/
video.h
1832 lines (1506 loc) · 50.1 KB
/
video.h
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// This file is part of: Geiss screensaver and Winamp music visualization plug-in
// ___ ___ ___ ___ ___
// / __| __|_ _/ __/ __|
// | (_ | _| | |\__ \__ \
// \___|___|___|___/___/
// 3-Clause BSD License
//
// Copyright (c) 1998-2022 Ryan Geiss (@geissomatik)
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef GEISS_VIDEO
#define GEISS_VIDEO 1
// this file contains:
// 1. merge_all_vs() functions (320 and regular)
// 2. palette functions
// 3. loadimage and screenshot functions
#define y_inc 18
#define MY_TEXT_COLOR RGB(255, 240, 125) //RGB( 140, 140, 240 )
#if PLUGIN
void Check_For_New_Song_Title()
{
// get song name (as a text string)
char g_newtitle[256];
if (g_bDisableSongTitlePopups) return;
if (g_hit >= 0) return;
if (1)//(intframe%5)==0 || g_hit>0)//==g_song_tooltip_frames)
{
::GetWindowText(this_mod_hwndParent, g_newtitle, sizeof(g_newtitle));
// remove '- Winamp' or '- Winamp [Paused]' at end
if (strlen(g_newtitle) > 8)
{
int check_pos = strlen(g_newtitle) - 8;
if (strcmp("- Winamp", (char *)(g_newtitle + check_pos)) == 0)
g_newtitle[check_pos] = 0;
}
if (strlen(g_newtitle) > 17)
{
int check_pos = strlen(g_newtitle) - 17;
if (strcmp("- Winamp [Paused]", (char *)(g_newtitle + check_pos)) == 0)
g_newtitle[check_pos] = 0;
}
// remove song # and period
if (strlen(g_newtitle) > 6)
{
int dot_pos = 1;
int len = strlen(g_newtitle);
while (dot_pos < len && dot_pos < 6)
{
if (g_newtitle[dot_pos-1] == '.' && g_newtitle[dot_pos] == ' ')
{
for (int i = dot_pos; i < len; i++)
g_newtitle[i - dot_pos] = g_newtitle[i];
g_newtitle[len - dot_pos] = 0;
break;
}
dot_pos++;
}
}
if (strcmp(g_newtitle, g_song_title) != 0)
{
g_title_R = 128 + rand() % 99;
g_title_G = 128 + rand() % 99;
g_title_B = 128 + rand() % 99;
strcpy(g_song_title, g_newtitle);
if (!g_LastMessageWasCustom)
{
g_hit = g_song_tooltip_frames*fps_at_last_mode_switch/30.0f;
}
g_LastMessageWasCustom = false;
}
}
}
#endif
#if (GRFX==1)
void Plop_Songtitle_Using_Backbuffer_As_Scratch(int phase)
{
// phase = 0: we haven't copied VS to backbuffer yet; so we must textout to backbuffer & copy to VS
// phase = 1: we textout to the back buffer just before the page flip
/*
#if PLUGIN
if (g_bDisableSongTitlePopups)
{
return;
}
#endif
*/
// merge into VS
if (g_hit >= 2)// && g_hit <= g_song_tooltip_frames)
{
HDC hdc;
//g_song_title_y = FXH/2;
//g_song_title_x = FXW/2;
HRESULT ddrval;
LPDIRECTDRAWSURFACE lpDDSurf = lpDDSBack;
if ((ddrval = lpDDSurf->GetDC(&hdc)) == DD_OK)
{
// load font if not loaded
if ( g_title_font==NULL &&
#if PLUGIN
!g_bDisableSongTitlePopups &&
#endif
FXW>320 )
{
dumpmsg("calling CreateFont()");
g_title_font = CreateFont(
// best combination so far: 24x10 with 700 thickness
24, //height - 24
10, //width - 10
0,
0,
700, // thickness/strength - 400 normal, 700 bold
false, //italics - looks good!
