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freedreno/ir3: Add tessellation field to shader key 

Whether we're tessellating and which primitives the TES outputs
affects the entire pipeline so let's add a field to the key to track
that.

Signed-off-by: Kristian H. Kristensen <hoegsberg@google.com>
Acked-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Kristian H. Kristensen 2019-10-22 17:16:09 -07:00
parent 77b96b843e
commit 8621fbc37b
3 changed files with 51 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/freedreno/ir3/ir3_nir.c
View File

@ -104,7 +104,7 @@ ir3_key_lowers_nir(const struct ir3_shader_key *key)
key->vsaturate_s | key->vsaturate_t | key->vsaturate_r |
key->ucp_enables | key->color_two_side |
key->fclamp_color | key->vclamp_color |
key->has_gs;
key->tessellation | key->has_gs;
}
#define OPT(nir, pass, ...) ({ \

33
src/freedreno/ir3/ir3_shader.h
View File

@ -249,6 +249,17 @@ struct ir3_shader_key {
unsigned rasterflat : 1;
unsigned fclamp_color : 1;
/* Indicates that this is a tessellation pipeline which requires a
* whole different kind of vertex shader. In case of
* tessellation, this field also tells us which kind of output
* topology the TES uses, which the TCS needs to know.
*/
#define IR3_TESS_NONE 0
#define IR3_TESS_TRIANGLES 1
#define IR3_TESS_QUADS 2
#define IR3_TESS_ISOLINES 3
unsigned tessellation : 2;
unsigned has_gs : 1;
};
uint32_t global;
@ -348,6 +359,7 @@ ir3_normalize_key(struct ir3_shader_key *key, gl_shader_stage type)
key->vastc_srgb = 0;
key->vsamples = 0;
key->has_gs = false; /* FS doesn't care */
key->tessellation = IR3_TESS_NONE;
}
break;
case MESA_SHADER_VERTEX:
@ -362,6 +374,27 @@ ir3_normalize_key(struct ir3_shader_key *key, gl_shader_stage type)
key->fastc_srgb = 0;
key->fsamples = 0;
}
/* VS and GS only care about whether or not we're tessellating. */
key->tessellation = !!key->tessellation;
break;
case MESA_SHADER_TESS_CTRL:
case MESA_SHADER_TESS_EVAL:
key->color_two_side = false;
key->half_precision = false;
key->rasterflat = false;
if (key->has_per_samp) {
key->fsaturate_s = 0;
key->fsaturate_t = 0;
key->fsaturate_r = 0;
key->fastc_srgb = 0;
key->fsamples = 0;
key->vsaturate_s = 0;
key->vsaturate_t = 0;
key->vsaturate_r = 0;
key->vastc_srgb = 0;
key->vsamples = 0;
}
break;
default:
/* TODO */

17
src/gallium/drivers/freedreno/a6xx/fd6_draw.c
View File

@ -157,6 +157,23 @@ fd6_draw_vbo(struct fd_context *ctx, const struct pipe_draw_info *info,
.sprite_coord_mode = ctx->rasterizer->sprite_coord_mode,
};
if (info->mode == PIPE_PRIM_PATCHES) {
shader_info *ds_info = &emit.key.ds->nir->info;
switch (ds_info->tess.primitive_mode) {
case GL_ISOLINES:
emit.key.key.tessellation = IR3_TESS_ISOLINES;
break;
case GL_TRIANGLES:
emit.key.key.tessellation = IR3_TESS_TRIANGLES;
break;
case GL_QUADS:
emit.key.key.tessellation = IR3_TESS_QUADS;
break;
default:
unreachable("bad tessmode");
}
}
if (emit.key.gs)
emit.key.key.has_gs = true;