brl/mutter
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
f63b4597f7
mutter/cogl/cogl-display-private.h

57 lines
1.4 KiB
C
Raw Normal View History

Adds renderer,display,onscreen-template and swap-chain stubs As part of the process of splitting Cogl out as a standalone graphics API we need to introduce some API concepts that will allow us to initialize a new CoglContext when Clutter isn't there to handle that for us... The new objects roughly in the order that they are (optionally) involved in constructing a context are: CoglRenderer, CoglOnscreenTemplate, CoglSwapChain and CoglDisplay. Conceptually a CoglRenderer represents a means for rendering. Cogl supports rendering via OpenGL or OpenGL ES 1/2.0 and those APIs are accessed through a number of different windowing APIs such as GLX, EGL, SDL or WGL and more. Potentially in the future Cogl could render using D3D or even by using libdrm and directly banging the hardware. All these choices are wrapped up in the configuration of a CoglRenderer. Conceptually a CoglDisplay represents a display pipeline for a renderer. Although Cogl doesn't aim to provide a detailed abstraction of display hardware, on some platforms we can give control over multiple display planes (On TV platforms for instance video content may be on one plane and 3D would be on another so a CoglDisplay lets you select the plane up-front.) Another aspect of CoglDisplay is that it lets us negotiate a display pipeline that best supports the type of CoglOnscreen framebuffers we are planning to create. For instance if you want transparent CoglOnscreen framebuffers then we have to be sure the display pipeline wont discard the alpha component of your framebuffers. Or if you want to use double/tripple buffering that requires support from the display pipeline. CoglOnscreenTemplate and CoglSwapChain are how we describe our default CoglOnscreen framebuffer configuration which can affect the configuration of the display pipeline. The default/simple way we expect most CoglContexts to be constructed will be via something like: if (!cogl_context_new (NULL, &error)) g_error ("Failed to construct a CoglContext: %s", error->message); Where that NULL is for an optional "display" parameter and NULL says to Cogl "please just try to do something sensible". If you want some more control though you can manually construct a CoglDisplay something like: display = cogl_display_new (NULL, NULL); cogl_gdl_display_set_plane (display, plane); if (!cogl_display_setup (display, &error)) g_error ("Failed to setup a CoglDisplay: %s", error->message); And in a similar fashion to cogl_context_new() you can optionally pass a NULL "renderer" and/or a NULL "onscreen template" so Cogl will try to just do something sensible. If you need to change the CoglOnscreen defaults you can provide a template something like: chain = cogl_swap_chain_new (); cogl_swap_chain_set_has_alpha (chain, TRUE); cogl_swap_chain_set_length (chain, 3); onscreen_template = cogl_onscreen_template_new (chain); cogl_onscreen_template_set_pixel_format (onscreen_template, COGL_PIXEL_FORMAT_RGB565); display = cogl_display_new (NULL, onscreen_template); if (!cogl_display_setup (display, &error)) g_error ("Failed to setup a CoglDisplay: %s", error->message);
2011-02-25 17:06:50 +00:00
/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2011 Intel Corporation.
*
* 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, see
* <http://www.gnu.org/licenses/>.
*
*
*/
#ifndef __COGL_DISPLAY_PRIVATE_H
#define __COGL_DISPLAY_PRIVATE_H
#include "cogl-object-private.h"
EGL: Updates GDL platform support The GDL API is used for example on intel ce4100 (aka Sodaville) based systems as a way to allocate memory that can be composited using the platforms overlay hardware. This updates the Cogl EGL winsys and the support in Clutter so we can continue to support these platforms.
