add moonmountains

cover/moonmountains.data.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern uint32_t _binary_cover_moonmountains_data_start __asm("_binary_cover_moonmountains_data_start");
+extern uint32_t _binary_cover_moonmountains_data_end __asm("_binary_cover_moonmountains_data_end");
+extern uint32_t _binary_cover_moonmountains_data_size __asm("_binary_cover_moonmountains_data_size");
+
+#ifdef __cplusplus
+}
+#endif

src/graphics.cpp

@@ -27,7 +27,9 @@
 #include "cursor.hpp"
 #include "ta_parameter.hpp"
 
+#include "dve.hpp"
 #include "sh7091/sh7091.hpp"
+#include "aica/aica.hpp"
 
 static volatile int ta_in_use = 0;
 static volatile int core_in_use = 0;
@@ -35,9 +37,6 @@ volatile int next_frame = 0;
 static volatile int framebuffer_ix = 0;
 static volatile int next_frame_ix = 0;
 
-static void * pt_buf = nullptr;
-static int pt_offset = 0;
-
 static void * op_buf = nullptr;
 static int op_offset = 0;
 
@@ -48,6 +47,7 @@ void graphics_interrupt(uint32_t istnrm)
 
     next_frame = 1;
     holly.FB_R_SOF1 = texture_memory_alloc.framebuffer[next_frame_ix].start;
+    holly.FB_R_SOF2 = texture_memory_alloc.framebuffer[next_frame_ix].start;
   }
 
   if (istnrm & istnrm::end_of_render_tsp) {
@@ -123,7 +123,41 @@ static inline void zeroize_ta_fifo_texture_memory_32byte(void * dst, int length)
   }
 }
 
-void graphics_init()
+void set_mode_by_cable_type(uint32_t cable_type, bool emulator)
+{
+  if (emulator)
+    goto vga;
+
+  switch (cable_type) {
+  case pdtra::cable_type::vga:
+    vga:
+    printf("vga\n");
+    spg_set_mode_640x480();
+    framebuffer.px_width = 640;
+    framebuffer.px_height = 480;
+    aica_sound.common.VREG(vreg::output_mode::vga);
+    break;
+  case pdtra::cable_type::rgb:
+    printf("rgb\n");
+    video_output::set_mode(video_output::ntsc_ni);
+    framebuffer.px_width = 320;
+    framebuffer.px_height = 240;
+    aica_sound.common.VREG(vreg::output_mode::rgb);
+    break;
+  case pdtra::cable_type::cvbs_yc:
+    printf("cvbs\n");
+    video_output::set_mode(video_output::ntsc_ni);
+    framebuffer.px_width = 320;
+    framebuffer.px_height = 240;
+    aica_sound.common.VREG(vreg::output_mode::cvbs_yc);
+    break;
+  default:
+    assert(false);
+    break;
+  }
+}
+
+void graphics_init(bool emulator)
 {
   holly.SOFTRESET = softreset::pipeline_soft_reset
 		  | softreset::ta_soft_reset;
@@ -140,7 +174,10 @@ void graphics_init()
   scaler_init();
   core_init();
   core_param_init();
-  spg_set_mode_640x480();
+
+  uint32_t cable_type = video_output::get_cable_type();
+  set_mode_by_cable_type(cable_type, emulator);
+
   framebuffer_init();
 
   background_parameter2(texture_memory_alloc.background[1].start,

src/graphics.hpp

@@ -10,6 +10,6 @@ constexpr int ta_cont_count = 1;
 extern volatile int next_frame;
 
 void graphics_interrupt(uint32_t istnrm);
-void graphics_init();
+void graphics_init(bool emulator);
 void graphics_event(ta_multiwriter& multi);
 void graphics_scene_init(const opb_size * opb_size);

src/main.cpp

@@ -6,10 +6,14 @@
 #include "sound.hpp"
 #include "scene/scene.hpp"
 #include "scene/logo/sound.hpp"
+#include "scene/emulator/scene.hpp"
 #include "scene/emulator/sound.hpp"
 #include "cursor.hpp"
 #include "input.hpp"
 
