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* opengl.c: support "cube" and "transparent-cube" effect (with the

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--opengl-effect option). Now MacOSX guys you can write the opengl provider
 interface ;)
This commit is contained in:
Cyril Deguet 2004-07-31 11:38:22 +00:00
parent 1573323869
commit 91d3867d40
1 changed files with 39 additions and 8 deletions
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47
modules/video_output/opengl.c
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@ -49,6 +49,11 @@
#define VLCGL_RGB_FORMAT GL_RGBA
#define VLCGL_RGB_TYPE GL_UNSIGNED_BYTE
/* OpenGL effects */
#define OPENGL_EFFECT_NONE 1
#define OPENGL_EFFECT_CUBE 2
#define OPENGL_EFFECT_TRANSPARENT_CUBE 4
/*****************************************************************************
* Vout interface
*****************************************************************************/
@ -76,7 +81,7 @@ vlc_module_begin();
add_shortcut( "opengl" );
set_callbacks( CreateVout, DestroyVout );
add_integer( "opengl-effect", 0, NULL, EFFECT_TEXT,
add_string( "opengl-effect", "none", NULL, EFFECT_TEXT,
EFFECT_LONGTEXT, VLC_TRUE );
vlc_module_end();
@ -106,7 +111,6 @@ static int CreateVout( vlc_object_t *p_this )
{
vout_thread_t *p_vout = (vout_thread_t *)p_this;
vout_sys_t *p_sys;
vlc_value_t val;
/* Allocate structure */
p_vout->p_sys = p_sys = malloc( sizeof( vout_sys_t ) );
@ -116,9 +120,7 @@ static int CreateVout( vlc_object_t *p_this )
return VLC_EGENERIC;
}
var_Create( p_vout, "opengl-effect", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
var_Get( p_vout, "opengl-effect", &val );
p_sys->i_effect = val.i_int;
var_Create( p_vout, "opengl-effect", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
/* A texture must have a size aligned on a power of 2 */
p_sys->i_tex_width = GetAlignedSize( p_vout->render.i_width );
@ -173,6 +175,7 @@ static int Init( vout_thread_t *p_vout )
{
vout_sys_t *p_sys = p_vout->p_sys;
int i_pixel_pitch;
vlc_value_t val;
p_sys->p_vout->pf_init( p_sys->p_vout );
@ -248,10 +251,38 @@ static int Init( vout_thread_t *p_vout )
glDisable(GL_CULL_FACE);
glClear( GL_COLOR_BUFFER_BIT );
if( p_sys->i_effect == 1 )
/* Check if the user asked for useless visual effects */
var_Get( p_vout, "opengl-effect", &val );
if( !val.psz_string || !strcmp( val.psz_string, "none" ))
{
glEnable( GL_CULL_FACE);
p_sys->i_effect = OPENGL_EFFECT_NONE;
}
else if( !strcmp( val.psz_string, "cube" ) )
{
p_sys->i_effect = OPENGL_EFFECT_CUBE;
glEnable( GL_CULL_FACE);
//glEnable( GL_DEPTH_TEST );
}
else if( !strcmp( val.psz_string, "transparent-cube" ) )
{
p_sys->i_effect = OPENGL_EFFECT_TRANSPARENT_CUBE;
glDisable( GL_DEPTH_TEST );
glEnable( GL_BLEND );
glBlendFunc( GL_SRC_ALPHA, GL_ONE );
}
else
{
msg_Warn( p_vout, "no valid opengl effect provided, using "
"\"none\"" );
p_sys->i_effect = OPENGL_EFFECT_NONE;
}
if( val.psz_string ) free( val.psz_string );
if( p_sys->i_effect & ( OPENGL_EFFECT_CUBE |
OPENGL_EFFECT_TRANSPARENT_CUBE ) )
{
/* Set the perpective */
glMatrixMode( GL_PROJECTION );
glLoadIdentity();
@ -321,7 +352,7 @@ static void Render( vout_thread_t *p_vout, picture_t *p_pic )
p_sys->i_tex_width, p_sys->i_tex_height , 0,
VLCGL_RGB_FORMAT, VLCGL_RGB_TYPE, p_sys->p_buffer );
if( p_sys->i_effect != 1 )
if( p_sys->i_effect == OPENGL_EFFECT_NONE )
{
glEnable( GL_TEXTURE_2D );
glBegin( GL_POLYGON );