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gl: Store the GL flavor (Desktop or ES) in the device struct

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Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Alexandros Frantzis 2011-02-14 15:11:07 +02:00 • committed by Chris Wilson
parent f1eef40c2a
commit 4804160fd1
3 changed files with 28 additions and 0 deletions
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1
src/cairo-gl-device.c
View file

@ -183,6 +183,7 @@ _cairo_gl_context_init (cairo_gl_context_t *ctx)
_cairo_gl_has_extension ("GL_MESA_pack_invert");
ctx->current_operator = -1;
ctx->gl_flavor = _cairo_gl_get_flavor ();
status = _cairo_gl_context_init_shaders (ctx);
if (unlikely (status))

16
src/cairo-gl-info.c
View file

@ -55,6 +55,22 @@ _cairo_gl_get_version (void)
return CAIRO_GL_VERSION_ENCODE (major, minor);
}
cairo_gl_flavor_t
_cairo_gl_get_flavor (void)
{
const char *version = (const char *) glGetString (GL_VERSION);
cairo_gl_flavor_t flavor;
if (version == NULL)
flavor = CAIRO_GL_FLAVOR_NONE;
else if (strstr (version, "OpenGL ES") != NULL)
flavor = CAIRO_GL_FLAVOR_ES;
else
flavor = CAIRO_GL_FLAVOR_DESKTOP;
return flavor;
}
cairo_bool_t
_cairo_gl_has_extension (const char *ext)
{

11
src/cairo-gl-private.h
View file

@ -86,6 +86,13 @@
/* VBO size that we allocate, smaller size means we gotta flush more often */
#define CAIRO_GL_VBO_SIZE 16384
/* GL flavor */
typedef enum cairo_gl_flavor {
CAIRO_GL_FLAVOR_NONE = 0,
CAIRO_GL_FLAVOR_DESKTOP = 1,
CAIRO_GL_FLAVOR_ES = 2
} cairo_gl_flavor_t;
/* Indices for vertex attributes used by BindAttribLocation etc */
enum {
CAIRO_GL_VERTEX_ATTRIB_INDEX = 0,
@ -279,6 +286,7 @@ struct _cairo_gl_context {
cairo_bool_t has_mesa_pack_invert;
cairo_gl_dispatch_t dispatch;
GLfloat modelviewprojection_matrix[16];
cairo_gl_flavor_t gl_flavor;
void (*acquire) (void *ctx);
void (*release) (void *ctx);
@ -557,6 +565,9 @@ _cairo_gl_shader_fini (cairo_gl_context_t *ctx, cairo_gl_shader_t *shader);
cairo_private int
_cairo_gl_get_version (void);
cairo_private cairo_gl_flavor_t
_cairo_gl_get_flavor (void);
cairo_private cairo_bool_t
_cairo_gl_has_extension (const char *ext);