mutter/clutter/cogl/gles/cogl-context.h

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/*
* 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_CONTEXT_H
#define __COGL_CONTEXT_H
#include "cogl-primitives.h"
Bug 1172 - Disjoint paths and clip to path * clutter/cogl/cogl-path.h: * clutter/cogl/common/cogl-primitives.c: * clutter/cogl/common/cogl-primitives.h: * clutter/cogl/gl/cogl-primitives.c: * clutter/cogl/gles/cogl-primitives.c: Changed the semantics of cogl_path_move_to. Previously this always started a new path but now it instead starts a new disjoint sub path. The path isn't cleared until you call either cogl_path_stroke, cogl_path_fill or cogl_path_new. There are also cogl_path_stroke_preserve and cogl_path_fill_preserve functions. * clutter/cogl/gl/cogl-context.c: * clutter/cogl/gl/cogl-context.h: * clutter/cogl/gles/cogl-context.c: * clutter/cogl/gles/cogl-context.h: Convert the path nodes array to a GArray. * clutter/cogl/gl/cogl-texture.c: * clutter/cogl/gles/cogl-texture.c: Call cogl_clip_ensure * clutter/cogl/common/cogl-clip-stack.c: * clutter/cogl/common/cogl-clip-stack.h: Simplified the clip stack code quite a bit to make it more maintainable. Previously whenever you added a new clip it would go through a separate route to immediately intersect with the current clip and when you removed it again it would immediately rebuild the entire clip. Now when you add or remove a clip it doesn't do anything immediately but just sets a dirty flag instead. * clutter/cogl/gl/cogl.c: * clutter/cogl/gles/cogl.c: Taken away the code to intersect stencil clips when there is exactly one stencil bit. It won't work with path clips and I don't know of any platform that doesn't have eight or zero stencil bits. It needs at least three bits to intersect a path with an existing clip. cogl_features_init now just decides you don't have a stencil buffer at all if you have less than three bits. * clutter/cogl/cogl.h.in: New functions and documentation. * tests/interactive/test-clip.c: Replaced with a different test that lets you add and remove clips. The three different mouse buttons add clips in different shapes. This makes it easier to test multiple levels of clipping. * tests/interactive/test-cogl-primitives.c: Use cogl_path_stroke_preserve when using the same path again. * doc/reference/cogl/cogl-sections.txt: Document the new functions.
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#include "cogl-clip-stack.h"
#include "cogl-matrix-stack.h"
#include "cogl-current-matrix.h"
GLES 2 backend * clutter/eglx/clutter-stage-egl.h: * clutter/eglx/clutter-egl-headers.h: * clutter/eglx/clutter-backend-egl.h: * clutter/eglx/Makefile.am: Include the GLES and EGL headers via clutter-egl-headers.h so that the right version can be used depending on whether the GLES 2 wrapper is being used. * configure.ac: Added an automake conditional for whether the GLES 2 wrapper should be used. * clutter/eglx/clutter-stage-egl.c (clutter_stage_egl_realize): Remove the call to glGetIntegerv to get the max texture size. It was being called before the GL context was bound so it didn't work anyway and it was causing trouble for the GLES 2 simulator. * clutter/cogl/gles/stringify.sh: Shell script to convert the shaders into a C string. * clutter/cogl/gles/cogl-gles2-wrapper.h: * clutter/cogl/gles/cogl-gles2-wrapper.c: Wrappers for most of the missing GL functions in GLES 2. * clutter/cogl/gles/cogl-fixed-fragment-shader.glsl: * clutter/cogl/gles/cogl-fixed-vertex-shader.glsl: New shaders for GLES 2 * clutter/cogl/gles/cogl-defines.h.in: Use the @CLUTTER_GL_HEADER@ macro instead of always using the GLES 1 header. * clutter/cogl/gles/cogl-context.h (CoglContext): Include a field for the state of the GLES 2 wrapper. * clutter/cogl/gles/cogl-texture.c: * clutter/cogl/gles/cogl-primitives.c: * clutter/cogl/gles/cogl.c: Use wrapped versions of the GL functions where neccessary. * clutter/cogl/gles/Makefile.am: Add sources for the GLES 2 wrapper and an extra build step to put the GLSL files into a C string whenever the files change.
