Mike-Solar
f03b6b58ff
Run clang-format over all project C/C++ source and header files (.c, .cpp, .cc, .h, .hpp, .hh, .m, .mm) under app/ and tests/. Non-source files (svg, qm, qrc, etc.) were not touched.
430 lines
14 KiB
C++
430 lines
14 KiB
C++
#include <gtest/gtest.h>
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#include <QByteArray>
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#include <QMatrix4x4>
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#include <QOpenGLContext>
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#include <QThread>
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#include "node/value.h"
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#include "render/backend/dynamicrenderer.h"
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#include "render/job/shaderjob.h"
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#include "render/shadercode.h"
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#include "render/texture.h"
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#include "render/videoparams.h"
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// Verifies that the dynamic adapter can load the private OpenGL backend and
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// query its advertised C ABI capabilities without creating a viewer context.
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TEST(DynamicRenderBackend, LoadsExperimentalOpenGLBackend)
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{
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#ifndef OAK_ENABLE_DYNAMIC_RENDER_BACKEND
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GTEST_SKIP() << "Dynamic render backend is not enabled in this build";
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#else
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olive::DynamicRenderer renderer(QStringLiteral("opengl"));
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if (!renderer.Load()) {
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GTEST_SKIP()
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<< "opengl backend library could not be loaded in this environment";
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}
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EXPECT_EQ(renderer.OpenGLContext(), nullptr);
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OakRenderBackendInfo info = {};
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ASSERT_TRUE(renderer.GetBackendInfo(&info));
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EXPECT_EQ(info.abi_version, 1U);
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EXPECT_EQ(info.kind, OAK_RENDER_BACKEND_OPENGL);
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EXPECT_STREQ(info.name, "opengl");
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EXPECT_TRUE(info.capabilities & OAK_RENDER_BACKEND_CAP_TEXTURES);
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EXPECT_TRUE(info.capabilities & OAK_RENDER_BACKEND_CAP_SHADERS);
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EXPECT_TRUE(info.capabilities & OAK_RENDER_BACKEND_CAP_BLIT);
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EXPECT_TRUE(info.capabilities & OAK_RENDER_BACKEND_CAP_READBACK);
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#endif
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}
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// Regression test: the backend renderer must follow DynamicRenderer when it is
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// moved to a background thread. If it stays in the thread where Load() was
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// called, GL operations are rejected as "wrong thread" and texture creation
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// returns null, which manifests as a black screen.
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TEST(DynamicRenderBackend, OpenGLBackendFollowsAdapterToRenderThread)
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{
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#ifndef OAK_ENABLE_DYNAMIC_RENDER_BACKEND
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GTEST_SKIP() << "Dynamic render backend is not enabled in this build";
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#else
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olive::DynamicRenderer renderer(QStringLiteral("opengl"));
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if (!renderer.Load()) {
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GTEST_SKIP()
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<< "opengl backend library could not be loaded in this environment";
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}
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if (!renderer.Init()) {
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GTEST_SKIP()
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<< "OpenGL backend could not be initialized on this system";
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}
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QThread render_thread;
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renderer.moveToThread(&render_thread);
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render_thread.start();
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QOpenGLContext *ctx = renderer.OpenGLContext();
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ASSERT_NE(ctx, nullptr);
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EXPECT_EQ(ctx->thread(), &render_thread)
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<< "Backend OpenGL context did not follow DynamicRenderer to render thread";
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// Exercise the actual GL path in the render thread: PostInit() creates the
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// offscreen surface there, and CreateTexture() must not crash.
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olive::TexturePtr texture;
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QMetaObject::invokeMethod(
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&renderer,
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[&]() {
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renderer.PostInit();
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texture = renderer.CreateTexture(
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olive::VideoParams(64, 64, olive::PixelFormat::U8,
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olive::VideoParams::kRGBAChannelCount));
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},
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Qt::BlockingQueuedConnection);
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render_thread.quit();
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render_thread.wait();
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ASSERT_NE(texture, nullptr);
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EXPECT_FALSE(texture->IsDummy());
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#endif
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}
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// Verifies Vulkan backend discovery on systems with a working Vulkan ICD. The
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// test skips when the runtime correctly reports Vulkan as unavailable.
