summaryrefslogtreecommitdiff
path: root/src/gallium/drivers/softpipe/sp_draw_arrays.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/gallium/drivers/softpipe/sp_draw_arrays.c')
-rw-r--r--src/gallium/drivers/softpipe/sp_draw_arrays.c298
1 files changed, 298 insertions, 0 deletions
diff --git a/src/gallium/drivers/softpipe/sp_draw_arrays.c b/src/gallium/drivers/softpipe/sp_draw_arrays.c
new file mode 100644
index 0000000000..79daa68f3b
--- /dev/null
+++ b/src/gallium/drivers/softpipe/sp_draw_arrays.c
@@ -0,0 +1,298 @@
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * 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, 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 TUNGSTEN GRAPHICS AND/OR ITS 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.
+ *
+ **************************************************************************/
+
+/* Author:
+ * Brian Paul
+ * Keith Whitwell
+ */
+
+
+#include "pipe/p_defines.h"
+#include "pipe/p_context.h"
+#include "util/u_inlines.h"
+#include "util/u_prim.h"
+
+#include "sp_context.h"
+#include "sp_query.h"
+#include "sp_state.h"
+#include "sp_texture.h"
+
+#include "draw/draw_context.h"
+
+
+
+
+
+
+/**
+ * Draw vertex arrays, with optional indexing.
+ * Basically, map the vertex buffers (and drawing surfaces), then hand off
+ * the drawing to the 'draw' module.
+ */
+static void
+softpipe_draw_range_elements_instanced(struct pipe_context *pipe,
+ struct pipe_resource *indexBuffer,
+ unsigned indexSize,
+ int indexBias,
+ unsigned minIndex,
+ unsigned maxIndex,
+ unsigned mode,
+ unsigned start,
+ unsigned count,
+ unsigned startInstance,
+ unsigned instanceCount);
+
+
+void
+softpipe_draw_arrays(struct pipe_context *pipe, unsigned mode,
+ unsigned start, unsigned count)
+{
+ softpipe_draw_range_elements_instanced(pipe,
+ NULL,
+ 0,
+ 0,
+ 0,
+ 0xffffffff,
+ mode,
+ start,
+ count,
+ 0,
+ 1);
+}
+
+void
+softpipe_draw_stream_output(struct pipe_context *pipe, unsigned mode)
+{
+ struct softpipe_context *sp = softpipe_context(pipe);
+ struct draw_context *draw = sp->draw;
+ const unsigned start = 0;
+ const unsigned count = sp->so_target.so_count[0];
+ void *buf = sp->so_target.buffer[0]->data;
+ int offset = sp->so_target.offset[0];
+
+ if (!softpipe_check_render_cond(sp) ||
+ sp->so_target.num_buffers != 1)
+ return;
+
+ sp->reduced_api_prim = u_reduced_prim(mode);
+
+ if (sp->dirty) {
+ softpipe_update_derived(sp);
+ }
+
+ softpipe_map_transfers(sp);
+
+ /* Map so buffers */
+ if (offset < 0) /* we were appending so start from beginning */
+ offset = 0;
+ buf = (void*)((int32_t*)buf + offset);
+ draw_set_mapped_vertex_buffer(draw, 0, buf);
+
+ draw_set_mapped_element_buffer_range(draw,
+ 0, 0,
+ start,
+ start + count - 1,
+ NULL);
+
+ /* draw! */
+ draw_arrays_instanced(draw, mode, start, count, 0, 1);
+
+ /* unmap vertex/index buffers - will cause draw module to flush */
+ draw_set_mapped_vertex_buffer(draw, 0, NULL);
+
+ /*
+ * TODO: Flush only when a user vertex/index buffer is present
+ * (or even better, modify draw module to do this
+ * internally when this condition is seen?)
