[SDL2] [PS2] Framebuffer resolution + 240p/480p + PAL support

docs/README-ps2.md

@@ -11,14 +11,17 @@ Credit to
 ## Building
 To build SDL2 library for the PS2, make sure you have the latest PS2Dev status and run:
 ```bash
-cmake -S. -Bbuild -DCMAKE_BUILD_TYPE=Release -DCMAKE_TOOLCHAIN_FILE=$PS2DEV/ps2sdk/ps2dev.cmake
+cmake -S. -Bbuild -DCMAKE_BUILD_TYPE=Release -DCMAKE_TOOLCHAIN_FILE=$PS2DEV/share/ps2dev.cmake
 cmake --build build
 cmake --install build
 ```
 
 ## Hints
-The PS2 port has a special Hint for having a dynamic VSYNC. The Hint is `SDL_HINT_PS2_DYNAMIC_VSYNC`.
-If you enabled the dynamic vsync having as well `SDL_RENDERER_PRESENTVSYNC` enabled, then if the app is not able to run at 60 FPS, automatically the `vsync` will be disabled having a better performance, instead of droping FPS to 30.
+- `SDL_HINT_PS2_DYNAMIC_VSYNC`: Hint for having a dynamic VSYNC. If you enabled the dynamic vsync having as well `SDL_RENDERER_PRESENTVSYNC` enabled, then if the app is not able to run at 60 FPS, automatically the `vsync` will be disabled having a better performance, instead of droping FPS to 30.
+- `SDL_HINT_PS2_GS_WIDTH`: Width of the framebuffer. Defaults to 640.
+- `SDL_HINT_PS2_GS_HEIGHT`: Height of the framebuffer. Defaults to 448.
+- `SDL_HINT_PS2_GS_PROGRESSIVE`: Whether to use progressive, instead of interlaced. Defaults to 0.
+- `SDL_HINT_PS2_GS_MODE`: Regional standard of the signal. "NTSC" (60hz), "PAL" (50hz) or "" (the console's region, default).
 
 ## Notes
 If you trying to debug a SDL app through [ps2client](https://github.com/ps2dev/ps2client) you need to avoid the IOP reset, otherwise you will lose the conection with your computer.

include/SDL_hints.h

@@ -2038,6 +2038,37 @@ extern "C" {
  */
 #define SDL_HINT_PS2_DYNAMIC_VSYNC    "SDL_PS2_DYNAMIC_VSYNC"
 
+/**
+ * Variable controlling the width of the PS2's framebuffer in pixels
+ *
+ * By default, this variable is "640"
+ */
+#define SDL_HINT_PS2_GS_WIDTH    "SDL_PS2_GS_WIDTH"
+
+/**
+ * Variable controlling the height of the PS2's framebuffer in pixels
+ *
+ * By default, this variable is "448"
+ */
+#define SDL_HINT_PS2_GS_HEIGHT    "SDL_PS2_GS_HEIGHT"
+
+/**
+ * Variable controlling whether the signal is interlaced or progressive
+ *
+ * - "0": Image is interlaced. Default
+ * - "1": Image is progressive
+ */
+#define SDL_HINT_PS2_GS_PROGRESSIVE    "SDL_PS2_GS_PROGRESSIVE"
+
+/**
+ * Variable controlling the video mode of the console
+ *
+ * - "": Console-native. Default
+ * - "NTSC": 60hz region
+ * - "PAL": 50hz region
+ */
+#define SDL_HINT_PS2_GS_MODE    "SDL_PS2_GS_MODE"
+
 /**
  * A variable to control whether the return key on the soft keyboard should
  * hide the soft keyboard on Android and iOS.

src/render/ps2/SDL_render_ps2.c

@@ -609,6 +609,7 @@ static int PS2_CreateRenderer(SDL_Renderer *renderer, SDL_Window *window, Uint32
     GSGLOBAL *gsGlobal;
     ee_sema_t sema;
     SDL_bool dynamicVsync;
+    int w,h;
 
     data = (PS2_RenderData *)SDL_calloc(1, sizeof(*data));
     if (!data) {
@@ -624,8 +625,37 @@ static int PS2_CreateRenderer(SDL_Renderer *renderer, SDL_Window *window, Uint32
 
     gsGlobal = gsKit_init_global_custom(RENDER_QUEUE_OS_POOLSIZE, RENDER_QUEUE_PER_POOLSIZE);
 
-    gsGlobal->Mode = GS_MODE_NTSC;
-    gsGlobal->Height = 448;
+    // GS interlaced/progressive
+    if (SDL_GetHintBoolean(SDL_HINT_PS2_GS_PROGRESSIVE,0)) {
+        gsGlobal->Interlace = GS_NONINTERLACED;
+    } else {
+        gsGlobal->Interlace = GS_INTERLACED;
+    }
+
+    // GS width/height
+    if (
+        SDL_GetHint(SDL_HINT_PS2_GS_WIDTH) == NULL ||
+        sscanf(SDL_GetHint(SDL_HINT_PS2_GS_WIDTH),"%d",&w) != 1
+    ) { w = 640; }
+
+    if (
+        SDL_GetHint(SDL_HINT_PS2_GS_HEIGHT) == NULL ||
+        sscanf(SDL_GetHint(SDL_HINT_PS2_GS_HEIGHT),"%d",&h) != 1
+    ) { h = 448; }
+
+    gsGlobal->Width = w;
+    gsGlobal->Height = h;
+
+    // GS region
+    if (SDL_GetHint(SDL_HINT_PS2_GS_MODE) != NULL) {
+        if (strcmp(SDL_GetHint(SDL_HINT_PS2_GS_MODE),"NTSC") == 0) {
+            gsGlobal->Mode = GS_MODE_NTSC;
+        }
+
+        if (strcmp(SDL_GetHint(SDL_HINT_PS2_GS_MODE),"PAL") == 0) {
+            gsGlobal->Mode = GS_MODE_PAL;
+        }
+    }
 
     gsGlobal->PSM = GS_PSM_CT24;
     gsGlobal->PSMZ = GS_PSMZ_16S;