false, //underline
false, //strikethrough
DEFAULT_CHARSET,
OUT_DEFAULT_PRECIS,
CLIP_DEFAULT_PRECIS,
DEFAULT_QUALITY,
VARIABLE_PITCH | FF_DONTCARE,
NULL
);
dumpmsg("finished CreateFont()");
}
if (g_title_font)
{
SelectObject(hdc, g_title_font);
}
SIZE siz;
::GetTextExtentPoint(hdc, g_song_title, lstrlen(g_song_title), &siz);
int y_range = (FXH - FX_YCUT_HIDE*2 - siz.cy);
int x_range = (FXW-siz.cx);
static int g_hit_prev = -1;
if (g_hit_prev < g_hit)//(g_hit==g_song_tooltip_frames)
{
if (x_range > 0)
g_song_title_x = (rand() % (x_range/4)) +
(rand() % (x_range/4)) +
(rand() % (x_range/4)) +
(rand() % (x_range/4));
else
g_song_title_x = 0;
g_song_title_y = FX_YCUT_HIDE +
(rand() % (y_range/4)) +
(rand() % (y_range/4)) +
(rand() % (y_range/4)) +
(rand() % (y_range/4));
//g_song_title_x = x_range/3 + rand() % (x_range/3);
//g_song_title_y = FX_YCUT_HIDE + y_range/3 + rand() % (y_range/3);
}
g_hit_prev = g_hit;
//SetBkColor( hdc, RGB( 1, 1, 1 ) );
SetBkColor( hdc, RGB( 0, 0, 0 ) ); // hopefully fixes the white-palette WHITE BLOCK shown during song title popups
if (g_hit==2)
//if (g_hit>=2 && g_hit<=8)
{
SetBkMode( hdc, OPAQUE );
}
else
{
SetBkMode( hdc, TRANSPARENT );
}
if (g_hit>2)
//if (g_hit>8)
{
SetTextColor( hdc, RGB( 20, 20, 20 ) );
TextOut( hdc, g_song_title_x+1, g_song_title_y+1, g_song_title, lstrlen(g_song_title) );
}
if (g_hit>2 || (g_hit==2 && phase==0))
//if (g_hit>8 || (g_hit>=2 && g_hit<=8 && phase==0))
{
SetTextColor( hdc, RGB( 225, 225, 225 ) );
TextOut( hdc, g_song_title_x, g_song_title_y, g_song_title, lstrlen(g_song_title) );
}
lpDDSurf->ReleaseDC(hdc);
//---------------------------------------------
// now copy from backbuffer (scratchpad) to VS.
//---------------------------------------------
if (g_hit==2 && phase==0)
//if (g_hit>=2 && g_hit <= 8 && phase==0)
{
DDSURFACEDESC ddsd;
ddsd.dwSize = sizeof(ddsd);
// lock the buffer
HRESULT ddrval = lpDDSurf->Lock(NULL, &ddsd, DDLOCK_WAIT, NULL);
if (ddrval == DD_OK)
{
unsigned char *dest = (unsigned char *)ddsd.lpSurface;
unsigned char *dest2 = NULL;
int linesize = ddsd.lPitch;
int x, y;
int vs_index;
int first_x = g_song_title_x;
int last_x = min(FXW-2, g_song_title_x + siz.cx);
if (iDispBits==8)
{
for (y=0; y<siz.cy; y++)
{
dest2 = (unsigned char *)(dest + linesize*(g_song_title_y + y));
vs_index = (g_song_title_y + y)*FXW + g_song_title_x;
for (x = first_x; x < last_x; x++)
{
if (dest2[x] > 1) VS1[vs_index] = 225;
vs_index++;
}
}
}
else
{
int lookat_inc = 0;
if (iDispBits==32) lookat_inc = 4;
if (iDispBits==24) lookat_inc = 3;
if (iDispBits==16) lookat_inc = 2;
//int lookat_inc = (iDispBits==16) ? 2 : 4; // 3.40
first_x *= lookat_inc;
last_x *= lookat_inc;
for (y=0; y<siz.cy; y++)
{
dest2 = (unsigned char *)(dest + linesize*(g_song_title_y + y));
vs_index = ((g_song_title_y + y)*FXW + g_song_title_x) << 2;
for (x = first_x; x < last_x; x += lookat_inc)
{
if (dest2[x] > 1)
{
VS1[vs_index ] = g_title_R;//225;
VS1[vs_index + 1] = g_title_G;//225;
VS1[vs_index + 2] = g_title_B;//225;
}
vs_index += 4;
}
}
}
ddrval = lpDDSurf->Unlock(NULL);