+ */
+ draw_flush(draw);
+
+ /* Note: leave drawing surfaces mapped */
+ sp->dirty_render_cache = TRUE;
+}
+
+
+void
+softpipe_draw_range_elements(struct pipe_context *pipe,
+ struct pipe_resource *indexBuffer,
+ unsigned indexSize,
+ int indexBias,
+ unsigned min_index,
+ unsigned max_index,
+ unsigned mode, unsigned start, unsigned count)
+{
+ softpipe_draw_range_elements_instanced(pipe,
+ indexBuffer,
+ indexSize,
+ indexBias,
+ min_index,
+ max_index,
+ mode,
+ start,
+ count,
+ 0,
+ 1);
+}
+
+
+void
+softpipe_draw_elements(struct pipe_context *pipe,
+ struct pipe_resource *indexBuffer,
+ unsigned indexSize, int indexBias,
+ unsigned mode, unsigned start, unsigned count)
+{
+ softpipe_draw_range_elements_instanced(pipe,
+ indexBuffer,
+ indexSize,
+ indexBias,
+ 0,
+ 0xffffffff,
+ mode,
+ start,
+ count,
+ 0,
+ 1);
+}
+
+void
+softpipe_draw_arrays_instanced(struct pipe_context *pipe,
+ unsigned mode,
+ unsigned start,
+ unsigned count,
+ unsigned startInstance,
+ unsigned instanceCount)
+{
+ softpipe_draw_range_elements_instanced(pipe,
+ NULL,
+ 0,
+ 0,
+ 0,
+ 0xffffffff,
+ mode,
+ start,
+ count,
+ startInstance,
+ instanceCount);
+}
+
+void
+softpipe_draw_elements_instanced(struct pipe_context *pipe,
+ struct pipe_resource *indexBuffer,
+ unsigned indexSize,
+ int indexBias,
+ unsigned mode,
+ unsigned start,
+ unsigned count,
+ unsigned startInstance,
+ unsigned instanceCount)
+{
+ softpipe_draw_range_elements_instanced(pipe,
+ indexBuffer,
+ indexSize,
+ indexBias,
+ 0,
+ 0xffffffff,
+ mode,
+ start,
+ count,
+ startInstance,
+ instanceCount);
+}
+
+static void
+softpipe_draw_range_elements_instanced(struct pipe_context *pipe,
+ struct pipe_resource *indexBuffer,
+ unsigned indexSize,
+ int indexBias,
+ unsigned minIndex,
+ unsigned maxIndex,
+ unsigned mode,
+ unsigned start,
+ unsigned count,
+ unsigned startInstance,
+ unsigned instanceCount)
+{
+ struct softpipe_context *sp = softpipe_context(pipe);
+ struct draw_context *draw = sp->draw;
+ unsigned i;
+
+ if (!softpipe_check_render_cond(sp))
+ return;
+
+ sp->reduced_api_prim = u_reduced_prim(mode);
+
+ if (sp->dirty) {
+ softpipe_update_derived(sp);
+ }
+
+ softpipe_map_transfers(sp);
+
+ /* Map vertex buffers */
+ for (i = 0; i < sp->num_vertex_buffers; i++) {
+ void *buf = softpipe_resource(sp->vertex_buffer[i].buffer)->data;
+ draw_set_mapped_vertex_buffer(draw, i, buf);
+ }
+
+ /* Map index buffer, if present */
+ if (indexBuffer) {
+ void *mapped_indexes = softpipe_resource(indexBuffer)->data;
+ draw_set_mapped_element_buffer_range(draw,
+ indexSize,
+ indexBias,
+ minIndex,
+ maxIndex,
+ mapped_indexes);
+ } else {
+ /* no index/element buffer */
+ draw_set_mapped_element_buffer_range(draw,
+ 0, 0,
+ start,
+ start + count - 1,
+ NULL);
+ }
+
+ /* draw! */
+ draw_arrays_instanced(draw, mode, start, count, startInstance, instanceCount);
+
+ /* unmap vertex/index buffers - will cause draw module to flush */
+ for (i = 0; i < sp->num_vertex_buffers; i++) {
+ draw_set_mapped_vertex_buffer(draw, i, NULL);
+ }
+ if (indexBuffer) {
+ draw_set_mapped_element_buffer(draw, 0, 0, NULL);
+ }
+
+ /*
+ * TODO: Flush only when a user vertex/index buffer is present
+ * (or even better, modify draw module to do this
+ * internally when this condition is seen?)
+ */
+ draw_flush(draw);
+
+ /* Note: leave drawing surfaces mapped */
+ sp->dirty_render_cache = TRUE;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2025-06-08 19:55:01 +0000