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2007-04-27 Matthew Allum <mallum@openedhand.com>

Browse Source 
* clutter/Makefile.am:
        * clutter/clutter-actor.c:
        * clutter/clutter-clone-texture.c:
        * clutter/clutter-rectangle.c:
        * clutter/clutter-stage.c:
        * clutter/clutter-texture.c:
        * clutter/cogl/cogl.h:
        * clutter/cogl/gl/Makefile.am:
        * clutter/cogl/gl/cogl-defines.h:
        * clutter/cogl/gl/cogl.c:
        * clutter/cogl/gles/Makefile.am:
        * clutter/cogl/gles/cogl-defines.h:
        * clutter/cogl/gles/cogl.c:
        * clutter/glx/Makefile.am:
        * clutter/glx/clutter-stage-glx.c:
        * clutter/pango/Makefile.am:
        * clutter/pango/pangoclutter-render.c:
        * configure.ac:
        Add initial 'cogl' implementation. 'cogl' is a simple abstration
        layer over GL and GL/ES used by clutter internally. It should
        eventually allow clutter applications to be run on both GL and GL/ES
        with just a recompile as well as provide more debugging and potentially
        profiling information for GL and GL/ES usage.

        This commit contains the initial GL implementation.
This commit is contained in:
Matthew Allum 2007-04-27 21:13:06 +00:00
parent 40cd5aac01
commit 90d634feeb
7 changed files with 1725 additions and 41 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

133
cogl.h
View File

@ -23,14 +23,37 @@
* Boston, MA 02111-1307, USA.
*/
/*
* COGL
* ====
*
* 'cogl' is a very simple abstraction layer which wraps GL and GLES.
*
*
* !!!! DO NOT USE THIS API YET OUTSIDE OF CLUTTER CORE !!!!
* THE API WILL FLUCTUATE WILDLY
*
* TODO:
* - Use ClutterReal for fixed/float params.
* - Add Perspective/viewport setup
* - Add Features..
*/
#ifndef __COGL_H__
#define __COGL_H__
#include <glib.h>
#include <clutter/clutter.h>
#include "cogl-defines.h"
G_BEGIN_DECLS
#define CGL_ENABLE_BLEND (1<<1)
#define CGL_ENABLE_TEXTURE_2D (1<<2)
#define CGL_ENABLE_ALPHA_TEST (1<<3)
#define CGL_ENABLE_TEXTURE_RECT (1<<4)
typedef void (*CoglFuncPtr) (void);
CoglFuncPtr
@ -39,6 +62,20 @@ cogl_get_proc_address (const gchar* name);
gboolean
cogl_check_extension (const gchar *name, const gchar *ext);
void
cogl_perspective (ClutterAngle fovy,
ClutterFixed aspect,
ClutterFixed zNear,
ClutterFixed zFar);
void
cogl_setup_viewport (guint width,
guint height,
ClutterAngle fovy,
ClutterFixed aspect,
ClutterFixed z_near,
ClutterFixed z_far);
void
cogl_paint_init (ClutterColor *color);
@ -49,7 +86,7 @@ void
cogl_pop_matrix (void);
void
cogl_scaled (ClutterFixed x, ClutterFixed z);
cogl_scale (ClutterFixed x, ClutterFixed z);
void
cogl_translatex (ClutterFixed x, ClutterFixed y, ClutterFixed z);
@ -66,29 +103,81 @@ cogl_rotate (gint angle, gint x, gint y, gint z);
void
cogl_color (ClutterColor *color);
#if 0
void
cogl_enable (gulong flags);
../clutter/.libs/libclutter-egl-0.3.so: undefined reference to `glColor3f'
../clutter/.libs/libclutter-egl-0.3.so: undefined reference to `glColor4ub'
../clutter/.libs/libclutter-egl-0.3.so: undefined reference to `glGetTexLevelParameteriv'
../clutter/.libs/libclutter-egl-0.3.so: undefined reference to `glSelectBuffer'
../clutter/.libs/libclutter-egl-0.3.so: undefined reference to `glScaled'
../clutter/.libs/libclutter-egl-0.3.so: undefined reference to `glPushName'
../clutter/.libs/libclutter-egl-0.3.so: undefined reference to `glRecti'
../clutter/.libs/libclutter-egl-0.3.so: undefined reference to `glBegin'
../clutter/.libs/libclutter-egl-0.3.so: undefined reference to `glInitNames'
../clutter/.libs/libclutter-egl-0.3.so: undefined reference to `glVertex2i'
../clutter/.libs/libclutter-egl-0.3.so: undefined reference to `glGetTexImage'
../clutter/.libs/libclutter-egl-0.3.so: undefined reference to `glTexCoord2f'
../clutter/.libs/libclutter-egl-0.3.so: undefined reference to `glRenderMode'
../clutter/.libs/libclutter-egl-0.3.so: undefined reference to `glTranslated'
../clutter/.libs/libclutter-egl-0.3.so: undefined reference to `glRotated'
../clutter/.libs/libclutter-egl-0.3.so: undefined reference to `glLoadName'
../clutter/.libs/libclutter-egl-0.3.so: undefined reference to `glTexEnvi'
../clutter/.libs/libclutter-egl-0.3.so: undefined reference to `glVertex2d'
../clutter/.libs/libclutter-egl-0.3.so: undefined reference to `glEnd'
gboolean
cogl_texture_can_size (COGLenum pixel_format,
COGLenum pixel_type,
int width,
int height);
void
cogl_texture_quad (gint x1,
gint x2,
gint y1,
gint y2,
ClutterFixed tx1,
ClutterFixed ty1,
ClutterFixed tx2,
ClutterFixed ty2);
void
cogl_textures_create (guint num, guint *textures);
void
cogl_textures_destroy (guint num, const guint *textures);
void
cogl_texture_bind (COGLenum target, guint texture);
void
cogl_texture_set_alignment (COGLenum target,
guint alignment,
guint row_length);
void
cogl_texture_set_filters (COGLenum target,
COGLenum min_filter,
COGLenum max_filter);
void
cogl_texture_set_wrap (COGLenum target,
COGLenum wrap_s,
COGLenum wrap_t);
void
cogl_texture_image_2d (COGLenum target,
COGLint internal_format,
gint width,
gint height,
COGLenum format,
COGLenum type,
const guchar* pixels);
void
cogl_texture_sub_image_2d (COGLenum target,
gint xoff,
gint yoff,
gint width,
gint height,
COGLenum format,
COGLenum type,
const guchar* pixels);
void
cogl_rectangle (gint x, gint y, guint width, guint height);
void
cogl_trapezoid (gint y1,
gint x11,
gint x21,
gint y2,
gint x12,
gint x22);
void
cogl_alpha_func (COGLenum func,
ClutterFixed ref);
#endif
G_END_DECLS

8
gl/Makefile.am
View File

@ -1,5 +1,6 @@
libclutterincludedir = $(includedir)/clutter-@CLUTTER_API_VERSION@/clutter
libclutterinclude_HEADERS = $(top_srcdir)/clutter/cogl/cogl.h
libclutterinclude_HEADERS = $(top_srcdir)/clutter/cogl/cogl.h \
$(top_srcdir)/clutter/cogl/gl/cogl-defines.h
INCLUDES = \
-I$(top_srcdir) \
@ -12,6 +13,7 @@ LDADD = $(CLUTTER_LIBS)
noinst_LTLIBRARIES = libclutter-cogl.la
libclutter_cogl_la_SOURCES = \
$(top_srcdir)/clutter/cogl/cogl.h \
libclutter_cogl_la_SOURCES = \
$(top_srcdir)/clutter/cogl/cogl.h \
$(top_srcdir)/clutter/cogl/gl/cogl-defines.h \
cogl.c

