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GPU: Added testcase for SSBO/Compute. 

Test case is a smaller step towards supporting Vulkan. Other
test cases rely on SSBOs as well so it is better to first satisfy
this step before handling the others.
This commit is contained in:
Jeroen Bakker 2023-02-02 14:11:43 +01:00
parent 49ad91b5ab
commit c1b85103fe
1 changed files with 42 additions and 0 deletions
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42
source/blender/gpu/tests/gpu_shader_test.cc
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@ -209,6 +209,48 @@ static void test_gpu_shader_compute_ibo()
}
GPU_TEST(gpu_shader_compute_ibo)
static void test_gpu_shader_compute_ssbo()
{
if (!GPU_compute_shader_support()) {
/* We can't test as a the platform does not support compute shaders. */
std::cout << "Skipping compute shader test: platform not supported";
return;
}
static constexpr uint SIZE = 128;
/* Build compute shader. */
GPUShader *shader = GPU_shader_create_from_info_name("gpu_compute_ibo_test");
EXPECT_NE(shader, nullptr);
GPU_shader_bind(shader);
/* Construct IBO. */
GPUStorageBuf *ssbo = GPU_storagebuf_create_ex(
SIZE * sizeof(uint32_t), nullptr, GPU_USAGE_DEVICE_ONLY, __func__);
GPU_storagebuf_bind(ssbo, GPU_shader_get_ssbo(shader, "out_indices"));
/* Dispatch compute task. */
GPU_compute_dispatch(shader, SIZE, 1, 1);
/* Check if compute has been done. */
GPU_memory_barrier(GPU_BARRIER_SHADER_STORAGE);
/* Download the index buffer. */
uint32_t data[SIZE];
GPU_storagebuf_read(ssbo, data);
for (int index = 0; index < SIZE; index++) {
uint32_t expected = index;
EXPECT_EQ(data[index], expected);
}
/* Cleanup. */
GPU_shader_unbind();
GPU_storagebuf_free(ssbo);
GPU_shader_free(shader);
}
GPU_TEST(gpu_shader_compute_ssbo)
static void test_gpu_shader_ssbo_binding()
{
if (!GPU_compute_shader_support()) {