| #!amber |
| # Copyright 2021 Google LLC. |
| # Copyright 2021 The Khronos Group Inc. |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| # Write to an invalid sample number test |
| # Sample Count: 32 |
| # Tested Sample Min: -256 |
| # Tested Sample Max: 256 |
| # Description: All writes to invalid sample numbers should be discarded. |
| |
| DEVICE_FEATURE shaderStorageImageMultisample |
| |
| SHADER compute compute_shader GLSL |
| #version 430 |
| |
| layout(local_size_x = 16, local_size_y = 16) in; |
| |
| uniform layout(set=0, binding=0, rgba8) image2DMS texture; |
| uniform layout(set=0, binding=1, rgba8) image2D result; |
| |
| |
| void main() |
| { |
| int numSamples = 32; |
| int distortion = 256; |
| vec4 ndxColors[4]; |
| |
| ndxColors[0] = vec4(1.0, 0.0, 0.0, 1.0); |
| ndxColors[1] = vec4(0.0, 1.0, 0.0, 1.0); |
| ndxColors[2] = vec4(0.0, 0.0, 1.0, 1.0); |
| ndxColors[3] = vec4(0.0, 1.0, 1.0, 1.0); |
| |
| ivec2 uv = ivec2(gl_GlobalInvocationID.xy); |
| |
| // Initialize texture |
| for (int s = -distortion; s < distortion; s++) |
| { |
| vec4 color = vec4(1); |
| |
| if (s >= 0 && s < numSamples) color = ndxColors[s % 4]; |
| |
| imageStore(texture, uv, s, color); |
| } |
| |
| memoryBarrierImage(); |
| barrier(); |
| |
| // Verification |
| bool imageOk = true; |
| |
| for (int s = 0; s < numSamples; s++) |
| { |
| vec4 color = vec4(1); |
| |
| if (s >= 0 && s < numSamples) color = ndxColors[s % 4]; |
| |
| if (imageLoad(texture, uv, s) != color) |
| imageOk = false; |
| } |
| |
| vec4 resultColor = imageOk ? vec4(0, 1, 0, 1) : vec4(1, 0, 0, 1); |
| imageStore(result, uv, resultColor); |
| } |
| END |
| |
| IMAGE texture FORMAT R8G8B8A8_UNORM DIM_2D WIDTH 16 HEIGHT 16 SAMPLES 32 |
| IMAGE result FORMAT R8G8B8A8_UNORM DIM_2D WIDTH 16 HEIGHT 16 FILL 0 |
| |
| PIPELINE compute pipeline |
| ATTACH compute_shader |
| BIND BUFFER texture AS storage_image DESCRIPTOR_SET 0 BINDING 0 |
| BIND BUFFER result AS storage_image DESCRIPTOR_SET 0 BINDING 1 |
| END |
| |
| RUN pipeline 1 1 1 |
| |
| EXPECT result IDX 0 0 SIZE 16 16 EQ_RGBA 0 255 0 255 |