677
gl/cogl-defines.h Normal file
View File

@ -0,0 +1,677 @@
/*
* Clutter COGL
*
* A basic GL/GLES Abstraction/Utility Layer
*
* Authored By Matthew Allum <mallum@openedhand.com>
*
* Copyright (C) 2007 OpenedHand
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __COGL_DEFINES_H__
#define __COGL_DEFINES_H__
#include <GL/gl.h>
G_BEGIN_DECLS
typedef GLenum COGLenum;
typedef GLint COGLint;
/* FIXME + DOCUMENT */
#define COPENSTEP OPENSTEP
#define CGLAPI GLAPI
#define CGLAPI GLAPI
#define CGLAPI GLAPI
#define CGLAPIENTRY GLAPIENTRY
#define CGLAPI GLAPI
#define CGLAPIENTRY GLAPIENTRY
#define CGLAPI GLAPI
#define CGLAPIENTRY GLAPIENTRY
#define CPRAGMA_EXPORT_SUPPORTED PRAGMA_EXPORT_SUPPORTED
#define CGLAPI GLAPI
#define CGLAPIENTRY GLAPIENTRY
#define CAPIENTRY APIENTRY
#define CAPIENTRYP APIENTRYP
#define CGLAPIENTRYP GLAPIENTRYP
#define CGL_FALSE GL_FALSE
#define CGL_TRUE GL_TRUE
#define CGL_BYTE GL_BYTE
#define CGL_UNSIGNED_BYTE GL_UNSIGNED_BYTE
#define CGL_SHORT GL_SHORT
#define CGL_UNSIGNED_SHORT GL_UNSIGNED_SHORT
#define CGL_INT GL_INT
#define CGL_UNSIGNED_INT GL_UNSIGNED_INT
#define CGL_FLOAT GL_FLOAT
#define CGL_DOUBLE GL_DOUBLE
#define CGL_POINTS GL_POINTS
#define CGL_LINES GL_LINES
#define CGL_LINE_LOOP GL_LINE_LOOP
#define CGL_LINE_STRIP GL_LINE_STRIP
#define CGL_TRIANGLES GL_TRIANGLES
#define CGL_TRIANGLE_STRIP GL_TRIANGLE_STRIP
#define CGL_TRIANGLE_FAN GL_TRIANGLE_FAN
#define CGL_QUADS GL_QUADS
#define CGL_QUAD_STRIP GL_QUAD_STRIP
#define CGL_POLYGON GL_POLYGON
#define CGL_VERTEX_ARRAY GL_VERTEX_ARRAY
#define CGL_NORMAL_ARRAY GL_NORMAL_ARRAY
#define CGL_COLOR_ARRAY GL_COLOR_ARRAY
#define CGL_INDEX_ARRAY GL_INDEX_ARRAY
#define CGL_TEXTURE_COORD_ARRAY GL_TEXTURE_COORD_ARRAY
#define CGL_EDGE_FLAG_ARRAY GL_EDGE_FLAG_ARRAY
#define CGL_VERTEX_ARRAY_SIZE GL_VERTEX_ARRAY_SIZE
#define CGL_VERTEX_ARRAY_TYPE GL_VERTEX_ARRAY_TYPE
#define CGL_VERTEX_ARRAY_STRIDE GL_VERTEX_ARRAY_STRIDE
#define CGL_NORMAL_ARRAY_TYPE GL_NORMAL_ARRAY_TYPE
#define CGL_NORMAL_ARRAY_STRIDE GL_NORMAL_ARRAY_STRIDE
#define CGL_COLOR_ARRAY_SIZE GL_COLOR_ARRAY_SIZE
#define CGL_COLOR_ARRAY_TYPE GL_COLOR_ARRAY_TYPE
#define CGL_COLOR_ARRAY_STRIDE GL_COLOR_ARRAY_STRIDE
#define CGL_INDEX_ARRAY_TYPE GL_INDEX_ARRAY_TYPE
#define CGL_INDEX_ARRAY_STRIDE GL_INDEX_ARRAY_STRIDE
#define CGL_TEXTURE_COORD_ARRAY_SIZE GL_TEXTURE_COORD_ARRAY_SIZE
#define CGL_TEXTURE_COORD_ARRAY_TYPE GL_TEXTURE_COORD_ARRAY_TYPE
#define CGL_TEXTURE_COORD_ARRAY_STRIDE GL_TEXTURE_COORD_ARRAY_STRIDE
#define CGL_EDGE_FLAG_ARRAY_STRIDE GL_EDGE_FLAG_ARRAY_STRIDE
#define CGL_VERTEX_ARRAY_POINTER GL_VERTEX_ARRAY_POINTER
#define CGL_NORMAL_ARRAY_POINTER GL_NORMAL_ARRAY_POINTER
#define CGL_COLOR_ARRAY_POINTER GL_COLOR_ARRAY_POINTER
#define CGL_INDEX_ARRAY_POINTER GL_INDEX_ARRAY_POINTER
#define CGL_TEXTURE_COORD_ARRAY_POINTER GL_TEXTURE_COORD_ARRAY_POINTER
#define CGL_EDGE_FLAG_ARRAY_POINTER GL_EDGE_FLAG_ARRAY_POINTER
#define CGL_MATRIX_MODE GL_MATRIX_MODE
#define CGL_MODELVIEW GL_MODELVIEW
#define CGL_PROJECTION GL_PROJECTION
#define CGL_TEXTURE GL_TEXTURE
#define CGL_POINT_SMOOTH GL_POINT_SMOOTH
#define CGL_POINT_SIZE GL_POINT_SIZE
#define CGL_POINT_SIZE_GRANULARITY GL_POINT_SIZE_GRANULARITY
#define CGL_POINT_SIZE_RANGE GL_POINT_SIZE_RANGE
#define CGL_LINE_SMOOTH GL_LINE_SMOOTH
#define CGL_LINE_STIPPLE GL_LINE_STIPPLE
#define CGL_LINE_STIPPLE_PATTERN GL_LINE_STIPPLE_PATTERN
#define CGL_LINE_STIPPLE_REPEAT GL_LINE_STIPPLE_REPEAT
#define CGL_LINE_WIDTH GL_LINE_WIDTH
#define CGL_LINE_WIDTH_GRANULARITY GL_LINE_WIDTH_GRANULARITY
#define CGL_LINE_WIDTH_RANGE GL_LINE_WIDTH_RANGE
#define CGL_POINT GL_POINT
#define CGL_LINE GL_LINE
#define CGL_FILL GL_FILL
#define CGL_CW GL_CW
#define CGL_CCW GL_CCW
#define CGL_FRONT GL_FRONT
#define CGL_BACK GL_BACK
#define CGL_POLYGON_MODE GL_POLYGON_MODE
#define CGL_POLYGON_SMOOTH GL_POLYGON_SMOOTH
#define CGL_POLYGON_STIPPLE GL_POLYGON_STIPPLE
#define CGL_EDGE_FLAG GL_EDGE_FLAG
#define CGL_CULL_FACE GL_CULL_FACE
#define CGL_CULL_FACE_MODE GL_CULL_FACE_MODE
#define CGL_FRONT_FACE GL_FRONT_FACE
#define CGL_POLYGON_OFFSET_FACTOR GL_POLYGON_OFFSET_FACTOR
#define CGL_POLYGON_OFFSET_UNITS GL_POLYGON_OFFSET_UNITS
#define CGL_POLYGON_OFFSET_POINT GL_POLYGON_OFFSET_POINT
#define CGL_POLYGON_OFFSET_LINE GL_POLYGON_OFFSET_LINE
#define CGL_POLYGON_OFFSET_FILL GL_POLYGON_OFFSET_FILL
#define CGL_COMPILE GL_COMPILE
#define CGL_COMPILE_AND_EXECUTE GL_COMPILE_AND_EXECUTE
#define CGL_LIST_BASE GL_LIST_BASE
#define CGL_LIST_INDEX GL_LIST_INDEX
#define CGL_LIST_MODE GL_LIST_MODE
#define CGL_NEVER GL_NEVER
#define CGL_LESS GL_LESS
#define CGL_EQUAL GL_EQUAL
#define CGL_LEQUAL GL_LEQUAL
#define CGL_GREATER GL_GREATER
#define CGL_NOTEQUAL GL_NOTEQUAL
#define CGL_GEQUAL GL_GEQUAL
#define CGL_ALWAYS GL_ALWAYS
#define CGL_DEPTH_TEST GL_DEPTH_TEST
#define CGL_DEPTH_BITS GL_DEPTH_BITS
#define CGL_DEPTH_CLEAR_VALUE GL_DEPTH_CLEAR_VALUE
#define CGL_DEPTH_FUNC GL_DEPTH_FUNC
#define CGL_DEPTH_RANGE GL_DEPTH_RANGE
#define CGL_DEPTH_WRITEMASK GL_DEPTH_WRITEMASK
#define CGL_DEPTH_COMPONENT GL_DEPTH_COMPONENT
#define CGL_LIGHTING GL_LIGHTING
#define CGL_SPOT_EXPONENT GL_SPOT_EXPONENT
#define CGL_SPOT_CUTOFF GL_SPOT_CUTOFF
#define CGL_CONSTANT_ATTENUATION GL_CONSTANT_ATTENUATION
#define CGL_LINEAR_ATTENUATION GL_LINEAR_ATTENUATION
#define CGL_QUADRATIC_ATTENUATION GL_QUADRATIC_ATTENUATION
#define CGL_AMBIENT GL_AMBIENT
#define CGL_DIFFUSE GL_DIFFUSE
#define CGL_SPECULAR GL_SPECULAR
#define CGL_SHININESS GL_SHININESS
#define CGL_EMISSION GL_EMISSION
#define CGL_POSITION GL_POSITION
#define CGL_SPOT_DIRECTION GL_SPOT_DIRECTION
#define CGL_AMBIENT_AND_DIFFUSE GL_AMBIENT_AND_DIFFUSE
#define CGL_COLOR_INDEXES GL_COLOR_INDEXES
#define CGL_LIGHT_MODEL_TWO_SIDE GL_LIGHT_MODEL_TWO_SIDE
#define CGL_LIGHT_MODEL_LOCAL_VIEWER GL_LIGHT_MODEL_LOCAL_VIEWER
#define CGL_LIGHT_MODEL_AMBIENT GL_LIGHT_MODEL_AMBIENT
#define CGL_FRONT_AND_BACK GL_FRONT_AND_BACK
#define CGL_SHADE_MODEL GL_SHADE_MODEL
#define CGL_FLAT GL_FLAT
#define CGL_SMOOTH GL_SMOOTH
#define CGL_COLOR_MATERIAL GL_COLOR_MATERIAL
#define CGL_COLOR_MATERIAL_FACE GL_COLOR_MATERIAL_FACE
#define CGL_COLOR_MATERIAL_PARAMETER GL_COLOR_MATERIAL_PARAMETER
#define CGL_NORMALIZE GL_NORMALIZE
#define CGL_ACCUM_RED_BITS GL_ACCUM_RED_BITS
#define CGL_ACCUM_GREEN_BITS GL_ACCUM_GREEN_BITS
#define CGL_ACCUM_BLUE_BITS GL_ACCUM_BLUE_BITS
#define CGL_ACCUM_ALPHA_BITS GL_ACCUM_ALPHA_BITS
#define CGL_ACCUM_CLEAR_VALUE GL_ACCUM_CLEAR_VALUE
#define CGL_ACCUM GL_ACCUM
#define CGL_ADD GL_ADD
#define CGL_LOAD GL_LOAD
#define CGL_MULT GL_MULT
#define CGL_RETURN GL_RETURN
#define CGL_ALPHA_TEST GL_ALPHA_TEST
#define CGL_ALPHA_TEST_REF GL_ALPHA_TEST_REF
#define CGL_ALPHA_TEST_FUNC GL_ALPHA_TEST_FUNC
#define CGL_BLEND GL_BLEND
#define CGL_BLEND_SRC GL_BLEND_SRC
#define CGL_BLEND_DST GL_BLEND_DST
#define CGL_ZERO GL_ZERO
#define CGL_ONE GL_ONE
#define CGL_SRC_COLOR GL_SRC_COLOR
#define CGL_ONE_MINUS_SRC_COLOR GL_ONE_MINUS_SRC_COLOR
#define CGL_SRC_ALPHA GL_SRC_ALPHA
#define CGL_ONE_MINUS_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
#define CGL_DST_ALPHA GL_DST_ALPHA
#define CGL_ONE_MINUS_DST_ALPHA GL_ONE_MINUS_DST_ALPHA
#define CGL_DST_COLOR GL_DST_COLOR
#define CGL_ONE_MINUS_DST_COLOR GL_ONE_MINUS_DST_COLOR
#define CGL_SRC_ALPHA_SATURATE GL_SRC_ALPHA_SATURATE
#define CGL_FEEDBACK GL_FEEDBACK
#define CGL_RENDER GL_RENDER
#define CGL_SELECT GL_SELECT
#define CGL_POINT_TOKEN GL_POINT_TOKEN
#define CGL_LINE_TOKEN GL_LINE_TOKEN
#define CGL_LINE_RESET_TOKEN GL_LINE_RESET_TOKEN
#define CGL_POLYGON_TOKEN GL_POLYGON_TOKEN
