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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-24 09:10:36 +00:00
gldifferencematte: port to gl3/gles2
This commit is contained in:
parent
cdcd234613
commit
79935c7ee3
3 changed files with 63 additions and 52 deletions
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@ -466,32 +466,44 @@ const gchar *sin_fragment_source_gles2 =
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"}";
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"}";
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const gchar *interpolate_fragment_source =
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const gchar *interpolate_fragment_source =
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"#ifdef GL_ES\n"
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"precision mediump float;\n"
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"#endif\n"
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"varying vec2 v_texcoord;"
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"uniform sampler2D base;"
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"uniform sampler2D base;"
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"uniform sampler2D blend;"
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"uniform sampler2D blend;"
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"void main () {"
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"void main () {"
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"vec4 basecolor = texture2D (base, gl_TexCoord[0].st);"
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"vec4 basecolor = texture2D (base, v_texcoord);"
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"vec4 blendcolor = texture2D (blend, gl_TexCoord[0].st);"
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"vec4 blendcolor = texture2D (blend, v_texcoord);"
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"vec4 white = vec4(1.0);"
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"vec4 white = vec4(1.0);"
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"gl_FragColor = blendcolor + (1.0 - blendcolor.a) * basecolor;"
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"gl_FragColor = blendcolor + (1.0 - blendcolor.a) * basecolor;"
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"}";
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"}";
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const gchar *texture_interp_fragment_source =
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const gchar *texture_interp_fragment_source =
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"#ifdef GL_ES\n"
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"precision mediump float;\n"
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"#endif\n"
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"varying vec2 v_texcoord;"
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"uniform sampler2D base;"
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"uniform sampler2D base;"
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"uniform sampler2D blend;"
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"uniform sampler2D blend;"
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"uniform sampler2D alpha;"
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"uniform sampler2D alpha;"
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"void main () {"
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"void main () {"
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" vec4 basecolor = texture2D (base, gl_TexCoord[0].st);"
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" vec4 basecolor = texture2D (base, v_texcoord);"
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" vec4 blendcolor = texture2D (blend, gl_TexCoord[0].st);"
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" vec4 blendcolor = texture2D (blend, v_texcoord);"
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" vec4 alphacolor = texture2D (alpha, gl_TexCoord[0].st);"
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" vec4 alphacolor = texture2D (alpha, v_texcoord);"
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" gl_FragColor = (alphacolor * blendcolor) + (1.0 - alphacolor) * basecolor;"
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" gl_FragColor = (alphacolor * blendcolor) + (1.0 - alphacolor) * basecolor;"
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"}";
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"}";
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const gchar *difference_fragment_source =
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const gchar *difference_fragment_source =
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"#ifdef GL_ES\n"
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"precision mediump float;\n"
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"#endif\n"
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"varying vec2 v_texcoord;"
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"uniform sampler2D saved;"
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"uniform sampler2D saved;"
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"uniform sampler2D current;"
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"uniform sampler2D current;"
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"void main () {"
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"void main () {"
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"vec4 savedcolor = texture2D (saved, gl_TexCoord[0].st);"
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"vec4 savedcolor = texture2D (saved, v_texcoord);"
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"vec4 currentcolor = texture2D (current, gl_TexCoord[0].st);"
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"vec4 currentcolor = texture2D (current, v_texcoord);"
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"gl_FragColor = vec4 (step (0.12, length (savedcolor - currentcolor)));"
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"gl_FragColor = vec4 (step (0.12, length (savedcolor - currentcolor)));"
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"}";
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"}";
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@ -94,18 +94,24 @@ gst_gl_differencematte_init_gl_resources (GstGLFilter * filter)
