void Surface::Set(u32 sw, u32 sh, const SurfaceFormat & fm)
{
FreeSurface(*this);
#if SDL_VERSION_ATLEAST(2, 0, 0)
surface = SDL_CreateRGBSurface(0, sw, sh, fm.depth, fm.rmask, fm.gmask, fm.bmask, fm.amask);
#else
surface = SDL_CreateRGBSurface(SDL_SWSURFACE, sw, sh, fm.depth, fm.rmask, fm.gmask, fm.bmask, fm.amask);
#endif
if(!surface)
Error::Except(__FUNCTION__, SDL_GetError());
if(8 == depth())
{
SetPalette();
Fill(fm.ckey);
SetColorKey(fm.ckey);
}
else
if(amask())
{
#if SDL_VERSION_ATLEAST(2, 0, 0)
Fill(RGBA(0, 0, 0, 0)); // no color key only amask
#else
Fill(RGBA(fm.ckey.r(), fm.ckey.g(), fm.ckey.b(), 0));
SetColorKey(fm.ckey);
#endif
}
else
if(fm.ckey.pack())
{
Fill(fm.ckey);
SetColorKey(fm.ckey);
}
if(amask())
{
#if SDL_VERSION_ATLEAST(2, 0, 0)
SDL_SetSurfaceBlendMode(surface, SDL_BLENDMODE_BLEND);
#else
SDL_SetAlpha(surface, SDL_SRCALPHA, 255);
#endif
}
else
{
#if SDL_VERSION_ATLEAST(2, 0, 0)
SDL_SetSurfaceBlendMode(surface, SDL_BLENDMODE_NONE);
#else
SDL_SetAlpha(surface, 0, 0);
#endif
}
}
static void __init
sx164_init_arch(void)
{
/*
*/
struct percpu_struct *cpu = (struct percpu_struct*)
((char*)hwrpb + hwrpb->processor_offset);
if (amask(AMASK_MAX) != 0
&& alpha_using_srm
&& (cpu->pal_revision & 0xffff) <= 0x117) {
__asm__ __volatile__(
"lda $16,8($31)\n"
"call_pal 9\n" /* */
".long 0x64000118\n\n" /* */
"ldah $16,(1<<(19-16))($31)\n"
"or $0,$16,$0\n" /* */
".long 0x74000118\n" /* */
"lda $16,9($31)\n"
"call_pal 9" /* */
: : : "$0", "$16");
printk("PCA56 MVI set enabled\n");
}
asmlinkage void
do_entArith(unsigned long summary, unsigned long write_mask,
struct pt_regs *regs)
{
long si_code = FPE_FLTINV;
siginfo_t info;
if (summary & 1) {
/* Software-completion summary bit is set, so try to
emulate the instruction. If the processor supports
precise exceptions, we don't have to search. */
if (!amask(AMASK_PRECISE_TRAP))
si_code = alpha_fp_emul(regs->pc - 4);
else
si_code = alpha_fp_emul_imprecise(regs, write_mask);
if (si_code == 0)
return;
}
die_if_kernel("Arithmetic fault", regs, 0, NULL);
info.si_signo = SIGFPE;
info.si_errno = 0;
info.si_code = si_code;
info.si_addr = (void __user *) regs->pc;
send_sig_info(SIGFPE, &info, current);
}
static void __init
sx164_init_arch(void)
{
/*
* OSF palcode v1.23 forgets to enable PCA56 Motion Video
* Instructions. Let's enable it.
