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path: root/src/gallium/auxiliary/draw/draw_pt_emit.c
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-rw-r--r--src/gallium/auxiliary/draw/draw_pt_emit.c298
1 files changed, 298 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pt_emit.c b/src/gallium/auxiliary/draw/draw_pt_emit.c
new file mode 100644
index 0000000000..d520b05869
--- /dev/null
+++ b/src/gallium/auxiliary/draw/draw_pt_emit.c
@@ -0,0 +1,298 @@
+/**************************************************************************
+ *
+ * Copyright 2008 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.
+ *
+ **************************************************************************/
+
+#include "util/u_memory.h"
+#include "draw/draw_context.h"
+#include "draw/draw_private.h"
+#include "draw/draw_vbuf.h"
+#include "draw/draw_vertex.h"
+#include "draw/draw_pt.h"
+#include "translate/translate.h"
+#include "translate/translate_cache.h"
+
+struct pt_emit {
+ struct draw_context *draw;
+
+ struct translate *translate;
+
+ struct translate_cache *cache;
+ unsigned prim;
+
+ const struct vertex_info *vinfo;
+};
+
+void draw_pt_emit_prepare( struct pt_emit *emit,
+ unsigned prim,
+ unsigned *max_vertices )
+{
+ struct draw_context *draw = emit->draw;
+ const struct vertex_info *vinfo;
+ unsigned dst_offset;
+ struct translate_key hw_key;
+ unsigned i;
+ boolean ok;
+
+ /* XXX: need to flush to get prim_vbuf.c to release its allocation??
+ */
+ draw_do_flush( draw, DRAW_FLUSH_BACKEND );
+
+
+ /* XXX: may need to defensively reset this later on as clipping can
+ * clobber this state in the render backend.
+ */
+ emit->prim = prim;
+
+ ok = draw->render->set_primitive(draw->render, emit->prim);
+ if (!ok) {
+ assert(0);
+ return;
+ }
+
+ /* Must do this after set_primitive() above:
+ */
+ emit->vinfo = vinfo = draw->render->get_vertex_info(draw->render);
+
+
+ /* Translate from pipeline vertices to hw vertices.
+ */
+ dst_offset = 0;
+ for (i = 0; i < vinfo->num_attribs; i++) {
+ unsigned emit_sz = 0;
+ unsigned src_buffer = 0;
+ unsigned output_format;
+ unsigned src_offset = (vinfo->attrib[i].src_index * 4 * sizeof(float) );
+
+
+
+ switch (vinfo->attrib[i].emit) {
+ case EMIT_4F:
+ output_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
+ emit_sz = 4 * sizeof(float);
+ break;
+ case EMIT_3F:
+ output_format = PIPE_FORMAT_R32G32B32_FLOAT;
+ emit_sz = 3 * sizeof(float);
+ break;
+ case EMIT_2F:
+ output_format = PIPE_FORMAT_R32G32_FLOAT;
+ emit_sz = 2 * sizeof(float);
+ break;
+ case EMIT_1F:
+ output_format = PIPE_FORMAT_R32_FLOAT;
+ emit_sz = 1 * sizeof(float);
+ break;
+ case EMIT_1F_PSIZE:
+ output_format = PIPE_FORMAT_R32_FLOAT;
+ emit_sz = 1 * sizeof(float);
+ src_buffer = 1;
+ src_offset = 0;
+ break;
+ case EMIT_4UB:
+ output_format = PIPE_FORMAT_B8G8R8A8_UNORM;
+ emit_sz = 4 * sizeof(ubyte);
+ break;
+ default:
+ assert(0);
+ output_format = PIPE_FORMAT_NONE;
+ emit_sz = 0;
+ break;
+ }
+
+ hw_key.element[i].input_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
+ hw_key.element[i].input_buffer = src_buffer;
+ hw_key.element[i].input_offset = src_offset;
+ hw_key.element[i].output_format = output_format;
+ hw_key.element[i].output_offset = dst_offset;
+
+ dst_offset += emit_sz;
+ }
+
+ hw_key.nr_elements = vinfo->num_attribs;
+ hw_key.output_stride = vinfo->size * 4;
+
+ if (!emit->translate ||
+ translate_key_compare(&emit->translate->key, &hw_key) != 0)
+ {
+ translate_key_sanitize(&hw_key);
+ emit->translate = translate_cache_find(emit->cache, &hw_key);
+ }
+
+ *max_vertices = (draw->render->max_vertex_buffer_bytes /
+ (vinfo->size * 4));
+
+ /* even number */
+ *max_vertices = *max_vertices & ~1;
+}
+
+
+void draw_pt_emit( struct pt_emit *emit,
+ const float (*vertex_data)[4],
+ unsigned vertex_count,
+ unsigned stride,
+ const ushort *elts,
+ unsigned count )
+{
+ struct draw_context *draw = emit->draw;
+ struct translate *translate = emit->translate;
+ struct vbuf_render *render = draw->render;
+ void *hw_verts;
+
+ /* XXX: need to flush to get prim_vbuf.c to release its allocation??