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#include "cogl-gles2-wrapper.h"
typedef struct
{
GLfloat v[3];
GLfloat t[2];
GLubyte c[4];
} CoglTextureGLVertex;
typedef struct
{
/* Features cache */
CoglFeatureFlags feature_flags;
gboolean features_cached;
/* Enable cache */
gulong enable_flags;
guint8 color_alpha;
gboolean enable_backface_culling;
gboolean indirect;
/* Client-side matrix stack or NULL if none */
CoglMatrixMode matrix_mode;
CoglMatrixStack *modelview_stack;
/* Cache of inverse projection matrix */
float inverse_projection[16];
/* Materials */
GArray *material_handles;
GArray *material_layer_handles;
CoglHandle default_material;
CoglHandle source_material;
/* Textures */
GArray *texture_handles;
CoglHandle default_gl_texture_2d_tex;
CoglHandle default_gl_texture_rect_tex;
CoglHandle texture_download_material;
/* Batching geometry... */
/* We journal the texture rectangles we want to submit to OpenGL so
* we have an oppertunity to optimise the final order so that we
* can batch things together. */
GArray *journal;
GArray *logged_vertices;
GArray *static_indices;
GArray *polygon_vertices;
/* Some simple caching, to minimize state changes... */
CoglHandle current_material;
gulong current_material_flags;
GArray *current_layers;
guint n_texcoord_arrays_enabled;
/* Framebuffer objects */
GArray *fbo_handles;
CoglBufferTarget draw_buffer;
GLES 2 backend * clutter/eglx/clutter-stage-egl.h: * clutter/eglx/clutter-egl-headers.h: * clutter/eglx/clutter-backend-egl.h: * clutter/eglx/Makefile.am: Include the GLES and EGL headers via clutter-egl-headers.h so that the right version can be used depending on whether the GLES 2 wrapper is being used. * configure.ac: Added an automake conditional for whether the GLES 2 wrapper should be used. * clutter/eglx/clutter-stage-egl.c (clutter_stage_egl_realize): Remove the call to glGetIntegerv to get the max texture size. It was being called before the GL context was bound so it didn't work anyway and it was causing trouble for the GLES 2 simulator. * clutter/cogl/gles/stringify.sh: Shell script to convert the shaders into a C string. * clutter/cogl/gles/cogl-gles2-wrapper.h: * clutter/cogl/gles/cogl-gles2-wrapper.c: Wrappers for most of the missing GL functions in GLES 2. * clutter/cogl/gles/cogl-fixed-fragment-shader.glsl: * clutter/cogl/gles/cogl-fixed-vertex-shader.glsl: New shaders for GLES 2 * clutter/cogl/gles/cogl-defines.h.in: Use the @CLUTTER_GL_HEADER@ macro instead of always using the GLES 1 header. * clutter/cogl/gles/cogl-context.h (CoglContext): Include a field for the state of the GLES 2 wrapper. * clutter/cogl/gles/cogl-texture.c: * clutter/cogl/gles/cogl-primitives.c: * clutter/cogl/gles/cogl.c: Use wrapped versions of the GL functions where neccessary. * clutter/cogl/gles/Makefile.am: Add sources for the GLES 2 wrapper and an extra build step to put the GLSL files into a C string whenever the files change.
