GetUnquantizedWeightVector

src/video_core/host_shaders/astc_decoder.comp

@@ -804,11 +804,7 @@ uint UnquantizeTexelWeight(EncodingData val) {
     return result;
 }
 
-uvec4 unquantized_texel_weights[VECTOR_ARRAY_SIZE];
-
 void UnquantizeTexelWeights(uvec2 size, bool is_dual_plane) {
-    const uint Ds = uint((block_dims.x * 0.5f + 1024) / (block_dims.x - 1));
-    const uint Dt = uint((block_dims.y * 0.5f + 1024) / (block_dims.y - 1));
     const uint num_planes = is_dual_plane ? 2 : 1;
     const uint area = size.x * size.y;
     const uint loop_count = min(result_index, area * num_planes);
@@ -818,58 +814,71 @@ void UnquantizeTexelWeights(uvec2 size, bool is_dual_plane) {
         result_vector[array_index][vector_index] =
             UnquantizeTexelWeight(GetEncodingFromVector(itr));
     }
-    for (uint plane = 0; plane < num_planes; ++plane) {
-        for (uint t = 0; t < block_dims.y; t++) {
-            for (uint s = 0; s < block_dims.x; s++) {
-                const uint cs = Ds * s;
-                const uint ct = Dt * t;
-                const uint gs = (cs * (size.x - 1) + 32) >> 6;
-                const uint gt = (ct * (size.y - 1) + 32) >> 6;
-                const uint js = gs >> 4;
-                const uint fs = gs & 0xF;
-                const uint jt = gt >> 4;
-                const uint ft = gt & 0x0F;
-                const uint w11 = (fs * ft + 8) >> 4;
-                const uint w10 = ft - w11;
-                const uint w01 = fs - w11;
-                const uint w00 = 16 - fs - ft + w11;
-                const uvec4 w = uvec4(w00, w01, w10, w11);
-                const uint v0 = jt * size.x + js;
-
-                uvec4 p = uvec4(0);
-
-#define VectorIndicesFromBase(offset_base)                                                         \
-    const uint offset = is_dual_plane ? 2 * offset_base + plane : offset_base;                     \
-    const uint array_index = offset / 4;                                                           \
+}
+
+uint GetUnquantizedTexelWieght(uint offset_base, uint plane, bool is_dual_plane) {
+    const uint offset = is_dual_plane ? 2 * offset_base + plane : offset_base;
+    const uint array_index = offset / 4;
     const uint vector_index = offset % 4;
+    return result_vector[array_index][vector_index];
+}
 
