原始像素太卡走ffmpeg

2026-08-29 19:03:19 +08:00
parent 686bb637c0
commit 45783201e4
168 changed files with 33674 additions and 1657 deletions
@@ -0,0 +1,89 @@
+#include <gtest/gtest.h>
+#include <web_server/src/detail/Gallery_Frame_Atlas.hpp>
+#include <cstddef>
+#include <cstdint>
+#include <memory>
+#include <vector>
+
+namespace aethera::web::detail {
+namespace {
+std::shared_ptr<const Plot_Pixel_Frame> solid_frame(
+    std::uint64_t sequence, std::uint32_t width,
+    std::uint32_t height, std::byte value) {
+    auto pixels = std::make_shared<std::vector<std::byte>>(
+        static_cast<std::size_t>(width) * height * 4U);
+    for (std::size_t offset = 0; offset < pixels->size(); offset += 4U) {
+        (*pixels)[offset] = value;
+        (*pixels)[offset + 3U] = std::byte{255};
+    }
+    return std::make_shared<const Plot_Pixel_Frame>(Plot_Pixel_Frame{
+        std::move(pixels), Plot_Pixel_Layout::rgba8, {}, sequence,
+        sequence, sequence, sequence, width, height});
+}
+
+std::shared_ptr<const Plot_Pixel_Frame> completion_frame(
+    std::uint64_t sequence, std::uint64_t rendered_sequence,
+    std::uint32_t width, std::uint32_t height) {
+    return std::make_shared<const Plot_Pixel_Frame>(Plot_Pixel_Frame{
+        {}, Plot_Pixel_Layout::rgba8, {}, sequence, sequence,
+        rendered_sequence, rendered_sequence, width, height});
+}
+}
+
+TEST(Gallery_Frame_Atlas, Composes_Stable_Layout_And_Retains_Static_Image) {
+    Gallery_Frame_Atlas atlas(2, 2, 2, {"alpha", "beta", "gamma"});
+    const auto description = atlas.describe();
+    ASSERT_EQ(description.columns, 2U);
+    ASSERT_EQ(description.rows, 2U);
+    ASSERT_EQ(description.width, 4U);
+    ASSERT_EQ(description.height, 4U);
+    ASSERT_EQ(atlas.accept_frame(
+                  0, solid_frame(1, 2, 2, std::byte{17})),
+              Gallery_Frame_Atlas::Accept_Frame_Result::accepted);
+    const auto first = atlas.compose();
+    EXPECT_EQ(first.fresh_tile_count, 1U);
+    EXPECT_EQ(first.pixels[0], std::byte{17});
+    const auto repeated = atlas.compose();
+    EXPECT_EQ(repeated.fresh_tile_count, 0U);
+    EXPECT_EQ(repeated.pixels[0], std::byte{17});
+}
+
+TEST(Gallery_Frame_Atlas,
+     Completion_Progress_Does_Not_Replace_The_Authoritative_Pixels) {
+    Gallery_Frame_Atlas atlas(2, 2, 1, {"alpha"});
+    ASSERT_EQ(atlas.accept_frame(
+                  0, solid_frame(1, 2, 2, std::byte{23})),
+              Gallery_Frame_Atlas::Accept_Frame_Result::accepted);
+    static_cast<void>(atlas.compose());
+
+    ASSERT_EQ(atlas.accept_frame(
+                  0, completion_frame(2, 1, 2, 2)),
+              Gallery_Frame_Atlas::Accept_Frame_Result::accepted);
+    const auto composition = atlas.compose();
+    ASSERT_EQ(composition.sources.size(), 1U);
+    EXPECT_EQ(composition.fresh_tile_count, 0U);
+    EXPECT_EQ(composition.missing_tile_count, 0U);
+    EXPECT_EQ(composition.pixels[0], std::byte{23});
+    EXPECT_EQ(composition.sources[0].completion_sequence, 2U);
+    EXPECT_EQ(composition.sources[0].rendered_sequence, 1U);
+    EXPECT_EQ(composition.sources[0].completion_count, 2U);
+    EXPECT_EQ(composition.sources[0].rendered_frame_count, 1U);
+}
+
+TEST(Gallery_Frame_Atlas, Rejects_Stale_Completion_Without_Mutating_Progress) {
+    Gallery_Frame_Atlas atlas(2, 2, 1, {"alpha"});
+    ASSERT_EQ(atlas.accept_frame(
+                  0, solid_frame(2, 2, 2, std::byte{31})),
+              Gallery_Frame_Atlas::Accept_Frame_Result::accepted);
+    ASSERT_EQ(atlas.accept_frame(
+                  0, completion_frame(1, 1, 2, 2)),
+              Gallery_Frame_Atlas::Accept_Frame_Result::stale_frame);
+
+    const auto composition = atlas.compose();
+    ASSERT_EQ(composition.sources.size(), 1U);
+    EXPECT_EQ(composition.rejected_frame_count, 1U);
+    EXPECT_EQ(composition.sources[0].completion_sequence, 2U);
+    EXPECT_EQ(composition.sources[0].completion_count, 1U);
+    EXPECT_EQ(composition.pixels[0], std::byte{31});
+}
+}