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2007-04-28 Matthew Allum <mallum@openedhand.com>

Browse Source 
* clutter/Makefile.am:
        * clutter/clutter-debug.h:
        * clutter/clutter-fixed.h:
        * clutter/clutter-main.c:
        * clutter/cogl/gles/Makefile.am:
        * clutter/cogl/gles/cogl-defines.h:
        * clutter/cogl/gles/cogl.c:
        * clutter/egl/clutter-backend-egl.c:
        * clutter/egl/clutter-backend-egl.h:
        * clutter/egl/clutter-stage-egl.c:
        * configure.ac:
        Populate most stubs for cogl GL/ES implementation.
        (against vincent - see http://svn.o-hand.com/repos/misc/ogles)
        Add various fixups to EGL backend.
        Code builds and runs (on 16bpp) but yet displays much (is close!)

        * clutter/pango/pangoclutter-render.c:
        comment out some rouge glBegin/end calls.
This commit is contained in:
Matthew Allum 2007-04-28 00:37:11 +00:00
parent 79469940bc
commit 866e4ed0dd
13 changed files with 456 additions and 34 deletions
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21
ChangeLog
View File

@ -1,3 +1,24 @@
2007-04-28 Matthew Allum <mallum@openedhand.com>
* clutter/Makefile.am:
* clutter/clutter-debug.h:
* clutter/clutter-fixed.h:
* clutter/clutter-main.c:
* clutter/cogl/gles/Makefile.am:
* clutter/cogl/gles/cogl-defines.h:
* clutter/cogl/gles/cogl.c:
* clutter/egl/clutter-backend-egl.c:
* clutter/egl/clutter-backend-egl.h:
* clutter/egl/clutter-stage-egl.c:
* configure.ac:
Populate most stubs for cogl GL/ES implementation.
(against vincent - see http://svn.o-hand.com/repos/misc/ogles)
Add various fixups to EGL backend.
Code builds and runs (on 16bpp) but yet displays much (is close!)
* clutter/pango/pangoclutter-render.c:
comment out some rouge glBegin/end calls.
2007-04-27 Matthew Allum <mallum@openedhand.com>
* clutter/Makefile.am:

2
clutter/Makefile.am
View File

@ -158,7 +158,7 @@ source_h_priv = \
libclutter_@CLUTTER_FLAVOUR@_@CLUTTER_API_VERSION@_la_LIBADD = \
$(CLUTTER_LIBS) pango/libpangoclutter.la \
@CLUTTER_FLAVOUR@/libclutter-@CLUTTER_FLAVOUR@.la \
cogl/gl/libclutter-cogl.la
cogl/@CLUTTER_COGL@/libclutter-cogl.la
libclutter_@CLUTTER_FLAVOUR@_@CLUTTER_API_VERSION@_la_SOURCES = \
$(source_c) $(source_h) $(source_h_priv)

3
clutter/clutter-debug.h
View File

@ -14,7 +14,8 @@ typedef enum {
CLUTTER_DEBUG_GL = 1 << 5,
CLUTTER_DEBUG_ALPHA = 1 << 6,
CLUTTER_DEBUG_BEHAVIOUR = 1 << 7,
CLUTTER_DEBUG_PANGO = 1 << 8
CLUTTER_DEBUG_PANGO = 1 << 8,
CLUTTER_DEBUG_BACKEND = 1 << 9
} ClutterDebugFlag;
#ifdef CLUTTER_ENABLE_DEBUG

1
clutter/clutter-fixed.h
View File

@ -48,6 +48,7 @@ typedef gint32 ClutterAngle; /* angle such that 1024 == 2*PI */
#define CFX_Q 16 /* Decimal part size in bits */
#define CFX_ONE (1 << CFX_Q) /* 1 */
#define CFX_HALF 32768
#define CFX_MAX 0x7fffffff
#define CFX_MIN 0x80000000

