isa/mutter
1
0
Fork 0
mirror of https://github.com/brl/mutter.git synced 2024-09-20 06:25:51 -04:00
Code Issues Packages Projects Releases Wiki Activity

cogl: Introduce private feature flags and check for ARB_fp

Browse Source 
The Cogl context has now a feature_flags_private enum that will allow us
to query and use OpenGL features without exposing them in the public
API.

The ARB_fragment_program extension is the first user of those flags.
Looking for this extension only happens in the gl driver as the gles
drivers will not expose them.

One can use _cogl_features_available_private() to check for the
availability of such private features.

While at it, reindent cogl-internal.h as described in CODING_STYLE.
This commit is contained in:
Damien Lespiau 2009-11-14 14:59:59 +00:00 committed by Robert Bragg
parent 8836c868a4
commit 56dd71dba0
13 changed files with 91 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
cogl/cogl-context.c
View File

@ -58,6 +58,7 @@ cogl_create_context (void)
/* Init default values */
_context->feature_flags = 0;
_context->feature_flags_private = 0;
_context->features_cached = FALSE;
/* Initialise the driver specific state */

5
cogl/cogl-context.h
View File

@ -44,8 +44,9 @@ typedef struct
typedef struct
{
/* Features cache */
CoglFeatureFlags feature_flags;
gboolean features_cached;
CoglFeatureFlags feature_flags;
CoglFeatureFlagsPrivate feature_flags_private;
gboolean features_cached;
CoglHandle default_material;

3
cogl/cogl-feature-private.h
View File

@ -59,6 +59,9 @@ struct _CoglFeatureData
const char *extension_names;
/* A set of feature flags to enable if the extension is available */
CoglFeatureFlags feature_flags;
/* A set of private feature flags to enable if the extension is available
* and for internal use only */
CoglFeatureFlagsPrivate feature_flags_private;
/* A list of functions required for this feature. Terminated with a
NULL name */
const CoglFeatureFunction *functions;

8
cogl/cogl-internal.h
View File

@ -174,4 +174,12 @@ _cogl_xlib_handle_event (XEvent *xevent);
#endif /* COGL_HAS_XLIB_SUPPORT */
typedef enum _CoglFeatureFlagsPrivate
{
COGL_FEATURE_PRIVATE_ARB_FP = (1 << 0)
} CoglFeatureFlagsPrivate;
gboolean
_cogl_features_available_private (CoglFeatureFlagsPrivate features);
#endif /* __COGL_INTERNAL_H */

11
cogl/cogl.c
View File

@ -507,6 +507,17 @@ cogl_features_available (CoglFeatureFlags features)
return (ctx->feature_flags & features) == features;
}
gboolean
_cogl_features_available_private (CoglFeatureFlagsPrivate features)
{
_COGL_GET_CONTEXT (ctx, 0);
if (!ctx->features_cached)
_cogl_features_init ();
return (ctx->feature_flags_private & features) == features;
}
/* XXX: This function should either be replaced with one returning
* integers, or removed/deprecated and make the
* _cogl_framebuffer_get_viewport* functions public.

2
cogl/driver/gl/cogl-context-driver.c
View File

@ -27,7 +27,7 @@
#include "cogl-context.h"
#define COGL_FEATURE_BEGIN(a, b, c, d, e, f)
#define COGL_FEATURE_BEGIN(a, b, c, d, e, f, g)
#define COGL_FEATURE_FUNCTION(ret, name, args) \
_context->drv.pf_ ## name = NULL;
#define COGL_FEATURE_END()

2
cogl/driver/gl/cogl-context-driver.h
View File

@ -30,7 +30,7 @@
#define APIENTRY
#endif
#define COGL_FEATURE_BEGIN(a, b, c, d, e, f)
#define COGL_FEATURE_BEGIN(a, b, c, d, e, f, g)
#define COGL_FEATURE_FUNCTION(ret, name, args) \
ret (APIENTRY * pf_ ## name) args;