if (ddrval != DD_OK)
{
dumpmsg("Plop_Songtitle_Using_Backbuffer_As_Scratch: lpDDSurf->Unlock() failed");
//Try_To_Recover(lpDDSurf, ddrval, true);
return;
}
}
else
{
dumpmsg("Plop_Songtitle_Using_Backbuffer_As_Scratch: lpDDSurf->Lck() failed");
//Try_To_Recover(lpDDSurf, ddrval, true);
return;
}
}
}
else
{
dumpmsg("Plop_Songtitle_Using_Backbuffer_As_Scratch: lpDDSurf->GetDC() failed");
//Try_To_Recover(lpDDSurf, ddrval, true);
return;
}
}
}
void Merge_All_VS_To_Backbuffer()
{
unsigned char *dest = NULL;
unsigned int linesize, linesize_over_FXW, linesize_over_FXW4, linesize_over_FXW3, half_linesize, quarter_linesize, linesize_over_FXW2;
unsigned int FX_YCUT_HIDE_xFXW4 = FX_YCUT_HIDE*FXW*4;
unsigned long FX_YCUT_HIDE_xLINESIZE;
unsigned long LINES_TO_DISPLAY;
unsigned __int16 FXW_DIV_4 = FXW/4;
clock_t temp_clock = clock();
WORD *worddest = NULL;
DWORD *dworddest = NULL;
DWORD pos1, pos2;
unsigned char clr1, clr2, clr3;
unsigned __int16 w;
unsigned __int32 dw;
unsigned long x2, y2, offset;//, x, y, bx2, by2, x_times_4, y_offset, offset;
unsigned __int16 FXW_DIV_2 = FXW/2;
unsigned __int16 FXW_DIV_8 = FXW/8;
unsigned __int16 FXW_DIV_16 = FXW/16;
unsigned __int16 FXW_DIV_32 = FXW/32;
unsigned __int16 FXW_DIV_40 = FXW/40;
DDSURFACEDESC ddsd;
ddsd.dwSize = sizeof(ddsd);
// lock the buffer
HRESULT ddrval = lpDDSBack->Lock(NULL, &ddsd, DDLOCK_WAIT, NULL);
//if (rand()%40==0) Try_To_Recover(lpDDSBack, ddrval+1, true);
if (ddrval != DD_OK)
{
// crazy crack patch for when the program comes back from SC_MONITORPOWER
// state and the palette won't be attached for a while
iBlendsLeftInPal = 3;
//Try_To_Recover(lpDDSBack, ddrval, true);
//dumpmsg("Merge_All_VS_To_Backbuffer: lpDDSBack->Lock() failed");
return;
/*
switch(ddrval)
{
case DDERR_INVALIDOBJECT: dumpmsg(" [DDERR_INVALIDOBJECT]"); break;
case DDERR_INVALIDPARAMS: dumpmsg(" [DDERR_INVALIDPARAMS]"); break;
case DDERR_SURFACEBUSY: dumpmsg(" [DDERR_SURFACEBUSY]"); break;
case DDERR_SURFACELOST: dumpmsg(" [DDERR_SURFACELOST]"); break;
case DDERR_WASSTILLDRAWING: dumpmsg(" [DDERR_WASSTILLDRAWING]"); break;
case DDERR_OUTOFMEMORY: dumpmsg(" [DDERR_OUTOFMEMORY]"); break;
case DD_OK: dumpmsg(" [OK]"); break;
default: dumpmsg(" [UNKNOWN]"); break;
}
if (ddrval==DDERR_SURFACELOST)
{
dumpmsg("Calling ->Restore()...");
ddrval = lpDDSBack->Restore();
switch(ddrval)
{
case DDERR_INVALIDOBJECT: dumpmsg(" [DDERR_INVALIDOBJECT]"); break;
case DDERR_INVALIDPARAMS: dumpmsg(" [DDERR_INVALIDPARAMS]"); break;
case DDERR_GENERIC: dumpmsg(" [DDERR_GENERIC]"); break;
case DDERR_IMPLICITLYCREATED: dumpmsg(" [DDERR_IMPLICITLYCREATED]"); break;
case DDERR_INCOMPATIBLEPRIMARY: dumpmsg(" [DDERR_INCOMPATIBLEPRIMARY]"); break;
case DDERR_OUTOFMEMORY: dumpmsg(" [DDERR_OUTOFMEMORY]"); break;
case DDERR_NOEXCLUSIVEMODE: dumpmsg(" [DDERR_NOEXCLUSIVEMODE]"); break;
case DDERR_UNSUPPORTED: dumpmsg(" [DDERR_UNSUPPORTED]"); break;
case DDERR_WRONGMODE: dumpmsg(" [DDERR_WRONGMODE]"); break;
case DD_OK: dumpmsg(" [OK]"); break;
default: dumpmsg(" [UNKNOWN]"); break;
}
}
return; // we'll get it right next time.
