GPU: Add HQ normals workaround.

This change makes it possible for platforms to only support high quality
normal rendering. This is part of {T82856} where current AMD drivers
running on the polaris architecture does not support the low quality
setting due to a driver bug.

In a next commit the work around will be enabled.

4 files changed, 12 insertions, 6 deletions

diff --git a/source/blender/draw/intern/draw_cache_extract_mesh.c b/source/blender/draw/intern/draw_cache_extract_mesh.c
index 780e4fdea7c..6eeb3c7abdc 100644
--- a/source/blender/draw/intern/draw_cache_extract_mesh.c
+++ b/source/blender/draw/intern/draw_cache_extract_mesh.c
@@ -4543,7 +4543,8 @@ static void extract_task_create(TaskPool *task_pool,
                                 int32_t *task_counter)
 {
   BLI_assert(scene != NULL);
-  const bool do_hq_normals = (scene->r.perf_flag & SCE_PERF_HQ_NORMALS) != 0;
+  const bool do_hq_normals = (scene->r.perf_flag & SCE_PERF_HQ_NORMALS) != 0 ||
+                             GPU_use_hq_normals_workaround();
   if (do_hq_normals && (extract == &extract_lnor)) {
     extract = &extract_lnor_hq;
   }
diff --git a/source/blender/draw/intern/draw_cache_impl_curve.c b/source/blender/draw/intern/draw_cache_impl_curve.c
index 4a8c19f0839..8da40ba95f2 100644
--- a/source/blender/draw/intern/draw_cache_impl_curve.c
+++ b/source/blender/draw/intern/draw_cache_impl_curve.c
@@ -36,6 +36,7 @@
 #include "BKE_font.h"
 
 #include "GPU_batch.h"
+#include "GPU_extensions.h"
 #include "GPU_material.h"
 #include "GPU_texture.h"
 
@@ -633,11 +634,11 @@ static void curve_create_edit_curves_nor(CurveRenderData *rdata,
                                          GPUVertBuf *vbo_curves_nor,
                                          const Scene *scene)
 {
-  const bool do_hq_normals = (scene->r.perf_flag & SCE_PERF_HQ_NORMALS) != 0;
+  const bool do_hq_normals = (scene->r.perf_flag & SCE_PERF_HQ_NORMALS) != 0 ||
+                             GPU_use_hq_normals_workaround();
 
   static GPUVertFormat format = {0};
   static GPUVertFormat format_hq = {0};
-  /* TODO(jeroen): add support for high quality normals */
   static struct {
     uint pos, nor, tan, rad;
     uint pos_hq, nor_hq, tan_hq, rad_hq;
diff --git a/source/blender/draw/intern/draw_cache_impl_displist.c b/source/blender/draw/intern/draw_cache_impl_displist.c
index ccaedc09444..b8e5d1a09e7 100644
--- a/source/blender/draw/intern/draw_cache_impl_displist.c
+++ b/source/blender/draw/intern/draw_cache_impl_displist.c
@@ -177,7 +177,8 @@ static int displist_indexbufbuilder_tess_set(
 
 void DRW_displist_vertbuf_create_pos_and_nor(ListBase *lb, GPUVertBuf *vbo, const Scene *scene)
 {
-  const bool do_hq_normals = (scene->r.perf_flag & SCE_PERF_HQ_NORMALS) != 0;
+  const bool do_hq_normals = (scene->r.perf_flag & SCE_PERF_HQ_NORMALS) != 0 ||
+                             GPU_use_hq_normals_workaround();
 
   static GPUVertFormat format = {0};
   static GPUVertFormat format_hq = {0};
@@ -485,7 +486,8 @@ void DRW_displist_vertbuf_create_loop_pos_and_nor_and_uv_and_tan(ListBase *lb,
                                                                  GPUVertBuf *vbo_tan,
                                                                  const Scene *scene)
 {
-  const bool do_hq_normals = (scene->r.perf_flag & SCE_PERF_HQ_NORMALS) != 0;
+  const bool do_hq_normals = (scene->r.perf_flag & SCE_PERF_HQ_NORMALS) != 0 ||
+                             GPU_use_hq_normals_workaround();
 
   static GPUVertFormat format_pos_nor = {0};
   static GPUVertFormat format_pos_nor_hq = {0};
diff --git a/source/blender/draw/intern/draw_cache_impl_volume.c b/source/blender/draw/intern/draw_cache_impl_volume.c
index 64d6bbdd474..a2e343322e9 100644
--- a/source/blender/draw/intern/draw_cache_impl_volume.c
+++ b/source/blender/draw/intern/draw_cache_impl_volume.c
@@ -40,6 +40,7 @@
 #include "BKE_volume_render.h"
 
 #include "GPU_batch.h"
+#include "GPU_extensions.h"
 #include "GPU_texture.h"
 
 #include "DRW_render.h"
@@ -151,7 +152,8 @@ static void drw_volume_wireframe_cb(
   Scene *scene = data->scene;
   Volume *volume = data->volume;
   VolumeBatchCache *cache = volume->batch_cache;
-  const bool do_hq_normals = (scene->r.perf_flag & SCE_PERF_HQ_NORMALS) != 0;
+  const bool do_hq_normals = (scene->r.perf_flag & SCE_PERF_HQ_NORMALS) != 0 ||
+                             GPU_use_hq_normals_workaround();
 
   /* Create vertex buffer. */
   static GPUVertFormat format = {0};