From 8a3411b417f76db786b1d3cfffbd90926abb20ca Mon Sep 17 00:00:00 2001
From: Fernando Sahmkow <fsahmkow27@gmail.com>
Date: Sun, 27 Mar 2022 05:05:57 +0200
Subject: Engines: Implement Accelerate DMA Texture.

---
 src/video_core/texture_cache/image_info.cpp | 45 +++++++++++++++++++++++++++--
 1 file changed, 43 insertions(+), 2 deletions(-)

(limited to 'src/video_core/texture_cache/image_info.cpp')

diff --git a/src/video_core/texture_cache/image_info.cpp b/src/video_core/texture_cache/image_info.cpp
index e9100091e..a1296b574 100644
--- a/src/video_core/texture_cache/image_info.cpp
+++ b/src/video_core/texture_cache/image_info.cpp
@@ -216,10 +216,51 @@ ImageInfo::ImageInfo(const Tegra::Engines::Fermi2D::Surface& config) noexcept {
             .height = config.height,
             .depth = 1,
         };
-        rescaleable = block.depth == 0;
-        rescaleable &= size.height > 256;
+        rescaleable = block.depth == 0 && size.height > 256;
         downscaleable = size.height > 512;
     }
 }
 
+static PixelFormat ByteSizeToFormat(u32 bytes_per_pixel) {
+    switch (bytes_per_pixel) {
+    case 1:
+        return PixelFormat::R8_UINT;
+    case 2:
+        return PixelFormat::R8G8_UINT;
+    case 4:
+        return PixelFormat::A8B8G8R8_UINT;
+    case 8:
+        return PixelFormat::R16G16B16A16_UINT;
+    case 16:
+        return PixelFormat::R32G32B32A32_UINT;
+    default:
+        UNIMPLEMENTED();
+        return PixelFormat::Invalid;
+    }
+}
+
+ImageInfo::ImageInfo(const Tegra::DMA::ImageOperand& config) noexcept {
+    const u32 bytes_per_pixel = config.bytes_per_pixel;
+    format = ByteSizeToFormat(bytes_per_pixel);
+    type = config.params.block_size.depth > 0 ? ImageType::e3D : ImageType::e2D;
+    num_samples = 1;
+    block = Extent3D{
+        .width = config.params.block_size.width,
+        .height = config.params.block_size.height,
+        .depth = config.params.block_size.depth,
+    };
+    size = Extent3D{
+        .width = config.params.width,
+        .height = config.params.height,
+        .depth = config.params.depth,
+    };
+    tile_width_spacing = 0;
+    resources.levels = 1;
+    resources.layers = 1;
+    layer_stride = CalculateLayerStride(*this);
+    maybe_unaligned_layer_stride = CalculateLayerSize(*this);
+    rescaleable = block.depth == 0 && size.height > 256;
+    downscaleable = size.height > 512;
+}
+
 } // namespace VideoCommon
-- 
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