//Try_To_Recover(lpDDSBack, ddrval, true);
*/
}
//stuff
dest = (unsigned char *)ddsd.lpSurface;
worddest = (WORD *)ddsd.lpSurface;
dworddest = (DWORD *)ddsd.lpSurface;
if (intframe==30) clearframes = max(clearframes, 3);
#if PLUGIN
if (intframe==80) clearframes = max(clearframes, 3);
#endif
#if SAVER
if (intframe==25 && !g_bDisableCdControls && g_bAutostartCD)
{
//dumpmsg(" -ready to autostart CD. Checking current state.");
//CheckForNewCD();
dumpmsg(" -issuing cdaudio commands.");
if (eDiscState == PAUSED)
{
SHOW_TRACK_MSG = 30;
eDiscState = PLAYING;
mciSendString("resume cdaudio wait",NULL,NULL,NULL);
}
else if (eDiscState == STOPPED)
{
SHOW_TRACK_MSG = 30;
eDiscState = PLAYING;
mciSendString("stop cdaudio",NULL,NULL,NULL);
mciSendString("seek cdaudio to 1", NULL, NULL, NULL);
mciSendString("play cdaudio",NULL,NULL,NULL);
}
dumpmsg(" -cdaudio commands complete.");
}
#endif
if (intframe<20)
{
dumpmsg("[frame %d/20 ok]", intframe);
}
if (clearframes > 0)//(intframe <= 4)
{
dumpmsg("frame %d: clearing edges", intframe);
//temp_clock = clock();
clearframes--;
memset(ddsd.lpSurface, 0, ddsd.lPitch*FXH);
//clock_debt += (clock() - temp_clock);
}
//memset((unsigned char *)(dest + (intframe%CurVideoHeight)*ddsd.lPitch), 0, ddsd.lPitch);
if (!bLocked)
{
if (y_map_pos == -1) FX_Pick_Random_Mode(); // sets global 'mode' to a valid random number.
GenerateChunkOfNewMap();
/*
if (--frames_til_auto_switch == 0)
{
frames_til_auto_switch = 1000;
FX_Pick_Random_Mode();
GenerateChunkOfNewMap();
FX_Random_Palette();
}
*/
}
linesize = ddsd.lPitch;
half_linesize = linesize/2;
quarter_linesize = linesize/4;
linesize_over_FXW = linesize-FXW; // 768
linesize_over_FXW2 = linesize-FXW*2;
linesize_over_FXW3 = linesize-FXW*3;
linesize_over_FXW4 = linesize-FXW*4;
//linesize_over_FXW8 = linesize-FXW*8;
FX_YCUT_HIDE_xLINESIZE = FX_YCUT_HIDE * linesize;
LINES_TO_DISPLAY = (FXH-FX_YCUT_HIDE*2);
//dumpmsg("ltd=%d", LINES_TO_DISPLAY);
//dumpmsg("linesize_over_FXW=%d", linesize_over_FXW);
if (iDispBits==8)
{
if (bMMX) // use MMX copy over memcpy()
{
if (FXW%32 == 0) // we can do 32 bytes per loop
__asm
{
push edi
push esi
mov edi, dworddest
add edi, FX_YCUT_HIDE_xLINESIZE
mov eax, VS1
add eax, FX_YCUT_HIDE_xFXW
// [edi] is start pt. on back surface
// [eax] points to VS1
// ecx is the loop counter
// ebx holds linesize_over_FXW
mov ebx, linesize_over_FXW
mov ecx, LINES_TO_DISPLAY
Scanline_Loop3:
// upper word of ECX: # of scanlines left
// lower word of ECX: # of pixels left in current scanline.