+#include "dve.hpp"
+#include "holly/video_output.hpp"
+
 #include "detect_emulator.hpp"
 
 void vbr100()
@@ -106,18 +110,29 @@ void main()
 {
   serial::init(0);
 
-  sound::init();
-  //bool emulator = detect_emulator();
-  //printf("emulator %d\n", emulator);
+  bool emulator = detect_emulator();
+  printf("emulator %d\n", emulator);
   printf("graphics_init\n");
-  graphics_init();
-  //scene::scene_init(scene::id::logo);
-  printf("scene_init\n");
-  scene::scene_init(scene::id::tracker);
-  printf("state_init\n");
+  graphics_init(emulator);
+  //scene::scene_init(scene::id::tracker);
+  //printf("state_init\n");
+
+  for (int i = 0; i < 10000000; i++) {
+    asm volatile ("nop");
+  }
+
+  sound::init();
   input::state_init();
   cursor::init();
 
+  if (emulator) {
+    scene::emulator::current_message_id = scene::emulator::counterfeit;
+    //scene::scene_init(scene::id::emulator);
+    scene::scene_init(scene::id::tracker);
+  } else {
+    scene::scene_init(scene::id::logo);
+  }
+
   //test_pattern();
 
   interrupt_init();

src/playlist.cpp

@@ -46,7 +46,7 @@ namespace playlist {
       .artist = "Cai",
       .title = "SummerDreamsDemov4",
       .start = (int)&_binary_xm_SummerDreamsDemoTrackv4_xm_start,
-      .cover_ix = scene::tracker::cover::tree,
+      .cover_ix = scene::tracker::cover::moonmountains,
     },
   };
 

src/scene/emulator/scene.cpp

@@ -33,32 +33,81 @@ namespace scene::emulator {
 
   static float intensity = 0.0;
 
+  struct message {
+    const char * title;
+    const int title_length;
+    const char ** paragraph;
+    const int paragraph_length;
+  };
+
+  const char * counterfeit_title = "Counterfeit Dreamcast Detected";
+  const int counterfeit_title_length = 30;
+  const char * counterfeit_paragraph[] = {
+    "Your counterfeit Dreamcast failed a CORE",
+    "rasterization test.",
+    "",
+    "Dreamcast emulator behavior is highly divergent",
+    "from a genuine Sega Dreamcast. Some emulator",
+    "authors deliberately choose to forgo accuracy,",
+    "and instead are developing a distinct and",
+    "unrelated fantasy-platform.",
+    "",
+    "This program only supports genuine Sega",
+    "Dreamcasts. Other fantasy-platforms and emulators",
+    "are not supported."
+  };
+  const int counterfeit_paragraph_length = (sizeof (counterfeit_paragraph)) / (sizeof (counterfeit_paragraph[0]));
+
+  const char * cvbs_title = "CVBS unsupported";
+  const int cvbs_title_length = 16;
+  const char * cvbs_paragraph[] = {
+    "Drawing the UI at",
+    "320x240 would require a",
+    "complete redesign."
+    "",
+    "Please switch to VGA."
+  };
+  const int cvbs_paragraph_length = (sizeof (cvbs_paragraph)) / (sizeof (cvbs_paragraph[0]));
+
+  const char * scart_title = "SCART unsupported";
+  const int scart_title_length = 17;
+
+  const message messages[] = {
+    [counterfeit] = {
+      counterfeit_title,
+      counterfeit_title_length,
+      counterfeit_paragraph,
+      counterfeit_paragraph_length,
+    },
+    [cvbs] = {
+      cvbs_title,
+      cvbs_title_length,
+      cvbs_paragraph,
+      cvbs_paragraph_length,
+    },
+    [scart] = {
+      scart_title,
+      scart_title_length,
+      cvbs_paragraph,
+      cvbs_paragraph_length,
+    },
+  };
+
+  int current_message_id = 0;
+
   void draw_title(ta_parameter_writer& writer, int color)
   {
     const font::font& face = font::fonts[font::font::ter_u32n];
     draw_glyph_global(writer, face);
 
