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[641/906] display: feature check for GL extension functions

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This commit is contained in:
Matthew Waters 2013-01-10 00:30:03 +11:00
parent fa44030aa3
commit 4e60858f01
1 changed files with 41 additions and 51 deletions
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92
gst-libs/gst/gl/gstgldisplay.c
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@ -33,6 +33,7 @@
#include "gstgldisplay.h"
#include "gstgldownload.h"
#include "gstglmemory.h"
#include "gstglfeature.h"
#ifndef GLEW_VERSION_MAJOR
#define GLEW_VERSION_MAJOR 4
@ -341,20 +342,11 @@ _create_context_gles2 (GstGLDisplay * display, gint * gl_major, gint * gl_minor)
{
GLenum gl_err = GL_NO_ERROR;
if (glGetString (GL_VERSION))
GST_INFO ("GL_VERSION: %s", glGetString (GL_VERSION));
if (glGetString (GL_SHADING_LANGUAGE_VERSION))
GST_INFO ("GL_SHADING_LANGUAGE_VERSION: %s",
glGetString (GL_SHADING_LANGUAGE_VERSION));
else
GST_INFO ("Your driver does not support GLSL (OpenGL Shading Language)");
if (glGetString (GL_VENDOR))
GST_INFO ("GL_VENDOR: %s", glGetString (GL_VENDOR));
if (glGetString (GL_RENDERER))
GST_INFO ("GL_RENDERER: %s", glGetString (GL_RENDERER));
GST_INFO ("GL_VERSION: %s", glGetString (GL_VERSION));
GST_INFO ("GL_SHADING_LANGUAGE_VERSION: %s",
glGetString (GL_SHADING_LANGUAGE_VERSION));
GST_INFO ("GL_VENDOR: %s", glGetString (GL_VENDOR));
GST_INFO ("GL_RENDERER: %s", glGetString (GL_RENDERER));
gl_err = glGetError ();
if (gl_err != GL_NO_ERROR) {
@ -364,6 +356,9 @@ _create_context_gles2 (GstGLDisplay * display, gint * gl_major, gint * gl_minor)
if (!GL_ES_VERSION_2_0)
gst_gl_display_set_error (display, "OpenGL|ES >= 2.0 is required");
_gst_gl_feature_check_ext_functions (display, 0, 0,
glGetString (GL_EXTENSIONS));
display->priv->vtable.gen_fbo = (GstGLWindowCB) _gen_fbo_gles2;
display->priv->vtable.use_fbo = (GstGLWindowCB) _use_fbo_gles2;
display->priv->vtable.use_fbo_v2 = (GstGLWindowCB) _use_fbo_v2_gles2;
@ -371,8 +366,10 @@ _create_context_gles2 (GstGLDisplay * display, gint * gl_major, gint * gl_minor)
display->priv->vtable.gen_shader = (GstGLWindowCB) _gen_shader_gles2;
display->priv->vtable.del_shader = (GstGLWindowCB) _del_shader_gles2;
*gl_major = 2;
*gl_minor = 0;
if (gl_major)
*gl_major = 2;
if (gl_minor)
*gl_minor = 0;
return TRUE;
}
@ -382,57 +379,45 @@ _create_context_gles2 (GstGLDisplay * display, gint * gl_major, gint * gl_minor)
gboolean
_create_context_opengl (GstGLDisplay * display, gint * gl_major, gint * gl_minor)
{
GLenum err = GLEW_OK;
guint maj, min;
GLenum gl_err = GL_NO_ERROR;
GLenum err;
GString *opengl_version = NULL;
if (glewInit () != GLEW_OK) {
if ((err = glewInit ()) != GLEW_OK) {
gst_gl_display_set_error (display, "Failed to init GLEW: %s",
glewGetErrorString (err));
return TRUE;
}
/* OpenGL > 1.2.0 and Glew > 1.4.0 */
if (glGetString (GL_VERSION))
GST_INFO ("GL_VERSION: %s", glGetString (GL_VERSION));
GST_INFO ("GLEW_VERSION: %s", glewGetString (GLEW_VERSION));
