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Hi-res filters for OpenGL modes [zinx]

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This commit is contained in:
hpsolo
2001-06-02 20:18:37 +00:00
parent 9eefc45d95
commit 01e894527b
1 changed files with 235 additions and 69 deletions
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282
zsnes/src/linux/sdllink.c
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@@ -2,6 +2,7 @@
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/time.h>
#include <time.h>
#include "SDL.h"
#ifdef __OPENGL__
@@ -48,12 +49,14 @@ extern unsigned char cvidmode;
// OPENGL VARIABLES
#ifdef __OPENGL__
unsigned short glvidbuffer[512*512];
GLuint gltextures[3];
int gl_inited = 0;
unsigned short *glvidbuffer = 0;
int glvbtexture[1];
int gltexture256, gltexture512;
//float ratiox = 1.0;
int UseOpenGL = 0;
int glfilters = GL_NEAREST;
extern Uint8 En2xSaI, scanlines;
extern Uint8 BilinearFilter;
extern Uint8 FilteredGUI;
extern Uint8 GUIOn2;
@@ -84,13 +87,29 @@ Uint8 MouseButton;
DWORD LastUsedPos = 0;
DWORD CurMode = -1;
#define UPDATE_TICKS_GAME 1000/60 // milliseconds per world update
#define UPDATE_TICKS_GAMEPAL 1000/50 // milliseconds per world update
#define UPDATE_TICKS_GUI 1000/36 // milliseconds per world update
#define UPDATE_TICKS_UDP 1000/60 // milliseconds per world update
extern unsigned int vidbuffer;
#define UPDATE_TICKS_GAME 1000000/60 // microseconds per world update
#define UPDATE_TICKS_GAMEPAL 1000000/50 // microseconds per world update
#define UPDATE_TICKS_GUI 1000000/36 // microseconds per world update
#define UPDATE_TICKS_UDP 1000000/60 // microseconds per world update
_int64 start, end, freq, update_ticks_pc, start2, end2, update_ticks_pc2;
/* SDL's GetTicks function is only millisecond accuracy */
static struct timeval start_time;
static void zsnes_InitTicks() {
gettimeofday(&start_time, NULL);
}
static _int64 zsnes_GetTicks() {
struct timeval tv;
gettimeofday(&tv, NULL);
return (tv.tv_sec-start_time.tv_sec)*1000000L + (tv.tv_usec-start_time.tv_usec);
}
void drawscreenwin(void);
void initwinvideo();
void ProcessKeyBuf(int scancode);
@@ -464,6 +483,7 @@ int startgame(void)
} else {
sdl_inited = 1;
}
zsnes_InitTicks();
}
flags |= ( FullScreen ? SDL_FULLSCREEN : 0);
@@ -482,26 +502,19 @@ int startgame(void)
}
#ifdef __OPENGL__
if (UseOpenGL) {
if (SurfaceY) glViewport(0,0, SurfaceX, SurfaceY);
else glViewport(0,0, SurfaceX, 1);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glMatrixMode(GL_MODELVIEW);
glFlush();
if (!gl_inited) {
glGenTextures(1,&glvbtexture[0]);
gl_inited = 1;
glvidbuffer = malloc(256*256*2);
// the *2 in 256*256*2 may need to be changed later on to account for the bitdepth
}
} else {
if (gl_inited) {
free(glvidbuffer);
/* this _SHOULD_ be safe even if they aren't generated:
"glDeleteTextures silently ignores 0's and names that do not correspond to existing textures."
However, nVidia's drivers are far less than perfect.
