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Bug fixes for GL linear filters and double buffering options.

This commit is contained in:
Matthew Budd 2020-06-09 09:23:32 -04:00
parent 3e2802a2de
commit cfbe2dc5f3
4 changed files with 65 additions and 42 deletions
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6
src/drivers/sdl/config.cpp
View File

@ -206,7 +206,7 @@ InitConfig()
config->addOption("SDL.LastXRes", 0);
config->addOption("SDL.LastYRes", 0);
config->addOption('b', "bpp", "SDL.BitsPerPixel", 32);
config->addOption("doublebuf", "SDL.DoubleBuffering", 0);
config->addOption("doublebuf", "SDL.DoubleBuffering", 1);
config->addOption("autoscale", "SDL.AutoScale", 1);
config->addOption("keepratio", "SDL.KeepRatio", 1);
config->addOption("xscale", "SDL.XScale", 1.0);
@ -219,8 +219,8 @@ InitConfig()
config->addOption("togglemenu", "SDL.ToggleMenu", 0);
// OpenGL options
config->addOption("opengl", "SDL.OpenGL", 0);
config->addOption("openglip", "SDL.OpenGLip", 0);
config->addOption("opengl", "SDL.OpenGL", 1);
config->addOption("openglip", "SDL.OpenGLip", 1);
config->addOption("SDL.SpecialFilter", 0);
config->addOption("SDL.SpecialFX", 0);
config->addOption("SDL.Vsync", 1);

78
src/drivers/sdl/glxwin.cpp
View File

@ -25,7 +25,6 @@
static Display *dpy = NULL;
static Window root;
static GLint att[] = { GLX_RGBA, GLX_DEPTH_SIZE, 24, GLX_DOUBLEBUFFER, None };
static XVisualInfo *vi = NULL;
static Colormap cmap;
static XSetWindowAttributes swa;
@ -33,9 +32,10 @@ static Window win;
static GLXContext glc = NULL;
static XWindowAttributes gwa;
static XEvent xev;
static GLint double_buffer_ena = True;
static GLuint gltexture = 0;
static int spawn_new_window = 1;
static int spawn_new_window = 0;
glxwin_shm_t *glx_shm = NULL;
@ -84,17 +84,32 @@ static glxwin_shm_t *open_shm(void)
return vaddr;
}
//************************************************************************
static void genTextures(void)
static void getAttrbList( GLint *buf )
{
int ipolate = 1;
int i=0;
buf[i] = GLX_RGBA; i++;
buf[i] = GLX_DEPTH_SIZE; i++;
buf[i] = 24; i++;
buf[i] = GLX_DOUBLEBUFFER ; i++;
buf[i] = double_buffer_ena; i++;
buf[i] = None;
}
//************************************************************************
static void genTextures( int ipolate )
{
glEnable(GL_TEXTURE_2D);
if ( gltexture )
{
printf("GL Texture already exists\n");
return;
}
glEnable(GL_TEXTURE_2D);
glGenTextures(1, &gltexture);
else
{
glGenTextures(1, &gltexture);
}
printf("Linear Interpolation on GL Texture: %s \n", ipolate ? "Enabled" : "Disabled");
glBindTexture(GL_TEXTURE_2D, gltexture);
@ -107,6 +122,9 @@ static void genTextures(void)
//************************************************************************
static int open_window(void)
{
GLint att[32];
getAttrbList( att );
dpy = XOpenDisplay(NULL);
@ -157,7 +175,7 @@ static int open_window(void)
glXMakeCurrent(dpy, win, glc);
genTextures();
genTextures(1);
glDisable(GL_DEPTH_TEST);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f); // Background color to black.
glMatrixMode(GL_PROJECTION);
@ -171,16 +189,16 @@ static int open_window(void)
return 0;
}
//************************************************************************
static void print_pixbuf(void)
{
for (int x=0; x<256; x++)
{
for (int y=0; y<256; y++)
{
printf("(%i,%i) = %08X \n", x, y, glx_shm->pixbuf[x*256+y] );
}
}
}
//static void print_pixbuf(void)
//{
// for (int x=0; x<256; x++)
// {
// for (int y=0; y<256; y++)
// {
// printf("(%i,%i) = %08X \n", x, y, glx_shm->pixbuf[y*256+x] );
// }
// }
//}
//************************************************************************
static void render_image(void)
{
@ -286,23 +304,10 @@ static int mainWindowLoop(void)
}
else if (xev.type == ConfigureNotify)
{
//XGetWindowAttributes(dpy, win, &gwa);
screen_width = xev.xconfigure.width;
screen_height = xev.xconfigure.height;
//if (gltexture) {
// glDeleteTextures(1, &gltexture);
//}
//gltexture=0;
//genTextures();
//printf("Resize Request: (%i,%i)\n", screen_width, screen_height );
render_image();
//glViewport(0, 0, gwa.width, gwa.height);
//DrawAQuad();
//glXSwapBuffers(dpy, win);
}
else if (xev.type == KeyPress)
{
@ -377,11 +382,18 @@ int spawn_glxwin( int flags )
return pid;
}
//************************************************************************
int init_gtk3_GLXContext( void )
int init_gtk3_GLXContext( int flags )
{
GLint att[32];
XWindowAttributes xattrb;
double_buffer_ena = (flags & GLXWIN_DOUBLE_BUFFER) ? 1 : 0;
getAttrbList( att );
printf("Init GLX Context\n");
printf("Double Buffering: %s\n", double_buffer_ena ? "Enabled" : "Disabled");
GdkWindow *gdkWin = gtk_widget_get_window(evbox);
@ -436,7 +448,7 @@ int init_gtk3_GLXContext( void )
glXMakeCurrent(dpy, win, glc);
genTextures();
genTextures( flags & GLXWIN_PIXEL_LINEAR_FILTER ? 1 : 0 );
glDisable(GL_DEPTH_TEST);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f); // Background color to black.
glMatrixMode(GL_PROJECTION);

6
src/drivers/sdl/glxwin.h
View File

@ -10,7 +10,11 @@
int spawn_glxwin( int flags );
int init_gtk3_GLXContext( void );
#define GLXWIN_PIXEL_LINEAR_FILTER 0x0001
#define GLXWIN_DOUBLE_BUFFER 0x0002
int init_gtk3_GLXContext( int flags );
int destroy_gtk3_GLXContext( void );
int gtk3_glx_render(void);

17
src/drivers/sdl/gui.cpp
View File

@ -3444,8 +3444,18 @@ int init_gui_video( int use_openGL )
if ( use_openGL )
{
int flags=0;
int linear_interpolation_ena=0;
int double_buffer_ena=0;
g_config->getOption("SDL.OpenGLip" , &linear_interpolation_ena );
g_config->getOption("SDL.DoubleBuffering", &double_buffer_ena );
if ( linear_interpolation_ena ) flags |= GLXWIN_PIXEL_LINEAR_FILTER;
if ( double_buffer_ena ) flags |= GLXWIN_DOUBLE_BUFFER;
destroy_cairo_screen();
init_gtk3_GLXContext();
init_gtk3_GLXContext( flags );
}
else
{
@ -3604,10 +3614,7 @@ drawAreaRealizeCB (GtkWidget *widget,
{
printf("Draw Area Realize\n");
if ( drawAreaGL )
{
init_gtk3_GLXContext();
}
init_gui_video( drawAreaGL );
}