5
clutter/clutter-main.c
View File

@ -66,6 +66,7 @@ static const GDebugKey clutter_debug_keys[] = {
{ "alpha", CLUTTER_DEBUG_ALPHA },
{ "behaviour", CLUTTER_DEBUG_BEHAVIOUR },
{ "pango", CLUTTER_DEBUG_PANGO },
{ "backend", CLUTTER_DEBUG_BACKEND },
};
#endif /* CLUTTER_ENABLE_DEBUG */
@ -614,13 +615,17 @@ clutter_init (int *argc,
g_type_init ();
if (clutter_parse_args (argc, argv) == FALSE)
{
CLUTTER_NOTE (MISC, "failed to parse arguments.");
return CLUTTER_INIT_ERROR_INTERNAL;
}
context = clutter_context_get_default ();
stage_error = NULL;
if (!_clutter_backend_init_stage (context->backend, &stage_error))
{
CLUTTER_NOTE (MISC, "stage failed to initialise.");
g_critical (stage_error->message);
g_error_free (stage_error);
return CLUTTER_INIT_ERROR_INTERNAL;

1
clutter/cogl/gles/Makefile.am
View File

@ -15,4 +15,5 @@ noinst_LTLIBRARIES = libclutter-cogl.la
libclutter_cogl_la_SOURCES = \
$(top_srcdir)/clutter/cogl/cogl.h \
$(top_srcdir)/clutter/cogl/gl/cogl-defines.h \
cogl.c

11
clutter/cogl/gles/cogl-defines.h
View File

@ -23,6 +23,8 @@
* Boston, MA 02111-1307, USA.
*/
#include <GLES/gl.h>
#ifndef __COGL_DEFINES_H__
#define __COGL_DEFINES_H__
@ -435,6 +437,15 @@ G_BEGIN_DECLS
#define CGL_WEIGHT_ARRAY_BUFFER_BINDING_OES GL_WEIGHT_ARRAY_BUFFER_BINDING_OES
#define CGL_TEXTURE_CROP_RECT_OES GL_TEXTURE_CROP_RECT_OES
typedef GLenum COGLenum;
typedef GLint COGLint;
/* extras */
#define CGL_TEXTURE_2D GL_TEXTURE_2D
#define CGL_ARGB GL_ARGB
#define CGL_TEXTURE_RECTANGLE_ARB 0 /* Its unlikely we support this */
G_END_DECLS
#endif

