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https://github.com/brl/mutter.git
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2007-05-02 Matthew Allum <mallum@openedhand.com>
* clutter/clutter-actor.c:
* clutter/cogl/gles/cogl.c:
Fix rotation + other fixed point cleanups.
* clutter/clutter-texture.h:
Sketch out an updated API.
This commit is contained in:
Matthew Allum
parent
78bf6ccb88
commit
2845bb5b74
@ -1,3 +1,12 @@
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2007-05-02 Matthew Allum <mallum@openedhand.com>
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* clutter/clutter-actor.c:
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* clutter/cogl/gles/cogl.c:
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Fix rotation + other fixed point cleanups.
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* clutter/clutter-texture.h:
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Sketch out an updated API.
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2007-05-01 Matthew Allum <mallum@openedhand.com>
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* clutter/clutter-rectangle.c:
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@ -299,6 +299,8 @@ clutter_actor_paint (ClutterActor *self)
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cogl_push_matrix();
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#define NEG(x) (1 + ~(x))
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#if CLUTTER_COGL_GL
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glLoadName (clutter_actor_get_id (self));
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#endif
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@ -312,45 +314,27 @@ clutter_actor_paint (ClutterActor *self)
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if (self->priv->rzang)
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{
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cogl_translatex (priv->rzx,
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priv->rzy,
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0);
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cogl_translate (priv->rzx, priv->rzy, 0);
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cogl_rotatex (priv->rzang, 0, 0, CFX_ONE);
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cogl_translatex (-1. * priv->rzx,
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-1. * priv->rzy,
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0);
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cogl_translate (-priv->rzx, -priv->rzy, 0);
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}
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if (self->priv->ryang)
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{
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cogl_translatex (priv->ryx,
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0,
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CLUTTER_INT_TO_FIXED (priv->z) + priv->ryz);
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cogl_translate (priv->ryx, 0, priv->z + priv->ryz);
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cogl_rotatex (priv->ryang, 0, CFX_ONE, 0);
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cogl_translatex (- priv->ryx,
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0.0,
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CLUTTER_INT_TO_FIXED(-priv->z) - priv->ryz);
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cogl_translate (-priv->ryx, 0, -(priv->z + priv->ryz));
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}
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if (self->priv->rxang)
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{
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cogl_translatex (0,
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priv->rxy,
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CLUTTER_INT_TO_FIXED(priv->z) + priv->rxz);
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cogl_translate (0, priv->rxy, priv->z + priv->rxz);
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cogl_rotatex (priv->rxang, CFX_ONE, 0, CFX_ONE);
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cogl_translatex (0,
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- priv->rxy,
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CLUTTER_INT_TO_FIXED(-priv->z) - priv->rxz);
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cogl_translate (0, -priv->rxy, -(priv->z - priv->rxz));
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}
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if (self->priv->z)
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glTranslatef (0.0, 0.0, (float) priv->z);
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cogl_translate (0, 0, priv->z);
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if (self->priv->scale_x != CFX_ONE ||
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self->priv->scale_y != CFX_ONE)
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@ -31,12 +31,39 @@
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G_BEGIN_DECLS
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#define CLUTTER_TEXTURE_FORMAT_RGB 1
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#define CLUTTER_TEXTURE_FORMAT_RGBA 2
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#define CLUTTER_TEXTURE_FORMAT_BGR 3
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#define CLUTTER_TEXTURE_FORMAT_BGRA 4
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#define CLUTTER_TEXTURE_FORMAT_YUV 5
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#define CLUTTER_TEXTURE_FORMAT_YUV2 6
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#if 0
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/* New API Ideas */
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#define CLUTTER_TEXTURE_RGB_FLAG_BRGA (1<<1)
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#define CLUTTER_TEXTURE_RGB_FLAG_PREMULT (1<<2)
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gboolean
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clutter_texture_set_from_rgb_data (ClutterTexture *texture,
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const guchar *data,
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gboolean has_alpha,
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gint width,
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gint height,
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gint rowstride,
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gint bpp,
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gint flags,
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GError *error);
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gboolean
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clutter_texture_set_from_yuv_data (ClutterTexture *texture,
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const guchar *data,
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gint width,
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gint height,
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gint flags,
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GError *error);
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Notes
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=====
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- drop format and type props - would be set in GL texture automagically
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via about calls.
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#endif
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#define CLUTTER_TYPE_TEXTURE (clutter_texture_get_type ())
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#define CLUTTER_TEXTURE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_TEXTURE, ClutterTexture))
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@ -37,7 +37,7 @@
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static gulong __enable_flags = 0;
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#define COGL_DEBUG 1
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#define COGL_DEBUG 0
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#if COGL_DEBUG
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struct token_string
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@ -250,6 +250,7 @@ cogl_texture_can_size (COGLenum pixel_format,
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{
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GLint new_width = 0;
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/* FIXME */
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return TRUE;
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@ -478,52 +479,6 @@ cogl_perspective (ClutterAngle fovy,
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#undef M
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}
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#if 0
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void
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cogl_perspective (ClutterAngle fovy,
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ClutterFixed aspect,
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ClutterFixed zNear,
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ClutterFixed zFar)
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{
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ClutterFixed xmax, ymax;
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ClutterFixed x, y, c, d;
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GLfloat m[16];
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memset (&m[0], 0, sizeof (m));
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/*
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* Based on the original algorithm in perspective():
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*
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* 1) xmin = -xmax => xmax + xmin == 0 && xmax - xmin == 2 * xmax
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* same true for y, hence: a == 0 && b == 0;
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*
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* 2) When working with small numbers, we can are loosing significant
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* precision, hence we use clutter_qmulx() here, not the fast macro.