2011-03-04 12:50:39 +00:00
#include "cogl-display.h"
Adds renderer,display,onscreen-template and swap-chain stubs As part of the process of splitting Cogl out as a standalone graphics API we need to introduce some API concepts that will allow us to initialize a new CoglContext when Clutter isn't there to handle that for us... The new objects roughly in the order that they are (optionally) involved in constructing a context are: CoglRenderer, CoglOnscreenTemplate, CoglSwapChain and CoglDisplay. Conceptually a CoglRenderer represents a means for rendering. Cogl supports rendering via OpenGL or OpenGL ES 1/2.0 and those APIs are accessed through a number of different windowing APIs such as GLX, EGL, SDL or WGL and more. Potentially in the future Cogl could render using D3D or even by using libdrm and directly banging the hardware. All these choices are wrapped up in the configuration of a CoglRenderer. Conceptually a CoglDisplay represents a display pipeline for a renderer. Although Cogl doesn't aim to provide a detailed abstraction of display hardware, on some platforms we can give control over multiple display planes (On TV platforms for instance video content may be on one plane and 3D would be on another so a CoglDisplay lets you select the plane up-front.) Another aspect of CoglDisplay is that it lets us negotiate a display pipeline that best supports the type of CoglOnscreen framebuffers we are planning to create. For instance if you want transparent CoglOnscreen framebuffers then we have to be sure the display pipeline wont discard the alpha component of your framebuffers. Or if you want to use double/tripple buffering that requires support from the display pipeline. CoglOnscreenTemplate and CoglSwapChain are how we describe our default CoglOnscreen framebuffer configuration which can affect the configuration of the display pipeline. The default/simple way we expect most CoglContexts to be constructed will be via something like: if (!cogl_context_new (NULL, &error)) g_error ("Failed to construct a CoglContext: %s", error->message); Where that NULL is for an optional "display" parameter and NULL says to Cogl "please just try to do something sensible". If you want some more control though you can manually construct a CoglDisplay something like: display = cogl_display_new (NULL, NULL); cogl_gdl_display_set_plane (display, plane); if (!cogl_display_setup (display, &error)) g_error ("Failed to setup a CoglDisplay: %s", error->message); And in a similar fashion to cogl_context_new() you can optionally pass a NULL "renderer" and/or a NULL "onscreen template" so Cogl will try to just do something sensible. If you need to change the CoglOnscreen defaults you can provide a template something like: chain = cogl_swap_chain_new (); cogl_swap_chain_set_has_alpha (chain, TRUE); cogl_swap_chain_set_length (chain, 3); onscreen_template = cogl_onscreen_template_new (chain); cogl_onscreen_template_set_pixel_format (onscreen_template, COGL_PIXEL_FORMAT_RGB565); display = cogl_display_new (NULL, onscreen_template); if (!cogl_display_setup (display, &error)) g_error ("Failed to setup a CoglDisplay: %s", error->message);
2011-02-25 17:06:50 +00:00
#include "cogl-renderer.h"
#include "cogl-onscreen-template.h"
Dynamically load the GL or GLES library The GL or GLES library is now dynamically loaded by the CoglRenderer so that it can choose between GL, GLES1 and GLES2 at runtime. The library is loaded by the renderer because it needs to be done before calling eglInitialize. There is a new environment variable called COGL_DRIVER to choose between gl, gles1 or gles2. The #ifdefs for HAVE_COGL_GL, HAVE_COGL_GLES and HAVE_COGL_GLES2 have been changed so that they don't assume the ifdefs are mutually exclusive. They haven't been removed entirely so that it's possible to compile the GLES backends without the the enums from the GL headers. When using GLX the winsys additionally dynamically loads libGL because that also contains the GLX API. It can't be linked in directly because that would probably conflict with the GLES API if the EGL is selected. When compiling with EGL support the library links directly to libEGL because it doesn't contain any GL API so it shouldn't have any conflicts. When building for WGL or OSX Cogl still directly links against the GL API so there is a #define in config.h so that Cogl won't try to dlopen the library. Cogl-pango previously had a #ifdef to detect when the GL backend is used so that it can sneakily pass GL_QUADS to cogl_vertex_buffer_draw. This is now changed so that it queries the CoglContext for the backend. However to get this to work Cogl now needs to export the _cogl_context_get_default symbol and cogl-pango needs some extra -I flags to so that it can include cogl-context-private.h
2011-07-07 19:44:56 +00:00
#include "cogl-internal.h"
Don't use #if with defines that are either defined or not COGL_HAS_* and COGL_ENABLE_DEBUG are either defined in config.h or not. So let's test against this, not against their truth value, this allow us to use -Wundef to catch undefined macros in preprocessor directives. (cherry picked from commit 73b62832f24711073b0876a6c0f5c61727842c1c)
2012-12-29 02:00:00 +00:00
#ifdef COGL_HAS_WAYLAND_EGL_SERVER_SUPPORT
Adds _cogl_wayland_texture_2d_new_from_buffer API This adds internal API to be able to wrap a wayland buffer as a CoglTexture2D. There is a --enable-wayland-egl-server option to decide if Cogl should support this feature and potentially any EGL based winsys could support this through the EGL_KHR_image_base and EGL_WL_bind_display extensions.
