sdl: WIP removed old surface, try to use Renderer

[rafal1137]

Main reason for this one is to eliminate issues with Nvidia Graphic Drivers when legacy is compiled using not bundled lib.

In my case Nvidia is using nouveau. I know its bad one should test with a better one.

[rafal1137]

The more I digged into SDL. Its gets clearly there is something wrong with using SDL_LoadBMP and those too

	SDL_RWops *rw = SDL_RWFromConstMem(src_sdl_splash_bmp, sizeof(src_sdl_splash_bmp));
	SDL_Surface* surface = SDL_LoadBMP_RW(rw, 1);

Even I did tried to use some sdl render textures tutorials within our codebase and everytime I am getting white image
I am more convinced of using opengl implementation of drawing textures.

[rafal1137]

I will post dissembled part of the famous glTexImage2D function

#8  0xe2c03b06 in Upload32 (data=0xffffc30c, width=8, height=8, mipmap=qfalse, picmip=qfalse, lightMap=qfalse, format=0x5937c898, pUploadWidth=0x5937c888, pUploadHeight=0x5937c88c, noCompress=qtrue)
    at /home/rafal/Pobrane/etlegacy/src/renderer/tr_image.c:771
771                             glTexImage2D(GL_TEXTURE_2D, 0, internalFormat, scaled_width, scaled_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
(gdb) disassemble glTexImage2D
Dump of assembler code for function glTexImage2D:
   0xe2bb4540 <+0>:     mov    %gs:0xffffff7c,%eax
   0xe2bb4546 <+6>:     jmp    *0x2e0(%eax)
   0xe2bb454c <+12>:    cmp    (%edx),%al
   0xe2bb454e <+14>:    add    %cl,0x3880(%ebx)
   0xe2bb4554 <+20>:    add    %ah,-0x75(%ebp)
   0xe2bb4557 <+23>:    add    %bh,%bh
   0xe2bb4559 <+25>:    mov    0x28a8,%al
   0xe2bb455e <+30>:    xchg   %ax,%ax   <= Can it swap between same operands ?
End of assembler dump.

PS: Check <=

[rafal1137]

Solved by Jacker closing.