iris: move existing image format fallback as a helper function

[mesa.git] / src / gallium / drivers / iris / iris_state.c

diff --git a/src/gallium/drivers/iris/iris_state.c b/src/gallium/drivers/iris/iris_state.c
index eab934fb73895ba0c4b43d458579a6929df1ede8..170562f926f618a443ffa15947521e8b2b6a6916 100644 (file)
--- a/src/gallium/drivers/iris/iris_state.c
+++ b/src/gallium/drivers/iris/iris_state.c
@@ -2680,7 +2680,6 @@ iris_set_shader_images(struct pipe_context *ctx,
 {
    struct iris_context *ice = (struct iris_context *) ctx;
    struct iris_screen *screen = (struct iris_screen *)ctx->screen;
-   const struct gen_device_info *devinfo = &screen->devinfo;
    gl_shader_stage stage = stage_from_pipe(p_stage);
    struct iris_shader_state *shs = &ice->state.shaders[stage];
 #if GEN_GEN == 8
@@ -2704,25 +2703,7 @@ iris_set_shader_images(struct pipe_context *ctx,
          res->bind_history |= PIPE_BIND_SHADER_IMAGE;
          res->bind_stages |= 1 << stage;
 
-         isl_surf_usage_flags_t usage = ISL_SURF_USAGE_STORAGE_BIT;
-         enum isl_format isl_fmt =
-            iris_format_for_usage(devinfo, img->format, usage).fmt;
-
-         bool untyped_fallback = false;
-
-         if (img->shader_access & PIPE_IMAGE_ACCESS_READ) {
-            /* On Gen8, try to use typed surfaces reads (which support a
-             * limited number of formats), and if not possible, fall back
-             * to untyped reads.
-             */
-            untyped_fallback = GEN_GEN == 8 &&
-               !isl_has_matching_typed_storage_image_format(devinfo, isl_fmt);
-
-            if (untyped_fallback)
-               isl_fmt = ISL_FORMAT_RAW;
-            else
-               isl_fmt = isl_lower_storage_image_format(devinfo, isl_fmt);
-         }
+         enum isl_format isl_fmt = iris_image_view_get_format(ice, img);
 
          alloc_surface_states(&iv->surface_state, 1 << ISL_AUX_USAGE_NONE);
          iv->surface_state.bo_address = res->bo->gtt_offset;
@@ -2737,10 +2718,11 @@ iris_set_shader_images(struct pipe_context *ctx,
                .base_array_layer = img->u.tex.first_layer,
                .array_len = img->u.tex.last_layer - img->u.tex.first_layer + 1,
                .swizzle = ISL_SWIZZLE_IDENTITY,
-               .usage = usage,
+               .usage = ISL_SURF_USAGE_STORAGE_BIT,
             };
 
-            if (untyped_fallback) {
+            /* If using untyped fallback. */
+            if (isl_fmt == ISL_FORMAT_RAW) {
                fill_buffer_surface_state(&screen->isl_dev, res, map,
                                          isl_fmt, ISL_SWIZZLE_IDENTITY,
                                          0, res->bo->size);