nx2: read texture handles that hold a header byte offset

Switch Sports' scenery shaders take their 64-bit texture handles from a uniform
register, and the texture part of those handles is the header's byte offset in the
pool (index * 32), not its index: 0x96e46000 names header 8960 (a 640x152 2D
texture), while the plain reading, 286720, runs far past the 33067-entry pool. Eden
skipped them at draw time (null view) and built the shaders for a garbage header, so
the island's ground, cliffs and buildings drew black.

When a handle's index falls past the pool but index / 32 lands inside it, take that
header, both when building the shader and when binding the view. Handles that
already resolve keep their meaning.

1 files changed, 3 insertions, 2 deletions

diff --git a/src/video_core/shader_environment.cpp b/src/video_core/shader_environment.cpp
index 9d189ad4f0..532b1f97f4 100644
--- a/src/video_core/shader_environment.cpp
+++ b/src/video_core/shader_environment.cpp
@@ -315,8 +315,9 @@ std::optional<u64> GenericEnvironment::TryFindSize() {
 Tegra::Texture::TICEntry GenericEnvironment::ReadTextureInfo(GPUVAddr tic_addr, u32 tic_limit,
                                                              bool via_header_index, u32 raw) {
     const auto handle{Tegra::Texture::TexturePair(raw, via_header_index)};
-    ASSERT(handle.first <= tic_limit);
-    const GPUVAddr descriptor_addr{tic_addr + handle.first * sizeof(Tegra::Texture::TICEntry)};
+    const u32 index{Tegra::Texture::TextureHeaderIndex(handle.first, tic_limit)};
+    ASSERT(index <= tic_limit);
+    const GPUVAddr descriptor_addr{tic_addr + index * sizeof(Tegra::Texture::TICEntry)};
     Tegra::Texture::TICEntry entry;
     gpu_memory->ReadBlock(descriptor_addr, &entry, sizeof(entry));
     return entry;