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