2011-05-25 00:37:56 +00:00
#include <wayland-server.h>
#endif
Adds renderer,display,onscreen-template and swap-chain stubs As part of the process of splitting Cogl out as a standalone graphics API we need to introduce some API concepts that will allow us to initialize a new CoglContext when Clutter isn't there to handle that for us... The new objects roughly in the order that they are (optionally) involved in constructing a context are: CoglRenderer, CoglOnscreenTemplate, CoglSwapChain and CoglDisplay. Conceptually a CoglRenderer represents a means for rendering. Cogl supports rendering via OpenGL or OpenGL ES 1/2.0 and those APIs are accessed through a number of different windowing APIs such as GLX, EGL, SDL or WGL and more. Potentially in the future Cogl could render using D3D or even by using libdrm and directly banging the hardware. All these choices are wrapped up in the configuration of a CoglRenderer. Conceptually a CoglDisplay represents a display pipeline for a renderer. Although Cogl doesn't aim to provide a detailed abstraction of display hardware, on some platforms we can give control over multiple display planes (On TV platforms for instance video content may be on one plane and 3D would be on another so a CoglDisplay lets you select the plane up-front.) Another aspect of CoglDisplay is that it lets us negotiate a display pipeline that best supports the type of CoglOnscreen framebuffers we are planning to create. For instance if you want transparent CoglOnscreen framebuffers then we have to be sure the display pipeline wont discard the alpha component of your framebuffers. Or if you want to use double/tripple buffering that requires support from the display pipeline. CoglOnscreenTemplate and CoglSwapChain are how we describe our default CoglOnscreen framebuffer configuration which can affect the configuration of the display pipeline. The default/simple way we expect most CoglContexts to be constructed will be via something like: if (!cogl_context_new (NULL, &error)) g_error ("Failed to construct a CoglContext: %s", error->message); Where that NULL is for an optional "display" parameter and NULL says to Cogl "please just try to do something sensible". If you want some more control though you can manually construct a CoglDisplay something like: display = cogl_display_new (NULL, NULL); cogl_gdl_display_set_plane (display, plane); if (!cogl_display_setup (display, &error)) g_error ("Failed to setup a CoglDisplay: %s", error->message); And in a similar fashion to cogl_context_new() you can optionally pass a NULL "renderer" and/or a NULL "onscreen template" so Cogl will try to just do something sensible. If you need to change the CoglOnscreen defaults you can provide a template something like: chain = cogl_swap_chain_new (); cogl_swap_chain_set_has_alpha (chain, TRUE); cogl_swap_chain_set_length (chain, 3); onscreen_template = cogl_onscreen_template_new (chain); cogl_onscreen_template_set_pixel_format (onscreen_template, COGL_PIXEL_FORMAT_RGB565); display = cogl_display_new (NULL, onscreen_template); if (!cogl_display_setup (display, &error)) g_error ("Failed to setup a CoglDisplay: %s", error->message);
2011-02-25 17:06:50 +00:00
struct _CoglDisplay
{
CoglObject _parent;
Switch use of primitive glib types to c99 equivalents The coding style has for a long time said to avoid using redundant glib data types such as gint or gchar etc because we feel that they make the code look unnecessarily foreign to developers coming from outside of the Gnome developer community. Note: When we tried to find the historical rationale for the types we just found that they were apparently only added for consistent syntax highlighting which didn't seem that compelling. Up until now we have been continuing to use some of the platform specific type such as gint{8,16,32,64} and gsize but this patch switches us over to using the standard c99 equivalents instead so we can further ensure that our code looks familiar to the widest range of C developers who might potentially contribute to Cogl. So instead of using the gint{8,16,32,64} and guint{8,16,32,64} types this switches all Cogl code to instead use the int{8,16,32,64}_t and uint{8,16,32,64}_t c99 types instead. Instead of gsize we now use size_t For now we are not going to use the c99 _Bool type and instead we have introduced a new CoglBool type to use instead of gboolean. Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit 5967dad2400d32ca6319cef6cb572e81bf2c15f0)
