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mutter/cogl/winsys/cogl-winsys-egl-gdl.c
Neil Roberts d70c764da6 Move the EGL GDL winsys out of cogl-winsys-egl 
This moves all of the code specific to the gdl winsys out of
cogl-winsys-egl. It is completely untested apart from that it
compiles.

Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-12-13 16:08:37 +00:00

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/*
* 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/>.
*
*
* Authors:
* Robert Bragg <robert@linux.intel.com>
* Neil Roberts <neil@linux.intel.com>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "cogl-winsys-egl-gdl-private.h"
#include "cogl-winsys-egl-private.h"
#include "cogl-renderer-private.h"
#include "cogl-framebuffer-private.h"
#include "cogl-onscreen-private.h"
#include "cogl-onscreen-template-private.h"
#include "cogl-swap-chain-private.h"
static const CoglWinsysEGLVtable _cogl_winsys_egl_vtable;
typedef struct _CoglRendererGDL
{
gboolean gdl_initialized;
} CoglRendererGDL;
typedef struct _CoglDisplayGDL
{
int egl_surface_width;
int egl_surface_height;
gboolean have_onscreen;
} CoglDisplayGDL;
static void
_cogl_winsys_renderer_disconnect (CoglRenderer *renderer)
{
CoglRendererEGL *egl_renderer = renderer->winsys;
CoglRendererGDL *gdl_renderer = egl_renderer->platform;
if (gdl_renderer->gdl_initialized)
gdl_close ();
eglTerminate (egl_renderer->edpy);
g_slice_free (CoglRendererEGL, egl_renderer);
}
static gboolean
_cogl_winsys_renderer_connect (CoglRenderer *renderer,
GError **error)
{
CoglRendererEGL *egl_renderer;
CoglRendererGDL *gdl_renderer;
gdl_ret_t rc = GDL_SUCCESS;
gdl_display_info_t gdl_display_info;
renderer->winsys = g_slice_new0 (CoglRendererEGL);
egl_renderer = renderer->winsys;
gdl_renderer = g_slice_new0 (CoglRendererGDL);
egl_renderer->platform = gdl_renderer;
egl_renderer->platform_vtable = &_cogl_winsys_egl_vtable;
egl_renderer->edpy = eglGetDisplay (EGL_DEFAULT_DISPLAY);
if (!_cogl_winsys_egl_renderer_connect_common (renderer, error))
goto error;
/* Check we can talk to the GDL library */
rc = gdl_init (NULL);
if (rc != GDL_SUCCESS)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"GDL initialize failed. %s",
gdl_get_error_string (rc));
goto error;
}
rc = gdl_get_display_info (GDL_DISPLAY_ID_0, &gdl_display_info);
if (rc != GDL_SUCCESS)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"GDL failed to get display information: %s",
gdl_get_error_string (rc));
gdl_close ();
goto error;
}
gdl_close ();
return TRUE;
error:
_cogl_winsys_renderer_disconnect (renderer);
return FALSE;
}
static gboolean
_cogl_winsys_egl_context_created (CoglDisplay *display,
GError **error)
{
CoglRenderer *renderer = display->renderer;
CoglRendererEGL *egl_renderer = renderer->winsys;
CoglDisplayEGL *egl_display = display->winsys;
CoglDisplayGDL *gdl_display = egl_display->platform;
const char *error_message;
egl_display->egl_surface =
eglCreateWindowSurface (egl_renderer->edpy,
egl_display->egl_config,
(NativeWindowType) display->gdl_plane,
NULL);
if (egl_display->egl_surface == EGL_NO_SURFACE)
{
error_message = "Unable to create EGL window surface";
goto fail;
}
if (!eglMakeCurrent (egl_renderer->edpy,
egl_display->egl_surface,
egl_display->egl_surface,
egl_display->egl_context))
{
error_message = "Unable to eglMakeCurrent with egl surface";
goto fail;
}
eglQuerySurface (egl_renderer->edpy,
egl_display->egl_surface,
EGL_WIDTH,
&gdl_display->egl_surface_width);
eglQuerySurface (egl_renderer->edpy,
egl_display->egl_surface,
EGL_HEIGHT,
&gdl_display->egl_surface_height);
return TRUE;
fail:
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_CONTEXT,
"%s", error_message);
return FALSE;
}
static gboolean
gdl_plane_init (CoglDisplay *display, GError **error)
{
gboolean ret = TRUE;
gdl_color_space_t colorSpace = GDL_COLOR_SPACE_RGB;
gdl_pixel_format_t pixfmt = GDL_PF_ARGB_32;
gdl_rectangle_t dstRect;
gdl_display_info_t display_info;
gdl_ret_t rc = GDL_SUCCESS;
if (!display->gdl_plane)
{
g_set_error (error, COGL_WINSYS_ERROR, COGL_WINSYS_ERROR_CREATE_CONTEXT,
"No GDL plane specified with "
"cogl_gdl_display_set_plane");
return FALSE;
}
rc = gdl_init (NULL);
if (rc != GDL_SUCCESS)
{
g_set_error (error, COGL_WINSYS_ERROR, COGL_WINSYS_ERROR_CREATE_CONTEXT,
"GDL initialize failed. %s", gdl_get_error_string (rc));
return FALSE;
}