358
clutter/cogl/gles/cogl.c
View File

@ -23,9 +23,19 @@
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include "cogl.h"
#include <GLES/gl.h>
#include <GLES/gl.h>
#include <string.h>
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
#define PIXEL_TYPE GL_UNSIGNED_BYTE
#else
#define PIXEL_TYPE GL_UNSIGNED_INT_8_8_8_8_REV
#endif
static gulong __enable_flags = 0;
#if COGL_DEBUG
struct token_string
@ -97,6 +107,10 @@ cogl_paint_init (ClutterColor *color)
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
glDisable (GL_LIGHTING);
glDisable (GL_DEPTH_TEST);
cogl_enable (CGL_ENABLE_BLEND);
glTexEnvx (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
}
/* FIXME: inline most of these */
@ -113,7 +127,7 @@ cogl_pop_matrix (void)
}
void
cogl_scaled (ClutterFixed x, ClutterFixed y)
cogl_scale (ClutterFixed x, ClutterFixed y)
{
GE( glScalex (x, y, CFX_ONE) );
}
@ -144,8 +158,346 @@ cogl_rotatex (ClutterFixed angle,
void
cogl_rotate (gint angle, gint x, gint y, gint z)
{
GE( glRotatef (CLUTTER_INT_TO_FIXED(angle),
GE( glRotatex (CLUTTER_INT_TO_FIXED(angle),
CLUTTER_INT_TO_FIXED(x),
CLUTTER_INT_TO_FIXED(y),
CLUTTER_INT_TO_FIXED(z)) );
}
void
cogl_enable (gulong flags)
{
/* This function essentially caches glEnable state() in the
* hope of lessening number GL traffic.
*/
if (flags & CGL_ENABLE_BLEND)
{
if (!(__enable_flags & CGL_ENABLE_BLEND))
{
glEnable (GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
}
__enable_flags |= CGL_ENABLE_BLEND;
}
else if (__enable_flags & CGL_ENABLE_BLEND)
{
glDisable (GL_BLEND);
__enable_flags &= ~CGL_ENABLE_BLEND;
}
if (flags & CGL_ENABLE_TEXTURE_2D)
{
if (!(__enable_flags & CGL_ENABLE_TEXTURE_2D))
glEnable (GL_TEXTURE_2D);
__enable_flags |= CGL_ENABLE_TEXTURE_2D;
}
else if (__enable_flags & CGL_ENABLE_TEXTURE_2D)
{
glDisable (GL_TEXTURE_2D);
__enable_flags &= ~CGL_ENABLE_TEXTURE_2D;
}
#if 0
if (flags & CGL_ENABLE_TEXTURE_RECT)
{
if (!(__enable_flags & CGL_ENABLE_TEXTURE_RECT))
glEnable (GL_TEXTURE_RECTANGLE_ARB);
__enable_flags |= CGL_ENABLE_TEXTURE_RECT;
}
else if (__enable_flags & CGL_ENABLE_TEXTURE_RECT)
{
glDisable (GL_TEXTURE_RECTANGLE_ARB);
__enable_flags &= ~CGL_ENABLE_TEXTURE_RECT;
}
#endif
if (flags & CGL_ENABLE_ALPHA_TEST)
{
if (!(__enable_flags & CGL_ENABLE_ALPHA_TEST))
glEnable (GL_ALPHA_TEST);
__enable_flags |= CGL_ENABLE_ALPHA_TEST;
}
else if (__enable_flags & CGL_ENABLE_ALPHA_TEST)
{
glDisable (GL_ALPHA_TEST);
__enable_flags &= ~CGL_ENABLE_ALPHA_TEST;
}
}
void
cogl_color (ClutterColor *color)
{
#define FIX(x) CFX_DIV(CLUTTER_INT_TO_FIXED(x), CFX_255)
GE( glColor4x (FIX(color->red),
FIX(color->green),
FIX(color->blue),
FIX(color->alpha)) );
#undef FIX
}
gboolean
cogl_texture_can_size (COGLenum pixel_format,
COGLenum pixel_type,
int width,
int height)
{
GLint new_width = 0;
/* FIXME */
return TRUE;
#if 0
GE( glTexImage2D (GL_PROXY_TEXTURE_2D, 0, GL_RGBA,
width, height, 0 /* border */,
pixel_format, pixel_type, NULL) );
GE( glGetTexLevelParameteriv (GL_PROXY_TEXTURE_2D, 0,
GL_TEXTURE_WIDTH, &new_width) );
return new_width != 0;
#endif
}
void
cogl_texture_quad (gint x1,
gint x2,
gint y1,
gint y2,
ClutterFixed tx1,
ClutterFixed ty1,
ClutterFixed tx2,
ClutterFixed ty2)
{
GLfixed quadVerts[] = {
x1, y1, 0,
x2, y1, 0,
x2, y2, 0,
x2, y2, 0,
x1, y2, 0,
x1, y1, 0
};
GLfixed quadTex[] = {
tx1, ty1,
tx2, ty1,
tx2, ty2,
tx2, ty2,
tx1, ty2,
tx1, ty1
};
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glVertexPointer(3, GL_FIXED, 0, quadVerts);
glTexCoordPointer(2, GL_FIXED, 0, quadTex);
glDrawArrays(GL_TRIANGLES, 0, 6);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisableClientState(GL_VERTEX_ARRAY);
}
void
cogl_textures_create (guint num, guint *textures)
{
GE( glGenTextures (num, textures) );
}
void
