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[121/906] avoid use of GLSL functions when fragment_shader is not available

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git-svn-id: svn://svn.wobow.com/GStreamer_playground/gst-plugins-gl@581 93df14bb-0f41-7a43-8087-d3e2a2f0e464
This commit is contained in:
Julien Isorce 2008-07-12 01:13:08 +00:00 committed by Matthew Waters
parent 3505ae339c
commit f2ea87e951
1 changed files with 40 additions and 16 deletions
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56
gst-libs/gst/gl/gstgldisplay.c
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@ -718,17 +718,29 @@ gst_gl_display_thread_destroy_context (GstGLDisplay *display)
glutSetWindow (display->glutWinId);
glutReshapeFunc (NULL);
glutDestroyWindow (display->glutWinId);
glUseProgramObjectARB (0);
glDeleteObjectARB (display->GLSLProgram_YUY2);
glDeleteObjectARB (display->GLSLProgram_UYVY);
glDeleteObjectARB (display->GLSLProgram_I420_YV12);
glDeleteObjectARB (display->GLSLProgram_AYUV);
glDeleteObjectARB (display->GLSLProgram_to_YUY2);
glDeleteObjectARB (display->GLSLProgram_to_UYVY);
glDeleteObjectARB (display->GLSLProgram_to_I420_YV12);
glDeleteObjectARB (display->GLSLProgram_to_AYUV);
//colorspace_conversion specific
switch (display->colorspace_conversion)
{
case GST_GL_DISPLAY_CONVERSION_MESA:
case GST_GL_DISPLAY_CONVERSION_MATRIX:
break;
case GST_GL_DISPLAY_CONVERSION_GLSL:
{
glUseProgramObjectARB (0);
glDeleteObjectARB (display->GLSLProgram_YUY2);
glDeleteObjectARB (display->GLSLProgram_UYVY);
glDeleteObjectARB (display->GLSLProgram_I420_YV12);
glDeleteObjectARB (display->GLSLProgram_AYUV);
glDeleteObjectARB (display->GLSLProgram_to_YUY2);
glDeleteObjectARB (display->GLSLProgram_to_UYVY);
glDeleteObjectARB (display->GLSLProgram_to_I420_YV12);
glDeleteObjectARB (display->GLSLProgram_to_AYUV);
}
break;
default:
g_assert_not_reached ();
}
glDeleteFramebuffersEXT (1, &display->upload_fbo);
glDeleteRenderbuffersEXT(1, &display->upload_depth_buffer);
@ -1305,7 +1317,9 @@ gst_gl_display_thread_use_fbo (GstGLDisplay *display)
glDrawBuffer(GL_NONE);
glUseProgramObjectARB (0);
//in case of the developer forgot the de-init use of GLSL in the scene code
if (display->colorspace_conversion == GST_GL_DISPLAY_CONVERSION_GLSL)
glUseProgramObjectARB (0);
glDisable(GL_TEXTURE_RECTANGLE_ARB);
@ -1341,8 +1355,14 @@ static void
gst_gl_display_thread_gen_shader (GstGLDisplay* display)
{
glutSetWindow (display->glutWinId);
display->gen_handle_shader =
gst_gl_display_load_fragment_shader (display->gen_text_shader);
if (GLEW_ARB_fragment_shader)
display->gen_handle_shader =
gst_gl_display_load_fragment_shader (display->gen_text_shader);
else
{
g_print ("One of the filter required ARB_fragment_shader\n");
display->isAlive = FALSE;
}
g_cond_signal (display->cond_gen_shader);
}
@ -1455,7 +1475,9 @@ void gst_gl_display_on_draw(void)
//opengl scene
glUseProgramObjectARB (0);
//make sure that the environnement is clean
if (display->colorspace_conversion == GST_GL_DISPLAY_CONVERSION_GLSL)
glUseProgramObjectARB (0);
glDisable (GL_TEXTURE_RECTANGLE_ARB);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, 0);
@ -2367,8 +2389,10 @@ gst_gl_display_thread_do_upload_draw (GstGLDisplay* display, GLuint texture,
glEnd ();
glDrawBuffer(GL_NONE);
glUseProgramObjectARB (0);
//we are done with the shader
if (display->colorspace_conversion == GST_GL_DISPLAY_CONVERSION_GLSL)
glUseProgramObjectARB (0);
glDisable(GL_TEXTURE_RECTANGLE_ARB);