Add main.c

main.c

@@ -0,0 +1,140 @@
+#include <kos.h>
+#include <stdio.h>
+#include <dirent.h>
+#include <dc/video.h>
+#include <dc/biosfont.h>
+
+#define PL_MPEG_IMPLEMENTATION
+#include "pl_mpeg.h"
+
+static pvr_ptr_t texture_ptr;
+static int video_width = 0;
+static int video_height = 0;
+static const int tex_size = 512; 
+
+void draw_error(const char *msg) {
+    uint16_t *vram = vram_s;
+    int x = 20, y = 20;
+    for(int i = 0; i < 640 * 480; i++) vram[i] = 0x000F;
+    bfont_draw_str(vram + y * 640 + x, 640, 0, msg);
+    while(1) {
+        MAPLE_FOREACH_BEGIN(MAPLE_FUNC_CONTROLLER, cont_state_t, st)
+            if(st->buttons & CONT_START) return;
+        MAPLE_FOREACH_END()
+    }
+}
+
+void draw_frame() {
+    pvr_poly_cxt_t cxt;
+    pvr_poly_hdr_t hdr;
+    pvr_vertex_t vert;
+
+    pvr_wait_ready();
+    pvr_scene_begin();
+    pvr_list_begin(PVR_LIST_OP_POLY);
+    pvr_poly_cxt_txr(&cxt, PVR_LIST_OP_POLY, PVR_TXRFMT_RGB565 | PVR_TXRFMT_NONTWIDDLED, 
+                     tex_size, tex_size, texture_ptr, PVR_FILTER_BILINEAR);
+    pvr_poly_compile(&hdr, &cxt);
+    pvr_prim(&hdr, sizeof(hdr));
+
+    float u_max = (float)video_width / (float)tex_size;
+    float v_max = (float)video_height / (float)tex_size;
+
+    vert.flags = PVR_CMD_VERTEX;
+    vert.z = 1.0f;
+    vert.argb = PVR_PACK_COLOR(1.0f, 1.0f, 1.0f, 1.0f);
+
+    vert.x = 0; vert.y = 0; vert.u = 0; vert.v = 0;
+    pvr_prim(&vert, sizeof(vert));
+
+    vert.x = 640; vert.y = 0; vert.u = u_max; vert.v = 0;
+    pvr_prim(&vert, sizeof(vert));
+
+    vert.x = 0; vert.y = 480; vert.u = 0; vert.v = v_max;
+    pvr_prim(&vert, sizeof(vert));
+
+    vert.flags = PVR_CMD_VERTEX_EOL;
+    vert.x = 640; vert.y = 480; vert.u = u_max; vert.v = v_max;
+    pvr_prim(&vert, sizeof(vert));
+
+    pvr_list_finish();
+    pvr_scene_finish();
+}
+
+
+void list_files_on_screen() {
+    DIR *dir;
+    struct dirent *ent;
+    int x = 20, y = 50;
+    uint16_t *vram = vram_s;
+
+    dir = opendir("/cd");
+    if (dir == NULL) {
+        bfont_draw_str(vram + (y * 640) + x, 640, 0, "Error: Could not open /cd");
+        return;
+    }
+
+    bfont_draw_str(vram + (y * 640) + x, 640, 0, "Files found on /cd:");
+    y += 20;
+
+    while ((ent = readdir(dir)) != NULL) {
+        char msg[128];
+        sprintf(msg, "  -> %s", ent->d_name);
+        bfont_draw_str(vram + (y * 640) + x, 640, 0, msg);
+        y += 20;
+        
+        if (y > 450) break;
+    }
+    closedir(dir);
+}
+
+void play_video(const char *filename) {
+    plm_t *plm = plm_create_with_filename(filename);
+    if (!plm) {
+        char err[128];
+        sprintf(err, "FATAL: Could not open %s", filename);
+        draw_error(err);
+        return;
+    }
+
+    video_width = plm_get_width(plm);
+    video_height = plm_get_height(plm);
+
+    while (!plm_has_ended(plm)) {
+        plm_frame_t *frame = plm_decode_video(plm);
+
+        if (frame) {
+            uint16_t *pix = (uint16_t *)texture_ptr;
+            uint8_t *y_plane = frame->y.data;
+
+            for (int y = 0; y < video_height; y++) {
+                for (int x = 0; x < video_width; x++) {
+                    uint8_t brightness = y_plane[y * video_width + x];
+                    uint16_t r = (brightness >> 3) & 0x1F;
+                    uint16_t g = (brightness >> 2) & 0x3F;
+                    uint16_t b = (brightness >> 3) & 0x1F;
+                    pix[y * tex_size + x] = (r << 11) | (g << 5) | b;
+                }
+            }
+            draw_frame();
+        }
+
+        MAPLE_FOREACH_BEGIN(MAPLE_FUNC_CONTROLLER, cont_state_t, st)
+            if(st->buttons & CONT_START) return;
+        MAPLE_FOREACH_END()
+
+        vid_waitvbl(); 
+    }
+    plm_destroy(plm);
+}
+
+int main(int argc, char **argv) {
+    pvr_init_defaults();
+    texture_ptr = pvr_mem_malloc(tex_size * tex_size * 2);
+    if (!texture_ptr) return -1;
+
+    play_video("/cd/VIDEO.MPG");
+
+    pvr_mem_free(texture_ptr);
+    return 0;
+}