shl ecx, 16
mov cx, FXW_DIV_32
PixelChunk_Loop3:
// load, saturate & store the red, green, & blue values
MOVQ mm0, [eax] // read 8 bgrx pixels
MOVQ mm1, [eax+8] // read 8 bgrx pixels
MOVQ mm2, [eax+16] // read 8 bgrx pixels
MOVQ mm3, [eax+24] // read 8 bgrx pixels
MOVQ [edi], mm0
MOVQ [edi+8], mm1
MOVQ [edi+16], mm2
MOVQ [edi+24], mm3
ADD eax, 32
ADD edi, 32
dec cx
jnz PixelChunk_Loop3
add edi, ebx // extra bytes per line
shr ecx, 16
dec cx
jnz Scanline_Loop3
EMMS
pop esi
pop edi
}
else if (FXW%40==0)
__asm // use MMX over memcpy()
{
push edi
push esi
mov edi, dworddest
add edi, FX_YCUT_HIDE_xLINESIZE
mov eax, VS1
add eax, FX_YCUT_HIDE_xFXW
// [edi] is start pt. on back surface
// [eax] points to VS1
// ecx is the loop counter
// ebx holds linesize_over_FXW
mov ebx, linesize_over_FXW
mov ecx, LINES_TO_DISPLAY
Scanline_Loop3b:
// upper word of ECX: # of scanlines left
// lower word of ECX: # of pixels left in current scanline.
shl ecx, 16
mov cx, FXW_DIV_40
PixelChunk_Loop3b:
// load, saturate & store the red, green, & blue values
MOVQ mm0, [eax] // read 8 bgrx pixels
MOVQ mm1, [eax+8] // read 8 bgrx pixels
MOVQ mm2, [eax+16] // read 8 bgrx pixels
MOVQ mm3, [eax+24] // read 8 bgrx pixels
MOVQ mm4, [eax+32] // read 8 bgrx pixels
MOVQ [edi], mm0
MOVQ [edi+8], mm1
MOVQ [edi+16], mm2
MOVQ [edi+24], mm3
MOVQ [edi+32], mm4
ADD eax, 40
ADD edi, 40
dec cx
jnz PixelChunk_Loop3b
add edi, ebx // extra bytes per line
shr ecx, 16
dec cx
jnz Scanline_Loop3b
EMMS
pop esi
pop edi
}
else
{
dumpmsg("BAD VIDEO MODE: (FXH %% 32 != 0 and FXH %% 40 != 0)");
}
}
else
{
if (linesize==FXW)
{
offset = FX_YCUT_HIDE*FXW;
pos1 = FX_YCUT_HIDE*linesize;
memcpy(&dest[pos1], &VS1[offset], (FXH-FX_YCUT_HIDE*2)*FXW );
}
else
{
offset = FX_YCUT_HIDE*FXW;
for (y2 = FX_YCUT_HIDE; y2<(FXH-FX_YCUT_HIDE); y2++)
{
pos1 = y2*linesize;
memcpy(&dest[pos1], &VS1[offset], FXW);
offset += FXW;
}
}
}
}
else if (iDispBits==16)
{
if (!bMMX)
{
unsigned __int32 *VSX = (unsigned __int32 *)VS1;
unsigned __int32 val;
unsigned __int8 val1, val2, val3;
offset = FX_YCUT_HIDE*FXW;
if (VIDEO_CARD_FUCKED==1)
for (y2 = FX_YCUT_HIDE; y2<(FXH-FX_YCUT_HIDE); y2++)
{
pos1 = y2*(linesize/2); // .../2 because we're writing WORDs
for (x2 = 0; x2<FXW; x2++)
{
val = VSX[offset++];
//val1 = REMAP[(val >> 16) ];
//val2 = REMAP[(val >> 8) & 255];
//val3 = REMAP[(val ) & 255];
//worddest[pos1++] = ((val1 >> 3) << 10) | ((val2 >> 3) << 5) | (val3 >> 3);
val1 = REMAP[(val >> 16) ];
val2 = REMAP[(val >> 8) & 255];
val3 = REMAP[(val ) & 255];