-    int h_center = framebuffer.px_width / 2 - (30 * face.width) / 2;
-    draw_string(writer, face, "Counterfeit Dreamcast Detected", h_center, 35, 0.1, color << 16);
+    int length = messages[current_message_id].title_length;
+    int h_center = framebuffer.px_width / 2 - (length * face.width) / 2;
+    const char * title = messages[current_message_id].title;
+    draw_string(writer, face, title, h_center, 35, 0.1, color << 16);
   }
 
   void draw_paragraph(ta_parameter_writer& writer, int color)
   {
-    const char * paragraph[] = {
-      "Your counterfeit Dreamcast failed a CORE",
-      "rasterization test.",
-      "",
-      "Dreamcast emulator behavior is highly divergent",
-      "from a genuine Sega Dreamcast. Some emulator",
-      "authors deliberately choose to forgo accuracy,",
-      "and instead are developing a distinct and",
-      "unrelated fantasy-platform.",
-      "",
-      "This program only supports genuine Sega",
-      "Dreamcasts. Other fantasy-platforms and emulators",
-      "are not supported."
-    };
-    const int paragraph_length = (sizeof (paragraph)) / (sizeof (paragraph[0]));
 
     const font::font& face = font::fonts[font::font::ter_u24n];
     draw_glyph_global(writer, face);
@@ -68,7 +117,9 @@ namespace scene::emulator {
 
     int base_color = (color << 16) | (color << 8) | (color << 0);
 
-    for (int i = 0; i < paragraph_length; i++) {
+    int length = messages[current_message_id].paragraph_length;
+    const char ** paragraph = messages[current_message_id].paragraph;
+    for (int i = 0; i < length; i++) {
       const char * s = paragraph[i];
       draw_string(writer, face, s, x, y, 0.1, base_color);
       y += face.height;

src/scene/emulator/scene.hpp

@@ -5,6 +5,14 @@
 
 namespace scene::emulator {
 
+  enum message_id {
+    counterfeit,
+    cvbs,
+    scart,
+  };
+
+  extern int current_message_id;
+
   extern const struct scene::scene scene;
 
   void transfer(ta_multiwriter& multi);

src/scene/logo/scene.cpp

@@ -169,21 +169,21 @@ namespace scene::logo {
       .rx = 0,
       .ry = pi,
       .s = 0.01,
-      .duration = 1.0 / (3.670 * 60),
+      .duration = 1.0 / (3.670),
     },
     {
       .i = 1,
       .rx = 0,
       .ry = pi,
       .s = 0.1,
-      .duration = 1.0 / (10.988 * 60),
+      .duration = 1.0 / (10.988),
     },
     {
       .i = 1,
       .rx = pi / 4,
       .ry = -(pi - pi / 4),
       .s = 0.7,
-      .duration = 1.0 / (10 * 60),
+      .duration = 1.0 / (10),
     },
   };
 
@@ -199,9 +199,9 @@ namespace scene::logo {
       return f;
   }
 
-  static inline keyframe interpolate(const keyframe& a, const keyframe& b, const float dt)
+  static inline keyframe interpolate(const keyframe& a, const keyframe& b, const float dt, const float tick_div)
   {
-    float ratio = clamp(dt * a.duration);
+    float ratio = clamp(dt * a.duration * tick_div);
 
     float di = b.i - a.i;
     float drx = b.rx - a.rx;
@@ -213,7 +213,7 @@ namespace scene::logo {
       .rx = a.rx + drx * ratio,
       .ry = a.ry + dry * ratio,
       .s = a.s + ds * ratio,
-      .duration = a.duration,
+      .duration = 0,
     };
   }
 
@@ -224,15 +224,18 @@ namespace scene::logo {
 
     static int keyframe_ix = 0;
 