2012-04-16 20:56:40 +00:00
CoglBool setup;
Adds renderer,display,onscreen-template and swap-chain stubs As part of the process of splitting Cogl out as a standalone graphics API we need to introduce some API concepts that will allow us to initialize a new CoglContext when Clutter isn't there to handle that for us... The new objects roughly in the order that they are (optionally) involved in constructing a context are: CoglRenderer, CoglOnscreenTemplate, CoglSwapChain and CoglDisplay. Conceptually a CoglRenderer represents a means for rendering. Cogl supports rendering via OpenGL or OpenGL ES 1/2.0 and those APIs are accessed through a number of different windowing APIs such as GLX, EGL, SDL or WGL and more. Potentially in the future Cogl could render using D3D or even by using libdrm and directly banging the hardware. All these choices are wrapped up in the configuration of a CoglRenderer. Conceptually a CoglDisplay represents a display pipeline for a renderer. Although Cogl doesn't aim to provide a detailed abstraction of display hardware, on some platforms we can give control over multiple display planes (On TV platforms for instance video content may be on one plane and 3D would be on another so a CoglDisplay lets you select the plane up-front.) Another aspect of CoglDisplay is that it lets us negotiate a display pipeline that best supports the type of CoglOnscreen framebuffers we are planning to create. For instance if you want transparent CoglOnscreen framebuffers then we have to be sure the display pipeline wont discard the alpha component of your framebuffers. Or if you want to use double/tripple buffering that requires support from the display pipeline. CoglOnscreenTemplate and CoglSwapChain are how we describe our default CoglOnscreen framebuffer configuration which can affect the configuration of the display pipeline. The default/simple way we expect most CoglContexts to be constructed will be via something like: if (!cogl_context_new (NULL, &error)) g_error ("Failed to construct a CoglContext: %s", error->message); Where that NULL is for an optional "display" parameter and NULL says to Cogl "please just try to do something sensible". If you want some more control though you can manually construct a CoglDisplay something like: display = cogl_display_new (NULL, NULL); cogl_gdl_display_set_plane (display, plane); if (!cogl_display_setup (display, &error)) g_error ("Failed to setup a CoglDisplay: %s", error->message); And in a similar fashion to cogl_context_new() you can optionally pass a NULL "renderer" and/or a NULL "onscreen template" so Cogl will try to just do something sensible. If you need to change the CoglOnscreen defaults you can provide a template something like: chain = cogl_swap_chain_new (); cogl_swap_chain_set_has_alpha (chain, TRUE); cogl_swap_chain_set_length (chain, 3); onscreen_template = cogl_onscreen_template_new (chain); cogl_onscreen_template_set_pixel_format (onscreen_template, COGL_PIXEL_FORMAT_RGB565); display = cogl_display_new (NULL, onscreen_template); if (!cogl_display_setup (display, &error)) g_error ("Failed to setup a CoglDisplay: %s", error->message);
2011-02-25 17:06:50 +00:00
CoglRenderer *renderer;
CoglOnscreenTemplate *onscreen_template;
Adds _cogl_wayland_texture_2d_new_from_buffer API This adds internal API to be able to wrap a wayland buffer as a CoglTexture2D. There is a --enable-wayland-egl-server option to decide if Cogl should support this feature and potentially any EGL based winsys could support this through the EGL_KHR_image_base and EGL_WL_bind_display extensions.