worddest[pos1++] = ((val1 ) << 10) | ((val2 ) << 5) | (val3 );
}
}
else
for (y2 = FX_YCUT_HIDE; y2<(FXH-FX_YCUT_HIDE); y2++)
{
pos1 = y2*(linesize/2); // .../2 because we're writing WORDs
for (x2 = 0; x2<FXW; x2++)
{
val = VSX[offset++];
//val1 = REMAP[(val >> 16) ];
//val2 = REMAP[(val >> 8) & 255];
//val3 = REMAP[(val ) & 255];
//worddest[pos1++] = ((val1 >> 3) << 11) | ((val2 >> 2) << 5) | (val3 >> 3);
val1 = REMAP2[(val >> 16) ];
val2 = REMAP2[(val >> 8) & 255];
val3 = REMAP2[(val ) & 255];
worddest[pos1++] = ((val1 >> 1 ) << 11) | ((val2 ) << 5) | (val3 >> 1 );
}
}
}
else
{
// special MMX optimization for going FXWxFXHx16 display mode
if (VIDEO_CARD_FUCKED==1)
__asm
{
push edi
push esi
mov edi, worddest
add edi, FX_YCUT_HIDE_xLINESIZE
mov eax, VS1
add eax, FX_YCUT_HIDE_xFXW4
// [edi] is start pt. on back surface
// [eax] points to VS1
// ecx is the loop counter
// ebx holds linesize_over_FXW (times 4)
mov ebx, linesize_over_FXW2
mov ecx, LINES_TO_DISPLAY
Scanline_Loop16b:
// upper word of ECX: # of scanlines left
// lower word of ECX: # of pixels left in current scanline.
shl ecx, 16
mov cx, FXW_DIV_2
PixelChunk_Loop16b:
MOVQ mm0, [eax] // read 64 bits [RGBxRGBx]
PADDUSB mm0, mm0 // saturate (gamma-correction)
MOVQ mm1, mm0
MOVQ mm2, mm0 //|????????rrrrrrrr|ggggggggbbbbbbbb|????????bbbbbbbb|ggggggggrrrrrrrr|
PSRLD mm0, 16+3 //|0000000000000000|00000000000rrrrr|0000000000000000|00000000000rrrrr|
PSRLD mm1, 8+3 //|0000000000000000|000rrrrrrrrggggg|0000000000000000|0000000000gggggg|
PSRLD mm2, 3 //|00000000000rrrrr|rrrggggggggbbbbb|0000000000000000|00000000000bbbbb|
PSLLD mm0, 32-5 //|rrrrr00000000000|0000000000000000|0000000000000000|00000000000rrrrr|
PSLLD mm1, 32-5 //|ggggg00000000000|0000000000000000|0000000000000000|0000000000gggggg|
PSLLD mm2, 32-5 //|bbbbb00000000000|0000000000000000|0000000000000000|00000000000bbbbb|
PSRLD mm0, 1 //|0rrrrr0000000000|0000000000000000|0000000000000000|00000000000rrrrr|
PSRLD mm1, 1+5 //|000000ggggg00000|0000000000000000|0000000000000000|0000000000gggggg|
PSRLD mm2, 1+5+5 //|00000000000bbbbb|0000000000000000|0000000000000000|00000000000bbbbb|
POR mm0, mm1
POR mm0, mm2 //|0rrrrrgggggbbbbb|0000000000000000|rrrrrggggggbbbbb|0000000000000000|
MOVQ mm1, mm0
PSRLQ mm0, 16
PSRLQ mm1, 32
POR mm0, mm1 //|????????????????|????????????????|0rrrrrgggggbbbbb|0rrrrrgggggbbbbb|
MOVD [edi], mm0 // puts lower 32 bits to memory (2 dest. pixels)
ADD eax, 8
ADD edi, 4
dec cx
jnz PixelChunk_Loop16b
add edi, ebx // extra bytes per line
