major restructuring, prepare for smp

code/user/apps/video/video.c

@@ -0,0 +1,148 @@
+#include <windows.h>
+#include <stdint.h>
+#include <stddef.h>
+#include <string.h>
+#include <intrin.h>
+#include "bink.h"
+
+static const char* commandLineSecondToken(const char* cmdline, char* out, size_t outSize) {
+    if (!out || outSize == 0) return "video.bk2";
+    strcpy(out, "video.bk2");
+    if (!cmdline) return out;
+
+    while (*cmdline == ' ' || *cmdline == '\t') cmdline++;
+    if (*cmdline == '\0') return out;
+
+    if (*cmdline == '"') {
+        cmdline++;
+        while (*cmdline && *cmdline != '"') cmdline++;
+        if (*cmdline == '"') cmdline++;
+    } else {
+        while (*cmdline && *cmdline != ' ' && *cmdline != '\t') cmdline++;
+    }
+
+    while (*cmdline == ' ' || *cmdline == '\t') cmdline++;
+    if (*cmdline == '\0') return out;
+
+    size_t pos = 0;
+    if (*cmdline == '"') {
+        cmdline++;
+        while (*cmdline && *cmdline != '"' && pos + 1 < outSize)
+            out[pos++] = *cmdline++;
+    } else {
+        while (*cmdline && *cmdline != ' ' && *cmdline != '\t' && pos + 1 < outSize)
+            out[pos++] = *cmdline++;
+    }
+    out[pos] = '\0';
+    return out;
+}
+
+int main(void) {
+    const char* cmdline = GetCommandLineA();
+    char videoPath[260];
+    const char* path = commandLineSecondToken(cmdline, videoPath, sizeof(videoPath));
+
+    void* h = GetStdHandle(STD_OUTPUT_HANDLE);
+    WriteConsoleA(h, "video: starting\n", 16, 0, 0);
+
+    WriteConsoleA(h, cmdline, (unsigned int)strlen(cmdline), 0, 0);
+    WriteConsoleA(h, "\n", 1, 0, 0);
+
+    void* f = CreateFileA(path, 0, 0, 0, 3, 0, 0);
+    if (!f || f == (void*)(unsigned long long)0xFFFFFFFF) { // fuckass
+        WriteConsoleA(h, "video: failed to open input file\n", 33, 0, 0);
+        ExitProcess(1);
+    }
+
+    unsigned long s = GetFileSize(f, 0);
+    if (!s || s == 0xFFFFFFFF) {
+        WriteConsoleA(h, "video: GetFileSize failed!\n", 27, 0, 0);
+        ExitProcess(1);
+    }
+    void* buf = HeapAlloc(0, 0, s);
+    if (!buf) {
+        WriteConsoleA(h, "video: HeapAlloc failed\n", 24, 0, 0);
+        ExitProcess(1);
+    }
+
+    int r = ReadFile(f, buf, s, 0, 0);
+    if (!r) {
+        WriteConsoleA(h, "video: ReadFile failed\n", 23, 0, 0);
+        ExitProcess(1);
+    }
+    WriteConsoleA(h, "video: input file loaded\n", 25, 0, 0);
+    
+    CloseHandle(h);
+
+    HBINK b = BinkOpen(buf, BINKFROMMEMORY);
+    if (!b) {
+        WriteConsoleA(h, "video: BinkOpen failed: ", 24, 0, 0);
+        const char* err = BinkGetError();
+        WriteConsoleA(h, err, (unsigned int)strlen(err), 0, 0);
+        WriteConsoleA(h, "\n", 1, 0, 0);
+        ExitProcess(1);
+    }
+
+    uint32_t width  = b->Width;
+    uint32_t height = b->Height;
+
+    uint32_t* fb = HeapAlloc(0, 0, width * height * sizeof(uint32_t));
+    if (!fb) {
+        WriteConsoleA(h, "video: framebuffer alloc failed\n", 32, 0, 0);
+        ExitProcess(1);
+    }
+
+    // Prepare the Win32 BITMAPINFO structure
+    BITMAPINFO bmi;
+    memset(&bmi, 0, sizeof(bmi));
+    bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
+    bmi.bmiHeader.biWidth = width;
+    bmi.bmiHeader.biHeight = -(LONG)height; // Negative means top-down drawing!
+    bmi.bmiHeader.biPlanes = 1;
+    bmi.bmiHeader.biBitCount = 32;
+    bmi.bmiHeader.biCompression = BI_RGB;
+
+    while (1) {
+        if (BinkWait(b)) {
+            _mm_pause();
+            continue;
+        }
+
+        BinkDoFrame(b);
+
+        if (BinkShouldSkip(b)) {
+            BinkNextFrame(b);
+            BinkDoFrame(b);
+            continue;
+        }
+
+        BinkCopyToBuffer(b, fb, width * 4, height, 0, 0, 
+            BINKSURFACE32);
+
+        // Welcome to the GDI pipeline!
+        PAINTSTRUCT ps;
+        // Using NULL/0 as the HWND since we don't have a real window handle yet
+        HDC hdc = BeginPaint((HWND)0, &ps);
+
+        StretchDIBits(
+            hdc,
+            0, 0, width, height, // Destination rect
+            0, 0, width, height, // Source rect
+            fb,
+            &bmi,
+            DIB_RGB_COLORS,
+            SRCCOPY
+        );
+
+        EndPaint((HWND)0, &ps);
+
+        if (b->FrameNum == b->Frames)
+            break;
+
+        BinkNextFrame(b);
+    }
+    
+    WriteConsoleA(h, "video: goodbye\n", 15, 0, 0);
+
+    ExitProcess(0);
+}