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authorbunnei <bunneidev@gmail.com>2018-10-13 03:12:53 +0200
committerGitHub <noreply@github.com>2018-10-13 03:12:53 +0200
commit38b027aa81ff674b63d5b59dd264ee42ceae25ef (patch)
tree13395bf352f5aed1f1f9ead30decd8c62496e6bb /src/video_core/textures
parentMerge pull request #1481 from lioncash/typo (diff)
parentImplemented helper function to correctly calculate a texture's size (diff)
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Diffstat (limited to 'src/video_core/textures')
-rw-r--r--src/video_core/textures/decoders.cpp16
-rw-r--r--src/video_core/textures/decoders.h6
2 files changed, 22 insertions, 0 deletions
diff --git a/src/video_core/textures/decoders.cpp b/src/video_core/textures/decoders.cpp
index 3d5476e5d..0d2456b56 100644
--- a/src/video_core/textures/decoders.cpp
+++ b/src/video_core/textures/decoders.cpp
@@ -4,6 +4,7 @@
#include <cmath>
#include <cstring>
+#include "common/alignment.h"
#include "common/assert.h"
#include "core/memory.h"
#include "video_core/gpu.h"
@@ -199,4 +200,19 @@ std::vector<u8> DecodeTexture(const std::vector<u8>& texture_data, TextureFormat
return rgba_data;
}
+std::size_t CalculateSize(bool tiled, u32 bytes_per_pixel, u32 width, u32 height, u32 depth,
+ u32 block_height, u32 block_depth) {
+ if (tiled) {
+ const u32 gobs_in_x = 64 / bytes_per_pixel;
+ const u32 gobs_in_y = 8;
+ const u32 gobs_in_z = 1;
+ const u32 aligned_width = Common::AlignUp(width, gobs_in_x);
+ const u32 aligned_height = Common::AlignUp(height, gobs_in_y * block_height);
+ const u32 aligned_depth = Common::AlignUp(depth, gobs_in_z * block_depth);
+ return aligned_width * aligned_height * aligned_depth * bytes_per_pixel;
+ } else {
+ return width * height * depth * bytes_per_pixel;
+ }
+}
+
} // namespace Tegra::Texture
diff --git a/src/video_core/textures/decoders.h b/src/video_core/textures/decoders.h
index 1f7b731be..234d250af 100644
--- a/src/video_core/textures/decoders.h
+++ b/src/video_core/textures/decoders.h
@@ -32,4 +32,10 @@ void CopySwizzledData(u32 width, u32 height, u32 bytes_per_pixel, u32 out_bytes_
std::vector<u8> DecodeTexture(const std::vector<u8>& texture_data, TextureFormat format, u32 width,
u32 height);
+/**
+ * This function calculates the correct size of a texture depending if it's tiled or not.
+ */
+std::size_t CalculateSize(bool tiled, u32 bytes_per_pixel, u32 width, u32 height, u32 depth,
+ u32 block_height, u32 block_depth);
+
} // namespace Tegra::Texture