cogl_textures_destroy (guint num, const guint *textures)
{
GE( glDeleteTextures (num, textures) );
}
void
cogl_texture_bind (COGLenum target, guint texture)
{
GE( glBindTexture (target, texture) );
}
void
cogl_texture_set_alignment (COGLenum target,
guint alignment,
guint row_length)
{
/* GE( glPixelStorei (GL_UNPACK_ROW_LENGTH, row_length) ); */
GE( glPixelStorei (GL_UNPACK_ALIGNMENT, alignment) );
}
void
cogl_texture_set_filters (COGLenum target,
COGLenum min_filter,
COGLenum max_filter)
{
GE( glTexParameteri(target, GL_TEXTURE_MAG_FILTER, max_filter) );
GE( glTexParameteri(target, GL_TEXTURE_MIN_FILTER, min_filter) );
}
void
cogl_texture_set_wrap (COGLenum target,
COGLenum wrap_s,
COGLenum wrap_t)
{
GE( glTexParameteri(target, GL_TEXTURE_WRAP_S, wrap_s) );
GE( glTexParameteri(target, GL_TEXTURE_WRAP_T, wrap_s) );
}
void
cogl_texture_image_2d (COGLenum target,
COGLint internal_format,
gint width,
gint height,
COGLenum format,
COGLenum type,
const guchar* pixels)
{
GE( glTexImage2D (target,
0, /* No mipmap support as yet */
internal_format,
width,
height,
0, /* 0 pixel border */
format,
type,
pixels) );
}
void
cogl_texture_sub_image_2d (COGLenum target,
gint xoff,
gint yoff,
gint width,
gint height,
COGLenum format,
COGLenum type,
const guchar* pixels)
{
GE( glTexSubImage2D (target,
0,
xoff,
yoff,
width,
height,
format,
type,
pixels));
}
void
cogl_rectangle (gint x, gint y, guint width, guint height)
{
#define FIX CLUTTER_INT_TO_FIXED
GLfixed rect_verts[] = {
FIX(x), FIX(y),
FIX(x + width), FIX(y),
FIX(x), FIX(y + height),
FIX(x + width), FIX(y + height),
};
#undef FIX
GE( glVertexPointer(2, GL_FIXED, 0, rect_verts) );
GE( glEnableClientState(GL_VERTEX_ARRAY) );
GE( glDrawArrays(GL_TRIANGLE_STRIP, 0, 4) );
GE( glDisableClientState(GL_VERTEX_ARRAY) );
}
/* FIXME: Should use ClutterReal or Fixed */
void
cogl_trapezoid (gint y1,
gint x11,
gint x21,
gint y2,
gint x12,
gint x22)
{
/* FIXME */
}
void
cogl_alpha_func (COGLenum func,
ClutterFixed ref)
{
GE( glAlphaFunc (func, CLUTTER_FIXED_TO_FLOAT(ref)) );
}
/*
* Fixed point implementation of the perspective function
*/
void
cogl_perspective (ClutterAngle fovy,
ClutterFixed aspect,
ClutterFixed zNear,
ClutterFixed zFar)
{
ClutterFixed xmax, ymax;
ClutterFixed x, y, c, d;
GLfixed m[16];
memset (&m[0], 0, sizeof (m));
/*
* Based on the original algorithm in perspective():
*
* 1) xmin = -xmax => xmax + xmin == 0 && xmax - xmin == 2 * xmax
* same true for y, hence: a == 0 && b == 0;
*
* 2) When working with small numbers, we can are loosing significant
* precision, hence we use clutter_qmulx() here, not the fast macro.
*/
ymax = clutter_qmulx (zNear, clutter_tani (fovy >> 1));
xmax = clutter_qmulx (ymax, aspect);
x = CFX_DIV (zNear, xmax);
y = CFX_DIV (zNear, ymax);
c = CFX_DIV (-(zFar + zNear), ( zFar - zNear));
d = CFX_DIV (-(clutter_qmulx (2*zFar, zNear)), (zFar - zNear));
#define M(row,col) m[col*4+row]
M(0,0) = x;
M(1,1) = y;
M(2,2) = c;
M(2,3) = d;
M(3,2) = 1 + ~CFX_ONE;
GE( glMultMatrixx (m) );
#undef M
}
void
cogl_setup_viewport (guint width,
guint height,
ClutterAngle fovy,
ClutterFixed aspect,
ClutterFixed z_near,
ClutterFixed z_far)
{
GE( glViewport (0, 0, width, height) );
GE( glMatrixMode (GL_PROJECTION) );
GE( glLoadIdentity () );
cogl_perspective (fovy, aspect, z_near, z_far);
GE( glMatrixMode (GL_MODELVIEW) );
GE( glLoadIdentity () );
/* camera distance from screen, 0.5 * tan (FOV) */
#define DEFAULT_Z_CAMERA 0.866025404f
GE( glTranslatex (-CFX_HALF,
-CFX_HALF,
-CLUTTER_FLOAT_TO_FIXED(DEFAULT_Z_CAMERA)) );
GE( glScalex ( CFX_DIV(CFX_ONE, CLUTTER_INT_TO_FIXED(width)),
-CFX_DIV(CFX_ONE, CLUTTER_INT_TO_FIXED(height)),
CFX_DIV(CFX_ONE, CLUTTER_INT_TO_FIXED(width))) );
GE( glTranslatex (0, -CFX_DIV(CFX_ONE, CLUTTER_INT_TO_FIXED(height)), 0) );
}

