986ba3aa79
The EGL winsys had a special case code path when trying to create a context where if it failed it would try again except without requesting a stencil buffer. Historically this code path was to allow Clutter to run on PowerVR MBX hardware which doesn't support a stencil buffer. It doesn't really make sense to keep this workaround in Cogl as it would leave Cogl in a state where the clip stack doesn't work without providing any feedback to the developer. If we need to support running on MBX like hardware - probably not very likely these days - then we should provide developer control over the stencil buffer so the equivalent workaround could be implemented on top of Cogl. Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit a7c391a985e82707b17f2fb1105de5d37822a390)
164 lines
4.2 KiB
C
164 lines
4.2 KiB
C
/*
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* Cogl
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*
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* An object oriented GL/GLES Abstraction/Utility Layer
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*
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* Copyright (C) 2011 Intel Corporation.
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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, see <http://www.gnu.org/licenses/>.
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*
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*
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*/
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#ifndef __COGL_WINSYS_EGL_PRIVATE_H
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#define __COGL_WINSYS_EGL_PRIVATE_H
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#include "cogl-defines.h"
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#include "cogl-winsys-private.h"
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#include "cogl-context.h"
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#include "cogl-context-private.h"
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#include "cogl-framebuffer-private.h"
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typedef struct _CoglWinsysEGLVtable
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{
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CoglBool
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(* display_setup) (CoglDisplay *display,
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CoglError **error);
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void
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(* display_destroy) (CoglDisplay *display);
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CoglBool
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(* context_created) (CoglDisplay *display,
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CoglError **error);
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void
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(* cleanup_context) (CoglDisplay *display);
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CoglBool
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(* context_init) (CoglContext *context, CoglError **error);
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void
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(* context_deinit) (CoglContext *context);
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CoglBool
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(* onscreen_init) (CoglOnscreen *onscreen,
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EGLConfig config,
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CoglError **error);
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void
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(* onscreen_deinit) (CoglOnscreen *onscreen);
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int
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(* add_config_attributes) (CoglDisplay *display,
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CoglFramebufferConfig *config,
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EGLint *attributes);
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} CoglWinsysEGLVtable;
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typedef enum _CoglEGLWinsysFeature
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{
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COGL_EGL_WINSYS_FEATURE_SWAP_REGION =1L<<0,
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COGL_EGL_WINSYS_FEATURE_EGL_IMAGE_FROM_X11_PIXMAP =1L<<1,
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COGL_EGL_WINSYS_FEATURE_EGL_IMAGE_FROM_WAYLAND_BUFFER =1L<<2
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} CoglEGLWinsysFeature;
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typedef struct _CoglRendererEGL
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{
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CoglEGLWinsysFeature private_features;
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EGLDisplay edpy;
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EGLint egl_version_major;
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EGLint egl_version_minor;
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/* Data specific to the EGL platform */
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void *platform;
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/* vtable for platform specific parts */
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const CoglWinsysEGLVtable *platform_vtable;
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/* Function pointers for EGL specific extensions */
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#define COGL_WINSYS_FEATURE_BEGIN(a, b, c, d)
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#define COGL_WINSYS_FEATURE_FUNCTION(ret, name, args) \
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ret (APIENTRY * pf_ ## name) args;
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#define COGL_WINSYS_FEATURE_END()
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#include "cogl-winsys-egl-feature-functions.h"
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#undef COGL_WINSYS_FEATURE_BEGIN
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#undef COGL_WINSYS_FEATURE_FUNCTION
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#undef COGL_WINSYS_FEATURE_END
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} CoglRendererEGL;
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typedef struct _CoglDisplayEGL
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{
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EGLContext egl_context;
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EGLSurface dummy_surface;
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EGLSurface egl_surface;
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EGLConfig egl_config;
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CoglBool found_egl_config;
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EGLSurface current_read_surface;
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EGLSurface current_draw_surface;
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EGLContext current_context;
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CoglBool pending_resize_notify;
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/* Platform specific display data */
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void *platform;
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} CoglDisplayEGL;
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typedef struct _CoglContextEGL
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{
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EGLSurface saved_draw_surface;
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EGLSurface saved_read_surface;
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} CoglContextEGL;
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typedef struct _CoglOnscreenEGL
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{
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EGLSurface egl_surface;
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CoglBool pending_resize_notify;
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/* Platform specific data */
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void *platform;
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} CoglOnscreenEGL;
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const CoglWinsysVtable *
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_cogl_winsys_egl_get_vtable (void);
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EGLBoolean
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_cogl_winsys_egl_make_current (CoglDisplay *display,
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EGLSurface draw,
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EGLSurface read,
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EGLContext context);
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#ifdef EGL_KHR_image_base
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EGLImageKHR
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_cogl_egl_create_image (CoglContext *ctx,
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EGLenum target,
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EGLClientBuffer buffer,
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const EGLint *attribs);
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void
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_cogl_egl_destroy_image (CoglContext *ctx,
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EGLImageKHR image);
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#endif
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CoglBool
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_cogl_winsys_egl_renderer_connect_common (CoglRenderer *renderer,
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CoglError **error);
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#endif /* __COGL_WINSYS_EGL_PRIVATE_H */
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