xemu-project/nxdk_pgraph_tests
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Adds more rounding tests.

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This commit is contained in:
Erik Abair 2022-02-14 18:48:00 -08:00
parent 0b3115ecae
commit e121fee8ba
2 changed files with 23 additions and 10 deletions
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29
src/tests/vertex_shader_rounding_tests.cpp
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@ -8,7 +8,6 @@
#include "debug_output.h"
#include "pbkit_ext.h"
#include "shaders/pixel_shader_program.h"
#include "shaders/precalculated_vertex_shader.h"
#include "test_host.h"
#include "texture_format.h"
@ -25,10 +24,19 @@ static const uint32_t kTextureHeight = 128;
static constexpr const char kTestRenderTargetName[] = "RenderTarget";
static constexpr const char kTestGeometryName[] = "Geometry";
static constexpr float kGeometryTestBiases[] = {
// Boundaries at 1/16 = 0.0625f
0.0f, 0.001f, 0.5f, 0.5624f, 0.5625f, 0.5626f, 0.999f,
};
VertexShaderRoundingTests::VertexShaderRoundingTests(TestHost &host, std::string output_dir)
: TestSuite(host, std::move(output_dir), "Vertex shader rounding tests") {
tests_[kTestRenderTargetName] = [this]() { TestRenderTarget(); };
tests_[kTestGeometryName] = [this]() { TestGeometry(); };
for (auto bias : kGeometryTestBiases) {
std::string test_name = MakeGeometryTestName(bias);
tests_[test_name] = [this, bias]() { TestGeometry(bias); };
}
}
void VertexShaderRoundingTests::Initialize() {
@ -185,7 +193,7 @@ void VertexShaderRoundingTests::TestRenderTarget() {
host_.FinishDraw(allow_saving_, output_dir_, kTestRenderTargetName);
}
void VertexShaderRoundingTests::TestGeometry() {
void VertexShaderRoundingTests::TestGeometry(float bias) {
host_.SetTextureStageEnabled(0, false);
host_.SetShaderStageProgram(TestHost::STAGE_NONE);
@ -216,12 +224,8 @@ void VertexShaderRoundingTests::TestGeometry() {
host_.SetVertex(left, bottom, z, 1.0f);
host_.End();
pb_print("%s\n", kTestGeometryName);
pb_draw_text_screen();
// Draw a subpixel offset green square.
color = 0xFF009900;
const float bias = 0.5;
host_.Begin(TestHost::PRIMITIVE_QUADS);
host_.SetDiffuse(color);
host_.SetVertex(left + bias, top + bias, z, 1.0f);
@ -230,8 +234,15 @@ void VertexShaderRoundingTests::TestGeometry() {
host_.SetVertex(left + bias, bottom, z, 1.0f);
host_.End();
pb_print("%s\n", kTestGeometryName);
std::string test_name = MakeGeometryTestName(bias);
pb_print("%s\n", test_name.c_str());
pb_draw_text_screen();
host_.FinishDraw(allow_saving_, output_dir_, kTestGeometryName);
host_.FinishDraw(allow_saving_, output_dir_, test_name);
}
std::string VertexShaderRoundingTests::MakeGeometryTestName(float bias) {
char buf[32] = {0};
snprintf(buf, 31, "%s_%f", kTestGeometryName, bias);
return buf;
}

4
src/tests/vertex_shader_rounding_tests.h
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@ -21,7 +21,9 @@ class VertexShaderRoundingTests : public TestSuite {
void CreateGeometry();
void TestRenderTarget();
void TestGeometry();
void TestGeometry(float bias);
static std::string MakeGeometryTestName(float bias);
private:
struct s_CtxDma texture_target_ctx_ {};