119 lines
2.8 KiB
C++
119 lines
2.8 KiB
C++
#include "Display.h"
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#include "DrawContext.h"
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#include "FrameBuffer.h"
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#include "Image.h"
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#include "SpriteAssetLoader.h"
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#include <cassert>
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#include <cstdio>
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#include <iostream>
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#include <string>
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#include <vector>
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namespace
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{
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class CaptureDisplay : public Platform::IDisplay
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{
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public:
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const Core::FrameBuffer* framebuffer;
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CaptureDisplay()
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: framebuffer(nullptr)
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{
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}
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bool init(int, int) override { return true; }
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void present(const Core::FrameBuffer* fb) override { framebuffer = fb; }
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void poll_events(bool&) override {}
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void shutdown() override {}
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};
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void TestFramePixelIsRgb565()
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{
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static_assert(sizeof(Core::FramePixel) == sizeof(uint16_t), "FramePixel must stay RGB565");
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assert(RenderData::rgba5551_to_rgb565(0xF801u) == 0xF800u);
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assert(RenderData::rgba5551_to_rgb565(0x07C1u) == 0x07E0u);
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assert(RenderData::rgba5551_to_rgb565(0x003Fu) == 0x001Fu);
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}
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void TestFrameBufferStoresRgb565()
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{
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Core::FrameBuffer framebuffer(2, 1);
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framebuffer.clear(RenderData::Color(255, 0, 0, 255));
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const Core::FramePixel* pixels = static_cast<const Core::FramePixel*>(framebuffer.get_buffer());
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assert(pixels[0] == 0xF800u);
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assert(pixels[1] == 0xF800u);
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}
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void TestDrawSpriteUsesOneBitAlpha()
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{
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const uint16_t sprite_pixels[] = {
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0xF800u,
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0x07C1u
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};
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Core::DrawContext ctx(2, 1);
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ctx.clear_color(RenderData::Color(0, 0, 255, 255));
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RenderData::Image sprite(
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sprite_pixels,
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2,
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1,
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RenderData::PixelFormat::RGBA5551);
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ctx.draw_sprite(0, 0, sprite);
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CaptureDisplay display;
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ctx.present(&display);
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assert(display.framebuffer != nullptr);
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const Core::FramePixel* pixels =
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static_cast<const Core::FramePixel*>(display.framebuffer->get_buffer());
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assert(pixels[0] == 0x001Fu);
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assert(pixels[1] == 0x07E0u);
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}
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void TestSpriteAssetLoaderRoundTripsRgba5551()
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{
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const std::string path = "render_pipeline_test.sprite";
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const uint16_t original_pixels[] = {
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0x0000u,
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0xF801u,
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0x07C1u,
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0x003Fu
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};
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RenderData::Image original(
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original_pixels,
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2,
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2,
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RenderData::PixelFormat::RGBA5551);
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assert(Asset::SpriteAssetLoader::Save(path, original));
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std::vector<uint16_t> loaded_pixels;
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RenderData::Image loaded;
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const bool loaded_ok = Asset::SpriteAssetLoader::Load(path, loaded_pixels, loaded);
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std::remove(path.c_str());
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assert(loaded_ok);
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assert(loaded.format == RenderData::PixelFormat::RGBA5551);
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assert(loaded.width == 2);
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assert(loaded.height == 2);
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assert(loaded_pixels.size() == 4u);
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for (size_t i = 0; i < loaded_pixels.size(); ++i)
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{
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assert(loaded_pixels[i] == original_pixels[i]);
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}
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}
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}
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int main()
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{
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TestFramePixelIsRgb565();
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TestFrameBufferStoresRgb565();
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TestDrawSpriteUsesOneBitAlpha();
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TestSpriteAssetLoaderRoundTripsRgba5551();
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std::cout << "render_pipeline_tests: PASS\n";
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return 0;
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}
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