shr ecx, 16
dec cx
jnz Scanline_Loop16b
EMMS
pop esi
pop edi
}
else
__asm
{
push edi
push esi
mov edi, worddest
add edi, FX_YCUT_HIDE_xLINESIZE
mov eax, VS1
add eax, FX_YCUT_HIDE_xFXW4
// [edi] is start pt. on back surface
// [eax] points to VS1
// ecx is the loop counter
// ebx holds linesize_over_FXW (times 4)
mov ebx, linesize_over_FXW2
mov ecx, LINES_TO_DISPLAY
Scanline_Loop16a:
// upper word of ECX: # of scanlines left
// lower word of ECX: # of pixels left in current scanline.
shl ecx, 16
mov cx, FXW_DIV_2
// IF DOUBLING THE WORKLOAD:
//shr cx, 1
PixelChunk_Loop16a:
MOVQ mm0, [eax] // read 64 bits [RGBxRGBx]
PADDUSB mm0, mm0 // saturate (gamma-correction)
//MM0 (high half) MM1 (high half) MM2 (high half)
//----------------------------------- ----------------------------------- -----------------------------------
//|........rrrrrrrr|ggggggggbbbbbbbb|
MOVQ mm1, mm0 //|........rrrrrrrr|ggggggggbbbbbbbb| |........rrrrrrrr|ggggggggbbbbbbbb|
PSRLW mm0, 3 //|000........rrrrr|000ggggggggbbbbb| |........rrrrrrrr|ggggggggbbbbbbbb|
PSRLW mm1, 10 //|000........rrrrr|000ggggggggbbbbb| |0000000000......|0000000000gggggg|
PSLLW mm0, 11 //|rrrrr00000000000|bbbbb00000000000| |0000000000......|0000000000gggggg|
PSLLD mm1, 21 //|rrrrr00000000000|bbbbb00000000000| |00000gggggg00000|0000000000000000|
MOVQ mm2, mm0 //|rrrrr00000000000|bbbbb00000000000| |00000gggggg00000|0000000000000000| |rrrrr00000000000|bbbbb00000000000|
POR mm0, mm1 //|rrrrrgggggg00000|bbbbb00000000000| |rrrrr00000000000|bbbbb00000000000|
PSLLD mm2, 5 //|rrrrrgggggg00000|bbbbb00000000000| |00000000000bbbbb|0000000000000000|
POR mm0, mm2 //|rrrrrggggggbbbbb|bbbbb00000000000|rrrrrggggggbbbbb|bbbbb00000000000|
PSRLD mm0, 16 //|0000000000000000|rrrrrggggggbbbbb|0000000000000000|rrrrrggggggbbbbb|
MOVQ mm1, mm0
PSRLQ mm1, 16
POR mm0, mm1
MOVD [edi], mm0 // puts lower 32 bits to memory (2 16-bit RGB quantities == 2 pixels)
ADD eax, 8//16//8
ADD edi, 4//8//4
dec cx
jnz PixelChunk_Loop16a
add edi, ebx // extra bytes per line
shr ecx, 16
dec cx
jnz Scanline_Loop16a
EMMS
pop esi
pop edi
}
}
}
else if (iDispBits==24)
{
//if (bMMX)
__asm
{
push edi
push esi
mov edi, dworddest
add edi, FX_YCUT_HIDE_xLINESIZE
mov eax, VS1
add eax, FX_YCUT_HIDE_xFXW4
mov esi, eax
// [esi] points to VS1
// [edi] is start pt. on back surface
// ecx is the loop counter
mov ebx, linesize_over_FXW3
mov ecx, LINES_TO_DISPLAY
Scanline_Loop4:
// upper word of ECX: # of scanlines left
// lower word of ECX: # of pixels left in current scanline.