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TEST(DynamicRenderBackend, LoadsExperimentalVulkanBackendWhenAvailable)
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{
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#ifndef OAK_ENABLE_DYNAMIC_RENDER_BACKEND
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GTEST_SKIP() << "Dynamic render backend is not enabled in this build";
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#else
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olive::DynamicRenderer renderer(QStringLiteral("vulkan"));
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if (!renderer.Load()) {
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GTEST_SKIP()
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<< "vulkan backend library could not be loaded in this environment";
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}
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OakRenderBackendInfo info = {};
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ASSERT_TRUE(renderer.GetBackendInfo(&info));
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if (info.kind != OAK_RENDER_BACKEND_VULKAN) {
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GTEST_SKIP() << "Vulkan backend is not available on this system";
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}
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EXPECT_EQ(renderer.backend_name(), QStringLiteral("vulkan"));
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EXPECT_EQ(renderer.OpenGLContext(), nullptr);
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EXPECT_STREQ(info.name, "vulkan");
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EXPECT_TRUE(info.capabilities & OAK_RENDER_BACKEND_CAP_TEXTURES);
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EXPECT_TRUE(info.capabilities & OAK_RENDER_BACKEND_CAP_SHADERS);
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EXPECT_TRUE(info.capabilities & OAK_RENDER_BACKEND_CAP_BLIT);
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EXPECT_TRUE(info.capabilities & OAK_RENDER_BACKEND_CAP_READBACK);
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#endif
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}
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// Verifies that requesting Vulkan on systems without a usable runtime falls
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// back to OpenGL and reports the effective backend name.
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TEST(DynamicRenderBackend, FallsBackWhenExperimentalVulkanUnavailable)
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{
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#ifndef OAK_ENABLE_DYNAMIC_RENDER_BACKEND
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GTEST_SKIP() << "Dynamic render backend is not enabled in this build";
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#else
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olive::DynamicRenderer renderer(QStringLiteral("vulkan"));
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if (!renderer.Load()) {
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GTEST_SKIP()
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<< "vulkan backend library could not be loaded in this environment";
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}
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OakRenderBackendInfo info = {};
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ASSERT_TRUE(renderer.GetBackendInfo(&info));
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if (info.kind == OAK_RENDER_BACKEND_VULKAN) {
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GTEST_SKIP()
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<< "Vulkan backend is available on this system; skip fallback test";
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}
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EXPECT_EQ(renderer.backend_name(), QStringLiteral("opengl"));
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EXPECT_EQ(renderer.OpenGLContext(), nullptr);
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EXPECT_EQ(info.kind, OAK_RENDER_BACKEND_OPENGL);
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EXPECT_STREQ(info.name, "opengl");
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#endif
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}
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// Exercises the minimal Vulkan render loop: upload a texture, run a pass-through
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// shader blit, then download the destination and verify pixel data.
