You will need to "getframebuf" and do manipulation to it.OldPrisoneR wrote:I need to change framebuffer address, width, and may be color mode right in game via my prx plugin. The function sceDisplaySetFrameBuf doesn't take any effect if I call it in my plugin, so how can I fix it?
You may be haven't understood me. sceDisplayGetFrameBuf works nice. But I need to set up theKickinAezz wrote:You will need to "getframebuf" and do manipulation to it.OldPrisoneR wrote:I need to change framebuffer address, width, and may be color mode right in game via my prx plugin. The function sceDisplaySetFrameBuf doesn't take any effect if I call it in my plugin, so how can I fix it?
Code: Select all
#include <pspkernel.h>
#include <stdio.h>
#include <pspctrl.h>
#include <string.h>
PSP_MODULE_INFO("FSL", 0x1000, 1, 1);
...
int pwidth, pheight, bufferwidth, pixelformat, unk;
unsigned int* vram32;
sceDisplayGetFrameBuf((void*)&vram32, &bufferwidth, &pixelformat, &unk);
if ((pad.Buttons & PSP_CTRL_CROSS) && (pad.Buttons & PSP_CTRL_RIGHT))
{
//sceDisplaySetFrameBuf((void*)0x0a000000, 768, &pixelformat, &unk); // no effect :(
sceDisplay_driver_63E22A26(0,(void*)0x0a000000, 768, &pixelformat, &unk); // the same :(
};
...Code: Select all
...
sceDisplaySetFrameBuf(vram, 512, PSP_DISPLAY_PIXEL_FORMAT_8888, 1);
while(1)
{
//main loop, in which I never call sceDisplaySetFrameBuf
some piece of code
}
...Code: Select all
Remember that most programs change the buffer nearly every vblank. If you simply change it once, odds are you won't even see a flicker as the other program has already changed it a dozen times since you tried to change it. You HAVE to intercept their calls to set the framebuffer or your own will probably never have any affect.OldPrisoneR wrote: Now I try to change the frmbfr via my prx. Prx reports that it's trying to set the frmbfr, but frmbfr's not changed :(
So what's happening?
Code: Select all
...
//Global variable
int hookid;
...
int opsDisplaySetFrameBuf(void * topaddr, int bufferwidth, int pixelformat, int sync)
{
u32 k1 = pspSdkSetK1(0);
int res = callApiHook(hookid,0x0a000000, 768, pixelformat, sync);
myPrintf(1,1,"We are in hook");
pspSdkSetK1(k1);
return 0;
}
...
//Prx's main thread
sceKernelDelayThread(10*1000*1000); //Wait for 10 sec
hookid = apiHookByNid("sceDisplay_Service","sceDisplay",0x289D82FE,opsDisplaySetFrameBuf);
//here main loop begins...
...
int module_stop(SceSize args, void *argp)
{
unHookApi(hookid);
return 0;
};
I've not found any information about DmaLcdcBaseAddr and sceDmaLcdcSetBaseAddr. Does somebody know anything about it?The thing can be achieved by setting the DmaLcdcBaseAddr to your memory, destroying the function to avoid it being set again, and painting the screen (copying it to the true framebuffer that you set) in each vertical sync interrupt from the framebuffer that was set by sceDisplaySetFrameBuf but that didn't arrived to sceDmaLcdcSetBaseAddr because you avoided it.
Yes, you are right, in my eboot I call set frmbfr just once.jimparis wrote:if I'm understanding correctly, "their calls" do not exist, he's running his own game executable that called it once and never calls it again. Only two things running, and both are his code.J.F wrote:their calls to set the framebuffer
Code: Select all
int vshCtrlReadBufferPositiveFake(SceCtrlData *pad_data, int count)
{
u32 k1 = pspSdkSetK1(0);
int res = callApiHook(mainHookSave[0].hookid,pad_data, count);
add_values(pad_data, res, 0);
pspSdkSetK1(k1);
return res;
}Code: Select all
int (* sceDmacplusLcdcSetBaseAddr)(void *addr);
int MySetBaseAddr(void *addr)
{
// do something
return sceDmacplusLcdcSetBaseAddr(...);
}
void maincode()
{
sceDmacplusLcdcSetBaseAddr = (void *)sctrlHENFindFunction("sceLowIO_Driver", "sceDmacplus_driver", 0x29B50A82);
u32 import_address = FindImport("sceDisplay_Service", "sceDmacplus_driver", 0x29B50A82);
REDIRECT_FUNCTION(import_address, (u32)MySetBaseAddr);
sceKernelDcacheWritebackAll();
sceKernelIcacheClearAll();
}Code: Select all
#define J_OPCODE 0x08000000
#define NOP 0x00000000
#define REDIRECT_FUNCTION(a, f) _sw(J_OPCODE | (((u32)(f) >> 2) & 0x03ffffff), a); _sw(NOP, a+4);
u32 FindImport(char *prxname, char *importlib, u32 nid)
{
SceModule2 *pMod;
void *stubTab;
int stubLen;
pMod = sceKernelFindModuleByName(prxname);
if (!pMod)
return 0;
pMod = sceKernelFindModuleByUID(pMod->modid);
if(pMod != NULL)
{
int i = 0;
stubTab = pMod->stub_top;
stubLen = pMod->stub_size;
//printf("stubTab %p - stubLen %d\n", stubTab, stubLen);
