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[238/906] fix glfilterglass (reason: videotestsrc rgb is by default bpp=32, depth=24, so alpha channel is 0)

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Julien Isorce 2008-09-25 22:25:29 +02:00 committed by Matthew Waters
parent 6a7ce4eee8
commit 49455136b7
2 changed files with 26 additions and 34 deletions
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2
gst/gl/gstglfiltercube.c
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@ -268,4 +268,6 @@ gst_gl_filter_cube_callback (gint width, gint height, guint texture, gpointer st
xrot+=0.3f; xrot+=0.3f;
yrot+=0.2f; yrot+=0.2f;
zrot+=0.4f; zrot+=0.4f;
glDisable(GL_DEPTH_TEST);
} }

58
gst/gl/gstglfilterglass.c
View file

@ -68,33 +68,27 @@ static const gchar *glass_fragment_source =
"uniform sampler2DRect tex;" "uniform sampler2DRect tex;"
"uniform float width, height;" "uniform float width, height;"
"void main () {" "void main () {"
" float xl = 0.0525*width;" " float p = 0.0525;"
" float xr = (1.0 - 0.0525)*width;" " float L1 = p*width;"
" float yl = 0.0875*height;" " float L2 = width - L1;"
" float yr = (1.0 - 0.0875)*height;" " float L3 = height - L1;"
" float r;" " float w = 1.0;"
" if (gl_TexCoord[0].x < xl && gl_TexCoord[0].y < yl)" " float r = L1;"
" r = (gl_TexCoord[0].x - xl) * (gl_TexCoord[0].x - xl) + (gl_TexCoord[0].y - yl) * (gl_TexCoord[0].y - yl);" " if (gl_TexCoord[0].x < L1 && gl_TexCoord[0].y < L1)"
" else if (gl_TexCoord[0].x > xr && gl_TexCoord[0].y < yl)" " r = sqrt( (gl_TexCoord[0].x - L1) * (gl_TexCoord[0].x - L1) + (gl_TexCoord[0].y - L1) * (gl_TexCoord[0].y - L1) );"
" r = (gl_TexCoord[0].x - xr) * (gl_TexCoord[0].x - xr) + (gl_TexCoord[0].y - yl) * (gl_TexCoord[0].y - yl);"
" else if (gl_TexCoord[0].x > xr && gl_TexCoord[0].y > yr)" " else if (gl_TexCoord[0].x > L2 && gl_TexCoord[0].y < L1)"
" r = (gl_TexCoord[0].x - xr) * (gl_TexCoord[0].x - xr) + (gl_TexCoord[0].y - yr) * (gl_TexCoord[0].y - yr);" " r = sqrt( (gl_TexCoord[0].x - L2) * (gl_TexCoord[0].x - L2) + (gl_TexCoord[0].y - L1) * (gl_TexCoord[0].y - L1) );"
" else if (gl_TexCoord[0].x < xl && gl_TexCoord[0].y > yr)"
" r = (gl_TexCoord[0].x - xl) * (gl_TexCoord[0].x - xl) + (gl_TexCoord[0].y - yr) * (gl_TexCoord[0].y - yr);" " else if (gl_TexCoord[0].x > L2 && gl_TexCoord[0].y > L3)"
" else if (gl_TexCoord[0].y < yl)" " r = sqrt( (gl_TexCoord[0].x - L2) * (gl_TexCoord[0].x - L2) + (gl_TexCoord[0].y - L3) * (gl_TexCoord[0].y - L3) );"
" r = (gl_TexCoord[0].y - yl) * (gl_TexCoord[0].y - yl);"
" else if (gl_TexCoord[0].y > yr)" " else if (gl_TexCoord[0].x < L1 && gl_TexCoord[0].y > L3)"
" r = (gl_TexCoord[0].y - yr) * (gl_TexCoord[0].y - yr);" " r = sqrt( (gl_TexCoord[0].x - L1) * (gl_TexCoord[0].x - L1) + (gl_TexCoord[0].y - L3) * (gl_TexCoord[0].y - L3) );"
" else if (gl_TexCoord[0].x < xl)" " if (r > L1)"
" r = (gl_TexCoord[0].x - xl) * (gl_TexCoord[0].x - xl);" " w = 0.0;"
" else if (gl_TexCoord[0].x > xr)"
" r = (gl_TexCoord[0].x - xr) * (gl_TexCoord[0].x - xr);"
" else"
" r = width;"
" float v = clamp(r, width, width + width/10.0);"
" v = (v - width) * 10.0 / width;"
" vec4 color = texture2DRect (tex, gl_TexCoord[0].st);" " vec4 color = texture2DRect (tex, gl_TexCoord[0].st);"
" gl_FragColor = vec4(color.rgb, color.a * (1.0 - v));" " gl_FragColor = vec4(color.rgb, gl_Color.a * w);"
"}"; "}";
static void static void
@ -299,9 +293,6 @@ gst_gl_filter_glass_callback (gint width, gint height, guint texture, gpointer s
} }
} }
glEnable (GL_BLEND);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glTranslatef(0.0f, 2.0f, -3.0f); glTranslatef(0.0f, 2.0f, -3.0f);
gst_gl_filter_glass_draw_background_gradient (); gst_gl_filter_glass_draw_background_gradient ();
@ -313,18 +304,17 @@ gst_gl_filter_glass_callback (gint width, gint height, guint texture, gpointer s
glRotated (sin (time_passed / 1200000.0) * 45.0, 0.0, 1.0, 0.0); glRotated (sin (time_passed / 1200000.0) * 45.0, 0.0, 1.0, 0.0);
} }
glPushMatrix (); glEnable (GL_BLEND);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
//Reflection //Reflection
gst_gl_filter_glass_draw_video_plane (filter, width, height, texture, gst_gl_filter_glass_draw_video_plane (filter, width, height, texture,
0.0f, 0.0f, 0.3f, 0.5f, TRUE); 0.0f, 0.0f, 0.3f, 0.0f, TRUE);
//Main video //Main video
gst_gl_filter_glass_draw_video_plane (filter, width, height, texture, gst_gl_filter_glass_draw_video_plane (filter, width, height, texture,
0.0f, -2.0f, 1.0f, 1.0f, FALSE); 0.0f, -2.0f, 1.0f, 1.0f, FALSE);
glActiveTextureARB (GL_TEXTURE0_ARB);
glDisable (GL_TEXTURE_RECTANGLE_ARB); glDisable (GL_TEXTURE_RECTANGLE_ARB);
glDisable (GL_BLEND);
glPopMatrix ();
} }