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[141/906] some steps towards simplification. added a convenience function to gstglfilter and some comment here and there

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This commit is contained in:
Filippo Argiolas 2008-08-10 11:22:34 +02:00 committed by Matthew Waters
parent a53754cc28
commit 77c0b28031
4 changed files with 34 additions and 14 deletions
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7
gst-libs/gst/gl/gstgldisplay.c
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@ -1996,6 +1996,13 @@ gst_gl_display_gen_fbo (GstGLDisplay* display, gint width, gint height,
/* Called by glfilter */
/* this function really has to be simplified... do we really need to
set projection this way? Wouldn't be better a set_projection
separate call? or just make glut functions available out of
gst-libs and call it if needed on drawcallback? -- Filippo */
/* GLCB too.. I think that only needed parameters should be
* GstGLDisplay *display and gpointer data, or just gpointer data */
/* ..everything here has to be simplified! */
gboolean
gst_gl_display_use_fbo (GstGLDisplay* display, gint texture_fbo_width, gint texture_fbo_height,
GLuint fbo, GLuint depth_buffer, GLuint texture_fbo, GLCB cb,

16
gst-libs/gst/gl/gstglfilter.c
View file

@ -315,3 +315,19 @@ gst_gl_filter_do_transform (GstGLFilter* filter,
return TRUE;
}
/* convenience functions to simplify filter development */
void
gst_gl_filter_render_to_target (GstGLFilter *filter,
GLuint input, GLuint target,
GLCB func, gpointer data)
{
gst_gl_display_use_fbo (filter->display, filter->width, filter->height,
filter->fbo, filter->depthbuffer, target,
func,
filter->width, filter->height, input,
0, filter->width, 0, filter->height,
GST_GL_DISPLAY_PROJECTION_ORTHO2D,
data);
}

7
gst-libs/gst/gl/gstglfilter.h
View file

@ -72,6 +72,13 @@ struct _GstGLFilterClass
GType gst_gl_filter_get_type(void);
void
gst_gl_filter_render_to_target (GstGLFilter *filter,
GLuint input, GLuint target,
GLCB func, gpointer data);
G_END_DECLS
#endif

18
gst/gl/gstglfilterblur.c
View file

@ -206,20 +206,10 @@ gst_gl_filterblur_filter (GstGLFilter* filter, GstGLBuffer* inbuf,
//blocking call, generate a texture using the pool
gst_gl_display_gen_texture (filter->display, &midtexture) ;
//blocking call, use a FBO
gst_gl_display_use_fbo (filter->display, filter->width, filter->height,
filter->fbo, filter->depthbuffer, midtexture, gst_gl_filterblur_hcallback,
inbuf->width, inbuf->height, inbuf->texture,
0, filter->width, 0, filter->height,
GST_GL_DISPLAY_PROJECTION_ORTHO2D, filterblur);
//blocking call, use a FBO
gst_gl_display_use_fbo (filter->display, filter->width, filter->height,
filter->fbo, filter->depthbuffer, outbuf->texture, gst_gl_filterblur_vcallback,
inbuf->width, inbuf->height, midtexture,
0, filter->width, 0, filter->height,
GST_GL_DISPLAY_PROJECTION_ORTHO2D, filterblur);
gst_gl_filter_render_to_target (filter, inbuf->texture, midtexture,
gst_gl_filterblur_hcallback, filterblur);
gst_gl_filter_render_to_target (filter, midtexture, outbuf->texture,
gst_gl_filterblur_vcallback, filterblur);
//blocking call, put the texture in the pool
gst_gl_display_del_texture (filter->display, midtexture);