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/* Shaders */
GArray *shader_handles;
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/* Programs */
GArray *program_handles;
Bug 1172 - Disjoint paths and clip to path * clutter/cogl/cogl-path.h: * clutter/cogl/common/cogl-primitives.c: * clutter/cogl/common/cogl-primitives.h: * clutter/cogl/gl/cogl-primitives.c: * clutter/cogl/gles/cogl-primitives.c: Changed the semantics of cogl_path_move_to. Previously this always started a new path but now it instead starts a new disjoint sub path. The path isn't cleared until you call either cogl_path_stroke, cogl_path_fill or cogl_path_new. There are also cogl_path_stroke_preserve and cogl_path_fill_preserve functions. * clutter/cogl/gl/cogl-context.c: * clutter/cogl/gl/cogl-context.h: * clutter/cogl/gles/cogl-context.c: * clutter/cogl/gles/cogl-context.h: Convert the path nodes array to a GArray. * clutter/cogl/gl/cogl-texture.c: * clutter/cogl/gles/cogl-texture.c: Call cogl_clip_ensure * clutter/cogl/common/cogl-clip-stack.c: * clutter/cogl/common/cogl-clip-stack.h: Simplified the clip stack code quite a bit to make it more maintainable. Previously whenever you added a new clip it would go through a separate route to immediately intersect with the current clip and when you removed it again it would immediately rebuild the entire clip. Now when you add or remove a clip it doesn't do anything immediately but just sets a dirty flag instead. * clutter/cogl/gl/cogl.c: * clutter/cogl/gles/cogl.c: Taken away the code to intersect stencil clips when there is exactly one stencil bit. It won't work with path clips and I don't know of any platform that doesn't have eight or zero stencil bits. It needs at least three bits to intersect a path with an existing clip. cogl_features_init now just decides you don't have a stencil buffer at all if you have less than three bits. * clutter/cogl/cogl.h.in: New functions and documentation. * tests/interactive/test-clip.c: Replaced with a different test that lets you add and remove clips. The three different mouse buttons add clips in different shapes. This makes it easier to test multiple levels of clipping. * tests/interactive/test-cogl-primitives.c: Use cogl_path_stroke_preserve when using the same path again. * doc/reference/cogl/cogl-sections.txt: Document the new functions.
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/* Clip stack */
CoglClipStackState clip;
/* Vertex buffers */
GArray *vertex_buffer_handles;
/* Primitives */
floatVec2 path_start;
floatVec2 path_pen;
GArray *path_nodes;
guint last_path;
floatVec2 path_nodes_min;
floatVec2 path_nodes_max;
CoglHandle stencil_material;
Bug 1172 - Disjoint paths and clip to path * clutter/cogl/cogl-path.h: * clutter/cogl/common/cogl-primitives.c: * clutter/cogl/common/cogl-primitives.h: * clutter/cogl/gl/cogl-primitives.c: * clutter/cogl/gles/cogl-primitives.c: Changed the semantics of cogl_path_move_to. Previously this always started a new path but now it instead starts a new disjoint sub path. The path isn't cleared until you call either cogl_path_stroke, cogl_path_fill or cogl_path_new. There are also cogl_path_stroke_preserve and cogl_path_fill_preserve functions. * clutter/cogl/gl/cogl-context.c: * clutter/cogl/gl/cogl-context.h: * clutter/cogl/gles/cogl-context.c: * clutter/cogl/gles/cogl-context.h: Convert the path nodes array to a GArray. * clutter/cogl/gl/cogl-texture.c: * clutter/cogl/gles/cogl-texture.c: Call cogl_clip_ensure * clutter/cogl/common/cogl-clip-stack.c: * clutter/cogl/common/cogl-clip-stack.h: Simplified the clip stack code quite a bit to make it more maintainable. Previously whenever you added a new clip it would go through a separate route to immediately intersect with the current clip and when you removed it again it would immediately rebuild the entire clip. Now when you add or remove a clip it doesn't do anything immediately but just sets a dirty flag instead. * clutter/cogl/gl/cogl.c: * clutter/cogl/gles/cogl.c: Taken away the code to intersect stencil clips when there is exactly one stencil bit. It won't work with path clips and I don't know of any platform that doesn't have eight or zero stencil bits. It needs at least three bits to intersect a path with an existing clip. cogl_features_init now just decides you don't have a stencil buffer at all if you have less than three bits. * clutter/cogl/cogl.h.in: New functions and documentation. * tests/interactive/test-clip.c: Replaced with a different test that lets you add and remove clips. The three different mouse buttons add clips in different shapes. This makes it easier to test multiple levels of clipping. * tests/interactive/test-cogl-primitives.c: Use cogl_path_stroke_preserve when using the same path again. * doc/reference/cogl/cogl-sections.txt: Document the new functions.