#define CGL_BITMAP_TOKEN GL_BITMAP_TOKEN
#define CGL_DRAW_PIXEL_TOKEN GL_DRAW_PIXEL_TOKEN
#define CGL_COPY_PIXEL_TOKEN GL_COPY_PIXEL_TOKEN
#define CGL_PASS_THROUGH_TOKEN GL_PASS_THROUGH_TOKEN
#define CGL_FEEDBACK_BUFFER_POINTER GL_FEEDBACK_BUFFER_POINTER
#define CGL_FEEDBACK_BUFFER_SIZE GL_FEEDBACK_BUFFER_SIZE
#define CGL_FEEDBACK_BUFFER_TYPE GL_FEEDBACK_BUFFER_TYPE
#define CGL_SELECTION_BUFFER_POINTER GL_SELECTION_BUFFER_POINTER
#define CGL_SELECTION_BUFFER_SIZE GL_SELECTION_BUFFER_SIZE
#define CGL_FOG GL_FOG
#define CGL_FOG_MODE GL_FOG_MODE
#define CGL_FOG_DENSITY GL_FOG_DENSITY
#define CGL_FOG_COLOR GL_FOG_COLOR
#define CGL_FOG_INDEX GL_FOG_INDEX
#define CGL_FOG_START GL_FOG_START
#define CGL_FOG_END GL_FOG_END
#define CGL_LINEAR GL_LINEAR
#define CGL_EXP GL_EXP
#define CGL_LOGIC_OP GL_LOGIC_OP
#define CGL_INDEX_LOGIC_OP GL_INDEX_LOGIC_OP
#define CGL_COLOR_LOGIC_OP GL_COLOR_LOGIC_OP
#define CGL_LOGIC_OP_MODE GL_LOGIC_OP_MODE
#define CGL_CLEAR GL_CLEAR
#define CGL_SET GL_SET
#define CGL_COPY GL_COPY
#define CGL_COPY_INVERTED GL_COPY_INVERTED
#define CGL_NOOP GL_NOOP
#define CGL_INVERT GL_INVERT
#define CGL_AND GL_AND
#define CGL_NAND GL_NAND
#define CGL_OR GL_OR
#define CGL_NOR GL_NOR
#define CGL_XOR GL_XOR
#define CGL_EQUIV GL_EQUIV
#define CGL_AND_REVERSE GL_AND_REVERSE
#define CGL_AND_INVERTED GL_AND_INVERTED
#define CGL_OR_REVERSE GL_OR_REVERSE
#define CGL_OR_INVERTED GL_OR_INVERTED
#define CGL_STENCIL_BITS GL_STENCIL_BITS
#define CGL_STENCIL_TEST GL_STENCIL_TEST
#define CGL_STENCIL_CLEAR_VALUE GL_STENCIL_CLEAR_VALUE
#define CGL_STENCIL_FUNC GL_STENCIL_FUNC
#define CGL_STENCIL_VALUE_MASK GL_STENCIL_VALUE_MASK
#define CGL_STENCIL_FAIL GL_STENCIL_FAIL
#define CGL_STENCIL_PASS_DEPTH_FAIL GL_STENCIL_PASS_DEPTH_FAIL
#define CGL_STENCIL_PASS_DEPTH_PASS GL_STENCIL_PASS_DEPTH_PASS
#define CGL_STENCIL_REF GL_STENCIL_REF
#define CGL_STENCIL_WRITEMASK GL_STENCIL_WRITEMASK
#define CGL_STENCIL_INDEX GL_STENCIL_INDEX
#define CGL_KEEP GL_KEEP
#define CGL_REPLACE GL_REPLACE
#define CGL_INCR GL_INCR
#define CGL_DECR GL_DECR
#define CGL_NONE GL_NONE
#define CGL_LEFT GL_LEFT
#define CGL_RIGHT GL_RIGHT
#define CGL_FRONT_LEFT GL_FRONT_LEFT
#define CGL_FRONT_RIGHT GL_FRONT_RIGHT
#define CGL_BACK_LEFT GL_BACK_LEFT
#define CGL_BACK_RIGHT GL_BACK_RIGHT
#define CGL_COLOR_INDEX GL_COLOR_INDEX
#define CGL_RED GL_RED
#define CGL_GREEN GL_GREEN
#define CGL_BLUE GL_BLUE
#define CGL_ALPHA GL_ALPHA
#define CGL_LUMINANCE GL_LUMINANCE
#define CGL_LUMINANCE_ALPHA GL_LUMINANCE_ALPHA
#define CGL_ALPHA_BITS GL_ALPHA_BITS
#define CGL_RED_BITS GL_RED_BITS
#define CGL_GREEN_BITS GL_GREEN_BITS
#define CGL_BLUE_BITS GL_BLUE_BITS
#define CGL_INDEX_BITS GL_INDEX_BITS
#define CGL_SUBPIXEL_BITS GL_SUBPIXEL_BITS
#define CGL_AUX_BUFFERS GL_AUX_BUFFERS
#define CGL_READ_BUFFER GL_READ_BUFFER
#define CGL_DRAW_BUFFER GL_DRAW_BUFFER
#define CGL_DOUBLEBUFFER GL_DOUBLEBUFFER
#define CGL_STEREO GL_STEREO
#define CGL_BITMAP GL_BITMAP
#define CGL_COLOR GL_COLOR
#define CGL_DEPTH GL_DEPTH
#define CGL_STENCIL GL_STENCIL
#define CGL_DITHER GL_DITHER
#define CGL_RGB GL_RGB
#define CGL_RGBA GL_RGBA
#define CGL_MAX_LIST_NESTING GL_MAX_LIST_NESTING
#define CGL_MAX_EVAL_ORDER GL_MAX_EVAL_ORDER
#define CGL_MAX_LIGHTS GL_MAX_LIGHTS
#define CGL_MAX_CLIP_PLANES GL_MAX_CLIP_PLANES
#define CGL_MAX_TEXTURE_SIZE GL_MAX_TEXTURE_SIZE
#define CGL_MAX_PIXEL_MAP_TABLE GL_MAX_PIXEL_MAP_TABLE
#define CGL_MAX_ATTRIB_STACK_DEPTH GL_MAX_ATTRIB_STACK_DEPTH
#define CGL_MAX_MODELVIEW_STACK_DEPTH GL_MAX_MODELVIEW_STACK_DEPTH
#define CGL_MAX_NAME_STACK_DEPTH GL_MAX_NAME_STACK_DEPTH
#define CGL_MAX_PROJECTION_STACK_DEPTH GL_MAX_PROJECTION_STACK_DEPTH
#define CGL_MAX_TEXTURE_STACK_DEPTH GL_MAX_TEXTURE_STACK_DEPTH
#define CGL_MAX_VIEWPORT_DIMS GL_MAX_VIEWPORT_DIMS
#define CGL_MAX_CLIENT_ATTRIB_STACK_DEPTH GL_MAX_CLIENT_ATTRIB_STACK_DEPTH
#define CGL_ATTRIB_STACK_DEPTH GL_ATTRIB_STACK_DEPTH
#define CGL_CLIENT_ATTRIB_STACK_DEPTH GL_CLIENT_ATTRIB_STACK_DEPTH
#define CGL_COLOR_CLEAR_VALUE GL_COLOR_CLEAR_VALUE
#define CGL_COLOR_WRITEMASK GL_COLOR_WRITEMASK
#define CGL_CURRENT_INDEX GL_CURRENT_INDEX
#define CGL_CURRENT_COLOR GL_CURRENT_COLOR
#define CGL_CURRENT_NORMAL GL_CURRENT_NORMAL
#define CGL_CURRENT_RASTER_COLOR GL_CURRENT_RASTER_COLOR
#define CGL_CURRENT_RASTER_DISTANCE GL_CURRENT_RASTER_DISTANCE
#define CGL_CURRENT_RASTER_INDEX GL_CURRENT_RASTER_INDEX
#define CGL_CURRENT_RASTER_POSITION GL_CURRENT_RASTER_POSITION
#define CGL_CURRENT_RASTER_TEXTURE_COORDS GL_CURRENT_RASTER_TEXTURE_COORDS
#define CGL_CURRENT_RASTER_POSITION_VALID GL_CURRENT_RASTER_POSITION_VALID
#define CGL_CURRENT_TEXTURE_COORDS GL_CURRENT_TEXTURE_COORDS
#define CGL_INDEX_CLEAR_VALUE GL_INDEX_CLEAR_VALUE
#define CGL_INDEX_MODE GL_INDEX_MODE
#define CGL_INDEX_WRITEMASK GL_INDEX_WRITEMASK
#define CGL_MODELVIEW_MATRIX GL_MODELVIEW_MATRIX
#define CGL_MODELVIEW_STACK_DEPTH GL_MODELVIEW_STACK_DEPTH
#define CGL_NAME_STACK_DEPTH GL_NAME_STACK_DEPTH
#define CGL_PROJECTION_MATRIX GL_PROJECTION_MATRIX
#define CGL_PROJECTION_STACK_DEPTH GL_PROJECTION_STACK_DEPTH
#define CGL_RENDER_MODE GL_RENDER_MODE
#define CGL_RGBA_MODE GL_RGBA_MODE
#define CGL_TEXTURE_MATRIX GL_TEXTURE_MATRIX
#define CGL_TEXTURE_STACK_DEPTH GL_TEXTURE_STACK_DEPTH
#define CGL_VIEWPORT GL_VIEWPORT
#define CGL_AUTO_NORMAL GL_AUTO_NORMAL
#define CGL_COEFF GL_COEFF
#define CGL_ORDER GL_ORDER
#define CGL_DOMAIN GL_DOMAIN
#define CGL_PERSPECTIVE_CORRECTION_HINT GL_PERSPECTIVE_CORRECTION_HINT
#define CGL_POINT_SMOOTH_HINT GL_POINT_SMOOTH_HINT
#define CGL_LINE_SMOOTH_HINT GL_LINE_SMOOTH_HINT
#define CGL_POLYGON_SMOOTH_HINT GL_POLYGON_SMOOTH_HINT
#define CGL_FOG_HINT GL_FOG_HINT
#define CGL_DONT_CARE GL_DONT_CARE
#define CGL_FASTEST GL_FASTEST
#define CGL_NICEST GL_NICEST
#define CGL_SCISSOR_BOX GL_SCISSOR_BOX
#define CGL_SCISSOR_TEST GL_SCISSOR_TEST
#define CGL_MAP_COLOR GL_MAP_COLOR
#define CGL_MAP_STENCIL GL_MAP_STENCIL
#define CGL_INDEX_SHIFT GL_INDEX_SHIFT
#define CGL_INDEX_OFFSET GL_INDEX_OFFSET
#define CGL_RED_SCALE GL_RED_SCALE
#define CGL_RED_BIAS GL_RED_BIAS
#define CGL_GREEN_SCALE GL_GREEN_SCALE
#define CGL_GREEN_BIAS GL_GREEN_BIAS
#define CGL_BLUE_SCALE GL_BLUE_SCALE
#define CGL_BLUE_BIAS GL_BLUE_BIAS
#define CGL_ALPHA_SCALE GL_ALPHA_SCALE
#define CGL_ALPHA_BIAS GL_ALPHA_BIAS
#define CGL_DEPTH_SCALE GL_DEPTH_SCALE
#define CGL_DEPTH_BIAS GL_DEPTH_BIAS
#define CGL_PIXEL_MAP_S_TO_S_SIZE GL_PIXEL_MAP_S_TO_S_SIZE
#define CGL_PIXEL_MAP_I_TO_I_SIZE GL_PIXEL_MAP_I_TO_I_SIZE
#define CGL_PIXEL_MAP_I_TO_R_SIZE GL_PIXEL_MAP_I_TO_R_SIZE
#define CGL_PIXEL_MAP_I_TO_G_SIZE GL_PIXEL_MAP_I_TO_G_SIZE
#define CGL_PIXEL_MAP_I_TO_B_SIZE GL_PIXEL_MAP_I_TO_B_SIZE
#define CGL_PIXEL_MAP_I_TO_A_SIZE GL_PIXEL_MAP_I_TO_A_SIZE
#define CGL_PIXEL_MAP_R_TO_R_SIZE GL_PIXEL_MAP_R_TO_R_SIZE
#define CGL_PIXEL_MAP_G_TO_G_SIZE GL_PIXEL_MAP_G_TO_G_SIZE
#define CGL_PIXEL_MAP_B_TO_B_SIZE GL_PIXEL_MAP_B_TO_B_SIZE
#define CGL_PIXEL_MAP_A_TO_A_SIZE GL_PIXEL_MAP_A_TO_A_SIZE
#define CGL_PIXEL_MAP_S_TO_S GL_PIXEL_MAP_S_TO_S
#define CGL_PIXEL_MAP_I_TO_I GL_PIXEL_MAP_I_TO_I
#define CGL_PIXEL_MAP_I_TO_R GL_PIXEL_MAP_I_TO_R
#define CGL_PIXEL_MAP_I_TO_G GL_PIXEL_MAP_I_TO_G
#define CGL_PIXEL_MAP_I_TO_B GL_PIXEL_MAP_I_TO_B
#define CGL_PIXEL_MAP_I_TO_A GL_PIXEL_MAP_I_TO_A
#define CGL_PIXEL_MAP_R_TO_R GL_PIXEL_MAP_R_TO_R
#define CGL_PIXEL_MAP_G_TO_G GL_PIXEL_MAP_G_TO_G
#define CGL_PIXEL_MAP_B_TO_B GL_PIXEL_MAP_B_TO_B
#define CGL_PIXEL_MAP_A_TO_A GL_PIXEL_MAP_A_TO_A
#define CGL_PACK_ALIGNMENT GL_PACK_ALIGNMENT
