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d83442476f
* clutter/cogl/cogl.h:
* clutter/cogl/gl/cogl.c:
* clutter/cogl/gles/cogl.c:
Disable the depth test and buffer as has some strange side
effects, mainly on x/y axis rotation with multiple layers at
same depth (eg rotating text on a bg has very strange
effect). Seems no clean 100% effective way to fix without other
odd issues.. So for now move to application to handle and add
cogl_enable_depth_test() as for custom actors (i.e groups) to
enable if need be.
291 lines
6.4 KiB
C
291 lines
6.4 KiB
C
/*
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* Clutter COGL
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*
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* A basic GL/GLES Abstraction/Utility Layer
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*
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* Authored By Matthew Allum <mallum@openedhand.com>
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*
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* Copyright (C) 2007 OpenedHand
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* COGL
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* ====
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*
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* 'cogl' is a very simple abstraction layer which wraps GL and GLES.
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*
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*
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* !!!! DO NOT USE THIS API YET OUTSIDE OF CLUTTER CORE !!!!
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* THE API WILL FLUCTUATE WILDLY
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*
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* TODO:
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* - Use ClutterReal for fixed/float params.
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* - Add Perspective/viewport setup
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* - Add Features..
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*/
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#ifndef __COGL_H__
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#define __COGL_H__
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#include <glib.h>
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#include <clutter/clutter-color.h>
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#include <clutter/clutter-feature.h>
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#include <clutter/clutter-fixed.h>
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#include <clutter/clutter-types.h>
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#include "cogl-defines.h"
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G_BEGIN_DECLS
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#define CGL_ENABLE_BLEND (1<<1)
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#define CGL_ENABLE_TEXTURE_2D (1<<2)
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#define CGL_ENABLE_ALPHA_TEST (1<<3)
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#define CGL_ENABLE_TEXTURE_RECT (1<<4)
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typedef void (*CoglFuncPtr) (void);
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CoglFuncPtr
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cogl_get_proc_address (const gchar* name);
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gboolean
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cogl_check_extension (const gchar *name, const gchar *ext);
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void
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cogl_perspective (ClutterFixed fovy,
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ClutterFixed aspect,
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ClutterFixed zNear,
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ClutterFixed zFar);
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void
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cogl_setup_viewport (guint width,
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guint height,
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ClutterFixed fovy,
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ClutterFixed aspect,
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ClutterFixed z_near,
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ClutterFixed z_far);
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void
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cogl_paint_init (const ClutterColor *color);
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void
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cogl_push_matrix (void);
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void
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cogl_pop_matrix (void);
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void
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cogl_scale (ClutterFixed x, ClutterFixed z);
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void
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cogl_translatex (ClutterFixed x, ClutterFixed y, ClutterFixed z);
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void
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cogl_translate (gint x, gint y, gint z);
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void
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cogl_rotatex (ClutterFixed angle, gint x, gint y, gint z);
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void
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cogl_rotate (gint angle, gint x, gint y, gint z);
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void
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cogl_color (const ClutterColor *color);
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void
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cogl_clip_set (ClutterFixed x_offset,
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ClutterFixed y_offset,
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ClutterFixed width,
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ClutterFixed height);
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void
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cogl_clip_unset (void);
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void
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cogl_enable (gulong flags);
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void
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cogl_enable_depth_test (gboolean setting);
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gboolean
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cogl_texture_can_size (COGLenum target,
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COGLenum pixel_format,
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COGLenum pixel_type,
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int width,
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int height);
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void
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cogl_texture_quad (gint x1,
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gint x2,
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gint y1,
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gint y2,
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ClutterFixed tx1,
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ClutterFixed ty1,
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ClutterFixed tx2,
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ClutterFixed ty2);
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void
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cogl_textures_create (guint num, COGLuint *textures);
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void
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cogl_textures_destroy (guint num, const COGLuint *textures);
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void
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cogl_texture_bind (COGLenum target, COGLuint texture);
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void
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cogl_texture_set_alignment (COGLenum target,
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guint alignment,
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guint row_length);
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void
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cogl_texture_set_filters (COGLenum target,
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COGLenum min_filter,
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COGLenum max_filter);
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void
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cogl_texture_set_wrap (COGLenum target,
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COGLenum wrap_s,
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COGLenum wrap_t);
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void
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cogl_texture_image_2d (COGLenum target,
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COGLint internal_format,
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gint width,
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gint height,
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COGLenum format,
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COGLenum type,
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const guchar* pixels);
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void
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cogl_texture_sub_image_2d (COGLenum target,
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gint xoff,
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gint yoff,
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gint width,
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gint height,
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COGLenum format,
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COGLenum type,
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const guchar* pixels);
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void
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cogl_rectangle (gint x, gint y, guint width, guint height);
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void
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cogl_trapezoid (gint y1,
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gint x11,
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gint x21,
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gint y2,
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gint x12,
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gint x22);
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void
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cogl_alpha_func (COGLenum func,
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ClutterFixed ref);
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ClutterFeatureFlags
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cogl_get_features ();
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void
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cogl_get_modelview_matrix (ClutterFixed m[16]);
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void
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cogl_get_projection_matrix (ClutterFixed m[16]);
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void
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cogl_get_viewport (ClutterFixed v[4]);
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void
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cogl_get_bitmasks (gint *red, gint *green, gint *blue, gint *alpha);
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void
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cogl_fog_set (const ClutterColor *fog_color,
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ClutterFixed density,
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ClutterFixed z_near,
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ClutterFixed z_far);
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COGLhandle
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cogl_create_shader (COGLenum shaderType);
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void
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cogl_shader_destroy (COGLhandle handle);
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void
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cogl_shader_source (COGLhandle shader,
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const gchar *source);
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void
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cogl_shader_compile (COGLhandle shader_handle);
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void
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cogl_shader_get_info_log (COGLhandle handle,
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guint size,
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gchar *buffer);
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void
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cogl_shader_get_parameteriv (COGLhandle handle,
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COGLenum pname,
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COGLint *dest);
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COGLhandle
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cogl_create_program (void);
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void
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cogl_program_destroy (COGLhandle handle);
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void
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cogl_program_attach_shader (COGLhandle program_handle,
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COGLhandle shader_handle);
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/* 0 to use none */
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void
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cogl_program_link (COGLhandle program_handle);
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void
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cogl_program_use (COGLhandle program_handle);
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COGLint
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cogl_program_get_uniform_location (COGLhandle program_int,
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const gchar *uniform_name);
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void
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cogl_program_uniform_1f (COGLint uniform_no,
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gfloat value);
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/* Offscreen - FBO support */
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COGLuint
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cogl_offscreen_create (COGLuint target_texture);
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void
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cogl_offscreen_destroy (COGLuint offscreen_handle);
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void
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cogl_offscreen_redirect_start (COGLuint offscreen_handle,
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gint width,
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gint height);
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void
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cogl_offscreen_redirect_end (COGLuint offscreen_handle,
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gint width,
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gint height);
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G_END_DECLS
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#endif /* __COGL_H__ */
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