791324cc06
The rationale here is, that this line would create an instance of gl_renderer_interface in every compilation unit that included gl-renderer.h. This is not necessary, and it can actually be harmful by masking the real exported gl_renderer_interface symbol, if you added another compilation unit to gl-renderer.so, causing a runtime failure in loading it. gl-renderer.c already creates the exported symbol.
104 lines
3.3 KiB
C
104 lines
3.3 KiB
C
/*
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* Copyright © 2012 John Kåre Alsaker
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*
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* Permission to use, copy, modify, distribute, and sell this software and
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* its documentation for any purpose is hereby granted without fee, provided
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* that the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of the copyright holders not be used in
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* advertising or publicity pertaining to distribution of the software
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* without specific, written prior permission. The copyright holders make
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* no representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
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* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
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* CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "config.h"
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#include "compositor.h"
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#ifdef ENABLE_EGL
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#include <EGL/egl.h>
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#else
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typedef int EGLint;
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typedef void *EGLDisplay;
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typedef void *EGLSurface;
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typedef intptr_t EGLNativeDisplayType;
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typedef intptr_t EGLNativeWindowType;
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#define EGL_DEFAULT_DISPLAY ((EGLNativeDisplayType)0)
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#endif
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enum gl_renderer_border_side {
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GL_RENDERER_BORDER_TOP = 0,
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GL_RENDERER_BORDER_LEFT = 1,
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GL_RENDERER_BORDER_RIGHT = 2,
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GL_RENDERER_BORDER_BOTTOM = 3,
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};
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struct gl_renderer_interface {
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const EGLint *opaque_attribs;
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const EGLint *alpha_attribs;
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int (*create)(struct weston_compositor *ec,
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EGLNativeDisplayType display,
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const EGLint *attribs,
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const EGLint *visual_id);
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EGLDisplay (*display)(struct weston_compositor *ec);
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int (*output_create)(struct weston_output *output,
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EGLNativeWindowType window,
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const EGLint *attribs,
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const EGLint *visual_id);
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void (*output_destroy)(struct weston_output *output);
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EGLSurface (*output_surface)(struct weston_output *output);
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/* Sets the output border.
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*
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* The side specifies the side for which we are setting the border.
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* The width and height are the width and height of the border.
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* The tex_width patemeter specifies the width of the actual
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* texture; this may be larger than width if the data is not
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* tightly packed.
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*
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* The top and bottom textures will extend over the sides to the
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* full width of the bordered window. The right and left edges,
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* however, will extend only to the top and bottom of the
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* compositor surface. This is demonstrated by the picture below:
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*
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* +-----------------------+
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* | TOP |
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* +-+-------------------+-+
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* | | | |
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* |L| |R|
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* |E| |I|
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* |F| |G|
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* |T| |H|
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* | | |T|
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* | | | |
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* +-+-------------------+-+
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* | BOTTOM |
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* +-----------------------+
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*/
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void (*output_set_border)(struct weston_output *output,
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enum gl_renderer_border_side side,
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int32_t width, int32_t height,
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int32_t tex_width, unsigned char *data);
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void (*print_egl_error_state)(void);
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};
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