*/
glDeleteTextures(3, gltextures);
gl_inited = 0;
}
if (UseOpenGL) {
if (SurfaceY) glViewport(0,0, SurfaceX, SurfaceY);
else glViewport(0,0, SurfaceX, 1);
glGenTextures(3, gltextures);
gl_inited = 1;
}
BitDepth = (UseOpenGL ? 16 : 0);
@@ -514,7 +527,11 @@ int startgame(void)
FullScreen ? SDL_WM_GrabInput(SDL_GRAB_ON) : SDL_WM_GrabInput(SDL_GRAB_OFF);
/* Need to handle situations where BPP is not what we can handle */
#ifdef __OPENGL__
SDL_WM_SetCaption (UseOpenGL?"ZSNES-GL Linux":"ZSNES Linux","ZSNES");
#else
SDL_WM_SetCaption ("ZSNES Linux","ZSNES");
#endif
SDL_ShowCursor(0);
BitDepth = surface->format->BitsPerPixel;
@@ -597,7 +614,6 @@ short *Sound;
//void WinUpdateDevices(); function removed since it was empty
extern unsigned char romispal;
void Start60HZ(void)
{
update_ticks_pc2 = UPDATE_TICKS_UDP;
@@ -607,8 +623,8 @@ void Start60HZ(void)
update_ticks_pc = UPDATE_TICKS_GAME;
}
start = SDL_GetTicks();
start2 = SDL_GetTicks();
start = zsnes_GetTicks();
start2 = zsnes_GetTicks();
// QueryPerformanceCounter((LARGE_INTEGER*)&start);
// QueryPerformanceCounter((LARGE_INTEGER*)&start2);
T36HZEnabled = 0;
@@ -627,8 +643,8 @@ void Start36HZ(void)
// QueryPerformanceCounter((LARGE_INTEGER*)&start);
// QueryPerformanceCounter((LARGE_INTEGER*)&start2);
start = SDL_GetTicks();
start2 = SDL_GetTicks();
start = zsnes_GetTicks();
start2 = zsnes_GetTicks();
T60HZEnabled = 0;
T36HZEnabled = 1;
}
@@ -760,7 +776,7 @@ void CheckTimers(void)
{
int i;
//QueryPerformanceCounter((LARGE_INTEGER*)&end2);
end2 = SDL_GetTicks();
end2 = zsnes_GetTicks();
while ((end2 - start2) >= update_ticks_pc2)
{
@@ -777,7 +793,7 @@ void CheckTimers(void)
if(T60HZEnabled) {
//QueryPerformanceCounter((LARGE_INTEGER*)&end);
end = SDL_GetTicks();
end = zsnes_GetTicks();
while ((end - start) >= update_ticks_pc)
{
@@ -795,7 +811,7 @@ void CheckTimers(void)
if(T36HZEnabled) {
//QueryPerformanceCounter((LARGE_INTEGER*)&end);
end = SDL_GetTicks();
end = zsnes_GetTicks();
while ((end - start) >= update_ticks_pc)
{
@@ -896,27 +912,27 @@ extern unsigned char FPUCopy;
extern unsigned char NGNoTransp;
extern unsigned char newengen;
extern void copy640x480x16bwin(void);
extern unsigned char SpecialLine[224];
void clearwin()
{
DWORD *SURFDW;
#ifdef __OPENGL__
if (UseOpenGL) {
glClear(GL_COLOR_BUFFER_BIT);
if (En2xSaI || scanlines)
memset(glvidbuffer, 0, 512*448*2);
return;
}
#endif
Temp1 = LockSurface();
if(Temp1 == 0) { return; }
vidbuff_w = SurfaceX; vidbuff_h = SurfaceY;
#ifdef __OPENGL__
if (!UseOpenGL) {
#endif
SurfBufD = (DWORD) &SurfBuf[0];
SURFDW = (DWORD *) &SurfBuf[0];
#ifdef __OPENGL__
} else {
SurfBufD = (DWORD) &glvidbuffer[0];
SURFDW = (DWORD *) &glvidbuffer[0];
vidbuff_w = 256; vidbuff_h = 224;
}
#endif
if (SurfBufD == 0) { UnlockSurface(); return; }
@@ -980,6 +996,100 @@ void LinuxExit (void)
exit(0);
}
#ifdef __OPENGL__
static void drawscreenwin_drawglblock(int hires, int start, int end)
{
int i, j;
if (hires) {
if (!gltexture512) {
unsigned short *b288 = &((unsigned short*)vidbuffer)[16], *b576 = &((unsigned short*)vidbuffer)[75036*2 + 16];
unsigned short *p = &glvidbuffer[0];
for (j = 0; j < 224; j++) {
