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-rw-r--r--src/video_core/host_shaders/astc_decoder.comp77
1 files changed, 31 insertions, 46 deletions
diff --git a/src/video_core/host_shaders/astc_decoder.comp b/src/video_core/host_shaders/astc_decoder.comp
index 63b3d9f44..f497c4d17 100644
--- a/src/video_core/host_shaders/astc_decoder.comp
+++ b/src/video_core/host_shaders/astc_decoder.comp
@@ -36,12 +36,6 @@ struct EncodingData {
uint data;
};
-struct TexelWeightParams {
- uvec2 size;
- uint max_weight;
- bool dual_plane;
-};
-
layout(binding = BINDING_INPUT_BUFFER, std430) readonly restrict buffer InputBufferU32 {
uvec4 astc_data[];
};
@@ -1026,59 +1020,50 @@ bool IsError(uint mode) {
return false;
}
-TexelWeightParams DecodeBlockInfo(uint mode) {
- TexelWeightParams params = TexelWeightParams(uvec2(0), 0, false);
+uvec2 DecodeBlockSize(uint mode) {
uint A, B;
- uint mode_layout = FindLayout(mode);
- switch (mode_layout) {
+ switch (FindLayout(mode)) {
case 0:
A = (mode >> 5) & 0x3;
B = (mode >> 7) & 0x3;
- params.size = uvec2(B + 4, A + 2);
- break;
+ return uvec2(B + 4, A + 2);
case 1:
A = (mode >> 5) & 0x3;
B = (mode >> 7) & 0x3;
- params.size = uvec2(B + 8, A + 2);
- break;
+ return uvec2(B + 8, A + 2);
case 2:
A = (mode >> 5) & 0x3;
B = (mode >> 7) & 0x3;
- params.size = uvec2(A + 2, B + 8);
- break;
+ return uvec2(A + 2, B + 8);
case 3:
A = (mode >> 5) & 0x3;
B = (mode >> 7) & 0x1;
- params.size = uvec2(A + 2, B + 6);
- break;
+ return uvec2(A + 2, B + 6);
case 4:
A = (mode >> 5) & 0x3;
B = (mode >> 7) & 0x1;
- params.size = uvec2(B + 2, A + 2);
- break;
+ return uvec2(B + 2, A + 2);
case 5:
A = (mode >> 5) & 0x3;
- params.size = uvec2(12, A + 2);
- break;
+ return uvec2(12, A + 2);
case 6:
A = (mode >> 5) & 0x3;
- params.size = uvec2(A + 2, 12);
- break;
+ return uvec2(A + 2, 12);
case 7:
- params.size = uvec2(6, 10);
- break;
+ return uvec2(6, 10);
case 8:
- params.size = uvec2(10, 6);
- break;
+ return uvec2(10, 6);
case 9:
A = (mode >> 5) & 0x3;
B = (mode >> 9) & 0x3;
- params.size = uvec2(A + 6, B + 6);
- break;
+ return uvec2(A + 6, B + 6);
default:
- break;
+ return uvec2(0);
}
- params.dual_plane = (mode_layout != 9) && ((mode & 0x400) != 0);
+}
+
+uint DecodeMaxWeight(uint mode) {
+ const uint mode_layout = FindLayout(mode);
uint weight_index = (mode & 0x10) != 0 ? 1 : 0;
if (mode_layout < 5) {
weight_index |= (mode & 0x3) << 1;
@@ -1089,14 +1074,11 @@ TexelWeightParams DecodeBlockInfo(uint mode) {
if ((mode_layout != 9) && ((mode & 0x200) != 0)) {
weight_index += 6;
}
- params.max_weight = weight_index + 1;
-
- return params;
+ return weight_index + 1;
}
void DecompressBlock(ivec3 coord) {
uint mode = StreamBits(11);
- const TexelWeightParams params = DecodeBlockInfo(mode);
if (IsError(mode)) {
FillError(coord);
return;
@@ -1106,12 +1088,15 @@ void DecompressBlock(ivec3 coord) {
FillVoidExtentLDR(coord);
return;
}
- if ((params.size.x > block_dims.x) || (params.size.y > block_dims.y)) {
+ const uvec2 size_params = DecodeBlockSize(mode);
+ if ((size_params.x > block_dims.x) || (size_params.y > block_dims.y)) {
FillError(coord);
return;
}
const uint num_partitions = StreamBits(2) + 1;
- if (num_partitions > 4 || (num_partitions == 4 && params.dual_plane)) {
+ const uint mode_layout = FindLayout(mode);
+ const bool dual_plane = (mode_layout != 9) && ((mode & 0x400) != 0);
+ if (num_partitions > 4 || (num_partitions == 4 && dual_plane)) {
FillError(coord);
return;
}
@@ -1127,7 +1112,8 @@ void DecompressBlock(ivec3 coord) {
base_cem = StreamBits(6);
}
const uint base_mode = base_cem & 3;
- const uint weight_bits = GetPackedBitSize(params.size, params.dual_plane, params.max_weight);
+ const uint max_weight = DecodeMaxWeight(mode);
+ const uint weight_bits = GetPackedBitSize(size_params, dual_plane, max_weight);
uint remaining_bits = 128 - weight_bits - total_bitsread;
uint extra_cem_bits = 0;
if (base_mode > 0) {
@@ -1146,7 +1132,7 @@ void DecompressBlock(ivec3 coord) {
}
}
remaining_bits -= extra_cem_bits;
- const uint plane_selector_bits = params.dual_plane ? 2 : 0;
+ const uint plane_selector_bits = dual_plane ? 2 : 0;
remaining_bits -= plane_selector_bits;
if (remaining_bits > 128) {
// Bad data, more remaining bits than 4 bytes
@@ -1198,7 +1184,6 @@ void DecompressBlock(ivec3 coord) {
// This decode phase should at most push 32 elements into the vector
result_vector_max_index = 32;
- // uvec4 color_values[8];
uint colvals_index = 0;
DecodeColorValues(color_endpoint_mode, num_partitions, color_data_bits);
for (uint i = 0; i < num_partitions; i++) {
@@ -1226,13 +1211,13 @@ void DecompressBlock(ivec3 coord) {
result_limit_reached = false;
// The limit for the Unquantize phase, avoids decoding more data than needed.
- result_vector_max_index = params.size.x * params.size.y;
- if (params.dual_plane) {
+ result_vector_max_index = size_params.x * size_params.y;
+ if (dual_plane) {
result_vector_max_index *= 2;
}
- DecodeIntegerSequence(params.max_weight, GetNumWeightValues(params.size, params.dual_plane));
+ DecodeIntegerSequence(max_weight, GetNumWeightValues(size_params, dual_plane));
- UnquantizeTexelWeights(params.size, params.dual_plane);
+ UnquantizeTexelWeights(size_params, dual_plane);
for (uint j = 0; j < block_dims.y; j++) {
for (uint i = 0; i < block_dims.x; i++) {
uint local_partition = 0;
@@ -1247,7 +1232,7 @@ void DecompressBlock(ivec3 coord) {
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 (params.dual_plane) {
+ 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;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 12:26:57 +0100