#define CGL_PACK_LSB_FIRST GL_PACK_LSB_FIRST
#define CGL_PACK_ROW_LENGTH GL_PACK_ROW_LENGTH
#define CGL_PACK_SKIP_PIXELS GL_PACK_SKIP_PIXELS
#define CGL_PACK_SKIP_ROWS GL_PACK_SKIP_ROWS
#define CGL_PACK_SWAP_BYTES GL_PACK_SWAP_BYTES
#define CGL_UNPACK_ALIGNMENT GL_UNPACK_ALIGNMENT
#define CGL_UNPACK_LSB_FIRST GL_UNPACK_LSB_FIRST
#define CGL_UNPACK_ROW_LENGTH GL_UNPACK_ROW_LENGTH
#define CGL_UNPACK_SKIP_PIXELS GL_UNPACK_SKIP_PIXELS
#define CGL_UNPACK_SKIP_ROWS GL_UNPACK_SKIP_ROWS
#define CGL_UNPACK_SWAP_BYTES GL_UNPACK_SWAP_BYTES
#define CGL_ZOOM_X GL_ZOOM_X
#define CGL_ZOOM_Y GL_ZOOM_Y
#define CGL_TEXTURE_ENV GL_TEXTURE_ENV
#define CGL_TEXTURE_ENV_MODE GL_TEXTURE_ENV_MODE
#define CGL_TEXTURE_WRAP_S GL_TEXTURE_WRAP_S
#define CGL_TEXTURE_WRAP_T GL_TEXTURE_WRAP_T
#define CGL_TEXTURE_MAG_FILTER GL_TEXTURE_MAG_FILTER
#define CGL_TEXTURE_MIN_FILTER GL_TEXTURE_MIN_FILTER
#define CGL_TEXTURE_ENV_COLOR GL_TEXTURE_ENV_COLOR
#define CGL_TEXTURE_GEN_S GL_TEXTURE_GEN_S
#define CGL_TEXTURE_GEN_T GL_TEXTURE_GEN_T
#define CGL_TEXTURE_GEN_MODE GL_TEXTURE_GEN_MODE
#define CGL_TEXTURE_BORDER_COLOR GL_TEXTURE_BORDER_COLOR
#define CGL_TEXTURE_WIDTH GL_TEXTURE_WIDTH
#define CGL_TEXTURE_HEIGHT GL_TEXTURE_HEIGHT
#define CGL_TEXTURE_BORDER GL_TEXTURE_BORDER
#define CGL_TEXTURE_COMPONENTS GL_TEXTURE_COMPONENTS
#define CGL_TEXTURE_RED_SIZE GL_TEXTURE_RED_SIZE
#define CGL_TEXTURE_GREEN_SIZE GL_TEXTURE_GREEN_SIZE
#define CGL_TEXTURE_BLUE_SIZE GL_TEXTURE_BLUE_SIZE
#define CGL_TEXTURE_ALPHA_SIZE GL_TEXTURE_ALPHA_SIZE
#define CGL_TEXTURE_LUMINANCE_SIZE GL_TEXTURE_LUMINANCE_SIZE
#define CGL_TEXTURE_INTENSITY_SIZE GL_TEXTURE_INTENSITY_SIZE
#define CGL_NEAREST_MIPMAP_NEAREST GL_NEAREST_MIPMAP_NEAREST
#define CGL_NEAREST_MIPMAP_LINEAR GL_NEAREST_MIPMAP_LINEAR
#define CGL_LINEAR_MIPMAP_NEAREST GL_LINEAR_MIPMAP_NEAREST
#define CGL_LINEAR_MIPMAP_LINEAR GL_LINEAR_MIPMAP_LINEAR
#define CGL_OBJECT_LINEAR GL_OBJECT_LINEAR
#define CGL_OBJECT_PLANE GL_OBJECT_PLANE
#define CGL_EYE_LINEAR GL_EYE_LINEAR
#define CGL_EYE_PLANE GL_EYE_PLANE
#define CGL_SPHERE_MAP GL_SPHERE_MAP
#define CGL_DECAL GL_DECAL
#define CGL_MODULATE GL_MODULATE
#define CGL_NEAREST GL_NEAREST
#define CGL_REPEAT GL_REPEAT
#define CGL_CLAMP GL_CLAMP
#define CGL_S GL_S
#define CGL_T GL_T
#define CGL_R GL_R
#define CGL_Q GL_Q
#define CGL_TEXTURE_GEN_R GL_TEXTURE_GEN_R
#define CGL_TEXTURE_GEN_Q GL_TEXTURE_GEN_Q
#define CGL_VENDOR GL_VENDOR
#define CGL_RENDERER GL_RENDERER
#define CGL_VERSION GL_VERSION
#define CGL_EXTENSIONS GL_EXTENSIONS
#define CGL_NO_ERROR GL_NO_ERROR
#define CGL_INVALID_ENUM GL_INVALID_ENUM
#define CGL_INVALID_VALUE GL_INVALID_VALUE
#define CGL_INVALID_OPERATION GL_INVALID_OPERATION
#define CGL_STACK_OVERFLOW GL_STACK_OVERFLOW
#define CGL_STACK_UNDERFLOW GL_STACK_UNDERFLOW
#define CGL_OUT_OF_MEMORY GL_OUT_OF_MEMORY
#define CGL_CURRENT_BIT GL_CURRENT_BIT
#define CGL_POINT_BIT GL_POINT_BIT
#define CGL_LINE_BIT GL_LINE_BIT
#define CGL_POLYGON_BIT GL_POLYGON_BIT
#define CGL_POLYGON_STIPPLE_BIT GL_POLYGON_STIPPLE_BIT
#define CGL_PIXEL_MODE_BIT GL_PIXEL_MODE_BIT
#define CGL_LIGHTING_BIT GL_LIGHTING_BIT
#define CGL_FOG_BIT GL_FOG_BIT
#define CGL_DEPTH_BUFFER_BIT GL_DEPTH_BUFFER_BIT
#define CGL_ACCUM_BUFFER_BIT GL_ACCUM_BUFFER_BIT
#define CGL_STENCIL_BUFFER_BIT GL_STENCIL_BUFFER_BIT
#define CGL_VIEWPORT_BIT GL_VIEWPORT_BIT
#define CGL_TRANSFORM_BIT GL_TRANSFORM_BIT
#define CGL_ENABLE_BIT GL_ENABLE_BIT
#define CGL_COLOR_BUFFER_BIT GL_COLOR_BUFFER_BIT
#define CGL_HINT_BIT GL_HINT_BIT
#define CGL_EVAL_BIT GL_EVAL_BIT
#define CGL_LIST_BIT GL_LIST_BIT
#define CGL_TEXTURE_BIT GL_TEXTURE_BIT
#define CGL_SCISSOR_BIT GL_SCISSOR_BIT
#define CGL_ALL_ATTRIB_BITS GL_ALL_ATTRIB_BITS
#define CGL_TEXTURE_PRIORITY GL_TEXTURE_PRIORITY
#define CGL_TEXTURE_RESIDENT GL_TEXTURE_RESIDENT
#define CGL_TEXTURE_INTERNAL_FORMAT GL_TEXTURE_INTERNAL_FORMAT
#define CGL_INTENSITY GL_INTENSITY
#define CGL_CLIENT_PIXEL_STORE_BIT GL_CLIENT_PIXEL_STORE_BIT
#define CGL_CLIENT_VERTEX_ARRAY_BIT GL_CLIENT_VERTEX_ARRAY_BIT
#define CGL_ALL_CLIENT_ATTRIB_BITS GL_ALL_CLIENT_ATTRIB_BITS
#define CGL_CLIENT_ALL_ATTRIB_BITS GL_CLIENT_ALL_ATTRIB_BITS
#define CGL_RESCALE_NORMAL GL_RESCALE_NORMAL
#define CGL_CLAMP_TO_EDGE GL_CLAMP_TO_EDGE
#define CGL_MAX_ELEMENTS_VERTICES GL_MAX_ELEMENTS_VERTICES
#define CGL_MAX_ELEMENTS_INDICES GL_MAX_ELEMENTS_INDICES
#define CGL_BGR GL_BGR
#define CGL_BGRA GL_BGRA
#define CGL_LIGHT_MODEL_COLOR_CONTROL GL_LIGHT_MODEL_COLOR_CONTROL
#define CGL_SINGLE_COLOR GL_SINGLE_COLOR
#define CGL_SEPARATE_SPECULAR_COLOR GL_SEPARATE_SPECULAR_COLOR
#define CGL_TEXTURE_MIN_LOD GL_TEXTURE_MIN_LOD
#define CGL_TEXTURE_MAX_LOD GL_TEXTURE_MAX_LOD
#define CGL_TEXTURE_BASE_LEVEL GL_TEXTURE_BASE_LEVEL
#define CGL_TEXTURE_MAX_LEVEL GL_TEXTURE_MAX_LEVEL
#define CGL_SMOOTH_POINT_SIZE_RANGE GL_SMOOTH_POINT_SIZE_RANGE
#define CGL_SMOOTH_POINT_SIZE_GRANULARITY GL_SMOOTH_POINT_SIZE_GRANULARITY
#define CGL_SMOOTH_LINE_WIDTH_RANGE GL_SMOOTH_LINE_WIDTH_RANGE
#define CGL_SMOOTH_LINE_WIDTH_GRANULARITY GL_SMOOTH_LINE_WIDTH_GRANULARITY
#define CGL_ALIASED_POINT_SIZE_RANGE GL_ALIASED_POINT_SIZE_RANGE
#define CGL_ALIASED_LINE_WIDTH_RANGE GL_ALIASED_LINE_WIDTH_RANGE
#define CGL_PACK_SKIP_IMAGES GL_PACK_SKIP_IMAGES
#define CGL_PACK_IMAGE_HEIGHT GL_PACK_IMAGE_HEIGHT
#define CGL_UNPACK_SKIP_IMAGES GL_UNPACK_SKIP_IMAGES
#define CGL_UNPACK_IMAGE_HEIGHT GL_UNPACK_IMAGE_HEIGHT
#define CGL_TEXTURE_DEPTH GL_TEXTURE_DEPTH
#define CGL_TEXTURE_WRAP_R GL_TEXTURE_WRAP_R
#define CGL_CONSTANT_COLOR GL_CONSTANT_COLOR
#define CGL_ONE_MINUS_CONSTANT_COLOR GL_ONE_MINUS_CONSTANT_COLOR
#define CGL_CONSTANT_ALPHA GL_CONSTANT_ALPHA
#define CGL_ONE_MINUS_CONSTANT_ALPHA GL_ONE_MINUS_CONSTANT_ALPHA
#define CGL_COLOR_TABLE GL_COLOR_TABLE
#define CGL_POST_CONVOLUTION_COLOR_TABLE GL_POST_CONVOLUTION_COLOR_TABLE
#define CGL_POST_COLOR_MATRIX_COLOR_TABLE GL_POST_COLOR_MATRIX_COLOR_TABLE
#define CGL_PROXY_COLOR_TABLE GL_PROXY_COLOR_TABLE
#define CGL_PROXY_POST_CONVOLUTION_COLOR_TABLE GL_PROXY_POST_CONVOLUTION_COLOR_TABLE
#define CGL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE GL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE
#define CGL_COLOR_TABLE_SCALE GL_COLOR_TABLE_SCALE
#define CGL_COLOR_TABLE_BIAS GL_COLOR_TABLE_BIAS
#define CGL_COLOR_TABLE_FORMAT GL_COLOR_TABLE_FORMAT
#define CGL_COLOR_TABLE_WIDTH GL_COLOR_TABLE_WIDTH
#define CGL_COLOR_TABLE_RED_SIZE GL_COLOR_TABLE_RED_SIZE
#define CGL_COLOR_TABLE_GREEN_SIZE GL_COLOR_TABLE_GREEN_SIZE
#define CGL_COLOR_TABLE_BLUE_SIZE GL_COLOR_TABLE_BLUE_SIZE
#define CGL_COLOR_TABLE_ALPHA_SIZE GL_COLOR_TABLE_ALPHA_SIZE
#define CGL_COLOR_TABLE_LUMINANCE_SIZE GL_COLOR_TABLE_LUMINANCE_SIZE
#define CGL_COLOR_TABLE_INTENSITY_SIZE GL_COLOR_TABLE_INTENSITY_SIZE
#define CGL_CONVOLUTION_BORDER_MODE GL_CONVOLUTION_BORDER_MODE
#define CGL_CONVOLUTION_FILTER_SCALE GL_CONVOLUTION_FILTER_SCALE
#define CGL_CONVOLUTION_FILTER_BIAS GL_CONVOLUTION_FILTER_BIAS
#define CGL_REDUCE GL_REDUCE
#define CGL_CONVOLUTION_FORMAT GL_CONVOLUTION_FORMAT
#define CGL_CONVOLUTION_WIDTH GL_CONVOLUTION_WIDTH
#define CGL_CONVOLUTION_HEIGHT GL_CONVOLUTION_HEIGHT
#define CGL_MAX_CONVOLUTION_WIDTH GL_MAX_CONVOLUTION_WIDTH
#define CGL_MAX_CONVOLUTION_HEIGHT GL_MAX_CONVOLUTION_HEIGHT
#define CGL_POST_CONVOLUTION_RED_SCALE GL_POST_CONVOLUTION_RED_SCALE
#define CGL_POST_CONVOLUTION_GREEN_SCALE GL_POST_CONVOLUTION_GREEN_SCALE
#define CGL_POST_CONVOLUTION_BLUE_SCALE GL_POST_CONVOLUTION_BLUE_SCALE
#define CGL_POST_CONVOLUTION_ALPHA_SCALE GL_POST_CONVOLUTION_ALPHA_SCALE
#define CGL_POST_CONVOLUTION_RED_BIAS GL_POST_CONVOLUTION_RED_BIAS
