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Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_prim_setup.c')
-rw-r--r--src/gallium/drivers/llvmpipe/lp_prim_setup.c190
1 files changed, 190 insertions, 0 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_prim_setup.c b/src/gallium/drivers/llvmpipe/lp_prim_setup.c
new file mode 100644
index 0000000000..b14f8fb99d
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+++ b/src/gallium/drivers/llvmpipe/lp_prim_setup.c
@@ -0,0 +1,190 @@
+/**************************************************************************
+ *
+ * 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.
+ *
+ **************************************************************************/
+
+/**
+ * \brief A draw stage that drives our triangle setup routines from
+ * within the draw pipeline. One of two ways to drive setup, the
+ * other being in lp_prim_vbuf.c.
+ *
+ * \author Keith Whitwell <keith@tungstengraphics.com>
+ * \author Brian Paul
+ */
+
+
+#include "lp_context.h"
+#include "lp_setup.h"
+#include "lp_state.h"
+#include "lp_prim_setup.h"
+#include "draw/draw_pipe.h"
+#include "draw/draw_vertex.h"
+#include "util/u_memory.h"
+
+/**
+ * Triangle setup info (derived from draw_stage).
+ * Also used for line drawing (taking some liberties).
+ */
+struct setup_stage {
+ struct draw_stage stage; /**< This must be first (base class) */
+
+ struct setup_context *setup;
+};
+
+
+
+/**
+ * Basically a cast wrapper.
+ */
+static INLINE struct setup_stage *setup_stage( struct draw_stage *stage )
+{
+ return (struct setup_stage *)stage;
+}
+
+
+typedef const float (*cptrf4)[4];
+
+static void
+do_tri(struct draw_stage *stage, struct prim_header *prim)
+{
+ struct setup_stage *setup = setup_stage( stage );
+
+ llvmpipe_setup_tri( setup->setup,
+ (cptrf4)prim->v[0]->data,
+ (cptrf4)prim->v[1]->data,
+ (cptrf4)prim->v[2]->data );
+}
+
+static void
+do_line(struct draw_stage *stage, struct prim_header *prim)
+{
+ struct setup_stage *setup = setup_stage( stage );
+
+ llvmpipe_setup_line( setup->setup,
+ (cptrf4)prim->v[0]->data,
+ (cptrf4)prim->v[1]->data );
+}
+
+static void
+do_point(struct draw_stage *stage, struct prim_header *prim)
+{
+ struct setup_stage *setup = setup_stage( stage );
+
+ llvmpipe_setup_point( setup->setup,
+ (cptrf4)prim->v[0]->data );
+}
+
+
+
+
+static void setup_begin( struct draw_stage *stage )
+{
+ struct setup_stage *setup = setup_stage(stage);
+
+ llvmpipe_setup_prepare( setup->setup );
+
+ stage->point = do_point;
+ stage->line = do_line;
+ stage->tri = do_tri;
+}
+
+
+static void setup_first_point( struct draw_stage *stage,
+ struct prim_header *header )
+{
+ setup_begin(stage);
+ stage->point( stage, header );
+}
+
+static void setup_first_line( struct draw_stage *stage,
+ struct prim_header *header )
+{
+ setup_begin(stage);
+ stage->line( stage, header );
+}
+
+
+static void setup_first_tri( struct draw_stage *stage,
+ struct prim_header *header )
+{
+ setup_begin(stage);
+ stage->tri( stage, header );
+}
+
+
+
+static void setup_flush( struct draw_stage *stage,
+ unsigned flags )
+{
+ stage->point = setup_first_point;
+ stage->line = setup_first_line;
+ stage->tri = setup_first_tri;
+}
+
+
+static void reset_stipple_counter( struct draw_stage *stage )
+{
+}
+
+
+static void render_destroy( struct draw_stage *stage )
+{
+ struct setup_stage *ssetup = setup_stage(stage);
+ llvmpipe_setup_destroy_context(ssetup->setup);
+ FREE( stage );
+}
+
+
+/**
+ * Create a new primitive setup/render stage.
+ */
+struct draw_stage *lp_draw_render_stage( struct llvmpipe_context *llvmpipe )
+{
+ struct setup_stage *sstage = CALLOC_STRUCT(setup_stage);
+
+ sstage->setup = llvmpipe_setup_create_context(llvmpipe);
+ sstage->stage.draw = llvmpipe->draw;
+ sstage->stage.point = setup_first_point;
+ sstage->stage.line = setup_first_line;
+ sstage->stage.tri = setup_first_tri;
+ sstage->stage.flush = setup_flush;
+ sstage->stage.reset_stipple_counter = reset_stipple_counter;
+ sstage->stage.destroy = render_destroy;
+
+ return (struct draw_stage *)sstage;
+}
+
+struct setup_context *
+lp_draw_setup_context( struct draw_stage *stage )
+{
+ struct setup_stage *ssetup = setup_stage(stage);
+ return ssetup->setup;
+}
+
+void
+lp_draw_flush( struct draw_stage *stage )
+{
+ stage->flush( stage, 0 );
+}