while(i < stubLen)
{
int count;
struct PspModuleImport *pImp = (struct PspModuleImport *) (stubTab + i);
if(pImp->name)
{
//printf("Import Library %s, attr 0x%04X\n", pImp->name, pImp->attribute);
}
else
{
//printf("Import Library %s, attr 0x%04X\n", "Unknown", pImp->attribute);
}
if(pImp->funcCount > 0)
{
//printf("Function Imports:\n");
for(count = 0; count < pImp->funcCount; count++)
{
//printf("Entry %-3d: UID 0x%08X, Function 0x%08X\n", count+1, pImp->fnids[count], (u32) &pImp->funcs[count*2]);
if (pImp->name)
{
if (strcmp(pImp->name, importlib) == 0)
{
if (pImp->fnids[count] == nid)
{
return (u32)&pImp->funcs[count*2];
}
}
}
}
}
i += (pImp->entLen * 4);
}
}
return 0;
Code: Select all
#include <pspkernel.h>
#include <string.h>
#include <systemctrl.h>
PSP_MODULE_INFO("FuSa", 0x1000, 1, 1);
PSP_MAIN_THREAD_ATTR(0);
PSP_MAIN_THREAD_STACK_SIZE_KB(0);
#define J_OPCODE 0x08000000
#define NOP 0x00000000
#define REDIRECT_FUNCTION(a, f) _sw(J_OPCODE | (((u32)(f) >> 2) & 0x03ffffff), a); _sw(NOP, a+4);
struct PspModuleImport
{
const char *name;
unsigned short version;
unsigned short attribute;
unsigned char entLen;
unsigned char varCount;
unsigned short funcCount;
u32 *fnids;
u32 *funcs;
u32 *vnids;
u32 *vars;
} __attribute__((packed));
int (* sceDmacplusLcdcSetBaseAddr)(void *addr);
int (* sceDmacplusLcdcSetFormat)(int *pfrmt,int *dwidth,int *fwidth);
int MySetBaseAddr(void *addr)
{
char buf[64];
sprintf(buf,"X = %p",addr);
myPrintf(1,1,buf,0xFFFFFF,0xFFFFFF);
return sceDmacplusLcdcSetBaseAddr(0x4000000);
}
int MySetFormat(int pfrmt,int dwidth,int fwidth)
{
char buf[64];
sprintf(buf,"X = %d %d %d",pfrmt,dwidth,fwidth);
myPrintf(5,5,buf,0xFFFFFF,0xFFFFFF);
return sceDmacplusLcdcSetFormat(0,480,768);
}
u32 FindImport(char *prxname, char *importlib, u32 nid)
{
SceModule2 *pMod;
void *stubTab;
int stubLen;
pMod = sceKernelFindModuleByName(prxname);
if (!pMod)
return 0;
pMod = sceKernelFindModuleByUID(pMod->modid);
if(pMod != NULL)
{
int i = 0;
stubTab = pMod->stub_top;
stubLen = pMod->stub_size;
while(i < stubLen)
{
int count;
struct PspModuleImport *pImp = (struct PspModuleImport *) (stubTab + i);
if(pImp->funcCount > 0)
{
for(count = 0; count < pImp->funcCount; count++)
{
if (pImp->name)
{
if (strcmp(pImp->name, importlib) == 0)
{
if (pImp->fnids[count] == nid)
{
return (u32)&pImp->funcs[count*2];
}
}
}
}
}
i += (pImp->entLen * 4);
}
}
return 0;
}
int module_start(SceSize args, void *argp)
{
sceDmacplusLcdcSetBaseAddr = (void *)sctrlHENFindFunction("sceLowIO_Driver", "sceDmacplus_driver", 0x86106AD9);
u32 import_address = FindImport("sceDisplay_Service", "sceDmacplus_driver", 0x86106AD9);
REDIRECT_FUNCTION(import_address, (u32)MySetBaseAddr);
sceKernelDcacheWritebackAll();
sceKernelIcacheClearAll();
sceDmacplusLcdcSetFormat = (void *)sctrlHENFindFunction("sceLowIO_Driver", "sceDmacplus_driver", 0x1B9DA332);
u32 import_address2 = FindImport("sceDisplay_Service", "sceDmacplus_driver", 0x1B9DA332);
REDIRECT_FUNCTION(import_address2, (u32)MySetFormat);
sceKernelDcacheWritebackAll();
sceKernelIcacheClearAll();
return 0;
sceKernelExitDeleteThread(0);
}
int module_stop(SceSize args, void *argp)
{
return 0;
}
Code: Select all
int MySetBaseAddr(void *addr)
{
u32* vram = (u32*)addr;
short x;
for (x = 0; x < 480; x++) vram[x]=0xFFFFFFFF;
return sceDmacplusLcdcSetBaseAddr(addr);
}
You might think of adding support for the component cable as well. Some folks use the component cable, but their TV only supports interlaced mode. They would have the same trouble as someone using the composite cable. If you add component interlaced, they'd be able to use this... and I could also test it. :)OldPrisoneR wrote:hi guys, now I want to introduce my PRX.
http://www.mediafire.com/?djzmxjx0ga4
!!! It's not even alpha version, just proof of concept !!!
Let's take off sony's limitation together :)
And now what we've got:
This prx will allow you to play on TV via composite cable (It's for S&L :p)
It has a lot of bugs ), but works with some games )
See the readme for more info )
P.S.: If somebody want to join to this project - you are welcome :)
At any rate, try it and speak what do you think about it )
BTW I tested it with 3.80 M33-5 :) (but it must work with 3.7x too)
Yeah, J.F. I know it :) It's very confusing, heh heh...the buttons used to control this are confusing and interfere with the games.
Yes, I'll add pr. TV fullscreen support :)With that in mind, you might also want to eventually add progressive TV support as well.