diff options
Diffstat (limited to 'src/gallium/drivers/freedreno/ir3/ir3_gallium.c')
| -rw-r--r-- | src/gallium/drivers/freedreno/ir3/ir3_gallium.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/gallium/drivers/freedreno/ir3/ir3_gallium.c b/src/gallium/drivers/freedreno/ir3/ir3_gallium.c index 11a4dc78161..e5ea424b221 100644 --- a/src/gallium/drivers/freedreno/ir3/ir3_gallium.c +++ b/src/gallium/drivers/freedreno/ir3/ir3_gallium.c @@ -396,6 +396,54 @@ ir3_emit_immediates(struct fd_screen *screen, const struct ir3_shader_variant *v } } +static uint32_t +link_geometry_stages(const struct ir3_shader_variant *producer, + const struct ir3_shader_variant *consumer, + uint32_t *locs) +{ + uint32_t num_loc = 0; + + nir_foreach_variable(in_var, &consumer->shader->nir->inputs) { + nir_foreach_variable(out_var, &producer->shader->nir->outputs) { + if (in_var->data.location == out_var->data.location) { + locs[in_var->data.driver_location] = + producer->shader->output_loc[out_var->data.driver_location] * 4; + + debug_assert(num_loc <= in_var->data.driver_location + 1); + num_loc = in_var->data.driver_location + 1; + } + } + } + + return num_loc; +} + +void +ir3_emit_link_map(struct fd_screen *screen, + const struct ir3_shader_variant *producer, + const struct ir3_shader_variant *v, struct fd_ringbuffer *ring) +{ + const struct ir3_const_state *const_state = &v->shader->const_state; + uint32_t base = const_state->offsets.primitive_map; + uint32_t patch_locs[MAX_VARYING] = { }, num_loc; + + num_loc = link_geometry_stages(producer, v, patch_locs); + + int size = DIV_ROUND_UP(num_loc, 4); + + /* truncate size to avoid writing constants that shader + * does not use: + */ + size = MIN2(size + base, v->constlen) - base; + + /* convert out of vec4: */ + base *= 4; + size *= 4; + + if (size > 0) + emit_const(screen, ring, v, base, 0, size, patch_locs, NULL); +} + /* emit stream-out buffers: */ static void emit_tfbos(struct fd_context *ctx, const struct ir3_shader_variant *v, |