nv30, nv40: partially non-trivially unify nv[34]0_fragtex.c

The bulk files cannot be unified, but the frontend can and allows to
share some code and simplify state_emit.c

1 files changed, 49 insertions, 0 deletions

diff --git a/src/gallium/drivers/nvfx/nvfx_fragtex.c b/src/gallium/drivers/nvfx/nvfx_fragtex.c
new file mode 100644
index 00000000000..84e4eb10042
--- /dev/null
+++ b/src/gallium/drivers/nvfx/nvfx_fragtex.c
@@ -0,0 +1,49 @@
+#include "nvfx_context.h"
+
+static boolean
+nvfx_fragtex_validate(struct nvfx_context *nvfx)
+{
+	struct nvfx_fragment_program *fp = nvfx->fragprog;
+	struct nvfx_state *state = &nvfx->state;
+	struct nouveau_stateobj *so;
+	unsigned samplers, unit;
+
+	samplers = state->fp_samplers & ~fp->samplers;
+	while (samplers) {
+		unit = ffs(samplers) - 1;
+		samplers &= ~(1 << unit);
+
+		so = so_new(1, 1, 0);
+		so_method(so, nvfx->screen->eng3d, NV34TCL_TX_ENABLE(unit), 1);
+		so_data  (so, 0);
+		so_ref(so, &nvfx->state.hw[NVFX_STATE_FRAGTEX0 + unit]);
+		so_ref(NULL, &so);
+		state->dirty |= (1ULL << (NVFX_STATE_FRAGTEX0 + unit));
+	}
+
+	samplers = nvfx->dirty_samplers & fp->samplers;
+	while (samplers) {
+		unit = ffs(samplers) - 1;
+		samplers &= ~(1 << unit);
+
+		if(!nvfx->is_nv4x)
+			so = nv30_fragtex_build(nvfx, unit);
+		else
+			so = nv40_fragtex_build(nvfx, unit);
+
+		so_ref(so, &nvfx->state.hw[NVFX_STATE_FRAGTEX0 + unit]);
+		so_ref(NULL, &so);
+		state->dirty |= (1ULL << (NVFX_STATE_FRAGTEX0 + unit));
+	}
+
+	nvfx->state.fp_samplers = fp->samplers;
+	return FALSE;
+}
+
+struct nvfx_state_entry nvfx_state_fragtex = {
+	.validate = nvfx_fragtex_validate,
+	.dirty = {
+		.pipe = NVFX_NEW_SAMPLER | NVFX_NEW_FRAGPROG,
+		.hw = 0
+	}
+};