+    const float tick_div = framebuffer.px_height == 480 ? (1.0 / 60.0) : (1.0 / 120.0);
+    const float tick_mul = framebuffer.px_height == 480 ? 60 : 120;
+
     float dt = tick - last_tick;
-    if (dt * keyframes[keyframe_ix].duration >= 1) {
+    if (dt * keyframes[keyframe_ix].duration * tick_div >= 1) {
       if (keyframe_ix < (keyframes_length - 2)) {
         last_tick = tick;
         dt = 0;
         keyframe_ix += 1;
       }
     }
-    keyframe k = interpolate(keyframes[keyframe_ix], keyframes[keyframe_ix + 1], dt);
+    keyframe k = interpolate(keyframes[keyframe_ix], keyframes[keyframe_ix + 1], dt, tick_div);
 
     mat4x4 trans
       = translate(t)
@@ -245,11 +248,11 @@ namespace scene::logo {
       * rotate_y(k.ry)
       * scale((vec3){-1, -1, 1});
 
-    bool _32_wf = tick < (10.988 * 60);
-    bool bit_wf = tick < (11.908 * 60);
-    bool jam_wf = tick < (12.825 * 60);
+    bool _32_wf = tick < (10.988 * tick_mul);
+    bool bit_wf = tick < (11.908 * tick_mul);
+    bool jam_wf = tick < (12.825 * tick_mul);
 
-    bool diffuse = tick >= (14.608 * 60);
+    bool diffuse = tick >= (14.608 * tick_mul);
 
     render_mesh(multi.op, mesh_thirty_two, trans, k.i, _32_wf, diffuse);
     if (keyframe_ix > 0) {
@@ -271,7 +274,9 @@ namespace scene::logo {
 
   int done()
   {
-    if (tick >= (20.000 * 60)) {
+    float tick_mul = framebuffer.px_height == 480 ? 60 : 120;
+
+    if (tick >= (20.000 * tick_mul)) {
       int scene_id = ::scene::id::tracker;
       printf("scene transition to tracker %d\n", scene_id);
       return scene_id;

src/scene/tracker/cover.cpp

@@ -105,6 +105,17 @@ namespace scene::tracker::cover {
       .scale = 6,
       .color = {0x0d, 0x1a, 0x0e},
     },
+    [moonmountains] = {
+      .texture_offset = texture::offset::moonmountains,
+      .texture_size = tsp_instruction_word::texture_u_size::from_int(128)
+                    | tsp_instruction_word::texture_v_size::from_int(128),
+      .texture_width = 1.0f / 128.0f,
+      .texture_height = 1.0f / 128.0f,
+      .width = 72,
+      .height = 72,
+      .scale = 6,
+      .color = {0x00, 0x06, 0x1a},
+    },
   };
 
   constexpr inline vec3 transform_position_fs(const cover& cover,

src/scene/tracker/cover.hpp

@@ -13,6 +13,7 @@ namespace scene::tracker::cover {
     mossycottage,
     clocks,
     tree,
+    moonmountains,
   };
 
   void draw(ta_multiwriter& multi, float x, float y, bool zoom);

src/texture.cpp

@@ -22,6 +22,7 @@
 #include "cover/silvertrees.data.h"
 #include "cover/thebeach.data.h"
 #include "cover/tree.data.h"
+#include "cover/moonmountains.data.h"
 
 #include "printf/printf.h"
 
@@ -88,6 +89,11 @@ namespace texture {
       .size = reinterpret_cast<int>(&_binary_cover_tree_data_size),
       .offset = offset::tree,
     },
+    {
+      .start = reinterpret_cast<void *>(&_binary_cover_moonmountains_data_start),
+      .size = reinterpret_cast<int>(&_binary_cover_moonmountains_data_size),
+      .offset = offset::moonmountains,
+    },
   };
 
   const int textures_length = (sizeof (textures)) / (sizeof (textures[0]));

src/texture.hpp

@@ -20,6 +20,7 @@ namespace texture {
     constexpr int silvertrees  = redtree      + 32768;
     constexpr int thebeach     = silvertrees  + 32768;
     constexpr int tree         = thebeach     + 32768;
+    constexpr int moonmountains= tree         + 32768;
   };
 
   extern struct texture textures[];

xm_player.mk

@@ -18,7 +18,8 @@ TEXTURE_OBJ = \
 	cover/redtree.data.o \
 	cover/silvertrees.data.o \
 	cover/thebeach.data.o \
-	cover/tree.data.o
+	cover/tree.data.o \
+	cover/moonmountains.data.o
 
 PCM_OBJ = \
 	pcm/start3.adpcm.o \