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TEST(DynamicRenderBackend, VulkanUploadBlitDownload)
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{
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#ifndef OAK_ENABLE_DYNAMIC_RENDER_BACKEND
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GTEST_SKIP() << "Dynamic render backend is not enabled in this build";
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#else
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olive::DynamicRenderer renderer(QStringLiteral("vulkan"));
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if (!renderer.Load()) {
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GTEST_SKIP()
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<< "vulkan backend library could not be loaded in this environment";
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}
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OakRenderBackendInfo info = {};
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ASSERT_TRUE(renderer.GetBackendInfo(&info));
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if (info.kind != OAK_RENDER_BACKEND_VULKAN) {
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GTEST_SKIP() << "Vulkan backend is not available on this system";
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}
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ASSERT_TRUE(renderer.Init());
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renderer.PostInit();
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const int kSize = 64;
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olive::VideoParams params(kSize, kSize, olive::PixelFormat::U8,
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olive::VideoParams::kRGBAChannelCount);
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olive::TexturePtr src = renderer.CreateTexture(params);
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ASSERT_NE(src, nullptr);
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ASSERT_FALSE(src->IsDummy());
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QByteArray src_data(kSize * kSize * 4, 0);
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for (int i = 0; i < kSize * kSize; ++i) {
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src_data[i * 4 + 0] = static_cast<char>(255); // R
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src_data[i * 4 + 1] = static_cast<char>(0); // G
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src_data[i * 4 + 2] = static_cast<char>(0); // B
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src_data[i * 4 + 3] = static_cast<char>(255); // A
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}
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src->Upload(src_data.data(), kSize);
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olive::TexturePtr dst = renderer.CreateTexture(params);
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ASSERT_NE(dst, nullptr);
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ASSERT_FALSE(dst->IsDummy());
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const QString vert =
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QStringLiteral("uniform mat4 ove_mvpmat;\n"
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"in vec4 a_position;\n"
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"in vec2 a_texcoord;\n"
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"out vec2 ove_texcoord;\n"
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"void main() {\n"
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" gl_Position = ove_mvpmat * a_position;\n"
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" ove_texcoord = a_texcoord;\n"
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"}\n");
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const QString frag =
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QStringLiteral("uniform sampler2D ove_maintex;\n"
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"in vec2 ove_texcoord;\n"
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"out vec4 frag_color;\n"
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"void main() {\n"
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" frag_color = texture(ove_maintex, ove_texcoord);\n"
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"}\n");
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QVariant shader =
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renderer.CreateNativeShader(olive::ShaderCode(frag, vert));
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ASSERT_FALSE(shader.isNull());
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olive::ShaderJob job;
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job.Insert(QStringLiteral("ove_maintex"),
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olive::NodeValue(olive::NodeValue::kTexture,
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QVariant::fromValue(src)));
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job.Insert(QStringLiteral("ove_mvpmat"),
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olive::NodeValue(olive::NodeValue::kMatrix, QMatrix4x4()));
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renderer.BlitToTexture(shader, job, dst.get(), true);
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QByteArray dst_data(kSize * kSize * 4, 0);
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dst->Download(dst_data.data(), kSize);
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// The default pass-through shader should reproduce the red source pixel.
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EXPECT_EQ(static_cast<uint8_t>(dst_data[0]), 255u);
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EXPECT_EQ(static_cast<uint8_t>(dst_data[1]), 0u);
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EXPECT_EQ(static_cast<uint8_t>(dst_data[2]), 0u);
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EXPECT_EQ(static_cast<uint8_t>(dst_data[3]), 255u);
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#endif
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}
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// Ensures the Vulkan backend handles null-destination blits by rendering to a
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// temporary offscreen target instead of dereferencing a missing framebuffer.