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gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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differencematte->shader[i] =
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}
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gst_gl_shader_new (GST_GL_BASE_FILTER (filter)->context);
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if (!(differencematte->identity_shader =
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gst_gl_shader_new_default (context, &error))) {
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GST_ELEMENT_ERROR (differencematte, RESOURCE, NOT_FOUND, ("%s",
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"Failed to compile identity shader"), ("%s", error->message));
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return;
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}
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}
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if (!(differencematte->shader[0] =
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if (!(differencematte->shader[0] =
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gst_gl_shader_new_link_with_stages (context, &error,
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gst_gl_shader_new_link_with_stages (context, &error,
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gst_glsl_stage_new_default_vertex (context),
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gst_glsl_stage_new_default_vertex (context),
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gst_glsl_stage_new_with_string (context, GL_FRAGMENT_SHADER,
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gst_glsl_stage_new_with_string (context, GL_FRAGMENT_SHADER,
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GST_GLSL_VERSION_NONE, GST_GLSL_PROFILE_ES,
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GST_GLSL_VERSION_NONE,
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GST_GLSL_PROFILE_ES | GST_GLSL_PROFILE_COMPATIBILITY,
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difference_fragment_source), NULL))) {
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difference_fragment_source), NULL))) {
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GST_ELEMENT_ERROR (differencematte, RESOURCE, NOT_FOUND, ("%s",
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GST_ELEMENT_ERROR (differencematte, RESOURCE, NOT_FOUND, ("%s",
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gst_gl_context_get_error ()), (NULL));
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"Failed to compile difference shader"), ("%s", error->message));
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return;
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return;
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}
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}
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@ -113,10 +119,11 @@ gst_gl_differencematte_init_gl_resources (GstGLFilter * filter)
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gst_gl_shader_new_link_with_stages (context, &error,
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gst_gl_shader_new_link_with_stages (context, &error,
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gst_glsl_stage_new_default_vertex (context),
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gst_glsl_stage_new_default_vertex (context),
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gst_glsl_stage_new_with_string (context, GL_FRAGMENT_SHADER,
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gst_glsl_stage_new_with_string (context, GL_FRAGMENT_SHADER,
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GST_GLSL_VERSION_NONE, GST_GLSL_PROFILE_ES,
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GST_GLSL_VERSION_NONE,
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GST_GLSL_PROFILE_ES | GST_GLSL_PROFILE_COMPATIBILITY,
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hconv7_fragment_source_gles2), NULL))) {
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hconv7_fragment_source_gles2), NULL))) {
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GST_ELEMENT_ERROR (differencematte, RESOURCE, NOT_FOUND, ("%s",
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GST_ELEMENT_ERROR (differencematte, RESOURCE, NOT_FOUND, ("%s",
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gst_gl_context_get_error ()), (NULL));
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"Failed to compile convolution shader"), ("%s", error->message));
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return;
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return;
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}
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}
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@ -124,10 +131,11 @@ gst_gl_differencematte_init_gl_resources (GstGLFilter * filter)
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gst_gl_shader_new_link_with_stages (context, &error,
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gst_gl_shader_new_link_with_stages (context, &error,
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gst_glsl_stage_new_default_vertex (context),
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gst_glsl_stage_new_default_vertex (context),
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gst_glsl_stage_new_with_string (context, GL_FRAGMENT_SHADER,
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gst_glsl_stage_new_with_string (context, GL_FRAGMENT_SHADER,
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GST_GLSL_VERSION_NONE, GST_GLSL_PROFILE_ES,
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GST_GLSL_VERSION_NONE,
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GST_GLSL_PROFILE_ES | GST_GLSL_PROFILE_COMPATIBILITY,
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vconv7_fragment_source_gles2), NULL))) {
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vconv7_fragment_source_gles2), NULL))) {
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GST_ELEMENT_ERROR (differencematte, RESOURCE, NOT_FOUND, ("%s",
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GST_ELEMENT_ERROR (differencematte, RESOURCE, NOT_FOUND, ("%s",
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gst_gl_context_get_error ()), (NULL));
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"Failed to compile convolution shader"), ("%s", error->message));
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return;
