx,
* Finally, find the difference in the register values for
* the original and derivative runs.
*/
fetch_vector4( &inst->SrcReg[0], machine, program, a);
init_machine_deriv(ctx, machine, program, span,
'X', &dMachine);
execute_program(ctx, program, pc, &dMachine, span, column);
@@ -575,6 +574,7 @@ execute_program( GLcontext *ctx,
if (!fetch_vector4_deriv(&inst->SrcReg[0], span, 'Y', result)) {
init_machine_deriv(ctx, machine, program, span,
'Y', &dMachine);
fetch_vector4( &inst->SrcReg[0], machine, program, a);
execute_program(ctx, program, pc, &dMachine, span, column);
fetch_vector4( &inst->SrcReg[0], &dMachine, program, aNext );
result[0] = aNext[0] - a[0];