125 lines
2.6 KiB
C++
125 lines
2.6 KiB
C++
#pragma once
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#include "../utils/test.h"
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#include "../GL/flush.h"
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#include "../containers/aligned_vector.h"
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namespace {
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struct VertexBuilder {
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VertexBuilder() {
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aligned_vector_init(&list_, sizeof(Vertex));
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}
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~VertexBuilder() {
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aligned_vector_clear(&list_);
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}
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VertexBuilder& add_header() {
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Vertex v;
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v.flags = 100; // I dunno what this bit of memory would be
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aligned_vector_push_back(&list_, &v, 1);
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return *this;
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}
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VertexBuilder& add(float x, float y, float z, float w) {
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Vertex v;
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v.flags = PVR_CMD_VERTEX;
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v.xyz[0] = x;
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v.xyz[1] = y;
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v.xyz[2] = z;
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v.w = w;
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aligned_vector_push_back(&list_, &v, 1);
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return *this;
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}
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VertexBuilder& add_last(float x, float y, float z, float w) {
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add(x, y, z, w);
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Vertex* back = (Vertex*) aligned_vector_back(&list_);
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back->flags = PVR_CMD_VERTEX_EOL;
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return *this;
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}
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std::pair<Vertex*, int> done() {
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return std::make_pair((Vertex*) aligned_vector_at(&list_, 0), list_.size);
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}
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private:
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AlignedVector list_;
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};
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class NearZClippingTests : public gldc::test::GLdcTestCase {
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public:
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void test_clipping_100() {
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/* When only the first vertex is visible, we still
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* end up with 4 elements (3 vertices + 1 header). The
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* first vertex should be the same */
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VertexBuilder builder;
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auto list = builder.
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add_header().
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add(1, 1, 2, 1).
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add(1, 0, 2, -1).
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add_last(0, 1, 2, -1).done();
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ListIterator* it = _glIteratorBegin(list.first, list.second);
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Vertex* v0 = it->it;
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assert_is_not_null(v0);
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assert_false(isVertex(v0)); // Should be a header
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it = _glIteratorNext(it);
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assert_is_not_null(it);
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Vertex* v1 = it->it;
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assert_is_not_null(v1);
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assert_true(isVertex(v1));
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it = _glIteratorNext(it);
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assert_is_not_null(it);
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Vertex* v2 = it->it;
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assert_is_not_null(v2);
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assert_true(isVertex(v2));
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it = _glIteratorNext(it);
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assert_is_not_null(it);
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Vertex* v3 = it->it;
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assert_is_not_null(v3);
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assert_true(isVertex(v3));
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it = _glIteratorNext(it);
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assert_is_null(it);
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}
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void test_clipping_110() {
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}
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void test_clipping_111() {
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}
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void test_clipping_101() {
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}
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void test_clipping_010() {
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}
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void test_clipping_001() {
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}
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void test_clipping_000() {
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}
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void test_clipping_011() {
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}
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};
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}
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