Feat: GS, VIF1, VU1 pathways + font rendering stubs + mpeg stubs

ps2xRuntime/CMakeLists.txt

@@ -20,6 +20,7 @@ FetchContent_MakeAvailable(raylib)
 
 add_library(ps2_runtime STATIC
     src/lib/game_overrides.cpp
+    src/lib/ps2_gif_arbiter.cpp
     src/lib/ps2_audio.cpp
     src/lib/ps2_audio_vag.cpp
     src/lib/ps2_gs_gpu.cpp
@@ -32,6 +33,7 @@ add_library(ps2_runtime STATIC
     src/lib/ps2_stubs.cpp
     src/lib/ps2_syscalls.cpp
     src/lib/ps2_vif1_interpreter.cpp
+    src/lib/ps2_vu1.cpp
 )
 
 file(GLOB RUNNER_SRC_FILES CONFIGURE_DEPENDS

ps2xRuntime/include/ps2_call_list.h

@@ -336,6 +336,16 @@
     X(sceGsSyncV)                             \
     X(sceGsSyncVCallback)                     \
     X(sceGszbufaddr)                          \
+    X(sceeFontInit)                           \
+    X(sceeFontLoadFont)                       \
+    X(sceeFontPrintfAt)                       \
+    X(sceeFontPrintfAt2)                      \
+    X(sceeFontGenerateString)                 \
+    X(sceeFontClose)                          \
+    X(sceeFontSetColour)                      \
+    X(sceeFontSetMode)                        \
+    X(sceeFontSetFont)                        \
+    X(sceeFontSetScale)                       \
     X(sceIoctl)                               \
     X(sceIpuInit)                             \
     X(sceIpuRestartDMA)                       \

ps2xRuntime/include/ps2_gif_arbiter.h

@@ -0,0 +1,42 @@
+#ifndef PS2_GIF_ARBITER_H
+#define PS2_GIF_ARBITER_H
+
+#include <cstdint>
+#include <functional>
+#include <vector>
+
+enum class GifPathId : uint8_t
+{
+    Path1 = 1,
+    Path2 = 2,
+    Path3 = 3,
+};
+
+struct GifArbiterPacket
+{
+    GifPathId pathId;
+    std::vector<uint8_t> data;
+};
+
+class GifArbiter
+{
+public:
+    using ProcessPacketFn = std::function<void(const uint8_t *, uint32_t)>;
+
+    GifArbiter() = default;
+    explicit GifArbiter(ProcessPacketFn processFn);
+
+    void setProcessPacketFn(ProcessPacketFn fn) { m_processFn = std::move(fn); }
+
+    void submit(GifPathId pathId, const uint8_t *data, uint32_t sizeBytes);
+
+    void drain();
+
+private:
+    ProcessPacketFn m_processFn;
+    std::vector<GifArbiterPacket> m_queue;
+
+    static uint8_t pathPriority(GifPathId id);
+};
+
+#endif

ps2xRuntime/include/ps2_gs_common.h

@@ -0,0 +1,57 @@
+#ifndef PS2_GS_COMMON_H
+#define PS2_GS_COMMON_H
+
+#include "ps2_gs_gpu.h"
+#include <cstdint>
+
+namespace GSInternal
+{
+static inline uint32_t bitsPerPixel(uint8_t psm)
+{
+    switch (psm)
+    {
+    case GS_PSM_CT32:
+    case GS_PSM_Z32:
+        return 32;
+    case GS_PSM_CT24:
+    case GS_PSM_Z24:
+        return 32;
+    case GS_PSM_CT16:
+    case GS_PSM_CT16S:
+    case GS_PSM_Z16:
+    case GS_PSM_Z16S:
+        return 16;
+    case GS_PSM_T8:
+    case GS_PSM_T8H:
+        return 8;
+    case GS_PSM_T4:
+    case GS_PSM_T4HL:
+    case GS_PSM_T4HH:
+        return 4;
+    default:
+        return 32;
+    }
+}
+
+static inline uint32_t fbStride(uint32_t fbw, uint8_t psm)
+{
+    uint32_t pixelsPerRow = fbw * 64u;
+    return pixelsPerRow * (bitsPerPixel(psm) / 8u);
+}
+
+static inline int clampInt(int v, int lo, int hi)
+{
+    if (v < lo) return lo;
+    if (v > hi) return hi;
+    return v;
+}
+
+static inline uint8_t clampU8(int v)
+{
+    if (v < 0) return 0;
+    if (v > 255) return 255;
+    return static_cast<uint8_t>(v);
+}
+}
+
+#endif