for (i = 0; i < 256; i++) {
*p++ = *b288++;
*p++ = *b576++;
}
b288 += 32; b576 += 32;
}
glBindTexture(GL_TEXTURE_2D, gltextures[1]);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,glfilters);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,glfilters);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_CLAMP);
glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
glPixelStorei(GL_UNPACK_ROW_LENGTH, 512);
glTexImage2D(GL_TEXTURE_2D, 0, 3, 256, 256, 0,
GL_RGB, GL_UNSIGNED_SHORT_5_6_5, glvidbuffer + 512);
glBindTexture(GL_TEXTURE_2D, gltextures[2]);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,glfilters);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,glfilters);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_CLAMP);
glPixelStorei(GL_UNPACK_SKIP_PIXELS, 256);
glPixelStorei(GL_UNPACK_ROW_LENGTH, 512);
glTexImage2D(GL_TEXTURE_2D, 0, 3, 256, 256, 0,
GL_RGB, GL_UNSIGNED_SHORT_5_6_5, glvidbuffer + 512);
gltexture512 = 1;
}
glBindTexture(GL_TEXTURE_2D, gltextures[1]);
glBegin(GL_QUADS);
glTexCoord2f(0.0f, (224.0/256.0)*(start/224.0));
glVertex2f(-1.0f, (112-start)/112.0);
glTexCoord2f(1.0f, (224.0/256.0)*(start/224.0));
glVertex2f( 0.0f, (112-start)/112.0);
glTexCoord2f(1.0f, (224.0/256.0)*(end/224.0));
glVertex2f( 0.0f, (112-end)/112.0);
glTexCoord2f(0.0f, (224.0/256.0)*(end/224.0));
glVertex2f(-1.0f, (112-end)/112.0);
glEnd();
glBindTexture(GL_TEXTURE_2D, gltextures[2]);
glBegin(GL_QUADS);
glTexCoord2f(0.0f, (224.0/256.0)*(start/224.0));
glVertex2f( 0.0f, (112-start)/112.0);
glTexCoord2f(1.0f, (224.0/256.0)*(start/224.0));
glVertex2f( 1.0f, (112-start)/112.0);
glTexCoord2f(1.0f, (224.0/256.0)*(end/224.0));
glVertex2f( 1.0f, (112-end)/112.0);
glTexCoord2f(0.0f, (224.0/256.0)*(end/224.0));
glVertex2f( 0.0f, (112-end)/112.0);
glEnd();
} else {
if (!gltexture256) {
glBindTexture(GL_TEXTURE_2D, gltextures[0]);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,glfilters);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,glfilters);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_CLAMP);
glPixelStorei(GL_UNPACK_SKIP_PIXELS, 16);
glPixelStorei(GL_UNPACK_ROW_LENGTH, 288);
glTexImage2D(GL_TEXTURE_2D, 0, 3, 256, 256, 0,
GL_RGB, GL_UNSIGNED_SHORT_5_6_5, ((unsigned short*)vidbuffer) + 288);
gltexture256 = 1;
}
glBindTexture(GL_TEXTURE_2D, gltextures[0]);
glBegin(GL_QUADS);
glTexCoord2f(0.0f, (224.0/256.0)*(start/224.0));
glVertex2f(-1.0f, (112-start)/112.0);
glTexCoord2f(1.0f, (224.0/256.0)*(start/224.0));
glVertex2f( 1.0f, (112-start)/112.0);
glTexCoord2f(1.0f, (224.0/256.0)*(end/224.0));
glVertex2f( 1.0f, (112-end)/112.0);
glTexCoord2f(0.0f, (224.0/256.0)*(end/224.0));
glVertex2f(-1.0f, (112-end)/112.0);
glEnd();
}
}
#endif
void drawscreenwin(void)
{
DWORD i,j,color32;
@@ -1000,10 +1110,6 @@ void drawscreenwin(void)
#ifdef __OPENGL__
if (UseOpenGL) {
for (j = 0; j<224; j++) {
memcpy(glvidbuffer + 256*j, (short *) (vidbuffer) + 16 + 288 + (256+32)*j, 256*2);
}
if (BilinearFilter) {
glfilters = GL_LINEAR;
if (GUIOn2 && !FilteredGUI) glfilters = GL_NEAREST;
@@ -1011,29 +1117,89 @@ void drawscreenwin(void)
glfilters = GL_NEAREST;
