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glfiltershader: support gl3

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This commit is contained in:
Matthew Waters 2014-11-13 15:09:04 +11:00
parent 3772c83f94
commit 67762e8d58
1 changed files with 3 additions and 32 deletions
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35
ext/gl/gstglfiltershader.c
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@ -393,25 +393,10 @@ gst_gl_filtershader_hcallback (gint width, gint height, guint texture,
GstGLFilter *filter = GST_GL_FILTER (stuff);
GstGLFilterShader *filtershader = GST_GL_FILTERSHADER (filter);
GstGLFuncs *gl = filter->context->gl_vtable;
const GLfloat vVertices[] = {
-1.0f, -1.0f, -1.0f, 0.0f, 0.0f,
1.0, -1.0f, -1.0f, 1.0f, 0.0f,
1.0f, 1.0f, -1.0f, 1.0f, 1.0f,
-1.0f, 1.0f, -1.0f, 0.0f, 1.0f
};
GLushort indices[] = { 0, 1, 2, 0, 2, 3 };
#if GST_GL_HAVE_OPENGL
if (gst_gl_context_get_gl_api (filter->context) & GST_GL_API_OPENGL) {
gl->MatrixMode (GL_PROJECTION);
gl->LoadIdentity ();
}
#endif
gst_gl_shader_use (filtershader->shader0);
gl->ActiveTexture (GL_TEXTURE0);
gl->Enable (GL_TEXTURE_2D);
gl->BindTexture (GL_TEXTURE_2D, texture);
gst_gl_shader_set_uniform_1i (filtershader->shader0, "tex", 0);
@ -420,10 +405,10 @@ gst_gl_filtershader_hcallback (gint width, gint height, guint texture,
gst_gl_shader_set_uniform_1f (filtershader->shader0, "time",
filtershader->time);
filtershader->attr_position_loc =
filter->draw_attr_position_loc =
gst_gl_shader_get_attribute_location (filtershader->shader0,
"a_position");
filtershader->attr_texture_loc =
filter->draw_attr_texture_loc =
gst_gl_shader_get_attribute_location (filtershader->shader0,
"a_texcoord");
@ -442,19 +427,5 @@ gst_gl_filtershader_hcallback (gint width, gint height, guint texture,
gl->Clear (GL_COLOR_BUFFER_BIT);
gl->EnableVertexAttribArray (filtershader->attr_position_loc);
gl->EnableVertexAttribArray (filtershader->attr_texture_loc);
/* Load the vertex position */
gl->VertexAttribPointer (filtershader->attr_position_loc, 3, GL_FLOAT,
GL_FALSE, 5 * sizeof (GLfloat), vVertices);
/* Load the texture coordinate */
gl->VertexAttribPointer (filtershader->attr_texture_loc, 2, GL_FLOAT,
GL_FALSE, 5 * sizeof (GLfloat), &vVertices[3]);
gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, indices);
gl->DisableVertexAttribArray (filtershader->attr_position_loc);
gl->DisableVertexAttribArray (filtershader->attr_texture_loc);
gst_gl_filter_draw_texture (filter, texture, width, height);
}