xemu-project/nxdk_pgraph_tests
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Improves negative-w trivial test.

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This commit is contained in:
Erik Abair 2022-01-20 21:50:08 -08:00
parent 410c0f0451
commit a05393d711
1 changed files with 48 additions and 5 deletions
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53
src/tests/w_param_tests.cpp
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@ -38,7 +38,7 @@ void WParamTests::CreateGeometryWGaps() {
const float bottom = top + (fb_height - top * 2.0f);
const float right = left + (fb_width - left * 2.0f);
float width = right - left;
float mid_height = top + (bottom - top) * 0.5;
float mid_height = top + (bottom - top) * 0.5f;
triangle_strip_ = host_.AllocateVertexBuffer(40);
@ -144,7 +144,7 @@ void WParamTests::CreateGeometryPositiveWTriangleStrip() {
const float bottom = top + (fb_height - top * 2.0f);
const float right = left + (fb_width - left * 2.0f);
float width = right - left;
float mid_width = left + width * 0.5;
float mid_width = left + width * 0.5f;
triangle_strip_ = host_.AllocateVertexBuffer(6);
@ -174,10 +174,36 @@ void WParamTests::TestPositiveWTriangleStrip() {
}
void WParamTests::CreateGeometryNegativeWTriangleStrip() {
CreateGeometryPositiveWTriangleStrip();
auto fb_width = static_cast<float>(host_.GetFramebufferWidth());
auto fb_height = static_cast<float>(host_.GetFramebufferHeight());
const float left = floorf(fb_width / 5.0f);
const float top = floorf(fb_height / 6.0f);
const float bottom = top + (fb_height - top * 2.0f);
const float right = left + (fb_width - left * 2.0f);
float width = right - left;
float mid_width = left + width * 0.5f;
triangle_strip_ = host_.AllocateVertexBuffer(6);
triangle_strip_->SetPositionIncludesW();
auto vertex = triangle_strip_->Lock();
auto add_vertex = [&vertex](float x, float y, float w, float r, float g, float b) {
vertex->SetPosition(x, y, 0.0, w);
vertex->SetDiffuse(r, g, b);
++vertex;
};
const float w = 1.0f;
add_vertex(left, bottom, w, 0.75, 0.75, 0.75);
add_vertex(left, top, w, 1.0, 1.0, 1.0);
add_vertex(mid_width, bottom, w, 0.5, 0.5, 0.5);
add_vertex(mid_width, top, w, 0.0f, 1.0f, 0.0f);
add_vertex(mid_width, top, -0.1, 1.0, 0.0, 0.0);
add_vertex(right, bottom, w, 0.0, 0.5, 0.5);
Vertex* vertex = triangle_strip_->Lock();
vertex[2].pos[3] = -0.01f;
triangle_strip_->Unlock();
}
@ -185,6 +211,23 @@ void WParamTests::TestNegativeWTriangleStrip() {
CreateGeometryNegativeWTriangleStrip();
host_.SetVertexBuffer(triangle_strip_);
host_.PrepareDraw();
host_.DrawArrays(TestHost::POSITION | TestHost::DIFFUSE, TestHost::PRIMITIVE_TRIANGLE_STRIP);
auto p = pb_begin();
p = pb_push1(p, NV097_SET_FRONT_POLYGON_MODE, NV097_SET_FRONT_POLYGON_MODE_V_LINE);
// Note: This shouldn't strictly be necessary, but at the moment xemu disallows different fill modes for front and
// back.
p = pb_push1(p, NV097_SET_BACK_POLYGON_MODE, NV097_SET_FRONT_POLYGON_MODE_V_LINE);
p = pb_push1(p, NV097_SET_DIFFUSE_COLOR, 0xFFFFFFFF);
pb_end(p);
host_.DrawArrays(TestHost::POSITION, TestHost::PRIMITIVE_TRIANGLE_STRIP);
p = pb_begin();
p = pb_push1(p, NV097_SET_FRONT_POLYGON_MODE, NV097_SET_FRONT_POLYGON_MODE_V_FILL);
p = pb_push1(p, NV097_SET_BACK_POLYGON_MODE, NV097_SET_FRONT_POLYGON_MODE_V_FILL);
pb_end(p);
host_.FinishDrawAndSave(output_dir_, kTestWNegativeTriangleStrip);
}