mirror of
https://github.com/Relintai/sdl2_frt.git
synced 2024-12-20 22:16:49 +01:00
117 lines
3.2 KiB
C
117 lines
3.2 KiB
C
/*
|
|
Simple DirectMedia Layer
|
|
Copyright (C) 1997-2020 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(SceKernelMemBlockType 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
|
|
);
|
|
|
|
// 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: */
|