if (glGetString (GL_SHADING_LANGUAGE_VERSION))
GST_INFO ("GL_SHADING_LANGUAGE_VERSION: %s",
glGetString (GL_SHADING_LANGUAGE_VERSION));
else
GST_WARNING ("Your driver does not support GLSL (OpenGL Shading Language)");
if (glGetString (GL_VENDOR))
GST_INFO ("GL_VENDOR: %s", glGetString (GL_VENDOR));
if (glGetString (GL_RENDERER))
GST_INFO ("GL_RENDERER: %s", glGetString (GL_RENDERER));
GST_INFO ("GL_VERSION: %s", glGetString (GL_VERSION));
GST_INFO ("GL_SHADING_LANGUAGE_VERSION: %s",
glGetString (GL_SHADING_LANGUAGE_VERSION));
GST_INFO ("GL_VENDOR: %s", glGetString (GL_VENDOR));
GST_INFO ("GL_RENDERER: %s", glGetString (GL_RENDERER));
gl_err = glGetError ();
if (gl_err != GL_NO_ERROR) {
gst_gl_display_set_error (display, "glGetString error: 0x%x", gl_err);
}
if (glGetString (GL_VERSION)) {
opengl_version =
g_string_truncate (g_string_new ((gchar *) glGetString (GL_VERSION)), 3);
opengl_version =
g_string_truncate (g_string_new ((gchar *) glGetString (GL_VERSION)), 3);
sscanf (opengl_version->str, "%d.%d", gl_major, gl_minor);
sscanf (opengl_version->str, "%d.%d", &maj, &min);
g_string_free (opengl_version, TRUE);
g_string_free (opengl_version, TRUE);
if ((*gl_major < 1) ||
(GLEW_VERSION_MAJOR < 1) ||
(*gl_major < 2 && *gl_major >= 1
&& *gl_minor < 2) || (GLEW_VERSION_MAJOR < 2
&& GLEW_VERSION_MAJOR >= 1 && GLEW_VERSION_MINOR < 4)) {
/* turn off the pipeline, the old drivers are not yet supported */
gst_gl_display_set_error (display,
"OpenGL >= 1.2.0 and Glew >= 1.4.0 is required");
}
if ((maj < 1) || (maj < 2 && maj >= 1 && min < 2)) {
/* turn off the pipeline, the old drivers are not yet supported */
gst_gl_display_set_error (display,
"OpenGL >= 1.2.0 and Glew >= 1.4.0 is required");
return FALSE;
}
_gst_gl_feature_check_ext_functions (display, maj, min,
(const gchar *) glGetString (GL_EXTENSIONS));
display->priv->vtable.gen_fbo = (GstGLWindowCB) _gen_fbo_opengl;
display->priv->vtable.use_fbo = (GstGLWindowCB) _use_fbo_opengl;
display->priv->vtable.use_fbo_v2 = (GstGLWindowCB) _use_fbo_v2_opengl;
@ -440,6 +425,11 @@ _create_context_opengl (GstGLDisplay * display, gint * gl_major, gint * gl_minor
display->priv->vtable.gen_shader = (GstGLWindowCB) _gen_shader_opengl;
display->priv->vtable.del_shader = (GstGLWindowCB) _del_shader_opengl;
if (gl_major)
*gl_major = maj;
if (gl_minor)
*gl_minor = min;
return TRUE;
}
#endif
@ -462,7 +452,7 @@ _compiled_api (void)
gpointer
gst_gl_display_thread_create_context (GstGLDisplay * display)
{
gint gl_major = 0, gl_minor = 0;
gint gl_major = 0;
gboolean ret = FALSE;
GError *error = NULL;
GstGLAPI compiled_api;
@ -505,11 +495,11 @@ gst_gl_display_thread_create_context (GstGLDisplay * display)
/* gl api specific code */
#if HAVE_OPENGL
if (!ret && USING_OPENGL(display))
ret = _create_context_opengl (display, &gl_major, &gl_minor);
ret = _create_context_opengl (display, &gl_major, NULL);
#endif
#if HAVE_GLES2
if (!ret && USING_GLES2(display))
ret = _create_context_gles2 (display, &gl_major, &gl_minor);
ret = _create_context_gles2 (display, &gl_major, NULL);
#endif
if (!ret || !gl_major) {