r600g: start splitting out common code from eg/r600.

no point duplicating code that doesn't touch hw, also make it easier
to spot mistakes

1 files changed, 123 insertions, 0 deletions

diff --git a/src/gallium/drivers/r600/r600_state_common.c b/src/gallium/drivers/r600/r600_state_common.c
new file mode 100644
index 00000000000..722ce32263e
--- /dev/null
+++ b/src/gallium/drivers/r600/r600_state_common.c
@@ -0,0 +1,123 @@
+/*
+ * Copyright 2010 Red Hat Inc.
+ *           2010 Jerome Glisse
+ *
+ * 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
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR(S) AND/OR THEIR SUPPLIERS 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.
+ *
+ * Authors: Dave Airlie <[email protected]>
+ *          Jerome Glisse <[email protected]>
+ */
+#include <util/u_memory.h>
+#include <util/u_format.h>
+#include <pipebuffer/pb_buffer.h>
+#include "r600_pipe.h"
+
+/* common state between evergreen and r600 */
+
+void r600_set_index_buffer(struct pipe_context *ctx,
+			   const struct pipe_index_buffer *ib)
+{
+	struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
+
+	if (ib) {
+		pipe_resource_reference(&rctx->index_buffer.buffer, ib->buffer);
+		memcpy(&rctx->index_buffer, ib, sizeof(rctx->index_buffer));
+	} else {
+		pipe_resource_reference(&rctx->index_buffer.buffer, NULL);
+		memset(&rctx->index_buffer, 0, sizeof(rctx->index_buffer));
+	}
+
+	/* TODO make this more like a state */
+}
+
+void r600_set_vertex_buffers(struct pipe_context *ctx, unsigned count,
+			     const struct pipe_vertex_buffer *buffers)
+{
+	struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
+	struct pipe_vertex_buffer *vbo;
+	unsigned max_index = (unsigned)-1;
+
+	for (int i = 0; i < rctx->nvertex_buffer; i++) {
+		pipe_resource_reference(&rctx->vertex_buffer[i].buffer, NULL);
+	}
+	memcpy(rctx->vertex_buffer, buffers, sizeof(struct pipe_vertex_buffer) * count);
+
+	for (int i = 0; i < count; i++) {
+		vbo = (struct pipe_vertex_buffer*)&buffers[i];
+
+		rctx->vertex_buffer[i].buffer = NULL;
+		if (r600_buffer_is_user_buffer(buffers[i].buffer))
+			rctx->any_user_vbs = TRUE;
+		pipe_resource_reference(&rctx->vertex_buffer[i].buffer, buffers[i].buffer);
+
+		if (vbo->max_index == ~0) {
+			if (!vbo->stride)
+				vbo->max_index = 1;
+			else
+				vbo->max_index = (vbo->buffer->width0 - vbo->buffer_offset) / vbo->stride;
+		}
+		max_index = MIN2(vbo->max_index, max_index);
+	}
+	rctx->nvertex_buffer = count;
+	rctx->vb_max_index = max_index;
+}
+
+
+#define FORMAT_REPLACE(what, withwhat) \
+	case PIPE_FORMAT_##what: *format = PIPE_FORMAT_##withwhat; break
+
+void *r600_create_vertex_elements(struct pipe_context *ctx,
+				  unsigned count,
+				  const struct pipe_vertex_element *elements)
+{
+	struct r600_vertex_element *v = CALLOC_STRUCT(r600_vertex_element);
+	int i;
+	enum pipe_format *format;
+
+	assert(count < 32);
+	if (!v)
+		return NULL;
+
+	v->count = count;
+	memcpy(v->elements, elements, count * sizeof(struct pipe_vertex_element));
+
+	for (i = 0; i < count; i++) {
+		v->hw_format[i] = v->elements[i].src_format;
+		format = &v->hw_format[i];
+
+		switch (*format) {
+                    FORMAT_REPLACE(R64_FLOAT,           R32_FLOAT);
+                    FORMAT_REPLACE(R64G64_FLOAT,        R32G32_FLOAT);
+                    FORMAT_REPLACE(R64G64B64_FLOAT,     R32G32B32_FLOAT);
+                    FORMAT_REPLACE(R64G64B64A64_FLOAT,  R32G32B32A32_FLOAT);
+		default:;
+		}
+		v->incompatible_layout =
+			v->incompatible_layout ||
+			v->elements[i].src_format != v->hw_format[i] ||
+			v->elements[i].src_offset % 4 != 0;
+
+                v->hw_format_size[i] =
+			align(util_format_get_blocksize(v->hw_format[i]), 4);
+	}
+
+	v->refcount = 1;
+	return v;
+}