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TEST(DynamicRenderBackend, VulkanNullDestinationBlitDoesNotCrash)
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{
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#ifndef OAK_ENABLE_DYNAMIC_RENDER_BACKEND
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GTEST_SKIP() << "Dynamic render backend is not enabled in this build";
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#else
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olive::DynamicRenderer renderer(QStringLiteral("vulkan"));
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if (!renderer.Load()) {
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GTEST_SKIP()
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<< "vulkan backend library could not be loaded in this environment";
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}
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OakRenderBackendInfo info = {};
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ASSERT_TRUE(renderer.GetBackendInfo(&info));
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if (info.kind != OAK_RENDER_BACKEND_VULKAN) {
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GTEST_SKIP() << "Vulkan backend is not available on this system";
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}
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ASSERT_TRUE(renderer.Init());
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renderer.PostInit();
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const int kSize = 32;
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olive::VideoParams params(kSize, kSize, olive::PixelFormat::U8,
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olive::VideoParams::kRGBAChannelCount);
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olive::TexturePtr src = renderer.CreateTexture(params);
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ASSERT_NE(src, nullptr);
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ASSERT_FALSE(src->IsDummy());
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QByteArray src_data(kSize * kSize * 4, 0);
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for (int i = 0; i < kSize * kSize; ++i) {
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src_data[i * 4 + 0] = static_cast<char>(255);
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src_data[i * 4 + 3] = static_cast<char>(255);
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}
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src->Upload(src_data.data(), kSize);
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const QString vert =
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QStringLiteral("uniform mat4 ove_mvpmat;\n"
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"in vec4 a_position;\n"
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"in vec2 a_texcoord;\n"
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"out vec2 ove_texcoord;\n"
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"void main() {\n"
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" gl_Position = ove_mvpmat * a_position;\n"
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" ove_texcoord = a_texcoord;\n"
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"}\n");
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const QString frag =
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QStringLiteral("uniform sampler2D ove_maintex;\n"
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"in vec2 ove_texcoord;\n"
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"out vec4 frag_color;\n"
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"void main() {\n"
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" frag_color = texture(ove_maintex, ove_texcoord);\n"
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"}\n");
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QVariant shader =
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renderer.CreateNativeShader(olive::ShaderCode(frag, vert));
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ASSERT_FALSE(shader.isNull());
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olive::ShaderJob job;
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job.Insert(QStringLiteral("ove_maintex"),
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olive::NodeValue(olive::NodeValue::kTexture,
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QVariant::fromValue(src)));
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job.Insert(QStringLiteral("ove_mvpmat"),
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olive::NodeValue(olive::NodeValue::kMatrix, QMatrix4x4()));
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// Null-destination Blit has no render target; it should simply not crash.
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renderer.Blit(shader, job, params, true);
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SUCCEED();
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#endif
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}
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// Verifies iterative shader support: the first pass writes to a temporary
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// texture and the second pass samples it before writing the final destination.
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TEST(DynamicRenderBackend, VulkanIterativeBlitPingPong)
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{
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#ifndef OAK_ENABLE_DYNAMIC_RENDER_BACKEND
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GTEST_SKIP() << "Dynamic render backend is not enabled in this build";
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#else
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olive::DynamicRenderer renderer(QStringLiteral("vulkan"));
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if (!renderer.Load()) {
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GTEST_SKIP()
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<< "vulkan backend library could not be loaded in this environment";
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}
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OakRenderBackendInfo info = {};
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ASSERT_TRUE(renderer.GetBackendInfo(&info));
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if (info.kind != OAK_RENDER_BACKEND_VULKAN) {
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GTEST_SKIP() << "Vulkan backend is not available on this system";
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}
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ASSERT_TRUE(renderer.Init());
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renderer.PostInit();
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const int kSize = 32;
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olive::VideoParams params(kSize, kSize, olive::PixelFormat::U8,
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olive::VideoParams::kRGBAChannelCount);
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olive::TexturePtr src = renderer.CreateTexture(params);
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ASSERT_NE(src, nullptr);
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ASSERT_FALSE(src->IsDummy());
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// Start with a fully red texture.
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QByteArray src_data(kSize * kSize * 4, 0);
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for (int i = 0; i < kSize * kSize; ++i) {
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src_data[i * 4 + 0] = static_cast<char>(255);
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src_data[i * 4 + 3] = static_cast<char>(255);
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}
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src->Upload(src_data.data(), kSize);
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olive::TexturePtr dst = renderer.CreateTexture(params);
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ASSERT_NE(dst, nullptr);
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ASSERT_FALSE(dst->IsDummy());
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// Shader that samples the iterative input and scales RGB by 0.5 each pass.