+ */
+ draw_do_flush( draw, DRAW_FLUSH_BACKEND );
+
+ /* XXX: and work out some way to coordinate the render primitive
+ * between vbuf.c and here...
+ */
+ if (!draw->render->set_primitive(draw->render, emit->prim)) {
+ assert(0);
+ return;
+ }
+
+ hw_verts = render->allocate_vertices(render,
+ (ushort)translate->key.output_stride,
+ (ushort)vertex_count);
+ if (!hw_verts) {
+ assert(0);
+ return;
+ }
+
+ translate->set_buffer(translate,
+ 0,
+ vertex_data,
+ stride );
+
+ translate->set_buffer(translate,
+ 1,
+ &draw->rasterizer->point_size,
+ 0);
+
+ translate->run( translate,
+ 0,
+ vertex_count,
+ hw_verts );
+
+ render->draw(render,
+ elts,
+ count);
+
+ render->release_vertices(render,
+ hw_verts,
+ translate->key.output_stride,
+ vertex_count);
+}
+
+
+void draw_pt_emit_linear(struct pt_emit *emit,
+ const float (*vertex_data)[4],
+ unsigned vertex_count,
+ unsigned stride,
+ unsigned start,
+ unsigned count)
+{
+ struct draw_context *draw = emit->draw;
+ struct translate *translate = emit->translate;
+ struct vbuf_render *render = draw->render;
+ void *hw_verts;
+
+#if 0
+ debug_printf("Linear emit\n");
+#endif
+ /* XXX: need to flush to get prim_vbuf.c to release its allocation??
+ */
+ draw_do_flush( draw, DRAW_FLUSH_BACKEND );
+
+ /* XXX: and work out some way to coordinate the render primitive
+ * between vbuf.c and here...
+ */
+ if (!draw->render->set_primitive(draw->render, emit->prim)) {
+ assert(0);
+ return;
+ }
+
+ hw_verts = render->allocate_vertices(render,
+ (ushort)translate->key.output_stride,
+ (ushort)count);
+ if (!hw_verts) {
+ assert(0);
+ return;
+ }
+
+ translate->set_buffer(translate, 0,
+ vertex_data, stride);
+
+ translate->set_buffer(translate, 1,
+ &draw->rasterizer->point_size,
+ 0);
+
+ translate->run(translate,
+ 0,
+ vertex_count,
+ hw_verts);
+
+ if (0) {
+ unsigned i;
+ for (i = 0; i < vertex_count; i++) {
+ debug_printf("\n\n%s vertex %d:\n", __FUNCTION__, i);
+ draw_dump_emitted_vertex( emit->vinfo,
+ (const uint8_t *)hw_verts +
+ translate->key.output_stride * i );
+ }
+ }
+
+
+ render->draw_arrays(render, start, count);
+
+ render->release_vertices(render,
+ hw_verts,
+ translate->key.output_stride,
+ vertex_count);
+}
+
+struct pt_emit *draw_pt_emit_create( struct draw_context *draw )
+{
+ struct pt_emit *emit = CALLOC_STRUCT(pt_emit);
+ if (!emit)
+ return NULL;
+
+ emit->draw = draw;
+ emit->cache = translate_cache_create();
+ if (!emit->cache) {
+ FREE(emit);
+ return NULL;
+ }
+
+ return emit;
+}
+
+void draw_pt_emit_destroy( struct pt_emit *emit )
+{
+ if (emit->cache)
+ translate_cache_destroy(emit->cache);
+
+ FREE(emit);
+}
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