42
cogl/driver/gl/cogl-feature-functions.h
View File

@ -30,7 +30,8 @@ COGL_FEATURE_BEGIN (offscreen, 255, 255,
functions */
"ARB:\0EXT\0",
"framebuffer_object\0",
COGL_FEATURE_OFFSCREEN)
COGL_FEATURE_OFFSCREEN,
0)
COGL_FEATURE_FUNCTION (void, glGenRenderbuffers,
(GLsizei n,
GLuint *renderbuffers))
@ -74,7 +75,8 @@ COGL_FEATURE_END ()
COGL_FEATURE_BEGIN (offscreen_blit, 255, 255,
"EXT\0",
"framebuffer_blit\0",
COGL_FEATURE_OFFSCREEN_BLIT)
COGL_FEATURE_OFFSCREEN_BLIT,
0)
COGL_FEATURE_FUNCTION (void, glBlitFramebuffer,
(GLint srcX0,
GLint srcY0,
@ -91,7 +93,8 @@ COGL_FEATURE_END ()
COGL_FEATURE_BEGIN (offscreen_multisample, 255, 255,
"EXT\0",
"framebuffer_multisample\0",
COGL_FEATURE_OFFSCREEN_MULTISAMPLE)
COGL_FEATURE_OFFSCREEN_MULTISAMPLE,
0)
COGL_FEATURE_FUNCTION (void, glRenderbufferStorageMultisample,
(GLenum target,
GLsizei samples,
@ -99,10 +102,31 @@ COGL_FEATURE_FUNCTION (void, glRenderbufferStorageMultisample,
GLsizei width,
GLsizei height))
COGL_FEATURE_END ()
COGL_FEATURE_BEGIN (read_pixels_async, 2, 1,
"EXT\0",
"pixel_buffer_object\0",
COGL_FEATURE_PBOS)
COGL_FEATURE_PBOS,
0)
COGL_FEATURE_END ()
/* ARB_fragment_program */
COGL_FEATURE_BEGIN (arbfp, 255, 255,
"ARB\0",
"fragment_program\0",
0,
COGL_FEATURE_PRIVATE_ARB_FP)
COGL_FEATURE_FUNCTION (void, glGenPrograms,
(GLsizei n,
GLuint *programs))
COGL_FEATURE_FUNCTION (void, glBindProgram,
(GLenum target,
GLuint program))
COGL_FEATURE_FUNCTION (void, glProgramString,
(GLenum target,
GLenum format,
GLsizei len,
const void *program))
COGL_FEATURE_END ()
/* The function names in OpenGL 2.0 are different so we can't easily
@ -112,7 +136,8 @@ COGL_FEATURE_BEGIN (shaders_glsl, 255, 255,
"shader_objects\0"
"vertex_shader\0"
"fragment_shader\0",
COGL_FEATURE_SHADERS_GLSL)
COGL_FEATURE_SHADERS_GLSL,
0)
COGL_FEATURE_FUNCTION (GLhandleARB, glCreateProgramObject,
(void))
COGL_FEATURE_FUNCTION (GLhandleARB, glCreateShaderObject,
@ -247,7 +272,8 @@ COGL_FEATURE_END ()
COGL_FEATURE_BEGIN (vbos, 1, 5,
"ARB\0",
"vertex_buffer_object\0",
COGL_FEATURE_VBOS)
COGL_FEATURE_VBOS,
0)
COGL_FEATURE_FUNCTION (void, glGenBuffers,
(GLuint n,
GLuint *buffers))
@ -281,6 +307,7 @@ COGL_FEATURE_END ()
COGL_FEATURE_BEGIN (in_1_2, 1, 2,
"\0",
"\0",
0,
0)
COGL_FEATURE_FUNCTION (void, glDrawRangeElements,
(GLenum mode,
@ -303,6 +330,7 @@ COGL_FEATURE_END ()
COGL_FEATURE_BEGIN (multitexture, 1, 3,
"ARB\0",
"multitexture\0",
0,
0)
COGL_FEATURE_FUNCTION (void, glActiveTexture,
(GLenum texture))
@ -314,6 +342,7 @@ COGL_FEATURE_END ()
COGL_FEATURE_BEGIN (blend_func_separate, 1, 4,
"EXT\0",
"blend_func_separate\0",
0,
0)
COGL_FEATURE_FUNCTION (void, glBlendFuncSeparate,
(GLenum srcRGB,
@ -326,6 +355,7 @@ COGL_FEATURE_END ()
COGL_FEATURE_BEGIN (blend_equation_separate, 2, 0,
"EXT\0",
"blend_equation_separate\0",
0,
0)
COGL_FEATURE_FUNCTION (void, glBlendEquationSeparate,
(GLenum modeRGB,

