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Diffstat (limited to 'src/gallium/drivers/svga/svga_pipe_draw.c')
-rw-r--r--src/gallium/drivers/svga/svga_pipe_draw.c111
1 files changed, 76 insertions, 35 deletions
diff --git a/src/gallium/drivers/svga/svga_pipe_draw.c b/src/gallium/drivers/svga/svga_pipe_draw.c
index 87f6b3d..303d456 100644
--- a/src/gallium/drivers/svga/svga_pipe_draw.c
+++ b/src/gallium/drivers/svga/svga_pipe_draw.c
@@ -27,7 +27,9 @@
#include "util/u_format.h"
#include "util/u_inlines.h"
#include "util/u_prim.h"
+#include "util/u_prim_restart.h"
#include "util/u_time.h"
+#include "util/u_upload_mgr.h"
#include "indices/u_indices.h"
#include "svga_hw_reg.h"
@@ -35,12 +37,12 @@
#include "svga_context.h"
#include "svga_screen.h"
#include "svga_draw.h"
+#include "svga_shader.h"
#include "svga_state.h"
#include "svga_swtnl.h"
#include "svga_debug.h"
#include "svga_resource_buffer.h"
-
static enum pipe_error
retry_draw_range_elements( struct svga_context *svga,
struct pipe_resource *index_buffer,
@@ -51,26 +53,31 @@ retry_draw_range_elements( struct svga_context *svga,
unsigned prim,
unsigned start,
unsigned count,
+ unsigned start_instance,
unsigned instance_count,
boolean do_retry )
{
enum pipe_error ret = PIPE_OK;
- svga_hwtnl_set_unfilled( svga->hwtnl,
- svga->curr.rast->hw_unfilled );
-
- svga_hwtnl_set_flatshade( svga->hwtnl,
- svga->curr.rast->templ.flatshade,
- svga->curr.rast->templ.flatshade_first );
+ svga_hwtnl_set_fillmode(svga->hwtnl, svga->curr.rast->hw_fillmode);
ret = svga_update_state( svga, SVGA_STATE_HW_DRAW );
if (ret != PIPE_OK)
goto retry;
+ /** determine if flatshade is to be used after svga_update_state()
+ * in case the fragment shader is changed.
+ */
+ svga_hwtnl_set_flatshade(svga->hwtnl,
+ svga->curr.rast->templ.flatshade ||
+ svga->state.hw_draw.fs->uses_flat_interp,
+ svga->curr.rast->templ.flatshade_first);
+
ret = svga_hwtnl_draw_range_elements( svga->hwtnl,
index_buffer, index_size, index_bias,
min_index, max_index,
- prim, start, count );
+ prim, start, count,
+ start_instance, instance_count);
if (ret != PIPE_OK)
goto retry;
@@ -85,7 +92,7 @@ retry:
index_buffer, index_size, index_bias,
min_index, max_index,
prim, start, count,
- instance_count, FALSE );
+ start_instance, instance_count, FALSE );
}
return ret;
@@ -94,27 +101,28 @@ retry:
static enum pipe_error
retry_draw_arrays( struct svga_context *svga,
- unsigned prim,
- unsigned start,
- unsigned count,
- unsigned instance_count,
+ unsigned prim, unsigned start, unsigned count,
+ unsigned start_instance, unsigned instance_count,
boolean do_retry )
{
enum pipe_error ret;
- svga_hwtnl_set_unfilled( svga->hwtnl,
- svga->curr.rast->hw_unfilled );
-
- svga_hwtnl_set_flatshade( svga->hwtnl,
- svga->curr.rast->templ.flatshade,
- svga->curr.rast->templ.flatshade_first );
+ svga_hwtnl_set_fillmode(svga->hwtnl, svga->curr.rast->hw_fillmode);
ret = svga_update_state( svga, SVGA_STATE_HW_DRAW );
if (ret != PIPE_OK)
goto retry;
- ret = svga_hwtnl_draw_arrays( svga->hwtnl, prim,
- start, count );
+ /** determine if flatshade is to be used after svga_update_state()
+ * in case the fragment shader is changed.
+ */
+ svga_hwtnl_set_flatshade(svga->hwtnl,
+ svga->curr.rast->templ.flatshade ||
+ svga->state.hw_draw.fs->uses_flat_interp,
+ svga->curr.rast->templ.flatshade_first);
+
+ ret = svga_hwtnl_draw_arrays(svga->hwtnl, prim, start, count,
+ start_instance, instance_count);
if (ret != PIPE_OK)
goto retry;
@@ -125,18 +133,41 @@ retry:
{
svga_context_flush( svga, NULL );
- return retry_draw_arrays( svga,
- prim,
- start,
- count,
- instance_count,
- FALSE );
+ return retry_draw_arrays(svga, prim, start, count,
+ start_instance, instance_count,
+ FALSE );
}
return ret;
}
+/**
+ * Determine if we need to implement primitive restart with a fallback
+ * path which breaks the original primitive into sub-primitive at the
+ * restart indexes.
+ */
+static boolean
+need_fallback_prim_restart(const struct svga_context *svga,
+ const struct pipe_draw_info *info)
+{
+ if (info->primitive_restart && info->indexed) {
+ if (!svga_have_vgpu10(svga))
+ return TRUE;
+ else if (!svga->state.sw.need_swtnl) {
+ if (svga->curr.ib.index_size == 1)
+ return TRUE; /* no device support for 1-byte indexes */
+ else if (svga->curr.ib.index_size == 2)
+ return info->restart_index != 0xffff;
+ else
+ return info->restart_index != 0xffffffff;
+ }
+ }
+
+ return FALSE;
+}
+
+
static void
svga_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
{
@@ -148,7 +179,8 @@ svga_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
svga->num_draw_calls++; /* for SVGA_QUERY_DRAW_CALLS */
- if (!u_trim_pipe_prim( info->mode, &count ))
+ if (u_reduced_prim(info->mode) == PIPE_PRIM_TRIANGLES &&
+ svga->curr.rast->templ.cull_face == PIPE_FACE_FRONT_AND_BACK)
return;
/*
@@ -165,6 +197,17 @@ svga_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
svga->dirty |= SVGA_NEW_REDUCED_PRIMITIVE;
}
+ if (need_fallback_prim_restart(svga, info)) {
+ enum pipe_error r;
+ r = util_draw_vbo_without_prim_restart(pipe, &svga->curr.ib, info);
+ assert(r == PIPE_OK);
+ (void) r;
+ return;
+ }
+
+ if (!u_trim_pipe_prim( info->mode, &count ))
+ return;
+
needed_swtnl = svga->state.sw.need_swtnl;
svga_update_state_retry( svga, SVGA_STATE_NEED_SWTNL );
@@ -208,17 +251,15 @@ svga_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
info->max_index,
info->mode,
info->start + offset,
- info->count,
+ count,
+ info->start_instance,
info->instance_count,
TRUE );
}
else {
- ret = retry_draw_arrays( svga,
- info->mode,
- info->start,
- info->count,
- info->instance_count,
- TRUE );
+ ret = retry_draw_arrays(svga, info->mode, info->start, count,
+ info->start_instance, info->instance_count,
+ TRUE);
}
}
generated by cgit v1.1 at 2025-08-04 06:05:05 +0000