31
clutter/egl/clutter-backend-egl.c
View File

@ -59,6 +59,8 @@ clutter_backend_egl_post_parse (ClutterBackend *backend,
if (backend_egl->xdpy)
{
EGLBoolean status;
CLUTTER_NOTE (MISC, "Getting the X screen");
if (clutter_screen == 0)
@ -73,23 +75,41 @@ clutter_backend_egl_post_parse (ClutterBackend *backend,
backend_egl->display_name = g_strdup (clutter_display_name);
backend_egl->edpy = eglGetDisplay(backend_egl->xdpy);
status = eglInitialize(backend_egl->edpy,
&backend_egl->egl_version_major,
&backend_egl->egl_version_minor);
if (status != EGL_TRUE)
{
g_set_error (error, CLUTTER_INIT_ERROR,
CLUTTER_INIT_ERROR_BACKEND,
"Unable to Initialize EGL");
return FALSE;
}
/* generic backend properties */
backend->res_width = WidthOfScreen (backend_egl->xscreen);
backend->res_height = HeightOfScreen (backend_egl->xscreen);
backend->mm_width = WidthMMOfScreen (backend_egl->xscreen);
backend->mm_height = HeightMMOfScreen (backend_egl->xscreen);
backend->screen_num = backend_egl->xscreen_num;
backend->n_screens = ScreenCount (backend_egl->xdpy)
backend->n_screens = ScreenCount (backend_egl->xdpy);
}
g_free (clutter_display_name);
CLUTTER_NOTE (MISC, "X Display `%s' [%p] opened (screen:%d, root:%u)",
CLUTTER_NOTE (BACKEND, "X Display `%s' [%p] opened (screen:%d, root:%u)",
backend_egl->display_name,
backend_egl->xdpy,
backend_egl->xscreen_num,
(unsigned int) backend_egl->xwin_root);
CLUTTER_NOTE (BACKEND, "EGL Reports version %i.%i",
backend_egl->egl_version_major,
backend_egl->egl_version_minor);
return TRUE;
}
@ -164,7 +184,9 @@ clutter_backend_egl_add_options (ClutterBackend *backend,
static ClutterActor *
clutter_backend_egl_get_stage (ClutterBackend *backend)
{
return NULL;
ClutterBackendEgl *backend_egl = CLUTTER_BACKEND_EGL (backend);
return backend_egl->stage;
}
static void
@ -245,6 +267,7 @@ static void
clutter_backend_egl_init (ClutterBackendEgl *backend_egl)
{
ClutterBackend *backend = CLUTTER_BACKEND (backend_egl);
backend->events_queue = g_queue_new ();
backend->button_click_time[0] = backend->button_click_time[1] = 0;
@ -258,7 +281,7 @@ clutter_backend_egl_init (ClutterBackendEgl *backend_egl)
backend->n_screens = 0;
backend->double_click_time = 250;
backend->double_click_distance = 5
backend->double_click_distance = 5;
}
GType

7
clutter/egl/clutter-backend-egl.h
View File

@ -27,6 +27,9 @@
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include <GLES/gl.h>
#include <GLES/egl.h>
G_BEGIN_DECLS
#define CLUTTER_TYPE_BACKEND_EGL (clutter_backend_egl_get_type ())
@ -49,6 +52,10 @@ struct _ClutterBackendEgl
int xscreen_num;
Screen *xscreen;
/* EGL Specific */
EGLDisplay edpy;
gint egl_version_major, egl_version_minor;
/* main stage singleton */
ClutterActor *stage;