#define CGL_POST_CONVOLUTION_GREEN_BIAS GL_POST_CONVOLUTION_GREEN_BIAS
#define CGL_POST_CONVOLUTION_BLUE_BIAS GL_POST_CONVOLUTION_BLUE_BIAS
#define CGL_POST_CONVOLUTION_ALPHA_BIAS GL_POST_CONVOLUTION_ALPHA_BIAS
#define CGL_CONSTANT_BORDER GL_CONSTANT_BORDER
#define CGL_REPLICATE_BORDER GL_REPLICATE_BORDER
#define CGL_CONVOLUTION_BORDER_COLOR GL_CONVOLUTION_BORDER_COLOR
#define CGL_COLOR_MATRIX GL_COLOR_MATRIX
#define CGL_COLOR_MATRIX_STACK_DEPTH GL_COLOR_MATRIX_STACK_DEPTH
#define CGL_MAX_COLOR_MATRIX_STACK_DEPTH GL_MAX_COLOR_MATRIX_STACK_DEPTH
#define CGL_POST_COLOR_MATRIX_RED_SCALE GL_POST_COLOR_MATRIX_RED_SCALE
#define CGL_POST_COLOR_MATRIX_GREEN_SCALE GL_POST_COLOR_MATRIX_GREEN_SCALE
#define CGL_POST_COLOR_MATRIX_BLUE_SCALE GL_POST_COLOR_MATRIX_BLUE_SCALE
#define CGL_POST_COLOR_MATRIX_ALPHA_SCALE GL_POST_COLOR_MATRIX_ALPHA_SCALE
#define CGL_POST_COLOR_MATRIX_RED_BIAS GL_POST_COLOR_MATRIX_RED_BIAS
#define CGL_POST_COLOR_MATRIX_GREEN_BIAS GL_POST_COLOR_MATRIX_GREEN_BIAS
#define CGL_POST_COLOR_MATRIX_BLUE_BIAS GL_POST_COLOR_MATRIX_BLUE_BIAS
#define CGL_POST_COLOR_MATRIX_ALPHA_BIAS GL_POST_COLOR_MATRIX_ALPHA_BIAS
#define CGL_HISTOGRAM GL_HISTOGRAM
#define CGL_PROXY_HISTOGRAM GL_PROXY_HISTOGRAM
#define CGL_HISTOGRAM_WIDTH GL_HISTOGRAM_WIDTH
#define CGL_HISTOGRAM_FORMAT GL_HISTOGRAM_FORMAT
#define CGL_HISTOGRAM_RED_SIZE GL_HISTOGRAM_RED_SIZE
#define CGL_HISTOGRAM_GREEN_SIZE GL_HISTOGRAM_GREEN_SIZE
#define CGL_HISTOGRAM_BLUE_SIZE GL_HISTOGRAM_BLUE_SIZE
#define CGL_HISTOGRAM_ALPHA_SIZE GL_HISTOGRAM_ALPHA_SIZE
#define CGL_HISTOGRAM_LUMINANCE_SIZE GL_HISTOGRAM_LUMINANCE_SIZE
#define CGL_HISTOGRAM_SINK GL_HISTOGRAM_SINK
#define CGL_MINMAX GL_MINMAX
#define CGL_MINMAX_FORMAT GL_MINMAX_FORMAT
#define CGL_MINMAX_SINK GL_MINMAX_SINK
#define CGL_TABLE_TOO_LARGE GL_TABLE_TOO_LARGE
#define CGL_BLEND_EQUATION GL_BLEND_EQUATION
#define CGL_MIN GL_MIN
#define CGL_MAX GL_MAX
#define CGL_FUNC_ADD GL_FUNC_ADD
#define CGL_FUNC_SUBTRACT GL_FUNC_SUBTRACT
#define CGL_FUNC_REVERSE_SUBTRACT GL_FUNC_REVERSE_SUBTRACT
#define CGL_BLEND_COLOR GL_BLEND_COLOR
#define CGL_ACTIVE_TEXTURE GL_ACTIVE_TEXTURE
#define CGL_CLIENT_ACTIVE_TEXTURE GL_CLIENT_ACTIVE_TEXTURE
#define CGL_MAX_TEXTURE_UNITS GL_MAX_TEXTURE_UNITS
#define CGL_NORMAL_MAP GL_NORMAL_MAP
#define CGL_REFLECTION_MAP GL_REFLECTION_MAP
#define CGL_TEXTURE_CUBE_MAP GL_TEXTURE_CUBE_MAP
#define CGL_TEXTURE_BINDING_CUBE_MAP GL_TEXTURE_BINDING_CUBE_MAP
#define CGL_TEXTURE_CUBE_MAP_POSITIVE_X GL_TEXTURE_CUBE_MAP_POSITIVE_X
#define CGL_TEXTURE_CUBE_MAP_NEGATIVE_X GL_TEXTURE_CUBE_MAP_NEGATIVE_X
#define CGL_TEXTURE_CUBE_MAP_POSITIVE_Y GL_TEXTURE_CUBE_MAP_POSITIVE_Y
#define CGL_TEXTURE_CUBE_MAP_NEGATIVE_Y GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
#define CGL_TEXTURE_CUBE_MAP_POSITIVE_Z GL_TEXTURE_CUBE_MAP_POSITIVE_Z
#define CGL_TEXTURE_CUBE_MAP_NEGATIVE_Z GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
#define CGL_PROXY_TEXTURE_CUBE_MAP GL_PROXY_TEXTURE_CUBE_MAP
#define CGL_MAX_CUBE_MAP_TEXTURE_SIZE GL_MAX_CUBE_MAP_TEXTURE_SIZE
#define CGL_COMPRESSED_ALPHA GL_COMPRESSED_ALPHA
#define CGL_COMPRESSED_LUMINANCE GL_COMPRESSED_LUMINANCE
#define CGL_COMPRESSED_LUMINANCE_ALPHA GL_COMPRESSED_LUMINANCE_ALPHA
#define CGL_COMPRESSED_INTENSITY GL_COMPRESSED_INTENSITY
#define CGL_COMPRESSED_RGB GL_COMPRESSED_RGB
#define CGL_COMPRESSED_RGBA GL_COMPRESSED_RGBA
#define CGL_TEXTURE_COMPRESSION_HINT GL_TEXTURE_COMPRESSION_HINT
#define CGL_TEXTURE_COMPRESSED_IMAGE_SIZE GL_TEXTURE_COMPRESSED_IMAGE_SIZE
#define CGL_TEXTURE_COMPRESSED GL_TEXTURE_COMPRESSED
#define CGL_NUM_COMPRESSED_TEXTURE_FORMATS GL_NUM_COMPRESSED_TEXTURE_FORMATS
#define CGL_COMPRESSED_TEXTURE_FORMATS GL_COMPRESSED_TEXTURE_FORMATS
#define CGL_MULTISAMPLE GL_MULTISAMPLE
#define CGL_SAMPLE_ALPHA_TO_COVERAGE GL_SAMPLE_ALPHA_TO_COVERAGE
#define CGL_SAMPLE_ALPHA_TO_ONE GL_SAMPLE_ALPHA_TO_ONE
#define CGL_SAMPLE_COVERAGE GL_SAMPLE_COVERAGE
#define CGL_SAMPLE_BUFFERS GL_SAMPLE_BUFFERS
#define CGL_SAMPLES GL_SAMPLES
#define CGL_SAMPLE_COVERAGE_VALUE GL_SAMPLE_COVERAGE_VALUE
#define CGL_SAMPLE_COVERAGE_INVERT GL_SAMPLE_COVERAGE_INVERT
#define CGL_MULTISAMPLE_BIT GL_MULTISAMPLE_BIT
#define CGL_TRANSPOSE_MODELVIEW_MATRIX GL_TRANSPOSE_MODELVIEW_MATRIX
#define CGL_TRANSPOSE_PROJECTION_MATRIX GL_TRANSPOSE_PROJECTION_MATRIX
#define CGL_TRANSPOSE_TEXTURE_MATRIX GL_TRANSPOSE_TEXTURE_MATRIX
#define CGL_TRANSPOSE_COLOR_MATRIX GL_TRANSPOSE_COLOR_MATRIX
#define CGL_COMBINE GL_COMBINE
#define CGL_COMBINE_RGB GL_COMBINE_RGB
#define CGL_COMBINE_ALPHA GL_COMBINE_ALPHA
#define CGL_RGB_SCALE GL_RGB_SCALE
#define CGL_ADD_SIGNED GL_ADD_SIGNED
#define CGL_INTERPOLATE GL_INTERPOLATE
#define CGL_SUBTRACT GL_SUBTRACT
#define CGL_CONSTANT GL_CONSTANT
#define CGL_PRIMARY_COLOR GL_PRIMARY_COLOR
#define CGL_PREVIOUS GL_PREVIOUS
#define CGL_CLAMP_TO_BORDER GL_CLAMP_TO_BORDER
#define CGL_ACTIVE_TEXTURE_ARB GL_ACTIVE_TEXTURE_ARB
#define CGL_CLIENT_ACTIVE_TEXTURE_ARB GL_CLIENT_ACTIVE_TEXTURE_ARB
#define CGL_MAX_TEXTURE_UNITS_ARB GL_MAX_TEXTURE_UNITS_ARB
#define CGL_DEBUG_OBJECT_MESA GL_DEBUG_OBJECT_MESA
#define CGL_DEBUG_PRINT_MESA GL_DEBUG_PRINT_MESA
#define CGL_DEBUG_ASSERT_MESA GL_DEBUG_ASSERT_MESA
#define CGL_TRACE_ALL_BITS_MESA GL_TRACE_ALL_BITS_MESA
#define CGL_TRACE_OPERATIONS_BIT_MESA GL_TRACE_OPERATIONS_BIT_MESA
#define CGL_TRACE_PRIMITIVES_BIT_MESA GL_TRACE_PRIMITIVES_BIT_MESA
#define CGL_TRACE_ARRAYS_BIT_MESA GL_TRACE_ARRAYS_BIT_MESA
#define CGL_TRACE_TEXTURES_BIT_MESA GL_TRACE_TEXTURES_BIT_MESA
#define CGL_TRACE_PIXELS_BIT_MESA GL_TRACE_PIXELS_BIT_MESA
#define CGL_TRACE_ERRORS_BIT_MESA GL_TRACE_ERRORS_BIT_MESA
#define CGL_TRACE_MASK_MESA GL_TRACE_MASK_MESA
#define CGL_TRACE_NAME_MESA GL_TRACE_NAME_MESA
#define CGL_DEPTH_STENCIL_MESA GL_DEPTH_STENCIL_MESA
#define CGL_FRAGMENT_PROGRAM_POSITION_MESA GL_FRAGMENT_PROGRAM_POSITION_MESA
#define CGL_FRAGMENT_PROGRAM_CALLBACK_MESA GL_FRAGMENT_PROGRAM_CALLBACK_MESA
#define CGL_FRAGMENT_PROGRAM_CALLBACK_FUNC_MESA GL_FRAGMENT_PROGRAM_CALLBACK_FUNC_MESA
#define CGL_FRAGMENT_PROGRAM_CALLBACK_DATA_MESA GL_FRAGMENT_PROGRAM_CALLBACK_DATA_MESA
#define CGL_VERTEX_PROGRAM_POSITION_MESA GL_VERTEX_PROGRAM_POSITION_MESA
#define CGL_VERTEX_PROGRAM_CALLBACK_MESA GL_VERTEX_PROGRAM_CALLBACK_MESA
#define CGL_VERTEX_PROGRAM_CALLBACK_FUNC_MESA GL_VERTEX_PROGRAM_CALLBACK_FUNC_MESA
#define CGL_VERTEX_PROGRAM_CALLBACK_DATA_MESA GL_VERTEX_PROGRAM_CALLBACK_DATA_MESA
#define CGL_ALPHA_BLEND_EQUATION_ATI GL_ALPHA_BLEND_EQUATION_ATI
#define CGL_TIME_ELAPSED_EXT GL_TIME_ELAPSED_EXT
#define CGL_READ_FRAMEBUFFER_EXT GL_READ_FRAMEBUFFER_EXT
#define CGL_DRAW_FRAMEBUFFER_EXT GL_DRAW_FRAMEBUFFER_EXT
#define CGL_DRAW_FRAMEBUFFER_BINDING_EXT GL_DRAW_FRAMEBUFFER_BINDING_EXT
#define CGL_READ_FRAMEBUFFER_BINDING_EXT GL_READ_FRAMEBUFFER_BINDING_EXT
#define CGL_DEPTH_STENCIL_EXT GL_DEPTH_STENCIL_EXT
#define CGL_TEXTURE_STENCIL_SIZE_EXT GL_TEXTURE_STENCIL_SIZE_EXT
#define CGL_SRGB_EXT GL_SRGB_EXT
#define CGL_SRGB_ALPHA_EXT GL_SRGB_ALPHA_EXT
#define CGL_SLUMINANCE_ALPHA_EXT GL_SLUMINANCE_ALPHA_EXT
#define CGL_SLUMINANCE_EXT GL_SLUMINANCE_EXT
#define CGL_COMPRESSED_SRGB_EXT GL_COMPRESSED_SRGB_EXT
#define CGL_COMPRESSED_SRGB_ALPHA_EXT GL_COMPRESSED_SRGB_ALPHA_EXT
#define CGL_COMPRESSED_SLUMINANCE_EXT GL_COMPRESSED_SLUMINANCE_EXT
#define CGL_COMPRESSED_SLUMINANCE_ALPHA_EXT GL_COMPRESSED_SLUMINANCE_ALPHA_EXT
/* extras */
#define CGL_TEXTURE_2D GL_TEXTURE_2D
#define CGL_ARGB GL_ARGB
#define CGL_TEXTURE_RECTANGLE_ARB GL_TEXTURE_RECTANGLE_ARB
G_END_DECLS
#endif