shl ecx, 16
mov cx, FXW_DIV_8
PixelChunk_Loop4:
mov eax, dword ptr [esi]
mov ebx, dword ptr [esi+4]
mov edx, dword ptr [esi+8]
// fill high byte of EAX w/ 'r' of pixel #2
rol eax, 8
mov al, bl
ror eax, 8
// fill high word of EBX with 'g' and 'b' of pixel #3
rol ebx, 8
mov bx, dx
ror ebx, 16
// fill bottom 3 bytes of edx with value of pixel #4
mov edx, [esi+12]
rol edx, 8
mov dl, [esi+10] //!
// write four pixels, packed into 3 [eax:ebx:edx]
mov [edi], eax
mov [edi+4], ebx
mov [edi+8], edx
add esi, 16
add edi, 12
mov eax, dword ptr [esi]
mov ebx, dword ptr [esi+4]
mov edx, dword ptr [esi+8]
// fill high byte of EAX w/ 'r' of pixel #2
rol eax, 8
mov al, bl
ror eax, 8
// fill high word of EBX with 'g' and 'b' of pixel #3
rol ebx, 8
mov bx, dx
ror ebx, 16
// fill bottom 3 bytes of edx with value of pixel #4
mov edx, [esi+12]
rol edx, 8
mov dl, [esi+10] //!
// write four pixels, packed into 3 [eax:ebx:edx]
mov [edi], eax
mov [edi+4], ebx
mov [edi+8], edx
add esi, 16
add edi, 12
dec cx
jnz PixelChunk_Loop4
add edi, linesize_over_FXW3 //ebx // extra bytes per line
shr ecx, 16
dec cx
jnz Scanline_Loop4
EMMS
pop esi
pop edi
}
/*
else
{
// with gamma correction:
unsigned __int32 val;
unsigned __int8 val1, val2, val3;
unsigned __int32 *VSX = (unsigned __int32 *)VS1;
int x;
offset = FX_YCUT_HIDE*FXW;
for (y2 = FX_YCUT_HIDE; y2<(FXH-FX_YCUT_HIDE); y2++)
{
pos1 = y2*linesize;
for (x=0; x<FXW; x++)
{
val = VSX[offset++];
dest[pos1] = REMAP[(val >> 16) ];
dest[pos1+1] = REMAP[(val >> 8) & 255];
dest[pos1+2] = REMAP[(val ) & 255];
pos1 += 3;
}
}
}
*/
}
else if (iDispBits==32)
{
if (bMMX)
__asm
{
push edi
push esi
mov edi, dworddest
add edi, FX_YCUT_HIDE_xLINESIZE
mov eax, VS1
add eax, FX_YCUT_HIDE_xFXW4
// [edi] is start pt. on back surface
// [eax] points to VS1
// ecx is the loop counter
// ebx holds linesize_over_FXW (times 4)
mov ebx, linesize_over_FXW4
mov ecx, LINES_TO_DISPLAY
Scanline_Loop5:
// upper word of ECX: # of scanlines left
// lower word of ECX: # of pixels left in current scanline.
shl ecx, 16
mov cx, FXW_DIV_16
PixelChunk_Loop5:
// load, saturate & store the red, green, & blue values
MOVQ mm0, [eax] // read 2 bgrx pixels
MOVQ mm1, [eax+8] // read 2 bgrx pixels
MOVQ mm2, [eax+16] // read 2 bgrx pixels
MOVQ mm3, [eax+24] // read 2 bgrx pixels
MOVQ mm4, [eax+32] // read 2 bgrx pixels
MOVQ mm5, [eax+40] // read 2 bgrx pixels
MOVQ mm6, [eax+48] // read 2 bgrx pixels
MOVQ mm7, [eax+56] // read 2 bgrx pixels
PADDUSB mm0, mm0
PADDUSB mm1, mm1