}
/*
if (FullScreen)
ratiox = 0.875;
else
ratiox = 1.0;
*/
//glClear(GL_COLOR_BUFFER_BIT);
glLoadIdentity();
glEnable(GL_TEXTURE_2D);
if (En2xSaI || scanlines) {
AddEndBytes = 0;
NumBytesPerLine = 1024;
WinVidMemStart = (void*)glvidbuffer;
__asm__ __volatile__ ("call copy640x480x16bwin"
::: "memory", "eax", "ebx", "ecx", "edx", "esi", "edi");
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,glfilters);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,glfilters);
glBindTexture(GL_TEXTURE_2D, *glvbtexture);
glColor3f(1.0f,1.0f,1.0f);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_CLAMP);
glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
glPixelStorei(GL_UNPACK_ROW_LENGTH, 512);
glTexImage2D(GL_TEXTURE_2D, 0, 3, 256, 256, 0,
GL_RGB, GL_UNSIGNED_SHORT_5_6_5, glvidbuffer);
glBegin(GL_QUADS);
glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
glTexCoord2f(1.0f, 2.240/2.560); glVertex3f( 1.0f, -1.0f, -1.0f);
glTexCoord2f(0.0f, 2.240/2.560); glVertex3f(-1.0f, -1.0f, -1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f( 0.0f, 1.0f, -1.0f);
glTexCoord2f(1.0f, (224.0/256.0)); glVertex3f( 0.0f, 0.0f, -1.0f);
glTexCoord2f(0.0f, (224.0/256.0)); glVertex3f(-1.0f, 0.0f, -1.0f);
glEnd();
glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
glPixelStorei(GL_UNPACK_ROW_LENGTH, 512);
glTexImage2D(GL_TEXTURE_2D, 0, 3, 256, 256, 0,
GL_RGB, GL_UNSIGNED_SHORT_5_6_5, glvidbuffer + 256);
glBegin(GL_QUADS);
glTexCoord2f(0.0f, 0.0f); glVertex3f(0.0f, 1.0f, -1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f(1.0f, 1.0f, -1.0f);
glTexCoord2f(1.0f, (224.0/256.0)); glVertex3f(1.0f, 0.0f, -1.0f);
glTexCoord2f(0.0f, (224.0/256.0)); glVertex3f(0.0f, 0.0f, -1.0f);
glEnd();
glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
glPixelStorei(GL_UNPACK_ROW_LENGTH, 512);
glTexImage2D(GL_TEXTURE_2D, 0, 3, 256, 256, 0,
GL_RGB, GL_UNSIGNED_SHORT_5_6_5, glvidbuffer + 512*224);
glBegin(GL_QUADS);
glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, 0.0f, -1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f( 0.0f, 0.0f, -1.0f);
glTexCoord2f(1.0f, (224.0/256.0)); glVertex3f( 0.0f, -1.0f, -1.0f);
glTexCoord2f(0.0f, (224.0/256.0)); glVertex3f(-1.0f, -1.0f, -1.0f);
glEnd();
glTexImage2D(GL_TEXTURE_2D, 0, 3, 256, 256, 0,
GL_RGB, GL_UNSIGNED_SHORT_5_6_5, glvidbuffer + 512*224 + 256);
glBegin(GL_QUADS);
glTexCoord2f(0.0f, 0.0f); glVertex3f( 0.0f, 0.0f, -1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, 0.0f, -1.0f);
glTexCoord2f(1.0f, (224.0/256.0)); glVertex3f( 1.0f, -1.0f, -1.0f);
glTexCoord2f(0.0f, (224.0/256.0)); glVertex3f( 0.0f, -1.0f, -1.0f);
glEnd();
} else {
int lasthires, lasthires_line = 0;
gltexture256 = gltexture512 = 0;
lasthires = SpecialLine[1];
for (i = 1; i < 222; i++) {
if (SpecialLine[i+1]) {
if (lasthires) continue;
drawscreenwin_drawglblock(lasthires, lasthires_line, i);
lasthires = SpecialLine[i+1];
lasthires_line = i;
} else {
if (!lasthires) continue;
drawscreenwin_drawglblock(lasthires, lasthires_line, i);
lasthires = SpecialLine[i+1];
lasthires_line = i;
}
}
drawscreenwin_drawglblock(lasthires, lasthires_line, i);
}
} else {
#endif