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*/
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ymax = clutter_qmulx (zNear, clutter_tani (fovy >> 1));
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xmax = clutter_qmulx (ymax, aspect);
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x = CFX_DIV (zNear, xmax);
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y = CFX_DIV (zNear, ymax);
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c = CFX_DIV (-(zFar + zNear), ( zFar - zNear));
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d = CFX_DIV (-(clutter_qmulx (2*zFar, zNear)), (zFar - zNear));
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#define M(row,col) m[col*4+row]
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M(0,0) = CLUTTER_FIXED_TO_FLOAT (x);
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M(1,1) = CLUTTER_FIXED_TO_FLOAT (y);
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M(2,2) = CLUTTER_FIXED_TO_FLOAT (c);
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M(2,3) = CLUTTER_FIXED_TO_FLOAT (d);
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M(3,2) = -1.0F;
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GE( glMultMatrixf (m) );
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#undef M
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}
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#endif
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void
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cogl_setup_viewport (guint w,
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guint h,
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@ -536,18 +491,11 @@ cogl_setup_viewport (guint w,
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gint height = (gint) h;
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GE( glViewport (0, 0, width, height) );
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#define NEG(x) (1 + ~(x))
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GE( glMatrixMode (GL_PROJECTION) );
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GE( glLoadIdentity () );
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/*
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glOrthox (0,
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width << 16,
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0,
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height << 16,
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-1 << 16, 1 << 16);
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/* For Ortho projection.
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* glOrthox (0, width << 16, 0, height << 16, -1 << 16, 1 << 16);
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*/
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cogl_perspective (fovy, aspect, z_near, z_far);
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@ -558,50 +506,14 @@ cogl_setup_viewport (guint w,
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/* camera distance from screen, 0.5 * tan (FOV) */
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#define DEFAULT_Z_CAMERA 0.866025404f
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GE( glTranslatex (-1 << 15,
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-1 << 15,
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NEG(CLUTTER_FLOAT_TO_FIXED(DEFAULT_Z_CAMERA))) );
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-CLUTTER_FLOAT_TO_FIXED(DEFAULT_Z_CAMERA)) );
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g_debug ("TX1: %f/%f %f/%f %f/%f",
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CLUTTER_FIXED_TO_DOUBLE (-1 << 15), -0.5,
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CLUTTER_FIXED_TO_DOUBLE (-1 << 15), -0.5,
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CLUTTER_FIXED_TO_DOUBLE (NEG(CLUTTER_FLOAT_TO_FIXED(DEFAULT_Z_CAMERA))),
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-DEFAULT_Z_CAMERA);
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GE( glScalex ( CFX_ONE / width,
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NEG(CFX_ONE) / height,
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-CFX_ONE / height,
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CFX_ONE / width));
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g_debug ("SX: %f/%f %f/%f, w %d, h %d",
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CLUTTER_FIXED_TO_DOUBLE (CFX_ONE / width), 1.0f / width,
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CLUTTER_FIXED_TO_DOUBLE (NEG(CFX_ONE) / height), -1.0f / height,
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width, height);
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GE( glTranslatex (0, NEG(CFX_ONE) * height, 0) );
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g_debug ("TX2: %f/%f",
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CLUTTER_FIXED_TO_DOUBLE (NEG(CFX_ONE) * height),
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-1.0 * height);
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#if 0
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GE( glTranslatex (NEG(CFX_HALF),
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NEG(CFX_HALF),
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NEG(CLUTTER_FLOAT_TO_FIXED(DEFAULT_Z_CAMERA))) );
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GE( glScalex ( CFX_DIV(CFX_ONE, CLUTTER_INT_TO_FIXED(width)),
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NEG(CFX_DIV(CFX_ONE, CLUTTER_INT_TO_FIXED(height))),
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CFX_DIV(CFX_ONE, CLUTTER_INT_TO_FIXED(width))) );
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GE( glTranslatex (0, NEG(CFX_MUL(CFX_ONE, CLUTTER_INT_TO_FIXED(height))), 0) );
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#endif
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#if 0
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GE( glTranslatef (-0.5f, -0.5f, -DEFAULT_Z_CAMERA) );
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GE( glScalef ( 1.0f / width,
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-1.0f / height,
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1.0f / width) );
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GE( glTranslatef (0.0f, -1.0 * height, 0.0f) );
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#endif
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GE( glTranslatex (0, -CFX_ONE * height, 0) );
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}
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