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Native framebuffer for software renderer
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121
src/video/vita/SDL_vitaframebuffer.c
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121
src/video/vita/SDL_vitaframebuffer.c
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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#if SDL_VIDEO_DRIVER_VITA
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#include "SDL_vitavideo.h"
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#include <psp2/kernel/sysmem.h>
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#define SCREEN_W 960
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#define SCREEN_H 544
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#define ALIGN(x, a) (((x) + ((a) - 1)) & ~((a) - 1))
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#define DISPLAY_PIXEL_FORMAT SCE_DISPLAY_PIXELFORMAT_A8B8G8R8
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void *vita_gpu_alloc(SceKernelMemBlockType type, unsigned int size, SceUID *uid)
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{
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void *mem;
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if (type == SCE_KERNEL_MEMBLOCK_TYPE_USER_CDRAM_RW) {
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size = ALIGN(size, 256*1024);
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} else {
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size = ALIGN(size, 4*1024);
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}
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*uid = sceKernelAllocMemBlock("gpu_mem", type, size, NULL);
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if (*uid < 0)
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return NULL;
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if (sceKernelGetMemBlockBase(*uid, &mem) < 0)
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return NULL;
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return mem;
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}
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void vita_gpu_free(SceUID uid)
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{
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void *mem = NULL;
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if (sceKernelGetMemBlockBase(uid, &mem) < 0)
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return;
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sceKernelFreeMemBlock(uid);
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}
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int VITA_CreateWindowFramebuffer(_THIS, SDL_Window * window, Uint32 * format, void ** pixels, int *pitch)
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{
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SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
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SceDisplayFrameBuf framebuf;
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*format = SDL_PIXELFORMAT_ABGR8888;
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*pitch = SCREEN_W * 4;
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data->buffer = vita_gpu_alloc(
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SCE_KERNEL_MEMBLOCK_TYPE_USER_CDRAM_RW,
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4 * SCREEN_W * SCREEN_H,
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&data->buffer_uid
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);
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// memset the buffer to black
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for (int y = 0; y < SCREEN_H; y++) {
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unsigned int *row = (unsigned int *)data->buffer + y * SCREEN_W;
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for (int x = 0; x < SCREEN_W; x++) {
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row[x] = 0xff0000FF;
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}
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}
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SDL_memset(&framebuf, 0x00, sizeof(SceDisplayFrameBuf));
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framebuf.size = sizeof(SceDisplayFrameBuf);
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framebuf.base = data->buffer;
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framebuf.pitch = SCREEN_W;
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framebuf.pixelformat = DISPLAY_PIXEL_FORMAT;
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framebuf.width = SCREEN_W;
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framebuf.height = SCREEN_H;
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sceDisplaySetFrameBuf(&framebuf, SCE_DISPLAY_SETBUF_NEXTFRAME);
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*pixels = data->buffer;
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return 0;
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}
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int VITA_UpdateWindowFramebuffer(_THIS, SDL_Window * window, const SDL_Rect * rects, int numrects)
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{
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// do nothing
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return 0;
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}
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void VITA_DestroyWindowFramebuffer(_THIS, SDL_Window * window)
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{
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SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
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if (!data) {
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/* The window wasn't fully initialized */
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return;
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}
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vita_gpu_free(data->buffer_uid);
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data->buffer = NULL;
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return;
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}
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#endif /* SDL_VIDEO_DRIVER_VITA */
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/* vi: set ts=4 sw=4 expandtab: */
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27
src/video/vita/SDL_vitaframebuffer.h
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27
src/video/vita/SDL_vitaframebuffer.h
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@ -0,0 +1,27 @@
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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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extern int VITA_CreateWindowFramebuffer(_THIS, SDL_Window * window, Uint32 * format, void ** pixels, int *pitch);
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extern int VITA_UpdateWindowFramebuffer(_THIS, SDL_Window * window, const SDL_Rect * rects, int numrects);
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extern void VITA_DestroyWindowFramebuffer(_THIS, SDL_Window * window);
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/* vi: set ts=4 sw=4 expandtab: */
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@ -37,6 +37,7 @@
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#include "SDL_vitatouch.h"
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#include "SDL_vitakeyboard.h"
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#include "SDL_vitamouse_c.h"
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#include "SDL_vitaframebuffer.h"
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#if SDLVIDEO_OPENGL_ES2
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#include "SDL_vitagl_c.h"
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#endif
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device->DestroyWindow = VITA_DestroyWindow;
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device->GetWindowWMInfo = VITA_GetWindowWMInfo;
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device->CreateWindowFramebuffer = VITA_CreateWindowFramebuffer;
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device->UpdateWindowFramebuffer = VITA_UpdateWindowFramebuffer;
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device->DestroyWindowFramebuffer = VITA_DestroyWindowFramebuffer;
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#if SDL_VIDEO_OPENGL_ES2
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device->GL_LoadLibrary = VITA_GL_LoadLibrary;
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device->GL_GetProcAddress = VITA_GL_GetProcAddress;
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@ -25,6 +25,8 @@
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#include "../../SDL_internal.h"
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#include "../SDL_sysvideo.h"
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#include <psp2/types.h>
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#include <psp2/display.h>
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#include <psp2/ime_dialog.h>
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typedef struct SDL_VideoData
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wchar_t ime_buffer[SCE_IME_DIALOG_MAX_TEXT_LENGTH];
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SDL_bool ime_active;
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} SDL_VideoData;
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typedef struct SDL_WindowData
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{
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SDL_bool uses_gles;
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SceUID buffer_uid;
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void* buffer;
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} SDL_WindowData;
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