* We have to check palcode revision because CSERVE interface
* is subject to change without notice. For example, it
* has been changed completely since v1.16 (found in MILO
* distribution). -ink
*/
struct percpu_struct *cpu = (struct percpu_struct*)
((char*)hwrpb + hwrpb->processor_offset);
if (amask(AMASK_MAX) != 0
&& alpha_using_srm
&& (cpu->pal_revision & 0xffff) <= 0x117) {
__asm__ __volatile__(
"lda $16,8($31)\n"
"call_pal 9\n" /* Allow PALRES insns in kernel mode */
".long 0x64000118\n\n" /* hw_mfpr $0,icsr */
"ldah $16,(1<<(19-16))($31)\n"
"or $0,$16,$0\n" /* set MVE bit */
".long 0x74000118\n" /* hw_mtpr $0,icsr */
"lda $16,9($31)\n"
"call_pal 9" /* Disable PALRES insns */
: : : "$0", "$16");
printk("PCA56 MVI set enabled\n");
}
asmlinkage void
do_entArith(unsigned long summary, unsigned long write_mask,
struct pt_regs *regs)
{
long si_code = FPE_FLTINV;
siginfo_t info;
if (summary & 1) {
/*
*/
if (!amask(AMASK_PRECISE_TRAP))
si_code = alpha_fp_emul(regs->pc - 4);
else
si_code = alpha_fp_emul_imprecise(regs, write_mask);
if (si_code == 0)
return;
}
die_if_kernel("Arithmetic fault", regs, 0, NULL);
info.si_signo = SIGFPE;
info.si_errno = 0;
info.si_code = si_code;
info.si_addr = (void __user *) regs->pc;
send_sig_info(SIGFPE, &info, current);
}
asmlinkage void
do_entArith(unsigned long summary, unsigned long write_mask,
unsigned long a2, unsigned long a3, unsigned long a4,
unsigned long a5, struct pt_regs regs)
{
if (summary & 1) {
/* Software-completion summary bit is set, so try to
emulate the instruction. */
if (!amask(AMASK_PRECISE_TRAP)) {
/* 21264 (except pass 1) has precise exceptions. */
if (alpha_fp_emul(regs.pc - 4))
return;
} else {
if (alpha_fp_emul_imprecise(®s, write_mask))
return;
}
}
#if 0
printk("%s: arithmetic trap at %016lx: %02lx %016lx\n",
current->comm, regs.pc, summary, write_mask);
#endif
die_if_kernel("Arithmetic fault", ®s, 0, 0);
send_sig(SIGFPE, current, 1);
}
/* format surface */
void Surface::SetDisplayFormat(void)
{
if(surface)
{
SDL_Surface *osurface = surface;
surface = amask() ? SDL_DisplayFormatAlpha(osurface) : SDL_DisplayFormat(osurface);
if(osurface) SDLFreeSurface(osurface);
}
}
/* set color key */
void Surface::SetDefaultColorKey(void)
{
if(isValid())
{
const u32 clkey = amask() ? SDL_MapRGBA(surface->format, 0xFF, 0, 0xFF, 0) :
SDL_MapRGB(surface->format, 0xFF, 0, 0xFF);
Fill(clkey);
SetColorKey(clkey);
}
}
u32 Surface::GetColorKey(void) const
{
#if SDL_VERSION_ATLEAST(2, 0, 0)
if(isValid() && ! amask())
{
u32 res = 0;
SDL_GetColorKey(surface, &res);
return res;
}
return 0;
#else
return isValid() && (surface->flags & SDL_SRCCOLORKEY) ? surface->format->colorkey : 0;
#endif
}
RGBA Surface::GetRGB(u32 pixel) const
{
u8 r = 0;
u8 g = 0;
u8 b = 0;
u8 a = 0;
if(amask())
{
SDL_GetRGBA(pixel, surface->format, &r, &g, &b, &a);
return RGBA(r, g, b, a);
}
SDL_GetRGB(pixel, surface->format, &r, &g, &b);
return RGBA(r, g, b);
}
av_cold void ff_idctdsp_init_alpha(IDCTDSPContext *c, AVCodecContext *avctx,
unsigned high_bit_depth)
{
/* amask clears all bits that correspond to present features. */
if (amask(AMASK_MVI) == 0) {
c->put_pixels_clamped = put_pixels_clamped_mvi_asm;
c->add_pixels_clamped = add_pixels_clamped_mvi_asm;
}
put_pixels_clamped_axp_p = c->put_pixels_clamped;
add_pixels_clamped_axp_p = c->add_pixels_clamped;
if (!high_bit_depth && !avctx->lowres &&
(avctx->idct_algo == FF_IDCT_AUTO ||
avctx->idct_algo == FF_IDCT_SIMPLEALPHA)) {
c->idct_put = ff_simple_idct_put_axp;
c->idct_add = ff_simple_idct_add_axp;
c->idct = ff_simple_idct_axp;
}
}
void Surface::GetRGB(u32 pixel, u8 *r, u8 *g, u8 *b, u8 *a) const
{
return amask() && a ? SDL_GetRGBA(pixel, surface->format, r, g, b, a) : SDL_GetRGB(pixel, surface->format, r, g, b);
}
u32 Surface::MapRGB(u8 r, u8 g, u8 b, u8 a) const
{
return amask() ? SDL_MapRGBA(surface->format, r, g, b, a) : SDL_MapRGB(surface->format, r, g, b);
}
u32 Surface::MapRGB(const RGBA & color) const
{
return amask() ? SDL_MapRGBA(surface->format, color.r(), color.g(), color.b(), color.a()) : SDL_MapRGB(surface->format, color.r(), color.g(), color.b());
}