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/* Apache License, Version 2.0 */
#include "testing/testing.h"
#include "MEM_guardedalloc.h"
#include "GPU_index_buffer.h"
#include "gpu_testing.hh"
namespace blender::gpu::tests {
static void test_gpu_index_buffer_subbuilders()
{
const uint num_subbuilders = 10;
const uint verts_per_subbuilders = 100;
const uint vertex_len = num_subbuilders * verts_per_subbuilders;
GPUIndexBufBuilder builder;
GPU_indexbuf_init(&builder, GPU_PRIM_POINTS, vertex_len, vertex_len);
GPUIndexBufBuilder subbuilders[num_subbuilders];
for (int subbuilder_index = 0; subbuilder_index < num_subbuilders; subbuilder_index++) {
memcpy(&subbuilders[subbuilder_index], &builder, sizeof(builder));
}
for (int subbuilder_index = 0; subbuilder_index < num_subbuilders; subbuilder_index++) {
GPUIndexBufBuilder &subbuilder = subbuilders[subbuilder_index];
for (int subbuilder_vert_index = 0; subbuilder_vert_index < verts_per_subbuilders;
subbuilder_vert_index++) {
int vert_index_to_update = subbuilder_index * verts_per_subbuilders + subbuilder_vert_index;
GPU_indexbuf_set_point_vert(&subbuilder, vert_index_to_update, vert_index_to_update);
}
}
for (int subbuilder_index = 0; subbuilder_index < num_subbuilders; subbuilder_index++) {
EXPECT_EQ(builder.index_len, subbuilder_index * verts_per_subbuilders);
GPU_indexbuf_join(&builder, &subbuilders[subbuilder_index]);
EXPECT_EQ(builder.index_len, (subbuilder_index + 1) * verts_per_subbuilders);
}
GPUIndexBuf *index_buffer = GPU_indexbuf_build(&builder);
EXPECT_NE(index_buffer, nullptr);
GPU_INDEXBUF_DISCARD_SAFE(index_buffer);
}
GPU_TEST(gpu_index_buffer_subbuilders)
} // namespace blender::gpu::tests
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