25
cogl/driver/gl/cogl.c
View File

@ -145,7 +145,8 @@ _cogl_check_driver_valid (GError **error)
/* Define a set of arrays containing the functions required from GL
for each feature */
#define COGL_FEATURE_BEGIN(name, min_gl_major, min_gl_minor, \
namespaces, extension_names, feature_flags) \
namespaces, extension_names, \
feature_flags, feature_flags_private) \
static const CoglFeatureFunction cogl_feature_ ## name ## _funcs[] = {
#define COGL_FEATURE_FUNCTION(ret, name, args) \
{ G_STRINGIFY (name), G_STRUCT_OFFSET (CoglContext, drv.pf_ ## name) },
@ -157,9 +158,10 @@ _cogl_check_driver_valid (GError **error)
/* Define an array of features */
#undef COGL_FEATURE_BEGIN
#define COGL_FEATURE_BEGIN(name, min_gl_major, min_gl_minor, \
namespaces, extension_names, feature_flags) \
namespaces, extension_names, \
feature_flags, feature_flags_private) \
{ min_gl_major, min_gl_minor, namespaces, \
extension_names, feature_flags, \
extension_names, feature_flags, feature_flags_private, \
cogl_feature_ ## name ## _funcs },
#undef COGL_FEATURE_FUNCTION
#define COGL_FEATURE_FUNCTION(ret, name, args)
@ -174,12 +176,13 @@ static const CoglFeatureData cogl_feature_data[] =
void
_cogl_features_init (void)
{
CoglFeatureFlags flags = 0;
const char *gl_extensions;
GLint max_clip_planes = 0;
GLint num_stencil_bits = 0;
int gl_major = 0, gl_minor = 0;
int i;
CoglFeatureFlags flags = 0;
CoglFeatureFlagsPrivate flags_private = 0;
const char *gl_extensions;
GLint max_clip_planes = 0;
GLint num_stencil_bits = 0;
int gl_major = 0, gl_minor = 0;
int i;
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
@ -219,9 +222,13 @@ _cogl_features_init (void)
if (_cogl_feature_check (cogl_feature_data + i,
gl_major, gl_minor,
gl_extensions))
{
flags |= cogl_feature_data[i].feature_flags;
flags_private |= cogl_feature_data[i].feature_flags_private;
}
/* Cache features */
ctx->feature_flags = flags;
ctx->feature_flags_private = flags_private;
ctx->features_cached = TRUE;
}

2
cogl/driver/gles/cogl-context-driver.c
View File

@ -28,7 +28,7 @@
#include "cogl-context.h"
#include "cogl-gles2-wrapper.h"
#define COGL_FEATURE_BEGIN(a, b, c, d, e, f)
#define COGL_FEATURE_BEGIN(a, b, c, d, e, f, g)
#define COGL_FEATURE_FUNCTION(ret, name, args) \
_context->drv.pf_ ## name = NULL;
#define COGL_FEATURE_END()

2
cogl/driver/gles/cogl-context-driver.h
View File

@ -31,7 +31,7 @@
#define APIENTRY
#endif
#define COGL_FEATURE_BEGIN(a, b, c, d, e, f)
#define COGL_FEATURE_BEGIN(a, b, c, d, e, f, g)
#define COGL_FEATURE_FUNCTION(ret, name, args) \
ret (APIENTRY * pf_ ## name) args;

6
cogl/driver/gles/cogl-feature-functions.h
View File

@ -27,7 +27,8 @@
COGL_FEATURE_BEGIN (offscreen, 255, 255,
"OES\0",
"framebuffer_object\0",
COGL_FEATURE_OFFSCREEN)
COGL_FEATURE_OFFSCREEN,
0)
COGL_FEATURE_FUNCTION (void, glGenRenderbuffers,
(GLsizei n,
GLuint *renderbuffers))
@ -71,5 +72,6 @@ COGL_FEATURE_END ()
COGL_FEATURE_BEGIN (element_index_uint, 255, 255,
"OES\0",
"element_index_uint\0",
COGL_FEATURE_UNSIGNED_INT_INDICES)
COGL_FEATURE_UNSIGNED_INT_INDICES,
0)
COGL_FEATURE_END ()

8
cogl/driver/gles/cogl.c
View File

@ -42,7 +42,8 @@ _cogl_check_driver_valid (GError **error)
/* Define a set of arrays containing the functions required from GL
for each feature */
#define COGL_FEATURE_BEGIN(name, min_gl_major, min_gl_minor, \
namespaces, extension_names, feature_flags) \
namespaces, extension_names, \
feature_flags, feature_flags_private) \
static const CoglFeatureFunction cogl_feature_ ## name ## _funcs[] = {
#define COGL_FEATURE_FUNCTION(ret, name, args) \
{ G_STRINGIFY (name), G_STRUCT_OFFSET (CoglContext, drv.pf_ ## name) },
@ -54,9 +55,10 @@ _cogl_check_driver_valid (GError **error)
/* Define an array of features */
#undef COGL_FEATURE_BEGIN
#define COGL_FEATURE_BEGIN(name, min_gl_major, min_gl_minor, \
namespaces, extension_names, feature_flags) \
namespaces, extension_names, \
feature_flags, feature_flags_private) \
{ min_gl_major, min_gl_minor, namespaces, \
extension_names, feature_flags, \
extension_names, feature_flags, feature_flags_private, \
cogl_feature_ ## name ## _funcs },
#undef COGL_FEATURE_FUNCTION
#define COGL_FEATURE_FUNCTION(ret, name, args)