nouveau: Unreference state/buffer objects on context/screen destruction.

- unreference state objects so that buffer objects are unreferenced and
eventually destroyed
- free channel at screen's destruction

Based on Krzysztof Smiechowicz's patch.

1 files changed, 10 insertions, 4 deletions

diff --git a/src/gallium/drivers/nv40/nv40_fragprog.c b/src/gallium/drivers/nv40/nv40_fragprog.c
index 468d3509a98..bb9c85cc434 100644
--- a/src/gallium/drivers/nv40/nv40_fragprog.c
+++ b/src/gallium/drivers/nv40/nv40_fragprog.c
@@ -149,7 +149,7 @@ emit_src(struct nv40_fpc *fpc, int pos, struct nv40_sreg src)
 				sizeof(uint32_t) * 4);
 		}
 
-		sr |= (NV40_FP_REG_TYPE_CONST << NV40_FP_REG_TYPE_SHIFT);	
+		sr |= (NV40_FP_REG_TYPE_CONST << NV40_FP_REG_TYPE_SHIFT);
 		break;
 	case NV40SR_NONE:
 		sr |= (NV40_FP_REG_TYPE_INPUT << NV40_FP_REG_TYPE_SHIFT);
@@ -768,7 +768,7 @@ nv40_fragprog_prepare(struct nv40_fpc *fpc)
 		{
 			struct tgsi_full_immediate *imm;
 			float vals[4];
-			
+
 			imm = &p.FullToken.FullImmediate;
 			assert(imm->Immediate.DataType == TGSI_IMM_FLOAT32);
 			assert(fpc->nr_imm < MAX_IMM);
@@ -852,7 +852,7 @@ nv40_fragprog_translate(struct nv40_context *nv40,
 	fp->insn[fpc->inst_offset + 1] = 0x00000000;
 	fp->insn[fpc->inst_offset + 2] = 0x00000000;
 	fp->insn[fpc->inst_offset + 3] = 0x00000000;
-	
+
 	fp->translated = TRUE;
 out_err:
 	tgsi_parse_free(&parse);
@@ -933,7 +933,7 @@ nv40_fragprog_validate(struct nv40_context *nv40)
 update_constants:
 	if (fp->nr_consts) {
 		float *map;
-		
+
 		map = pipe_buffer_map(pscreen, constbuf,
 				      PIPE_BUFFER_USAGE_CPU_READ);
 		for (i = 0; i < fp->nr_consts; i++) {
@@ -964,6 +964,12 @@ void
 nv40_fragprog_destroy(struct nv40_context *nv40,
 		      struct nv40_fragment_program *fp)
 {
+	if (fp->buffer)
+		pipe_buffer_reference(&fp->buffer, NULL);
+
+	if (fp->so)
+		so_ref(NULL, &fp->so);
+
 	if (fp->insn_len)
 		FREE(fp->insn);
 }