Mesa (master): v3d: add helper to check if format supports TLB resolve

[GitLab Mirror]

Module: Mesa
Branch: master
Commit: 9eb2517a88e3b48cd84fa4b0c50112dc6de2da06
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=9eb2517a88e3b48cd84fa4b0c50112dc6de2da06

Author: Juan A. Suarez Romero <jasuarez at igalia.com>
Date:   Fri Nov 27 14:17:59 2020 +0100

v3d: add helper to check if format supports TLB resolve

It checks if the TLB can perform multisample resolve for the specified
format.

v1:
 - Fix commit title (Iago)

v2:
 - Fix identation (Iago)
 - Fix prototype style (Iago)

Reviewed-by: Iago Toral Quiroga <itoral at igalia.com>
Signed-off-by: Juan A. Suarez Romero <jasuarez at igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7816>

---

 src/gallium/drivers/v3d/v3d_context.h |  2 ++
 src/gallium/drivers/v3d/v3d_formats.c | 25 +++++++++++++++++++++++++
 2 files changed, 27 insertions(+)

diff --git a/src/gallium/drivers/v3d/v3d_context.h b/src/gallium/drivers/v3d/v3d_context.h
index f2c5dadc9e9..a5275c41243 100644
--- a/src/gallium/drivers/v3d/v3d_context.h
+++ b/src/gallium/drivers/v3d/v3d_context.h
@@ -686,6 +686,8 @@ void v3d_get_internal_type_bpp_for_output_format(const struct v3d_device_info *d
                                                  uint32_t *bpp);
 bool v3d_tfu_supports_tex_format(const struct v3d_device_info *devinfo,
                                  uint32_t tex_format);
+bool v3d_format_supports_tlb_msaa_resolve(const struct v3d_device_info *devinfo,
+                                          enum pipe_format f);
 
 void v3d_init_query_functions(struct v3d_context *v3d);
 void v3d_blit(struct pipe_context *pctx, const struct pipe_blit_info *blit_info);
diff --git a/src/gallium/drivers/v3d/v3d_formats.c b/src/gallium/drivers/v3d/v3d_formats.c
index 5bd8db0dbd4..df1c8a5cb3e 100644
--- a/src/gallium/drivers/v3d/v3d_formats.c
+++ b/src/gallium/drivers/v3d/v3d_formats.c
@@ -37,6 +37,10 @@
 #include "v3d_context.h"
 #include "v3d_format_table.h"
 
+/* The format internal types are the same across V3D versions */
+#define V3D_VERSION 33
+#include "broadcom/cle/v3dx_pack.h"
+
 static const struct v3d_format *
 get_format(const struct v3d_device_info *devinfo, enum pipe_format f)
 {
@@ -153,3 +157,24 @@ v3d_tfu_supports_tex_format(const struct v3d_device_info *devinfo,
                 return v3d33_tfu_supports_tex_format(tex_format);
         }
 }
+
+bool
+v3d_format_supports_tlb_msaa_resolve(const struct v3d_device_info *devinfo,
+                                     enum pipe_format f)
+{
+        uint32_t internal_type;
+        uint32_t internal_bpp;
+
+        const struct v3d_format *vf = get_format(devinfo, f);
+
+        if (!vf)
+                return false;
+
+        v3d_get_internal_type_bpp_for_output_format(devinfo,
+                                                    vf->rt_type,
+                                                    &internal_type,
+                                                    &internal_bpp);
+
+        return internal_type == V3D_INTERNAL_TYPE_8 ||
+               internal_type == V3D_INTERNAL_TYPE_16F;
+}