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return;
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}
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}
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@ -135,19 +143,20 @@ gst_gl_differencematte_init_gl_resources (GstGLFilter * filter)
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gst_gl_shader_new_link_with_stages (context, &error,
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gst_gl_shader_new_link_with_stages (context, &error,
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gst_glsl_stage_new_default_vertex (context),
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gst_glsl_stage_new_default_vertex (context),
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gst_glsl_stage_new_with_string (context, GL_FRAGMENT_SHADER,
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gst_glsl_stage_new_with_string (context, GL_FRAGMENT_SHADER,
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GST_GLSL_VERSION_NONE, GST_GLSL_PROFILE_ES,
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GST_GLSL_VERSION_NONE,
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GST_GLSL_PROFILE_ES | GST_GLSL_PROFILE_COMPATIBILITY,
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texture_interp_fragment_source), NULL))) {
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texture_interp_fragment_source), NULL))) {
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GST_ELEMENT_ERROR (differencematte, RESOURCE, NOT_FOUND, ("%s",
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GST_ELEMENT_ERROR (differencematte, RESOURCE, NOT_FOUND, ("%s",
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gst_gl_context_get_error ()), (NULL));
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"Failed to compile interpolation shader"), ("%s", error->message));
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return;
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return;
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}
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}
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/* FIXME: this should really be per shader */
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/* FIXME: this should really be per shader */
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filter->draw_attr_position_loc =
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filter->draw_attr_position_loc =
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gst_gl_shader_get_attribute_location (differencematte->shader[3],
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gst_gl_shader_get_attribute_location (differencematte->shader[2],
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"a_position");
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"a_position");
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filter->draw_attr_texture_loc =
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filter->draw_attr_texture_loc =
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gst_gl_shader_get_attribute_location (differencematte->shader[3],
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gst_gl_shader_get_attribute_location (differencematte->shader[2],
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"a_texcoord");
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"a_texcoord");
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}
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}
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@ -162,6 +171,11 @@ gst_gl_differencematte_reset_gl_resources (GstGLFilter * filter)
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gl->DeleteTextures (1, &differencematte->savedbgtexture);
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gl->DeleteTextures (1, &differencematte->savedbgtexture);
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gl->DeleteTextures (1, &differencematte->newbgtexture);
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gl->DeleteTextures (1, &differencematte->newbgtexture);
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for (i = 0; i < 4; i++) {
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for (i = 0; i < 4; i++) {
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if (differencematte->identity_shader) {
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gst_object_unref (differencematte->identity_shader);
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differencematte->identity_shader = NULL;
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}
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if (differencematte->shader[i]) {
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if (differencematte->shader[i]) {
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gst_object_unref (differencematte->shader[i]);
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gst_object_unref (differencematte->shader[i]);
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differencematte->shader[i] = NULL;
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differencematte->shader[i] = NULL;
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@ -262,30 +276,20 @@ gst_gl_differencematte_get_property (GObject * object, guint prop_id,
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}
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}
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}
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}
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static void
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gst_gl_differencematte_save_texture (gint width, gint height, guint texture,
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gpointer stuff)
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{
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GstGLFilter *filter = GST_GL_FILTER (stuff);
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GstGLFuncs *gl = GST_GL_BASE_FILTER (filter)->context->gl_vtable;
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gl->MatrixMode (GL_PROJECTION);
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gl->LoadIdentity ();
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gst_gl_filter_draw_texture (filter, texture, width, height);
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}
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static void
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static void