437
gl/cogl.c
View File

@ -23,8 +23,67 @@
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include "cogl.h"
#include <GL/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
{
GLuint Token;
const char *String;
};
static const struct token_string Errors[] = {
{ GL_NO_ERROR, "no error" },
{ GL_INVALID_ENUM, "invalid enumerant" },
{ GL_INVALID_VALUE, "invalid value" },
{ GL_INVALID_OPERATION, "invalid operation" },
{ GL_STACK_OVERFLOW, "stack overflow" },
{ GL_STACK_UNDERFLOW, "stack underflow" },
{ GL_OUT_OF_MEMORY, "out of memory" },
#ifdef GL_INVALID_FRAMEBUFFER_OPERATION_EXT
{ GL_INVALID_FRAMEBUFFER_OPERATION_EXT, "invalid framebuffer operation" },
#endif
{ ~0, NULL }
};
static const char*
error_string(GLenum errorCode)
{
int i;
for (i = 0; Errors[i].String; i++) {
if (Errors[i].Token == errorCode)
return Errors[i].String;
}
return "unknown";
}
#endif
#if COGL_DEBUG
#define GE(x...) G_STMT_START { \
GLenum err; \
(x); \
while ((err = glGetError()) != GL_NO_ERROR) { \
fprintf(stderr, "glError: %s caught at %s:%u\n", \
(char *)error_string(err), \
__FILE__, __LINE__); \
} \
} G_STMT_END
#else
#define GE(x) (x);
#endif
CoglFuncPtr
cogl_get_proc_address (const gchar* name)
@ -41,14 +100,18 @@ cogl_check_extension (const gchar *name, const gchar *ext)
void
cogl_paint_init (ClutterColor *color)
{
glClearColor (((float) color->red / 0xff * 1.0),
((float) color->green / 0xff * 1.0),
((float) color->blue / 0xff * 1.0),
0.0);
GE( glClearColor (((float) color->red / 0xff * 1.0),
((float) color->green / 0xff * 1.0),
((float) color->blue / 0xff * 1.0),
0.0) );
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);
glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
}
/* FIXME: inline most of these */
@ -65,7 +128,7 @@ cogl_pop_matrix (void)
}
void
cogl_scaled (ClutterFixed x, ClutterFixed y)
cogl_scale (ClutterFixed x, ClutterFixed y)
{
glScaled (CLUTTER_FIXED_TO_DOUBLE (x),
CLUTTER_FIXED_TO_DOUBLE (y),
@ -100,3 +163,367 @@ cogl_rotate (gint angle, gint x, gint y, gint z)
{
glRotatef ((float)angle, (float)x, (float)y, (float)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 (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;
}
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)
{
glColor4ub (color->red, color->green, color->blue, color->alpha);
}
gboolean
cogl_texture_can_size (COGLenum pixel_format,
COGLenum pixel_type,
int width,
int height)
{
GLint new_width = 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;
}
void
cogl_texture_quad (gint x1,
gint x2,
gint y1,
gint y2,
ClutterFixed tx1,
ClutterFixed ty1,
ClutterFixed tx2,
ClutterFixed ty2)
{
gdouble txf1, tyf1, txf2, tyf2;
txf1 = CLUTTER_FIXED_TO_DOUBLE (tx1);
tyf1 = CLUTTER_FIXED_TO_DOUBLE (ty1);
txf2 = CLUTTER_FIXED_TO_DOUBLE (tx2);
tyf2 = CLUTTER_FIXED_TO_DOUBLE (ty2);
glBegin (GL_QUADS);
glTexCoord2f (txf2, tyf2); glVertex2i (x2, y2);
glTexCoord2f (txf1, tyf2); glVertex2i (x1, y2);
glTexCoord2f (txf1, tyf1); glVertex2i (x1, y1);
glTexCoord2f (txf2, tyf1); glVertex2i (x2, y1);
glEnd ();
}
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)
{
GE( glRecti (x,y ,width, height) );
}
/* FIXME: Should use ClutterReal or Fixed */
void
cogl_trapezoid (gint y1,
gint x11,
gint x21,
gint y2,
gint x12,
gint x22)
{
GE( glBegin (GL_QUADS) );
GE( glVertex2i (x11, y1) );
GE( glVertex2i (x21, y1) );
GE( glVertex2i (x22, y2) );
GE( glVertex2i (x12, y2) );
GE( glEnd () );
}
void
cogl_alpha_func (COGLenum func,
ClutterFixed ref)
{
GE( glAlphaFunc (func, CLUTTER_FIXED_TO_FLOAT(ref)) );
}
#if 0
/*
* Original floating point implementaiton of the perspective function,
* retained for reference purposes
*/
static inline void
frustum (GLfloat left,
GLfloat right,
GLfloat bottom,
GLfloat top,
GLfloat nearval,
GLfloat farval)
{
GLfloat x, y, a, b, c, d;
GLfloat m[16];
x = (2.0 * nearval) / (right - left);
y = (2.0 * nearval) / (top - bottom);
a = (right + left) / (right - left);
b = (top + bottom) / (top - bottom);
c = -(farval + nearval) / ( farval - nearval);
d = -(2.0 * farval * nearval) / (farval - nearval);
#define M(row,col) m[col*4+row]
M(0,0) = x; M(0,1) = 0.0F; M(0,2) = a; M(0,3) = 0.0F;
M(1,0) = 0.0F; M(1,1) = y; M(1,2) = b; M(1,3) = 0.0F;
M(2,0) = 0.0F; M(2,1) = 0.0F; M(2,2) = c; M(2,3) = d;
M(3,0) = 0.0F; M(3,1) = 0.0F; M(3,2) = -1.0F; M(3,3) = 0.0F;
#undef M
GE( glMultMatrixf (m) );
}
static inline void
perspective (GLfloat fovy,
GLfloat aspect,
GLfloat zNear,
GLfloat zFar)
{
GLfloat xmin, xmax, ymin, ymax;
ymax = zNear * tan (fovy * M_PI / 360.0);
ymin = -ymax;
xmin = ymin * aspect;
xmax = ymax * aspect;
printf ("%f, %f, %f, %f\n", xmin, xmax, ymin, ymax);
frustum (xmin, xmax, ymin, ymax, zNear, zFar);
}
#endif
/*
* 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;
#ifdef HAVE_COGL_GL
GLfloat m[16];
#else
GLfixed m[16];
#endif
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]
#ifdef HAVE_COGL_GL
M(0,0) = CLUTTER_FIXED_TO_FLOAT (x);
M(1,1) = CLUTTER_FIXED_TO_FLOAT (y);
M(2,2) = CLUTTER_FIXED_TO_FLOAT (c);
M(2,3) = CLUTTER_FIXED_TO_FLOAT (d);
M(3,2) = -1.0F;
GE( glMultMatrixf (m) );
#else
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) );
#endif
#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( glTranslatef (-0.5f, -0.5f, -DEFAULT_Z_CAMERA) );
GE( glScalef ( 1.0f / width,
-1.0f / height,
1.0f / width) );
GE( glTranslatef (0.0f, -1.0 * height, 0.0f) );
}

3
gles/Makefile.am
View File

@ -1,5 +1,6 @@
libclutterincludedir = $(includedir)/clutter-@CLUTTER_API_VERSION@/clutter
libclutterinclude_HEADERS = $(top_srcdir)/clutter/cogl/cogl.h
libclutterinclude_HEADERS = $(top_srcdir)/clutter/cogl/cogl.h \
$(top_srcdir)/clutter/cogl/gles/cogl-defines.h
INCLUDES = \
-I$(top_srcdir) \