2011-05-25 00:37:56 +00:00
#ifdef COGL_HAS_WAYLAND_EGL_SERVER_SUPPORT
struct wl_display *wayland_compositor_display;
#endif
EGL: Updates GDL platform support The GDL API is used for example on intel ce4100 (aka Sodaville) based systems as a way to allocate memory that can be composited using the platforms overlay hardware. This updates the Cogl EGL winsys and the support in Clutter so we can continue to support these platforms.
2011-03-04 12:50:39 +00:00
#ifdef COGL_HAS_EGL_PLATFORM_GDL_SUPPORT
egl-gdl: struct gdl_plane never was a valid type The enum for the planes is called gdl_plant_id_t. https://bugzilla.gnome.org/show_bug.cgi?id=655355
2011-07-22 16:06:11 +00:00
gdl_plane_id_t gdl_plane;
EGL: Updates GDL platform support The GDL API is used for example on intel ce4100 (aka Sodaville) based systems as a way to allocate memory that can be composited using the platforms overlay hardware. This updates the Cogl EGL winsys and the support in Clutter so we can continue to support these platforms.
2011-03-04 12:50:39 +00:00
#endif
Adds renderer,display,onscreen-template and swap-chain stubs As part of the process of splitting Cogl out as a standalone graphics API we need to introduce some API concepts that will allow us to initialize a new CoglContext when Clutter isn't there to handle that for us... The new objects roughly in the order that they are (optionally) involved in constructing a context are: CoglRenderer, CoglOnscreenTemplate, CoglSwapChain and CoglDisplay. Conceptually a CoglRenderer represents a means for rendering. Cogl supports rendering via OpenGL or OpenGL ES 1/2.0 and those APIs are accessed through a number of different windowing APIs such as GLX, EGL, SDL or WGL and more. Potentially in the future Cogl could render using D3D or even by using libdrm and directly banging the hardware. All these choices are wrapped up in the configuration of a CoglRenderer. Conceptually a CoglDisplay represents a display pipeline for a renderer. Although Cogl doesn't aim to provide a detailed abstraction of display hardware, on some platforms we can give control over multiple display planes (On TV platforms for instance video content may be on one plane and 3D would be on another so a CoglDisplay lets you select the plane up-front.) Another aspect of CoglDisplay is that it lets us negotiate a display pipeline that best supports the type of CoglOnscreen framebuffers we are planning to create. For instance if you want transparent CoglOnscreen framebuffers then we have to be sure the display pipeline wont discard the alpha component of your framebuffers. Or if you want to use double/tripple buffering that requires support from the display pipeline. CoglOnscreenTemplate and CoglSwapChain are how we describe our default CoglOnscreen framebuffer configuration which can affect the configuration of the display pipeline. The default/simple way we expect most CoglContexts to be constructed will be via something like: if (!cogl_context_new (NULL, &error)) g_error ("Failed to construct a CoglContext: %s", error->message); Where that NULL is for an optional "display" parameter and NULL says to Cogl "please just try to do something sensible". If you want some more control though you can manually construct a CoglDisplay something like: display = cogl_display_new (NULL, NULL); cogl_gdl_display_set_plane (display, plane); if (!cogl_display_setup (display, &error)) g_error ("Failed to setup a CoglDisplay: %s", error->message); And in a similar fashion to cogl_context_new() you can optionally pass a NULL "renderer" and/or a NULL "onscreen template" so Cogl will try to just do something sensible. If you need to change the CoglOnscreen defaults you can provide a template something like: chain = cogl_swap_chain_new (); cogl_swap_chain_set_has_alpha (chain, TRUE); cogl_swap_chain_set_length (chain, 3); onscreen_template = cogl_onscreen_template_new (chain); cogl_onscreen_template_set_pixel_format (onscreen_template, COGL_PIXEL_FORMAT_RGB565); display = cogl_display_new (NULL, onscreen_template); if (!cogl_display_setup (display, &error)) g_error ("Failed to setup a CoglDisplay: %s", error->message);
2011-02-25 17:06:50 +00:00
void *winsys;
};
#endif /* __COGL_DISPLAY_PRIVATE_H */
Reference in New Issue Copy Permalink