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GLES 2 backend * clutter/eglx/clutter-stage-egl.h: * clutter/eglx/clutter-egl-headers.h: * clutter/eglx/clutter-backend-egl.h: * clutter/eglx/Makefile.am: Include the GLES and EGL headers via clutter-egl-headers.h so that the right version can be used depending on whether the GLES 2 wrapper is being used. * configure.ac: Added an automake conditional for whether the GLES 2 wrapper should be used. * clutter/eglx/clutter-stage-egl.c (clutter_stage_egl_realize): Remove the call to glGetIntegerv to get the max texture size. It was being called before the GL context was bound so it didn't work anyway and it was causing trouble for the GLES 2 simulator. * clutter/cogl/gles/stringify.sh: Shell script to convert the shaders into a C string. * clutter/cogl/gles/cogl-gles2-wrapper.h: * clutter/cogl/gles/cogl-gles2-wrapper.c: Wrappers for most of the missing GL functions in GLES 2. * clutter/cogl/gles/cogl-fixed-fragment-shader.glsl: * clutter/cogl/gles/cogl-fixed-vertex-shader.glsl: New shaders for GLES 2 * clutter/cogl/gles/cogl-defines.h.in: Use the @CLUTTER_GL_HEADER@ macro instead of always using the GLES 1 header. * clutter/cogl/gles/cogl-context.h (CoglContext): Include a field for the state of the GLES 2 wrapper. * clutter/cogl/gles/cogl-texture.c: * clutter/cogl/gles/cogl-primitives.c: * clutter/cogl/gles/cogl.c: Use wrapped versions of the GL functions where neccessary. * clutter/cogl/gles/Makefile.am: Add sources for the GLES 2 wrapper and an extra build step to put the GLSL files into a C string whenever the files change.
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#ifdef HAVE_COGL_GLES2
CoglGles2Wrapper gles2;
/* Viewport store for FBOs. Needed because glPushAttrib() isn't
supported */
GLint viewport_store[4];
GLES 2 backend * clutter/eglx/clutter-stage-egl.h: * clutter/eglx/clutter-egl-headers.h: * clutter/eglx/clutter-backend-egl.h: * clutter/eglx/Makefile.am: Include the GLES and EGL headers via clutter-egl-headers.h so that the right version can be used depending on whether the GLES 2 wrapper is being used. * configure.ac: Added an automake conditional for whether the GLES 2 wrapper should be used. * clutter/eglx/clutter-stage-egl.c (clutter_stage_egl_realize): Remove the call to glGetIntegerv to get the max texture size. It was being called before the GL context was bound so it didn't work anyway and it was causing trouble for the GLES 2 simulator. * clutter/cogl/gles/stringify.sh: Shell script to convert the shaders into a C string. * clutter/cogl/gles/cogl-gles2-wrapper.h: * clutter/cogl/gles/cogl-gles2-wrapper.c: Wrappers for most of the missing GL functions in GLES 2. * clutter/cogl/gles/cogl-fixed-fragment-shader.glsl: * clutter/cogl/gles/cogl-fixed-vertex-shader.glsl: New shaders for GLES 2 * clutter/cogl/gles/cogl-defines.h.in: Use the @CLUTTER_GL_HEADER@ macro instead of always using the GLES 1 header. * clutter/cogl/gles/cogl-context.h (CoglContext): Include a field for the state of the GLES 2 wrapper. * clutter/cogl/gles/cogl-texture.c: * clutter/cogl/gles/cogl-primitives.c: * clutter/cogl/gles/cogl.c: Use wrapped versions of the GL functions where neccessary. * clutter/cogl/gles/Makefile.am: Add sources for the GLES 2 wrapper and an extra build step to put the GLSL files into a C string whenever the files change.
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#endif
} CoglContext;
CoglContext *
_cogl_context_get_default ();
/* Obtains the context and returns retval if NULL */
#define _COGL_GET_CONTEXT(ctxvar, retval) \
CoglContext *ctxvar = _cogl_context_get_default (); \
if (ctxvar == NULL) return retval;
#define NO_RETVAL
#endif /* __COGL_CONTEXT_H */