| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2022 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" |
| |
| #if 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); |
| } |
| |
| int VITA_CreateWindowFramebuffer(_THIS, SDL_Window * window, Uint32 * format, void ** pixels, int *pitch) |
| { |
| SDL_WindowData *data = (SDL_WindowData *) window->driverdata; |
| 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 0; |
| } |
| |
| int VITA_UpdateWindowFramebuffer(_THIS, SDL_Window * window, const SDL_Rect * rects, int numrects) |
| { |
| // do nothing |
| return 0; |
| } |
| |
| void VITA_DestroyWindowFramebuffer(_THIS, SDL_Window * window) |
| { |
| SDL_WindowData *data = (SDL_WindowData *) window->driverdata; |
| |
| if (!data) { |
| /* The window wasn't fully initialized */ |
| return; |
| } |
| |
| vita_gpu_free(data->buffer_uid); |
| data->buffer = NULL; |
| return; |
| } |
| |
| #endif /* SDL_VIDEO_DRIVER_VITA */ |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |