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/*
* Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
*
* 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_cs.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 void r300_emit_vertex(struct r300_context* r300,
const struct vertex_header* vertex)
{
/* XXX */
}
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;
CS_LOCALS(r300);
int i;
r300_emit_dirty_state(r300);
/* XXX should be count * vtx size */
BEGIN_CS(2 + count + 6);
OUT_CS(CP_PACKET3(R200_3D_DRAW_IMMD_2, count));
OUT_CS(hwprim | R300_PRIM_WALK_RING |
(count << R300_PRIM_NUM_VERTICES_SHIFT));
for (i = 0; i < count; i++) {
r300_emit_vertex(r300, prim->v[i]);
}
R300_PACIFY;
END_CS;
}
/* 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_PRIM_TYPE_POINT, 1);
}
static void r300_emit_line(struct draw_stage* draw, struct prim_header* prim)
{
r300_emit_prim(draw, prim, R300_PRIM_TYPE_LINE, 2);
}
static void r300_emit_tri(struct draw_stage* draw, struct prim_header* prim)
{
r300_emit_prim(draw, prim, R300_PRIM_TYPE_TRI_LIST, 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;
}
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