-                if (v0 < area) {
-                    const uint offset_base = v0;
-                    VectorIndicesFromBase(offset_base);
-                    p.x = result_vector[array_index][vector_index];
-                }
-                if ((v0 + 1) < (area)) {
-                    const uint offset_base = v0 + 1;
-                    VectorIndicesFromBase(offset_base);
-                    p.y = result_vector[array_index][vector_index];
-                }
-                if ((v0 + size.x) < (area)) {
-                    const uint offset_base = v0 + size.x;
-                    VectorIndicesFromBase(offset_base);
-                    p.z = result_vector[array_index][vector_index];
-                }
-                if ((v0 + size.x + 1) < (area)) {
-                    const uint offset_base = v0 + size.x + 1;
-                    VectorIndicesFromBase(offset_base);
-                    p.w = result_vector[array_index][vector_index];
-                }
-                const uint offset = (t * block_dims.x + s) + ARRAY_NUM_ELEMENTS * plane;
-                const uint array_index = offset / 4;
-                const uint vector_index = offset % 4;
-                unquantized_texel_weights[array_index][vector_index] = (uint(dot(p, w)) + 8) >> 4;
-            }
+uvec4 GetUnquantizedWeightVector(uint t, uint s, uvec2 size, uint plane_index, bool is_dual_plane) {
+    const uint Ds = uint((block_dims.x * 0.5f + 1024) / (block_dims.x - 1));
+    const uint Dt = uint((block_dims.y * 0.5f + 1024) / (block_dims.y - 1));
+    const uint area = size.x * size.y;
+
+    const uint cs = Ds * s;
+    const uint ct = Dt * t;
+    const uint gs = (cs * (size.x - 1) + 32) >> 6;
+    const uint gt = (ct * (size.y - 1) + 32) >> 6;
+    const uint js = gs >> 4;
+    const uint fs = gs & 0xF;
+    const uint jt = gt >> 4;
+    const uint ft = gt & 0x0F;
+    const uint w11 = (fs * ft + 8) >> 4;
+    const uint w10 = ft - w11;
+    const uint w01 = fs - w11;
+    const uint w00 = 16 - fs - ft + w11;
+    const uvec4 w = uvec4(w00, w01, w10, w11);
+    const uint v0 = jt * size.x + js;
+
+    uvec4 p0 = uvec4(0);
+    uvec4 p1 = uvec4(0);
+
+    if (v0 < area) {
+        const uint offset_base = v0;
+        p0.x = GetUnquantizedTexelWieght(offset_base, 0, is_dual_plane);
+        p1.x = GetUnquantizedTexelWieght(offset_base, 1, is_dual_plane);
+    }
+    if ((v0 + 1) < (area)) {
+        const uint offset_base = v0 + 1;
+        p0.y = GetUnquantizedTexelWieght(offset_base, 0, is_dual_plane);
+        p1.y = GetUnquantizedTexelWieght(offset_base, 1, is_dual_plane);
+    }
+    if ((v0 + size.x) < (area)) {
+        const uint offset_base = v0 + size.x;
+        p0.z = GetUnquantizedTexelWieght(offset_base, 0, is_dual_plane);
+        p1.z = GetUnquantizedTexelWieght(offset_base, 1, is_dual_plane);
+    }
+    if ((v0 + size.x + 1) < (area)) {
+        const uint offset_base = v0 + size.x + 1;
+        p0.w = GetUnquantizedTexelWieght(offset_base, 0, is_dual_plane);
+        p1.w = GetUnquantizedTexelWieght(offset_base, 1, is_dual_plane);
+    }
+
+    const uint primary_weight = (uint(dot(p0, w)) + 8) >> 4;
+
+    uvec4 weight_vec = uvec4(primary_weight);
+
+    if (is_dual_plane) {
+        const uint secondary_weight = (uint(dot(p1, w)) + 8) >> 4;
+        for (uint c = 0; c < 4; c++) {
+            const bool is_secondary = ((plane_index + 1u) & 3u) == c;
+            weight_vec[c] = is_secondary ? secondary_weight : primary_weight;
         }
     }
+    return weight_vec;
 }
 
 int FindLayout(uint mode) {
@@ -1155,25 +1164,10 @@ void DecompressBlock(ivec3 coord) {
             }
             const uvec4 C0 = ReplicateByteTo16(endpoints0[local_partition]);
             const uvec4 C1 = ReplicateByteTo16(endpoints1[local_partition]);
-            const uint weight_offset = (j * block_dims.x + i);
-            const uint array_index = weight_offset / 4;
-            const uint vector_index = weight_offset % 4;
-            const uint primary_weight = unquantized_texel_weights[array_index][vector_index];
-            uvec4 weight_vec = uvec4(primary_weight);
-            if (dual_plane) {
-                const uint secondary_weight_offset = (j * block_dims.x + i) + ARRAY_NUM_ELEMENTS;
-                const uint secondary_array_index = secondary_weight_offset / 4;
-                const uint secondary_vector_index = secondary_weight_offset % 4;
-                const uint secondary_weight =
-                    unquantized_texel_weights[secondary_array_index][secondary_vector_index];
-                for (uint c = 0; c < 4; c++) {
-                    const bool is_secondary = ((plane_index + 1u) & 3u) == c;
-                    weight_vec[c] = is_secondary ? secondary_weight : primary_weight;
-                }
-            }
+            const uvec4 weight_vec = GetUnquantizedWeightVector(j, i, size_params, plane_index, dual_plane);
             const vec4 Cf =
                 vec4((C0 * (uvec4(64) - weight_vec) + C1 * weight_vec + uvec4(32)) / 64);
-            const vec4 p = (Cf / 65535.0);
+            const vec4 p = (Cf / 65535.0f);
             imageStore(dest_image, coord + ivec3(i, j, 0), p.gbar);
         }
     }