440
gles/cogl-defines.h Normal file
View File

@ -0,0 +1,440 @@
/*
* Clutter COGL
*
* A basic GL/GLES Abstraction/Utility Layer
*
* Authored By Matthew Allum <mallum@openedhand.com>
*
* Copyright (C) 2007 OpenedHand
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __COGL_DEFINES_H__
#define __COGL_DEFINES_H__
G_BEGIN_DECLS
/* ClearBufferMask */
#define CGL_DEPTH_BUFFER_BIT GL_DEPTH_BUFFER_BIT
#define CGL_STENCIL_BUFFER_BIT GL_STENCIL_BUFFER_BIT
#define CGL_COLOR_BUFFER_BIT GL_COLOR_BUFFER_BIT
/* Boolean */
#define CGL_FALSE GL_FALSE
#define CGL_TRUE GL_TRUE
/* BeginMode */
#define CGL_POINTS GL_POINTS
#define CGL_LINES GL_LINES
#define CGL_LINE_LOOP GL_LINE_LOOP
#define CGL_LINE_STRIP GL_LINE_STRIP
#define CGL_TRIANGLES GL_TRIANGLES
#define CGL_TRIANGLE_STRIP GL_TRIANGLE_STRIP
#define CGL_TRIANGLE_FAN GL_TRIANGLE_FAN
/* AlphaFunction */
#define CGL_NEVER GL_NEVER
#define CGL_LESS GL_LESS
#define CGL_EQUAL GL_EQUAL
#define CGL_LEQUAL GL_LEQUAL
#define CGL_GREATER GL_GREATER
#define CGL_NOTEQUAL GL_NOTEQUAL
#define CGL_GEQUAL GL_GEQUAL
#define CGL_ALWAYS GL_ALWAYS
/* BlendingFactorDest */
#define CGL_ZERO GL_ZERO
#define CGL_ONE GL_ONE
#define CGL_SRC_COLOR GL_SRC_COLOR
#define CGL_ONE_MINUS_SRC_COLOR GL_ONE_MINUS_SRC_COLOR
#define CGL_SRC_ALPHA GL_SRC_ALPHA
#define CGL_ONE_MINUS_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
#define CGL_DST_ALPHA GL_DST_ALPHA
#define CGL_ONE_MINUS_DST_ALPHA GL_ONE_MINUS_DST_ALPHA
/* BlendingFactorSrc */
#define CGL_DST_COLOR GL_DST_COLOR
#define CGL_ONE_MINUS_DST_COLOR GL_ONE_MINUS_DST_COLOR
#define CGL_SRC_ALPHA_SATURATE GL_SRC_ALPHA_SATURATE
/* Missing; */
/* GL_ZERO */
/* GL_ONE */
/* GL_SRC_ALPHA */
/* GL_ONE_MINUS_SRC_ALPHA */
/* GL_DST_ALPHA */
/* GL_ONE_MINUS_DST_ALPHA */
/* CullFaceMode */
#define CGL_FRONT GL_FRONT
#define CGL_BACK GL_BACK
#define CGL_FRONT_AND_BACK GL_FRONT_AND_BACK
/* EnableCap */
#define CGL_FOG GL_FOG
#define CGL_LIGHTING GL_LIGHTING
#define CGL_CULL_FACE GL_CULL_FACE
#define CGL_ALPHA_TEST GL_ALPHA_TEST
#define CGL_BLEND GL_BLEND
#define CGL_COLOR_LOGIC_OP GL_COLOR_LOGIC_OP
#define CGL_DITHER GL_DITHER
#define CGL_STENCIL_TEST GL_STENCIL_TEST
#define CGL_DEPTH_TEST GL_DEPTH_TEST
#define CGL_POINT_SMOOTH GL_POINT_SMOOTH
#define CGL_LINE_SMOOTH GL_LINE_SMOOTH
#define CGL_SCISSOR_TEST GL_SCISSOR_TEST
#define CGL_COLOR_MATERIAL GL_COLOR_MATERIAL
#define CGL_NORMALIZE GL_NORMALIZE
#define CGL_RESCALE_NORMAL GL_RESCALE_NORMAL
#define CGL_POLYGON_OFFSET_FILL GL_POLYGON_OFFSET_FILL
#define CGL_VERTEX_ARRAY GL_VERTEX_ARRAY
#define CGL_NORMAL_ARRAY GL_NORMAL_ARRAY
#define CGL_COLOR_ARRAY GL_COLOR_ARRAY
#define CGL_TEXTURE_COORD_ARRAY GL_TEXTURE_COORD_ARRAY
#define CGL_MULTISAMPLE GL_MULTISAMPLE
#define CGL_SAMPLE_ALPHA_TO_COVERAGE GL_SAMPLE_ALPHA_TO_COVERAGE
#define CGL_SAMPLE_ALPHA_TO_ONE GL_SAMPLE_ALPHA_TO_ONE
#define CGL_SAMPLE_COVERAGE GL_SAMPLE_COVERAGE
/* Errors */
#define CGL_NO_ERROR GL_NO_ERROR
#define CGL_INVALID_ENUM GL_INVALID_ENUM
#define CGL_INVALID_VALUE GL_INVALID_VALUE
#define CGL_INVALID_OPERATION GL_INVALID_OPERATION
#define CGL_STACK_OVERFLOW GL_STACK_OVERFLOW
#define CGL_STACK_UNDERFLOW GL_STACK_UNDERFLOW
#define CGL_OUT_OF_MEMORY GL_OUT_OF_MEMORY
/* Fog mode */
#define CGL_EXP GL_EXP
#define CGL_EXP2 GL_EXP2
#define CGL_FOG_DENSITY GL_FOG_DENSITY
/* FogParameter */
#define CGL_FOG_START GL_FOG_START
#define CGL_FOG_END GL_FOG_END
#define CGL_FOG_MODE GL_FOG_MODE
#define CGL_FOG_COLOR GL_FOG_COLOR
#define CGL_CW GL_CW
#define CGL_CCW GL_CCW
/* GetPName */
#define CGL_CURRENT_COLOR GL_CURRENT_COLOR
#define CGL_CURRENT_NORMAL GL_CURRENT_NORMAL
#define CGL_CURRENT_TEXTURE_COORDS GL_CURRENT_TEXTURE_COORDS
#define CGL_POINT_SIZE GL_POINT_SIZE
#define CGL_POINT_SIZE_MIN GL_POINT_SIZE_MIN
#define CGL_POINT_SIZE_MAX GL_POINT_SIZE_MAX
#define CGL_POINT_FADE_THRESHOLD_SIZE GL_POINT_FADE_THRESHOLD_SIZE
#define CGL_POINT_DISTANCE_ATTENUATION GL_POINT_DISTANCE_ATTENUATION
#define CGL_SMOOTH_POINT_SIZE_RANGE GL_SMOOTH_POINT_SIZE_RANGE
#define CGL_LINE_WIDTH GL_LINE_WIDTH
#define CGL_SMOOTH_LINE_WIDTH_RANGE GL_SMOOTH_LINE_WIDTH_RANGE
#define CGL_ALIASED_POINT_SIZE_RANGE GL_ALIASED_POINT_SIZE_RANGE
#define CGL_ALIASED_LINE_WIDTH_RANGE GL_ALIASED_LINE_WIDTH_RANGE
#define CGL_CULL_FACE_MODE GL_CULL_FACE_MODE
#define CGL_FRONT_FACE GL_FRONT_FACE
#define CGL_SHADE_MODEL GL_SHADE_MODEL
#define CGL_DEPTH_RANGE GL_DEPTH_RANGE
#define CGL_DEPTH_WRITEMASK GL_DEPTH_WRITEMASK
#define CGL_DEPTH_CLEAR_VALUE GL_DEPTH_CLEAR_VALUE
#define CGL_DEPTH_FUNC GL_DEPTH_FUNC
#define CGL_STENCIL_CLEAR_VALUE GL_STENCIL_CLEAR_VALUE
#define CGL_STENCIL_FUNC GL_STENCIL_FUNC
#define CGL_STENCIL_VALUE_MASK GL_STENCIL_VALUE_MASK
#define CGL_STENCIL_FAIL GL_STENCIL_FAIL
#define CGL_STENCIL_PASS_DEPTH_FAIL GL_STENCIL_PASS_DEPTH_FAIL
#define CGL_STENCIL_PASS_DEPTH_PASS GL_STENCIL_PASS_DEPTH_PASS
#define CGL_STENCIL_REF GL_STENCIL_REF
#define CGL_STENCIL_WRITEMASK GL_STENCIL_WRITEMASK
#define CGL_MATRIX_MODE GL_MATRIX_MODE
#define CGL_VIEWPORT GL_VIEWPORT
#define CGL_MODELVIEW_STACK_DEPTH GL_MODELVIEW_STACK_DEPTH
#define CGL_PROJECTION_STACK_DEPTH GL_PROJECTION_STACK_DEPTH
#define CGL_TEXTURE_STACK_DEPTH GL_TEXTURE_STACK_DEPTH
#define CGL_MODELVIEW_MATRIX GL_MODELVIEW_MATRIX
#define CGL_PROJECTION_MATRIX GL_PROJECTION_MATRIX
#define CGL_TEXTURE_MATRIX GL_TEXTURE_MATRIX
#define CGL_ALPHA_TEST_FUNC GL_ALPHA_TEST_FUNC
#define CGL_ALPHA_TEST_REF GL_ALPHA_TEST_REF
#define CGL_BLEND_DST GL_BLEND_DST
#define CGL_BLEND_SRC GL_BLEND_SRC
#define CGL_LOGIC_OP_MODE GL_LOGIC_OP_MODE
#define CGL_SCISSOR_BOX GL_SCISSOR_BOX
#define CGL_SCISSOR_TEST GL_SCISSOR_TEST
#define CGL_COLOR_CLEAR_VALUE GL_COLOR_CLEAR_VALUE
#define CGL_COLOR_WRITEMASK GL_COLOR_WRITEMASK
#define CGL_UNPACK_ALIGNMENT GL_UNPACK_ALIGNMENT
#define CGL_PACK_ALIGNMENT GL_PACK_ALIGNMENT
#define CGL_MAX_LIGHTS GL_MAX_LIGHTS
#define CGL_MAX_CLIP_PLANES GL_MAX_CLIP_PLANES
#define CGL_MAX_TEXTURE_SIZE GL_MAX_TEXTURE_SIZE
#define CGL_MAX_MODELVIEW_STACK_DEPTH GL_MAX_MODELVIEW_STACK_DEPTH
#define CGL_MAX_PROJECTION_STACK_DEPTH GL_MAX_PROJECTION_STACK_DEPTH
#define CGL_MAX_TEXTURE_STACK_DEPTH GL_MAX_TEXTURE_STACK_DEPTH
#define CGL_MAX_VIEWPORT_DIMS GL_MAX_VIEWPORT_DIMS
#define CGL_MAX_ELEMENTS_VERTICES GL_MAX_ELEMENTS_VERTICES
#define CGL_MAX_ELEMENTS_INDICES GL_MAX_ELEMENTS_INDICES
#define CGL_MAX_TEXTURE_UNITS GL_MAX_TEXTURE_UNITS
#define CGL_SUBPIXEL_BITS GL_SUBPIXEL_BITS
#define CGL_RED_BITS GL_RED_BITS
#define CGL_GREEN_BITS GL_GREEN_BITS
#define CGL_BLUE_BITS GL_BLUE_BITS
#define CGL_ALPHA_BITS GL_ALPHA_BITS
#define CGL_DEPTH_BITS GL_DEPTH_BITS
#define CGL_STENCIL_BITS GL_STENCIL_BITS
#define CGL_POLYGON_OFFSET_UNITS GL_POLYGON_OFFSET_UNITS
#define CGL_POLYGON_OFFSET_FILL GL_POLYGON_OFFSET_FILL
#define CGL_POLYGON_OFFSET_FACTOR GL_POLYGON_OFFSET_FACTOR
#define CGL_VERTEX_ARRAY_SIZE GL_VERTEX_ARRAY_SIZE
#define CGL_VERTEX_ARRAY_TYPE GL_VERTEX_ARRAY_TYPE
#define CGL_VERTEX_ARRAY_STRIDE GL_VERTEX_ARRAY_STRIDE
#define CGL_NORMAL_ARRAY_TYPE GL_NORMAL_ARRAY_TYPE
#define CGL_NORMAL_ARRAY_STRIDE GL_NORMAL_ARRAY_STRIDE
#define CGL_COLOR_ARRAY_SIZE GL_COLOR_ARRAY_SIZE
#define CGL_COLOR_ARRAY_TYPE GL_COLOR_ARRAY_TYPE
#define CGL_COLOR_ARRAY_STRIDE GL_COLOR_ARRAY_STRIDE
#define CGL_TEXTURE_COORD_ARRAY_SIZE GL_TEXTURE_COORD_ARRAY_SIZE
#define CGL_TEXTURE_COORD_ARRAY_TYPE GL_TEXTURE_COORD_ARRAY_TYPE
#define CGL_TEXTURE_COORD_ARRAY_STRIDE GL_TEXTURE_COORD_ARRAY_STRIDE
#define CGL_VERTEX_ARRAY_POINTER GL_VERTEX_ARRAY_POINTER
#define CGL_NORMAL_ARRAY_POINTER GL_NORMAL_ARRAY_POINTER
#define CGL_COLOR_ARRAY_POINTER GL_COLOR_ARRAY_POINTER
#define CGL_TEXTURE_COORD_ARRAY_POINTER GL_TEXTURE_COORD_ARRAY_POINTER
#define CGL_SAMPLE_BUFFERS GL_SAMPLE_BUFFERS
#define CGL_SAMPLES GL_SAMPLES
#define CGL_SAMPLE_COVERAGE_VALUE GL_SAMPLE_COVERAGE_VALUE
#define CGL_SAMPLE_COVERAGE_INVERT GL_SAMPLE_COVERAGE_INVERT
/* GetTextureParameter - missing */
/* GL_TEXTURE_MAG_FILTER */
/* GL_TEXTURE_MIN_FILTER */
/* GL_TEXTURE_WRAP_S */
/* GL_TEXTURE_WRAP_T */
#define CGL_IMPLEMENTATION_COLOR_READ_TYPE_OES GL_IMPLEMENTATION_COLOR_READ_TYPE_OES
#define CGL_IMPLEMENTATION_COLOR_READ_FORMAT_OES GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES
#define CGL_NUM_COMPRESSED_TEXTURE_FORMATS GL_NUM_COMPRESSED_TEXTURE_FORMATS
#define CGL_COMPRESSED_TEXTURE_FORMATS GL_COMPRESSED_TEXTURE_FORMATS
/* OES_matrix_get */
#define CGL_MODELVIEW_MATRIX_FLOAT_AS_INT_BITS GL_MODELVIEW_MATRIX_FLOAT_AS_INT_BITS
#define CGL_PROJECTION_MATRIX_FLOAT_AS_INT_BITS GL_PROJECTION_MATRIX_FLOAT_AS_INT_BITS
#define CGL_TEXTURE_MATRIX_FLOAT_AS_INT_BITS GL_TEXTURE_MATRIX_FLOAT_AS_INT_BITS
/* HintMode */
#define CGL_DONT_CARE GL_DONT_CARE
#define CGL_FASTEST GL_FASTEST
#define CGL_NICEST GL_NICEST
/* HintTarget */
#define CGL_PERSPECTIVE_CORRECTION_HINT GL_PERSPECTIVE_CORRECTION_HINT
#define CGL_POINT_SMOOTH_HINT GL_POINT_SMOOTH_HINT
#define CGL_LINE_SMOOTH_HINT GL_LINE_SMOOTH_HINT
#define CGL_POLYGON_SMOOTH_HINT GL_POLYGON_SMOOTH_HINT
#define CGL_FOG_HINT GL_FOG_HINT
#define CGL_GENERATE_MIPMAP_HINT GL_GENERATE_MIPMAP_HINT
/* LightModelParameter */
#define CGL_LIGHT_MODEL_AMBIENT GL_LIGHT_MODEL_AMBIENT
#define CGL_LIGHT_MODEL_TWO_SIDE GL_LIGHT_MODEL_TWO_SIDE
/* LightParameter */
#define CGL_AMBIENT GL_AMBIENT
#define CGL_DIFFUSE GL_DIFFUSE
#define CGL_SPECULAR GL_SPECULAR
#define CGL_POSITION GL_POSITION
#define CGL_SPOT_DIRECTION GL_SPOT_DIRECTION
#define CGL_SPOT_EXPONENT GL_SPOT_EXPONENT
#define CGL_SPOT_CUTOFF GL_SPOT_CUTOFF
#define CGL_CONSTANT_ATTENUATION GL_CONSTANT_ATTENUATION
#define CGL_LINEAR_ATTENUATION GL_LINEAR_ATTENUATION
#define CGL_QUADRATIC_ATTENUATION GL_QUADRATIC_ATTENUATION
/* DataType */
#define CGL_BYTE GL_BYTE
#define CGL_UNSIGNED_BYTE GL_UNSIGNED_BYTE
#define CGL_SHORT GL_SHORT
#define CGL_UNSIGNED_SHORT GL_UNSIGNED_SHORT
#define CGL_FLOAT GL_FLOAT
#define CGL_FIXED GL_FIXED
/* LogicOp */
#define CGL_CLEAR GL_CLEAR
#define CGL_AND GL_AND
#define CGL_AND_REVERSE GL_AND_REVERSE
#define CGL_COPY GL_COPY
#define CGL_AND_INVERTED GL_AND_INVERTED
#define CGL_NOOP GL_NOOP
#define CGL_XOR GL_XOR
#define CGL_OR GL_OR
#define CGL_NOR GL_NOR
#define CGL_EQUIV GL_EQUIV
#define CGL_INVERT GL_INVERT
#define CGL_OR_REVERSE GL_OR_REVERSE
#define CGL_COPY_INVERTED GL_COPY_INVERTED
#define CGL_OR_INVERTED GL_OR_INVERTED
#define CGL_NAND GL_NAND
#define CGL_SET GL_SET
/* MaterialParameter */
#define CGL_EMISSION GL_EMISSION
#define CGL_SHININESS GL_SHININESS
#define CGL_AMBIENT_AND_DIFFUSE GL_AMBIENT_AND_DIFFUSE
/* MatrixMode */
#define CGL_MODELVIEW GL_MODELVIEW
#define CGL_PROJECTION GL_PROJECTION
#define CGL_TEXTURE GL_TEXTURE
/* PixelFormat */
#define CGL_ALPHA GL_ALPHA
#define CGL_RGB GL_RGB
#define CGL_RGBA GL_RGBA
#define CGL_LUMINANCE GL_LUMINANCE
#define CGL_LUMINANCE_ALPHA GL_LUMINANCE_ALPHA
/* PixelStoreParameter */
#define CGL_UNPACK_ALIGNMENT GL_UNPACK_ALIGNMENT
#define CGL_PACK_ALIGNMENT GL_PACK_ALIGNMENT
/* PixelType */
/* GL_UNSIGNED_BYTE */
#define CGL_UNSIGNED_SHORT_4_4_4_4 GL_UNSIGNED_SHORT_4_4_4_4
#define CGL_UNSIGNED_SHORT_5_5_5_1 GL_UNSIGNED_SHORT_5_5_5_1
#define CGL_UNSIGNED_SHORT_5_6_5 CGL_UNSIGNED_SHORT_5_6_5
/* ShadingModel */
#define CGL_FLAT GL_FLAT
#define CGL_SMOOTH GL_SMOOTH
/* StencilFunction */
/* GL_NEVER */
/* GL_LESS */
/* GL_EQUAL */
/* GL_LEQUAL */
/* GL_GREATER */
/* GL_NOTEQUAL */
/* GL_GEQUAL */
/* GL_ALWAYS */
/* StencilOp */
#define CGL_KEEP GL_KEEP
#define CGL_REPLACE GL_REPLACE
#define CGL_INCR GL_INCR
#define CGL_DECR GL_DECR
/* StringName */
#define CGL_VENDOR GL_VENDOR
#define CGL_RENDERER GL_RENDERER
#define CGL_VERSION GL_VERSION
#define CGL_EXTENSIONS GL_EXTENSIONS
/* TextureEnvMode */
#define CGL_MODULATE GL_MODULATE
#define CGL_DECAL GL_DECAL
#define CGL_ADD GL_ADD
/* GL_BLEND */
/* GL_REPLACE */
/* TextureEnvParameter */
#define CGL_TEXTURE_ENV_MODE GL_TEXTURE_ENV_MODE
#define CGL_TEXTURE_ENV_COLOR GL_TEXTURE_ENV_COLOR
/* TextureEnvTarget */
#define CGL_TEXTURE_ENV GL_TEXTURE_ENV
/* TextureMagFilter */
#define CGL_NEAREST GL_NEAREST
#define CGL_LINEAR GL_LINEAR
/* TextureMinFilter */
/* GL_NEAREST */
/* GL_LINEAR */
#define CGL_NEAREST_MIPMAP_NEAREST GL_NEAREST_MIPMAP_NEAREST
#define CGL_LINEAR_MIPMAP_NEAREST GL_LINEAR_MIPMAP_NEAREST
#define CGL_NEAREST_MIPMAP_LINEAR GL_NEAREST_MIPMAP_LINEAR
#define CGL_LINEAR_MIPMAP_LINEAR GL_LINEAR_MIPMAP_LINEAR
/* TextureParameterName */
#define CGL_TEXTURE_MAG_FILTER GL_TEXTURE_MAG_FILTER
#define CGL_TEXTURE_MIN_FILTER GL_TEXTURE_MIN_FILTER
#define CGL_TEXTURE_WRAP_S GL_TEXTURE_WRAP_S
#define CGL_TEXTURE_WRAP_T GL_TEXTURE_WRAP_T
#define CGL_GENERATE_MIPMAP GL_GENERATE_MIPMAP
#define CGL_ACTIVE_TEXTURE GL_ACTIVE_TEXTURE
#define CGL_CLIENT_ACTIVE_TEXTURE GL_CLIENT_ACTIVE_TEXTURE
/* TextureWrapMode */
#define CGL_REPEAT GL_REPEAT
#define CGL_CLAMP_TO_EDGE GL_CLAMP_TO_EDGE
/* PixelInternalFormat */
/* Buffer Objects */
#define CGL_ARRAY_BUFFER GL_ARRAY_BUFFER
#define CGL_ELEMENT_ARRAY_BUFFER GL_ELEMENT_ARRAY_BUFFER
#define CGL_ARRAY_BUFFER_BINDING GL_ARRAY_BUFFER_BINDING
#define CGL_ELEMENT_ARRAY_BUFFER_BINDING GL_ELEMENT_ARRAY_BUFFER_BINDING
#define CGL_VERTEX_ARRAY_BUFFER_BINDING GL_VERTEX_ARRAY_BUFFER_BINDING
#define CGL_NORMAL_ARRAY_BUFFER_BINDING GL_NORMAL_ARRAY_BUFFER_BINDING
#define CGL_COLOR_ARRAY_BUFFER_BINDING GL_COLOR_ARRAY_BUFFER_BINDING
#define CGL_TEXTURE_COORD_ARRAY_BUFFER_BINDING GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING
#define CGL_STATIC_DRAW GL_STATIC_DRAW
#define CGL_DYNAMIC_DRAW GL_DYNAMIC_DRAW
#define CGL_WRITE_ONLY GL_WRITE_ONLY
#define CGL_BUFFER_SIZE GL_BUFFER_SIZE
#define CGL_BUFFER_USAGE GL_BUFFER_USAGE
#define CGL_BUFFER_ACCESS GL_BUFFER_ACCESS
#define CGL_SUBTRACT GL_SUBTRACT
#define CGL_COMBINE GL_COMBINE
#define CGL_COMBINE_RGB GL_COMBINE_RGB
#define CGL_COMBINE_ALPHA GL_COMBINE_ALPHA
#define CGL_RGB_SCALE GL_RGB_SCALE
#define CGL_ADD_SIGNED GL_ADD_SIGNED
#define CGL_INTERPOLATE GL_INTERPOLATE
#define CGL_CONSTANT GL_CONSTANT
#define CGL_PRIMARY_COLOR GL_PRIMARY_COLOR
#define CGL_PREVIOUS GL_PREVIOUS
#define CGL_ALPHA_SCALE GL_ALPHA_SCALE
#define CGL_POINT_SPRITE_OES GL_POINT_SPRITE_OES
#define CGL_COORD_REPLACE_OES GL_COORD_REPLACE_OES
#define CGL_POINT_SIZE_ARRAY_OES GL_POINT_SIZE_ARRAY_OES
#define CGL_POINT_SIZE_ARRAY_TYPE_OES GL_POINT_SIZE_ARRAY_TYPE_OES
#define CGL_POINT_SIZE_ARRAY_STRIDE_OES GL_POINT_SIZE_ARRAY_STRIDE_OES
#define CGL_POINT_SIZE_ARRAY_POINTER_OES GL_POINT_SIZE_ARRAY_POINTER_OES
#define CGL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES
#define CGL_MAX_VERTEX_UNITS_OES GL_MAX_VERTEX_UNITS_OES
#define CGL_MAX_PALETTE_MATRICES_OES GL_MAX_PALETTE_MATRICES_OES
#define CGL_MATRIX_PALETTE_OES GL_MATRIX_PALETTE_OES
#define CGL_MATRIX_INDEX_ARRAY_OES GL_MATRIX_INDEX_ARRAY_OES
#define CGL_WEIGHT_ARRAY_OES GL_WEIGHT_ARRAY_OES
#define CGL_MATRIX_INDEX_ARRAY_SIZE_OES GL_MATRIX_INDEX_ARRAY_SIZE_OES
#define CGL_MATRIX_INDEX_ARRAY_TYPE_OES GL_MATRIX_INDEX_ARRAY_TYPE_OES
#define CGL_MATRIX_INDEX_ARRAY_STRIDE_OES GL_MATRIX_INDEX_ARRAY_STRIDE_OES
#define CGL_MATRIX_INDEX_ARRAY_POINTER_OES GL_MATRIX_INDEX_ARRAY_POINTER_OES
#define CGL_MATRIX_INDEX_ARRAY_BUFFER_BINDING_OES GL_MATRIX_INDEX_ARRAY_BUFFER_BINDING_OES
#define CGL_WEIGHT_ARRAY_SIZE_OES GL_WEIGHT_ARRAY_SIZE_OES
#define CGL_WEIGHT_ARRAY_TYPE_OES GL_WEIGHT_ARRAY_TYPE_OES
#define CGL_WEIGHT_ARRAY_STRIDE_OES GL_WEIGHT_ARRAY_STRIDE_OES
#define CGL_WEIGHT_ARRAY_POINTER_OES GL_WEIGHT_ARRAY_POINTER_OES
#define CGL_WEIGHT_ARRAY_BUFFER_BINDING_OES GL_WEIGHT_ARRAY_BUFFER_BINDING_OES
#define CGL_TEXTURE_CROP_RECT_OES GL_TEXTURE_CROP_RECT_OES
G_END_DECLS
#endif