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init_pixbuf_texture (GstGLContext * context, gpointer data)
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init_pixbuf_texture (GstGLContext * context, gpointer data)
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{
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{
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GstGLDifferenceMatte *differencematte = GST_GL_DIFFERENCEMATTE (data);
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GstGLDifferenceMatte *differencematte = GST_GL_DIFFERENCEMATTE (data);
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GstGLFilter *filter = GST_GL_FILTER (data);
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GstGLFilter *filter = GST_GL_FILTER (data);
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GstGLFuncs *gl = GST_GL_BASE_FILTER (filter)->context->gl_vtable;
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const GstGLFuncs *gl = context->gl_vtable;
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guint internal_format =
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gst_gl_sized_gl_format_from_gl_format_type (context, GL_RGBA,
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GL_UNSIGNED_BYTE);
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gl->DeleteTextures (1, &differencematte->newbgtexture);
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gl->DeleteTextures (1, &differencematte->newbgtexture);
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gl->GenTextures (1, &differencematte->newbgtexture);
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gl->GenTextures (1, &differencematte->newbgtexture);
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gl->BindTexture (GL_TEXTURE_2D, differencematte->newbgtexture);
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gl->BindTexture (GL_TEXTURE_2D, differencematte->newbgtexture);
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gl->TexImage2D (GL_TEXTURE_2D, 0, GL_RGBA,
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gl->TexImage2D (GL_TEXTURE_2D, 0, internal_format,
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(gint) differencematte->pbuf_width, (gint) differencematte->pbuf_height,
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(gint) differencematte->pbuf_width, (gint) differencematte->pbuf_height,
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0, GL_RGBA, GL_UNSIGNED_BYTE, differencematte->pixbuf);
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0, GL_RGBA, GL_UNSIGNED_BYTE, differencematte->pixbuf);
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gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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@ -296,7 +300,7 @@ init_pixbuf_texture (GstGLContext * context, gpointer data)
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if (differencematte->savedbgtexture == 0) {
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if (differencematte->savedbgtexture == 0) {
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gl->GenTextures (1, &differencematte->savedbgtexture);
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gl->GenTextures (1, &differencematte->savedbgtexture);
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gl->BindTexture (GL_TEXTURE_2D, differencematte->savedbgtexture);
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gl->BindTexture (GL_TEXTURE_2D, differencematte->savedbgtexture);
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gl->TexImage2D (GL_TEXTURE_2D, 0, GL_RGBA8,
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gl->TexImage2D (GL_TEXTURE_2D, 0, internal_format,
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GST_VIDEO_INFO_WIDTH (&filter->out_info),
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GST_VIDEO_INFO_WIDTH (&filter->out_info),
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GST_VIDEO_INFO_HEIGHT (&filter->out_info),
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GST_VIDEO_INFO_HEIGHT (&filter->out_info),
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0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
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0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
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@ -315,9 +319,6 @@ gst_gl_differencematte_diff (gint width, gint height, guint texture,
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GstGLFilter *filter = GST_GL_FILTER (stuff);
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GstGLFilter *filter = GST_GL_FILTER (stuff);
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GstGLFuncs *gl = GST_GL_BASE_FILTER (filter)->context->gl_vtable;
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GstGLFuncs *gl = GST_GL_BASE_FILTER (filter)->context->gl_vtable;
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gl->MatrixMode (GL_PROJECTION);
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gl->LoadIdentity ();
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gst_gl_shader_use (differencematte->shader[0]);
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gst_gl_shader_use (differencematte->shader[0]);
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gl->ActiveTexture (GL_TEXTURE0);
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gl->ActiveTexture (GL_TEXTURE0);
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@ -341,9 +342,6 @@ gst_gl_differencematte_hblur (gint width, gint height, guint texture,
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GstGLFilter *filter = GST_GL_FILTER (stuff);
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GstGLFilter *filter = GST_GL_FILTER (stuff);
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GstGLFuncs *gl = GST_GL_BASE_FILTER (filter)->context->gl_vtable;
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GstGLFuncs *gl = GST_GL_BASE_FILTER (filter)->context->gl_vtable;
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gl->MatrixMode (GL_PROJECTION);
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gl->LoadIdentity ();
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gst_gl_shader_use (differencematte->shader[1]);
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gst_gl_shader_use (differencematte->shader[1]);
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gl->ActiveTexture (GL_TEXTURE0);
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gl->ActiveTexture (GL_TEXTURE0);
