From 5a079a2d114f96d4847d1ee305d5b7c16eeec50e Mon Sep 17 00:00:00 2001
From: 3gg <3gg@shellblade.net>
Date: Sat, 27 Dec 2025 12:03:39 -0800
Subject: Initial commit

---
 .../SDL-3.2.8/src/video/vita/SDL_vitaframebuffer.c | 116 +++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 contrib/SDL-3.2.8/src/video/vita/SDL_vitaframebuffer.c

(limited to 'contrib/SDL-3.2.8/src/video/vita/SDL_vitaframebuffer.c')

diff --git a/contrib/SDL-3.2.8/src/video/vita/SDL_vitaframebuffer.c b/contrib/SDL-3.2.8/src/video/vita/SDL_vitaframebuffer.c
new file mode 100644
index 0000000..b9bfb50
--- /dev/null
+++ b/contrib/SDL-3.2.8/src/video/vita/SDL_vitaframebuffer.c
@@ -0,0 +1,116 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#ifdef SDL_VIDEO_DRIVER_VITA
+
+#include "SDL_vitavideo.h"
+
+#include <psp2/kernel/sysmem.h>
+
+#define SCREEN_W             960
+#define SCREEN_H             544
+#define ALIGN(x, a)          (((x) + ((a)-1)) & ~((a)-1))
+#define DISPLAY_PIXEL_FORMAT SCE_DISPLAY_PIXELFORMAT_A8B8G8R8
+
+void *vita_gpu_alloc(unsigned int type, unsigned int size, SceUID *uid)
+{
+    void *mem;
+
+    if (type == SCE_KERNEL_MEMBLOCK_TYPE_USER_CDRAM_RW) {
+        size = ALIGN(size, 256 * 1024);
+    } else {
+        size = ALIGN(size, 4 * 1024);
+    }
+
+    *uid = sceKernelAllocMemBlock("gpu_mem", type, size, NULL);
+
+    if (*uid < 0) {
+        return NULL;
+    }
+
+    if (sceKernelGetMemBlockBase(*uid, &mem) < 0) {
+        return NULL;
+    }
+
+    return mem;
+}
+
+void vita_gpu_free(SceUID uid)
+{
+    void *mem = NULL;
+    if (sceKernelGetMemBlockBase(uid, &mem) < 0) {
+        return;
+    }
+    sceKernelFreeMemBlock(uid);
+}
+
+bool VITA_CreateWindowFramebuffer(SDL_VideoDevice *_this, SDL_Window *window, SDL_PixelFormat *format, void **pixels, int *pitch)
+{
+    SDL_WindowData *data = window->internal;
+    SceDisplayFrameBuf framebuf;
+
+    *format = SDL_PIXELFORMAT_ABGR8888;
+    *pitch = SCREEN_W * 4;
+
+    data->buffer = vita_gpu_alloc(
+        SCE_KERNEL_MEMBLOCK_TYPE_USER_CDRAM_RW,
+        4 * SCREEN_W * SCREEN_H,
+        &data->buffer_uid);
+
+    // SDL_memset the buffer to black
+    SDL_memset(data->buffer, 0x0, SCREEN_W * SCREEN_H * 4);
+
+    SDL_memset(&framebuf, 0x00, sizeof(SceDisplayFrameBuf));
+    framebuf.size = sizeof(SceDisplayFrameBuf);
+    framebuf.base = data->buffer;
+    framebuf.pitch = SCREEN_W;
+    framebuf.pixelformat = DISPLAY_PIXEL_FORMAT;
+    framebuf.width = SCREEN_W;
+    framebuf.height = SCREEN_H;
+    sceDisplaySetFrameBuf(&framebuf, SCE_DISPLAY_SETBUF_NEXTFRAME);
+
+    *pixels = data->buffer;
+
+    return true;
+}
+
+bool VITA_UpdateWindowFramebuffer(SDL_VideoDevice *_this, SDL_Window *window, const SDL_Rect *rects, int numrects)
+{
+    // do nothing
+    return true;
+}
+
+void VITA_DestroyWindowFramebuffer(SDL_VideoDevice *_this, SDL_Window *window)
+{
+    SDL_WindowData *data = window->internal;
+
+    if (!data) {
+        // The window wasn't fully initialized
+        return;
+    }
+
+    vita_gpu_free(data->buffer_uid);
+    data->buffer = NULL;
+    return;
+}
+
+#endif // SDL_VIDEO_DRIVER_VITA
-- 
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