r300: Add stubs for swtcl immediate emit.

3 files changed, 108 insertions, 0 deletions

diff --git a/src/gallium/drivers/r300/Makefile b/src/gallium/drivers/r300/Makefile
index 1d61b31605d..8906d1227a9 100644
--- a/src/gallium/drivers/r300/Makefile
+++ b/src/gallium/drivers/r300/Makefile
@@ -12,6 +12,7 @@ C_SOURCES = \
 	r300_screen.c \
 	r300_state.c \
 	r300_surface.c \
+	r300_swtcl_emit.c \
 	r300_texture.c
 
 include ../../Makefile.template
diff --git a/src/gallium/drivers/r300/r300_context.c b/src/gallium/drivers/r300/r300_context.c
index e63e1278bf7..7b605ae87ac 100644
--- a/src/gallium/drivers/r300/r300_context.c
+++ b/src/gallium/drivers/r300/r300_context.c
@@ -50,6 +50,7 @@ struct pipe_context* r300_create_context(struct pipe_screen* screen,
     r300->context.clear = r300_clear;
 
     r300->draw = draw_create();
+    /*XXX draw_set_rasterize_stage(r300->draw, r300_draw_swtcl_stage(r300));*/
 
     r300->blend_color_state = CALLOC_STRUCT(r300_blend_color_state);
     r300->scissor_state = CALLOC_STRUCT(r300_scissor_state);
diff --git a/src/gallium/drivers/r300/r300_swtcl_emit.c b/src/gallium/drivers/r300/r300_swtcl_emit.c
new file mode 100644
index 00000000000..98340a7a7c4
--- /dev/null
+++ b/src/gallium/drivers/r300/r300_swtcl_emit.c
@@ -0,0 +1,106 @@
+/*
+ * Copyright 2008 Corbin Simpson <[email protected]>
+ *
+ * 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. */
+
+#include "draw/draw_pipe.h"
+#include "util/u_memory.h"
+
+#include "r300_context.h"
+#include "r300_reg.h"
+
+/* r300_swtcl_emit: Primitive vertex emission using an immediate
+ * vertex buffer and no HW TCL. */
+
+struct swtcl_stage {
+    /* Parent class */
+    struct draw_stage draw;
+
+    struct r300_context* r300;
+};
+
+static INLINE struct swtcl_stage* swtcl_stage(struct draw_stage* draw) {
+    return (struct swtcl_stage*)draw;
+}
+
+static INLINE void r300_emit_prim(struct draw_stage* draw,
+                                  struct prim_header* prim,
+                                  unsigned hwprim,
+                                  unsigned count)
+{
+    struct r300_context* r300 = swtcl_stage(draw)->r300;
+}
+
+/* Just as an aside...
+ *
+ * Radeons can do many more primitives:
+ * - Line strip
+ * - Triangle fan
+ * - Triangle strip
+ * - Line loop
+ * - Quads
+ * - Quad strip
+ * - Polygons
+ *
+ * The following were just the only ones in Draw. */
+
+static void r300_emit_point(struct draw_stage* draw, struct prim_header* prim)
+{
+    r300_emit_prim(draw, prim, R300_VAP_VF_CNTL__PRIM_POINTS, 1);
+}
+
+static void r300_emit_line(struct draw_stage* draw, struct prim_header* prim)
+{
+    r300_emit_prim(draw, prim, R300_VAP_VF_CNTL__PRIM_LINES, 2);
+}
+
+static void r300_emit_tri(struct draw_stage* draw, struct prim_header* prim)
+{
+    r300_emit_prim(draw, prim, R300_VAP_VF_CNTL__PRIM_TRIANGLES, 3);
+}
+
+static void r300_swtcl_flush(struct draw_stage* draw, unsigned flags)
+{
+}
+
+static void r300_reset_stipple(struct draw_stage* draw)
+{
+    /* XXX */
+}
+
+static void r300_swtcl_destroy(struct draw_stage* draw)
+{
+    FREE(draw);
+}
+
+struct draw_stage* r300_draw_swtcl_stage(struct r300_context* r300)
+{
+    struct swtcl_stage* swtcl = CALLOC_STRUCT(swtcl_stage);
+
+    swtcl->r300 = r300;
+    swtcl->draw.point = r300_emit_point;
+    swtcl->draw.line = r300_emit_line;
+    swtcl->draw.tri = r300_emit_tri;
+    swtcl->draw.flush = r300_swtcl_flush;
+    swtcl->draw.reset_stipple_counter = r300_reset_stipple;
+    swtcl->draw.destroy = r300_swtcl_destroy;
+
+    return &swtcl->draw;
+}