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@ -353,7 +351,8 @@ gst_gl_differencematte_hblur (gint width, gint height, guint texture,
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gst_gl_shader_set_uniform_1fv (differencematte->shader[1], "kernel", 7,
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gst_gl_shader_set_uniform_1fv (differencematte->shader[1], "kernel", 7,
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differencematte->kernel);
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differencematte->kernel);
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gst_gl_shader_set_uniform_1f (differencematte->shader[1], "width", width);
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gst_gl_shader_set_uniform_1f (differencematte->shader[1], "gauss_width",
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width);
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gst_gl_filter_draw_texture (filter, texture, width, height);
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gst_gl_filter_draw_texture (filter, texture, width, height);
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}
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}
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@ -366,9 +365,6 @@ gst_gl_differencematte_vblur (gint width, gint height, guint texture,
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GstGLFilter *filter = GST_GL_FILTER (stuff);
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GstGLFilter *filter = GST_GL_FILTER (stuff);
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GstGLFuncs *gl = GST_GL_BASE_FILTER (filter)->context->gl_vtable;
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GstGLFuncs *gl = GST_GL_BASE_FILTER (filter)->context->gl_vtable;
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gl->MatrixMode (GL_PROJECTION);
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gl->LoadIdentity ();
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gst_gl_shader_use (differencematte->shader[2]);
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gst_gl_shader_use (differencematte->shader[2]);
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gl->ActiveTexture (GL_TEXTURE0);
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gl->ActiveTexture (GL_TEXTURE0);
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@ -378,7 +374,8 @@ gst_gl_differencematte_vblur (gint width, gint height, guint texture,
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gst_gl_shader_set_uniform_1fv (differencematte->shader[2], "kernel", 7,
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gst_gl_shader_set_uniform_1fv (differencematte->shader[2], "kernel", 7,
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differencematte->kernel);
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differencematte->kernel);
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gst_gl_shader_set_uniform_1f (differencematte->shader[2], "height", height);
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gst_gl_shader_set_uniform_1f (differencematte->shader[2], "gauss_height",
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height);
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gst_gl_filter_draw_texture (filter, texture, width, height);
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gst_gl_filter_draw_texture (filter, texture, width, height);
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}
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}
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@ -391,9 +388,6 @@ gst_gl_differencematte_interp (gint width, gint height, guint texture,
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GstGLFilter *filter = GST_GL_FILTER (stuff);
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GstGLFilter *filter = GST_GL_FILTER (stuff);
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GstGLFuncs *gl = GST_GL_BASE_FILTER (filter)->context->gl_vtable;
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GstGLFuncs *gl = GST_GL_BASE_FILTER (filter)->context->gl_vtable;
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gl->MatrixMode (GL_PROJECTION);
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glLoadIdentity ();
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gst_gl_shader_use (differencematte->shader[3]);
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gst_gl_shader_use (differencematte->shader[3]);
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gl->ActiveTexture (GL_TEXTURE0);
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gl->ActiveTexture (GL_TEXTURE0);
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@ -422,8 +416,12 @@ gst_gl_differencematte_identity (gint width, gint height, guint texture,
|
||||||
GstGLFilter *filter = GST_GL_FILTER (differencematte);
|
GstGLFilter *filter = GST_GL_FILTER (differencematte);
|
||||||
GstGLFuncs *gl = GST_GL_BASE_FILTER (filter)->context->gl_vtable;
|
GstGLFuncs *gl = GST_GL_BASE_FILTER (filter)->context->gl_vtable;
|
||||||
|
|
||||||
gl->MatrixMode (GL_PROJECTION);
|
gst_gl_shader_use (differencematte->identity_shader);
|
||||||
gl->LoadIdentity ();
|
|
||||||
|
gl->ActiveTexture (GL_TEXTURE0);
|
||||||
|
gl->BindTexture (GL_TEXTURE_2D, texture);
|
||||||
|
|
||||||
|
gst_gl_shader_set_uniform_1i (differencematte->identity_shader, "tex", 0);
|
||||||
|
|
||||||
gst_gl_filter_draw_texture (filter, texture, width, height);
|
gst_gl_filter_draw_texture (filter, texture, width, height);
|
||||||
}
|
}
|
||||||
|
@ -449,7 +447,7 @@ gst_gl_differencematte_filter_texture (GstGLFilter * filter, guint in_tex,
|
||||||
* this frame and next ones */
|
* this frame and next ones */
|
||||||
gst_gl_filter_render_to_target (filter, TRUE, in_tex,
|
gst_gl_filter_render_to_target (filter, TRUE, in_tex,
|
||||||
differencematte->savedbgtexture,
|
differencematte->savedbgtexture,
|
||||||
gst_gl_differencematte_save_texture, differencematte);
|
gst_gl_differencematte_identity, differencematte);
|
||||||
|
|
||||||
if (differencematte->pixbuf) {
|
if (differencematte->pixbuf) {
|
||||||
free (differencematte->pixbuf);
|
free (differencematte->pixbuf);
|
||||||
|
|
|
@ -37,6 +37,7 @@ struct _GstGLDifferenceMatte
|
||||||
{
|
{
|
||||||
GstGLFilter filter;
|
GstGLFilter filter;
|
||||||
|
|
||||||
|
GstGLShader *identity_shader;
|
||||||
GstGLShader *shader[4];
|
GstGLShader *shader[4];
|
||||||
|
|
||||||
gchar *location;
|
gchar *location;
|
||||||
|
|
Loading…
Reference in a new issue