/* DW3: SVB maximum index */
#define _3DSTATE_MULTISAMPLE 0x790d /* GEN6+ */
+#define GEN8_3DSTATE_MULTISAMPLE 0x780d /* GEN8+ */
/* DW1 */
# define MS_PIXEL_LOCATION_CENTER (0 << 4)
# define MS_PIXEL_LOCATION_UPPER_LEFT (1 << 4)
# define MS_NUMSAMPLES_1 (0 << 1)
+# define MS_NUMSAMPLES_2 (1 << 1)
# define MS_NUMSAMPLES_4 (2 << 1)
# define MS_NUMSAMPLES_8 (3 << 1)
+# define MS_NUMSAMPLES_16 (4 << 1)
+
+#define _3DSTATE_SAMPLE_PATTERN 0x791c
#define _3DSTATE_STENCIL_BUFFER 0x790e /* ILK, SNB */
#define _3DSTATE_HIER_DEPTH_BUFFER 0x790f /* ILK, SNB */
--- /dev/null
+/*
+ * Copyright © 2012 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "intel_batchbuffer.h"
+
+#include "brw_context.h"
+#include "brw_defines.h"
+#include "brw_multisample_state.h"
+
+/**
+ * 3DSTATE_MULTISAMPLE
+ */
+void
+gen8_emit_3dstate_multisample(struct brw_context *brw, unsigned num_samples)
+{
+ uint32_t number_of_multisamples = 0;
+
+ switch (num_samples) {
+ case 0:
+ case 1:
+ number_of_multisamples = MS_NUMSAMPLES_1;
+ break;
+ case 2:
+ number_of_multisamples = MS_NUMSAMPLES_2;
+ break;
+ case 4:
+ number_of_multisamples = MS_NUMSAMPLES_4;
+ break;
+ case 8:
+ number_of_multisamples = MS_NUMSAMPLES_8;
+ break;
+ case 16:
+ number_of_multisamples = MS_NUMSAMPLES_16;
+ break;
+ default:
+ assert(!"Unrecognized num_samples in gen8_emit_3dstate_multisample");
+ break;
+ }
+
+ BEGIN_BATCH(2);
+ OUT_BATCH(GEN8_3DSTATE_MULTISAMPLE << 16 | (2 - 2));
+ OUT_BATCH(MS_PIXEL_LOCATION_CENTER | number_of_multisamples);
+ ADVANCE_BATCH();
+}
+
+/**
+ * 3DSTATE_SAMPLE_PATTERN
+ */
+void
+gen8_emit_3dstate_sample_pattern(struct brw_context *brw)
+{
+ BEGIN_BATCH(9);
+ OUT_BATCH(_3DSTATE_SAMPLE_PATTERN << 16 | (9 - 2));
+
+ /* 16x MSAA
+ * XXX: Need to program these.
+ */
+ OUT_BATCH(0);
+ OUT_BATCH(0);
+ OUT_BATCH(0);
+ OUT_BATCH(0);
+
+ /* 8x MSAA */
+ OUT_BATCH(brw_multisample_positions_8x[1]); /* sample positions 7654 */
+ OUT_BATCH(brw_multisample_positions_8x[0]); /* sample positions 3210 */
+
+ /* 4x MSAA */
+ OUT_BATCH(brw_multisample_positions_4x[0]);
+
+ /* 2x and 1x MSAA patterns
+ * XXX: need to program 2x.
+ */
+ OUT_BATCH(0x00880000);
+ ADVANCE_BATCH();
+}
+
+
+static void
+upload_multisample_state(struct brw_context *brw)
+{
+ struct gl_context *ctx = &brw->ctx;
+
+ /* _NEW_BUFFERS, _NEW_MULTISAMPLE */
+ unsigned num_samples = ctx->DrawBuffer->Visual.samples;
+
+ gen8_emit_3dstate_multisample(brw, num_samples);
+ gen6_emit_3dstate_sample_mask(brw, gen6_determine_sample_mask(brw));
+}
+
+const struct brw_tracked_state gen8_multisample_state = {
+ .dirty = {
+ .mesa = _NEW_BUFFERS | _NEW_MULTISAMPLE,
+ .brw = BRW_NEW_CONTEXT,
+ .cache = 0
+ },
+ .emit = upload_multisample_state
+};
projects / mesa.git / commitdiff