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const QString vert =
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QStringLiteral("uniform mat4 ove_mvpmat;\n"
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"in vec4 a_position;\n"
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"in vec2 a_texcoord;\n"
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"out vec2 ove_texcoord;\n"
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"void main() {\n"
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" gl_Position = ove_mvpmat * a_position;\n"
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" ove_texcoord = a_texcoord;\n"
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"}\n");
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const QString frag =
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QStringLiteral("uniform sampler2D ove_maintex;\n"
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"in vec2 ove_texcoord;\n"
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"out vec4 frag_color;\n"
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"void main() {\n"
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" vec4 c = texture(ove_maintex, ove_texcoord);\n"
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" frag_color = vec4(c.rgb * 0.5, c.a);\n"
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"}\n");
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QVariant shader =
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renderer.CreateNativeShader(olive::ShaderCode(frag, vert));
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ASSERT_FALSE(shader.isNull());
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olive::ShaderJob job;
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job.Insert(QStringLiteral("ove_maintex"),
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olive::NodeValue(olive::NodeValue::kTexture,
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QVariant::fromValue(src)));
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job.Insert(QStringLiteral("ove_mvpmat"),
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olive::NodeValue(olive::NodeValue::kMatrix, QMatrix4x4()));
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job.SetIterations(2, QStringLiteral("ove_maintex"));
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renderer.BlitToTexture(shader, job, dst.get(), true);
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QByteArray dst_data(kSize * kSize * 4, 0);
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dst->Download(dst_data.data(), kSize);
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// After two halving passes, red is 255 * 0.5 * 0.5. UNORM conversion floors
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// the intermediate value, so the result is 63 rather than 64.
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EXPECT_EQ(static_cast<uint8_t>(dst_data[0]), 63u);
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EXPECT_EQ(static_cast<uint8_t>(dst_data[1]), 0u);
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EXPECT_EQ(static_cast<uint8_t>(dst_data[2]), 0u);
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EXPECT_EQ(static_cast<uint8_t>(dst_data[3]), 255u);
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#endif
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}
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// Verifies RGB upload/download when the Vulkan driver stores the texture in a
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// wider renderable format such as RGBA.
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TEST(DynamicRenderBackend, VulkanUploadDownloadThreeChannel)
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{
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#ifndef OAK_ENABLE_DYNAMIC_RENDER_BACKEND
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GTEST_SKIP() << "Dynamic render backend is not enabled in this build";
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#else
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olive::DynamicRenderer renderer(QStringLiteral("vulkan"));
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if (!renderer.Load()) {
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GTEST_SKIP()
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<< "vulkan backend library could not be loaded in this environment";
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}
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OakRenderBackendInfo info = {};
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ASSERT_TRUE(renderer.GetBackendInfo(&info));
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if (info.kind != OAK_RENDER_BACKEND_VULKAN) {
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GTEST_SKIP() << "Vulkan backend is not available on this system";
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}
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ASSERT_TRUE(renderer.Init());
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renderer.PostInit();
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const int kSize = 16;
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olive::VideoParams params(kSize, kSize, olive::PixelFormat::U8,
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olive::VideoParams::kRGBChannelCount);
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olive::TexturePtr tex = renderer.CreateTexture(params);
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ASSERT_NE(tex, nullptr);
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ASSERT_FALSE(tex->IsDummy());
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QByteArray src_data(kSize * kSize * 3, 0);
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for (int i = 0; i < kSize * kSize; ++i) {
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src_data[i * 3 + 0] = static_cast<char>(255);
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src_data[i * 3 + 1] = static_cast<char>(128);
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src_data[i * 3 + 2] = static_cast<char>(64);
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}
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tex->Upload(src_data.data(), kSize);
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QByteArray dst_data(kSize * kSize * 3, 0);
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tex->Download(dst_data.data(), kSize);
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EXPECT_EQ(static_cast<uint8_t>(dst_data[0]), 255u);
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EXPECT_EQ(static_cast<uint8_t>(dst_data[1]), 128u);
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EXPECT_EQ(static_cast<uint8_t>(dst_data[2]), 64u);
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#endif
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}
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