24
clutter/egl/clutter-stage-egl.c
View File

@ -91,7 +91,7 @@ clutter_stage_egl_realize (ClutterActor *actor)
gboolean is_offscreen;
CLUTTER_NOTE (MISC, "Realizing main stage");
CLUTTER_NOTE (BACKEND, "Realizing main stage");
g_object_get (actor, "offscreen", &is_offscreen, NULL);
@ -117,8 +117,12 @@ clutter_stage_egl_realize (ClutterActor *actor)
sizeof configs / sizeof configs[0],
&config_count);
if (status != EGL_TRUE)
g_warning ("eglChooseConfig");
if (stage_egl->xwin == None)
stage_egl->xwin = XCreateSimpleWindow(clutter_egl_get_default_display(),
stage_egl->xwin
= XCreateSimpleWindow(clutter_egl_get_default_display(),
clutter_egl_get_default_root_window(),
0, 0,
stage_egl->xwin_width,
@ -126,6 +130,7 @@ clutter_stage_egl_realize (ClutterActor *actor)
0, 0,
WhitePixel(clutter_egl_get_default_display(),
clutter_egl_get_default_screen()));
XSelectInput(clutter_egl_get_default_display(),
stage_egl->xwin,
StructureNotifyMask
@ -149,6 +154,7 @@ clutter_stage_egl_realize (ClutterActor *actor)
configs[0],
(NativeWindowType)stage_egl->xwin,
NULL);
if (stage_egl->egl_surface == EGL_NO_SURFACE)
g_warning ("eglCreateWindowSurface");
@ -168,6 +174,7 @@ clutter_stage_egl_realize (ClutterActor *actor)
if (status != EGL_TRUE)
g_warning ("eglMakeCurrent");
}
else
{
@ -196,15 +203,7 @@ clutter_stage_egl_paint (ClutterActor *self)
clutter_stage_get_color (stage, &stage_color);
/* FIXME: move below into cogl_paint_start() ? */
glClearColorx ((stage_color.red << 16) / 0xff,
(stage_color.green << 16) / 0xff,
(stage_color.blue << 16) / 0xff,
0xff);
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
glDisable (GL_LIGHTING);
glDisable (GL_DEPTH_TEST);
cogl_paint_init (&stage_color);
/* Basically call up to ClutterGroup paint here */
CLUTTER_ACTOR_CLASS (clutter_stage_egl_parent_class)->paint (self);
@ -215,8 +214,7 @@ clutter_stage_egl_paint (ClutterActor *self)
if (stage_egl->xwin)
{
clutter_feature_wait_for_vblank ();
eglSwapBuffers ((EGLDisplay)stage_egl->xdpy,
(EGLSurface)stage_egl->xwin);
eglSwapBuffers ((EGLDisplay)stage_egl->xdpy, stage_egl->egl_surface);
}
else
{

4
clutter/pango/pangoclutter-render.c
View File

@ -339,8 +339,10 @@ draw_glyph (PangoRenderer *renderer_,
_pango_clutter_font_set_cache_glyph_data (font, glyph, g);
}
/*
if (renderer->curtex)
glEnd ();
*/
tc_get (&g->tex, bm.width, bm.height);
@ -364,7 +366,7 @@ draw_glyph (PangoRenderer *renderer_,
bm.bitmap);
renderer->curtex = g->tex.name;
glBegin (GL_QUADS);
/* glBegin (GL_QUADS); */
}
else CLUTTER_NOTE (PANGO, g_message ("cache succsess %i\n", glyph));

2
configure.ac
View File

@ -130,7 +130,7 @@ case $clutterbackend in
AC_DEFINE([HAVE_CLUTTER_EGL], 1, [Have the EGL backend])
# We currently assume having egl means also having gles..
CLUTTER_GOGL="gles"
CLUTTER_COGL="gles"
AC_DEFINE([HAVE_COGL_GLES], 1, [Have GL/ES for rendering])
PKG_CHECK_MODULES(EGL, libvincent, HAVE_OGLES=yes, HAVE_OGLES=no)