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-rw-r--r--src/gallium/drivers/llvmpipe/lp_draw_arrays.c192
1 files changed, 192 insertions, 0 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_draw_arrays.c b/src/gallium/drivers/llvmpipe/lp_draw_arrays.c
new file mode 100644
index 0000000000..89772e62d3
--- /dev/null
+++ b/src/gallium/drivers/llvmpipe/lp_draw_arrays.c
@@ -0,0 +1,192 @@
+/**************************************************************************
+ *
+ * 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 "pipe/internal/p_winsys_screen.h"
+#include "pipe/p_inlines.h"
+#include "util/u_prim.h"
+
+#include "lp_buffer.h"
+#include "lp_context.h"
+#include "lp_state.h"
+
+#include "draw/draw_context.h"
+
+
+
+static void
+llvmpipe_map_constant_buffers(struct llvmpipe_context *lp)
+{
+ struct pipe_screen *screen = lp->pipe.screen;
+ uint i, size;
+
+ for (i = 0; i < PIPE_SHADER_TYPES; i++) {
+ if (lp->constants[i].buffer && lp->constants[i].buffer->size)
+ lp->mapped_constants[i] = screen->buffer_map(screen, lp->constants[i].buffer,
+ PIPE_BUFFER_USAGE_CPU_READ);
+ }
+
+ if (lp->constants[PIPE_SHADER_VERTEX].buffer)
+ size = lp->constants[PIPE_SHADER_VERTEX].buffer->size;
+ else
+ size = 0;
+
+ lp->jit_context.constants = lp->mapped_constants[PIPE_SHADER_FRAGMENT];
+
+ draw_set_mapped_constant_buffer(lp->draw,
+ lp->mapped_constants[PIPE_SHADER_VERTEX],
+ size);
+}
+
+
+static void
+llvmpipe_unmap_constant_buffers(struct llvmpipe_context *lp)
+{
+ struct pipe_screen *screen = lp->pipe.screen;
+ uint i;
+
+ /* really need to flush all prims since the vert/frag shaders const buffers
+ * are going away now.
+ */
+ draw_flush(lp->draw);
+
+ draw_set_mapped_constant_buffer(lp->draw, NULL, 0);
+
+ lp->jit_context.constants = NULL;
+
+ for (i = 0; i < 2; i++) {
+ if (lp->constants[i].buffer && lp->constants[i].buffer->size)
+ screen->buffer_unmap(screen, lp->constants[i].buffer);
+ lp->mapped_constants[i] = NULL;
+ }
+}
+
+
+boolean
+llvmpipe_draw_arrays(struct pipe_context *pipe, unsigned mode,
+ unsigned start, unsigned count)
+{
+ return llvmpipe_draw_elements(pipe, NULL, 0, mode, start, count);
+}
+
+
+/**
+ * Draw vertex arrays, with optional indexing.
+ * Basically, map the vertex buffers (and drawing surfaces), then hand off
+ * the drawing to the 'draw' module.
+ */
+boolean
+llvmpipe_draw_range_elements(struct pipe_context *pipe,
+ struct pipe_buffer *indexBuffer,
+ unsigned indexSize,
+ unsigned min_index,
+ unsigned max_index,
+ unsigned mode, unsigned start, unsigned count)
+{
+ struct llvmpipe_context *lp = llvmpipe_context(pipe);
+ struct draw_context *draw = lp->draw;
+ unsigned i;
+
+ lp->reduced_api_prim = u_reduced_prim(mode);
+
+ if (lp->dirty)
+ llvmpipe_update_derived( lp );
+
+ llvmpipe_map_transfers(lp);
+ llvmpipe_map_constant_buffers(lp);
+
+ /*
+ * Map vertex buffers
+ */
+ for (i = 0; i < lp->num_vertex_buffers; i++) {
+ void *buf = llvmpipe_buffer(lp->vertex_buffer[i].buffer)->data;
+ draw_set_mapped_vertex_buffer(draw, i, buf);
+ }
+
+ /* Map index buffer, if present */
+ if (indexBuffer) {
+ void *mapped_indexes = llvmpipe_buffer(indexBuffer)->data;
+ draw_set_mapped_element_buffer_range(draw, indexSize,
+ min_index,
+ max_index,
+ mapped_indexes);
+ }
+ else {
+ /* no index/element buffer */
+ draw_set_mapped_element_buffer_range(draw, 0, start,
+ start + count - 1, NULL);
+ }
+
+ /* draw! */
+ draw_arrays(draw, mode, start, count);
+
+ /*
+ * unmap vertex/index buffers - will cause draw module to flush
+ */
+ for (i = 0; i < lp->num_vertex_buffers; i++) {
+ draw_set_mapped_vertex_buffer(draw, i, NULL);
+ }
+ if (indexBuffer) {
+ draw_set_mapped_element_buffer(draw, 0, NULL);
+ }
+
+
+ /* Note: leave drawing surfaces mapped */
+ llvmpipe_unmap_constant_buffers(lp);
+
+ lp->dirty_render_cache = TRUE;
+
+ return TRUE;
+}
+
+
+boolean
+llvmpipe_draw_elements(struct pipe_context *pipe,
+ struct pipe_buffer *indexBuffer,
+ unsigned indexSize,
+ unsigned mode, unsigned start, unsigned count)
+{
+ return llvmpipe_draw_range_elements( pipe, indexBuffer,
+ indexSize,
+ 0, 0xffffffff,
+ mode, start, count );
+}
+
+
+void
+llvmpipe_set_edgeflags(struct pipe_context *pipe, const unsigned *edgeflags)
+{
+ struct llvmpipe_context *lp = llvmpipe_context(pipe);
+ draw_set_edgeflags(lp->draw, edgeflags);
+}