68
gles/cogl.c
View File

@ -26,6 +26,54 @@
#include "cogl.h"
#include <GLES/gl.h>
#if COGL_DEBUG
struct token_string
{
GLuint Token;
const char *String;
};
static const struct token_string Errors[] = {
{ GL_NO_ERROR, "no error" },
{ GL_INVALID_ENUM, "invalid enumerant" },
{ GL_INVALID_VALUE, "invalid value" },
{ GL_INVALID_OPERATION, "invalid operation" },
{ GL_STACK_OVERFLOW, "stack overflow" },
{ GL_STACK_UNDERFLOW, "stack underflow" },
{ GL_OUT_OF_MEMORY, "out of memory" },
#ifdef GL_INVALID_FRAMEBUFFER_OPERATION_EXT
{ GL_INVALID_FRAMEBUFFER_OPERATION_EXT, "invalid framebuffer operation" },
#endif
{ ~0, NULL }
};
static const char*
error_string(GLenum errorCode)
{
int i;
for (i = 0; Errors[i].String; i++) {
if (Errors[i].Token == errorCode)
return Errors[i].String;
}
return "unknown";
}
#endif
#if COGL_DEBUG
#define GE(x...) { \
GLenum err; \
(x); \
while ((err = glGetError()) != GL_NO_ERROR) { \
fprintf(stderr, "glError: %s caught at %s:%u\n", \
(char *)error_string(err), \
__FILE__, __LINE__); \
} \
}
#else
#define GE(x) (x);
#endif
CoglFuncPtr
cogl_get_proc_address (const gchar* name)
{
@ -67,21 +115,21 @@ cogl_pop_matrix (void)
void
cogl_scaled (ClutterFixed x, ClutterFixed y)
{
glScalex (x, y, CFX_ONE);
GE( glScalex (x, y, CFX_ONE) );
}
void
cogl_translatex (ClutterFixed x, ClutterFixed y, ClutterFixed z)
{
glTranslatex (x, y, z);
GE( glTranslatex (x, y, z) );
}
void
cogl_translate (gint x, gint y, gint z)
{
glTranslatex (CLUTTER_INT_TO_FIXED(x),
CLUTTER_INT_TO_FIXED(y),
CLUTTER_INT_TO_FIXED(z));
GE( glTranslatex (CLUTTER_INT_TO_FIXED(x),
CLUTTER_INT_TO_FIXED(y),
CLUTTER_INT_TO_FIXED(z)) );
}
void
@ -90,14 +138,14 @@ cogl_rotatex (ClutterFixed angle,
ClutterFixed y,
ClutterFixed z)
{
glRotatex (angle,x,y,z);
GE( glRotatex (angle,x,y,z) );
}
void
cogl_rotate (gint angle, gint x, gint y, gint z)
{
glRotatef (CLUTTER_INT_TO_FIXED(angle),
CLUTTER_INT_TO_FIXED(x),
CLUTTER_INT_TO_FIXED(y),
CLUTTER_INT_TO_FIXED(z));
GE( glRotatef (CLUTTER_INT_TO_FIXED(angle),
CLUTTER_INT_TO_FIXED(x),
CLUTTER_INT_TO_FIXED(y),
CLUTTER_INT_TO_FIXED(z)) );
}