Add glitz_drawable_get_gl_string and direct rendering to the feature mask

5 files changed, 51 insertions, 0 deletions

diff --git a/src/glitz.h b/src/glitz.h
index 6fe2796..a228559 100644
--- a/src/glitz.h
+++ b/src/glitz.h
@@ -130,6 +130,7 @@ typedef enum {
 #define GLITZ_FEATURE_MULTI_DRAW_ARRAYS_MASK        (1L << 15)
 #define GLITZ_FEATURE_FRAMEBUFFER_OBJECT_MASK       (1L << 16)
 #define GLITZ_FEATURE_COPY_SUB_BUFFER_MASK          (1L << 17)
+#define GLITZ_FEATURE_DIRECT_RENDERING_MASK         (1L << 18)
 
 
 /* glitz_format.c */
@@ -282,6 +283,17 @@ glitz_drawable_get_features (glitz_drawable_t *drawable);
 glitz_drawable_format_t *
 glitz_drawable_get_format (glitz_drawable_t *drawable);
 
+typedef enum {
+    GLITZ_GL_STRING_VENDOR,
+    GLITZ_GL_STRING_RENDERER,
+    GLITZ_GL_STRING_VERSION,
+    GLITZ_GL_STRING_EXTENSIONS
+} glitz_gl_string_t;
+
+const char *
+glitz_drawable_get_gl_string (glitz_drawable_t  *drawable,
+			      glitz_gl_string_t name);
+
 
 /* glitz_surface.c */
 
diff --git a/src/glitz_drawable.c b/src/glitz_drawable.c
index a434f98..66dce22 100644
--- a/src/glitz_drawable.c
+++ b/src/glitz_drawable.c
@@ -408,3 +408,36 @@ glitz_drawable_get_format (glitz_drawable_t *drawable)
     return &drawable->format->d;
 }
 slim_hidden_def(glitz_drawable_get_format);
+
+const char *
+glitz_drawable_get_gl_string (glitz_drawable_t  *drawable,
+			      glitz_gl_string_t name)
+{
+    const glitz_gl_ubyte_t *string;
+    glitz_gl_enum_t	   gl_name;
+
+    switch (name) {
+    case GLITZ_GL_STRING_VENDOR:
+	gl_name = GLITZ_GL_VENDOR;
+	break;
+    case GLITZ_GL_STRING_RENDERER:
+	gl_name = GLITZ_GL_RENDERER;
+	break;
+    case GLITZ_GL_STRING_VERSION:
+	gl_name = GLITZ_GL_VERSION;
+	break;
+    case GLITZ_GL_STRING_EXTENSIONS:
+	gl_name = GLITZ_GL_EXTENSIONS;
+	break;
+    default:
+	return NULL;
+    }
+
+    drawable->backend->push_current (drawable, NULL, GLITZ_CONTEXT_CURRENT,
+				     NULL);
+    string = drawable->backend->gl->get_string (gl_name);
+    drawable->backend->pop_current (drawable);
+
+    return (const char *) string;
+}
+slim_hidden_def(glitz_drawable_get_gl_string);
diff --git a/src/glitz_gl.h b/src/glitz_gl.h
index 8020959..3036bc6 100644
--- a/src/glitz_gl.h
+++ b/src/glitz_gl.h
@@ -60,6 +60,8 @@ typedef ptrdiff_t glitz_gl_sizeiptr_t;
 #define GLITZ_GL_NO_ERROR          0x0
 #define GLITZ_GL_INVALID_OPERATION 0x0502
 
+#define GLITZ_GL_VENDOR                      0x1F00
+#define GLITZ_GL_RENDERER                    0x1F01
 #define GLITZ_GL_VERSION                     0x1F02
 #define GLITZ_GL_EXTENSIONS                  0x1F03
 
diff --git a/src/glitzint.h b/src/glitzint.h
index 2f0684c..eb9aac6 100644
--- a/src/glitzint.h
+++ b/src/glitzint.h
@@ -1077,6 +1077,7 @@ slim_hidden_proto(glitz_drawable_flush)
 slim_hidden_proto(glitz_drawable_finish)
 slim_hidden_proto(glitz_drawable_get_features)
 slim_hidden_proto(glitz_drawable_get_format)
+slim_hidden_proto(glitz_drawable_get_gl_string)
 slim_hidden_proto(glitz_surface_set_transform)
 slim_hidden_proto(glitz_surface_set_fill)
 slim_hidden_proto(glitz_surface_set_component_alpha)
diff --git a/src/glx/glitz_glx_context.c b/src/glx/glitz_glx_context.c
index 97a23d6..6510061 100644
--- a/src/glx/glitz_glx_context.c
+++ b/src/glx/glitz_glx_context.c
@@ -368,6 +368,9 @@ _glitz_glx_context_initialize (glitz_glx_screen_info_t *screen_info,
     if (screen_info->glx_feature_mask & GLITZ_GLX_FEATURE_COPY_SUB_BUFFER_MASK)
 	context->backend.feature_mask |= GLITZ_FEATURE_COPY_SUB_BUFFER_MASK;
 
+    if (glXIsDirect (screen_info->display_info->display, context->context))
+	context->backend.feature_mask |= GLITZ_FEATURE_DIRECT_RENDERING_MASK;
+
     context->initialized = 1;
 }