rc = gdl_get_display_info (GDL_DISPLAY_ID_0, &display_info);
if (rc != GDL_SUCCESS)
{
g_set_error (error, COGL_WINSYS_ERROR, COGL_WINSYS_ERROR_CREATE_CONTEXT,
"GDL failed to get display infomation: %s",
gdl_get_error_string (rc));
gdl_close ();
return FALSE;
}
dstRect.origin.x = 0;
dstRect.origin.y = 0;
dstRect.width = display_info.tvmode.width;
dstRect.height = display_info.tvmode.height;
/* Configure the plane attribute. */
rc = gdl_plane_reset (display->gdl_plane);
if (rc == GDL_SUCCESS)
rc = gdl_plane_config_begin (display->gdl_plane);
if (rc == GDL_SUCCESS)
rc = gdl_plane_set_attr (GDL_PLANE_SRC_COLOR_SPACE, &colorSpace);
if (rc == GDL_SUCCESS)
rc = gdl_plane_set_attr (GDL_PLANE_PIXEL_FORMAT, &pixfmt);
if (rc == GDL_SUCCESS)
rc = gdl_plane_set_attr (GDL_PLANE_DST_RECT, &dstRect);
/* Default to triple buffering if the swap_chain doesn't have an explicit
* length */
if (rc == GDL_SUCCESS)
{
if (display->onscreen_template->config.swap_chain &&
display->onscreen_template->config.swap_chain->length != -1)
rc = gdl_plane_set_uint (GDL_PLANE_NUM_GFX_SURFACES,
display->onscreen_template->
config.swap_chain->length);
else
rc = gdl_plane_set_uint (GDL_PLANE_NUM_GFX_SURFACES, 3);
}
if (rc == GDL_SUCCESS)
rc = gdl_plane_config_end (GDL_FALSE);
else
gdl_plane_config_end (GDL_TRUE);
if (rc != GDL_SUCCESS)
{
g_set_error (error, COGL_WINSYS_ERROR, COGL_WINSYS_ERROR_CREATE_CONTEXT,
"GDL configuration failed: %s.", gdl_get_error_string (rc));
ret = FALSE;
}
gdl_close ();
return ret;
}
static gboolean
_cogl_winsys_egl_display_setup (CoglDisplay *display,
GError **error)
{
CoglDisplayEGL *egl_display = display->winsys;
CoglDisplayGDL *gdl_display;
gdl_display = g_slice_new0 (CoglDisplayGDL);
egl_display->platform = gdl_display;
if (!gdl_plane_init (display, error))
return FALSE;
return TRUE;
}
static void
_cogl_winsys_egl_display_destroy (CoglDisplay *display)
{
CoglDisplayEGL *egl_display = display->winsys;
g_slice_free (CoglDisplayGDL, egl_display->platform);
}
static void
_cogl_winsys_egl_cleanup_context (CoglDisplay *display)
{
CoglRenderer *renderer = display->renderer;
CoglRendererEGL *egl_renderer = renderer->winsys;
CoglDisplayEGL *egl_display = display->winsys;
if (egl_display->egl_surface != EGL_NO_SURFACE)
{
eglDestroySurface (egl_renderer->edpy, egl_display->egl_surface);
egl_display->egl_surface = EGL_NO_SURFACE;
}
}
static gboolean
_cogl_winsys_egl_onscreen_init (CoglOnscreen *onscreen,
EGLConfig egl_config,
GError **error)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
CoglContext *context = framebuffer->context;
CoglDisplay *display = context->display;
CoglDisplayEGL *egl_display = display->winsys;
CoglDisplayGDL *gdl_display = egl_display->platform;
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
if (gdl_display->have_onscreen)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_ONSCREEN,
"EGL platform only supports a single onscreen window");
return FALSE;
}
egl_onscreen->egl_surface = egl_display->egl_surface;
_cogl_framebuffer_winsys_update_size (framebuffer,
gdl_display->egl_surface_width,
gdl_display->egl_surface_height);
gdl_display->have_onscreen = TRUE;
return TRUE;
}
static int
_cogl_winsys_egl_add_config_attributes (CoglDisplay *display,
CoglFramebufferConfig *config,
EGLint *attributes)
{
int i = 0;
/* XXX: Why does the GDL platform choose these by default? */
attributes[i++] = EGL_BIND_TO_TEXTURE_RGBA;
attributes[i++] = EGL_TRUE;
attributes[i++] = EGL_BIND_TO_TEXTURE_RGB;
attributes[i++] = EGL_TRUE;
return i;
}
static const CoglWinsysEGLVtable
_cogl_winsys_egl_vtable =
{
.display_setup = _cogl_winsys_egl_display_setup,
.display_destroy = _cogl_winsys_egl_display_destroy,
.context_created = _cogl_winsys_egl_context_created,
.cleanup_context = _cogl_winsys_egl_cleanup_context,
.onscreen_init = _cogl_winsys_egl_onscreen_init,
.add_config_attributes = _cogl_winsys_egl_add_config_attributes
};
const CoglWinsysVtable *
_cogl_winsys_egl_gdl_get_vtable (void)
{
static gboolean vtable_inited = FALSE;
static CoglWinsysVtable vtable;
if (!vtable_inited)
{
/* The EGL_GDL winsys is a subclass of the EGL winsys so we
start by copying its vtable */
vtable = *_cogl_winsys_egl_get_vtable ();
vtable.id = COGL_WINSYS_ID_EGL_GDL;
vtable.name = "EGL_GDL";
vtable.renderer_connect = _cogl_winsys_renderer_connect;
vtable.renderer_disconnect = _cogl_winsys_renderer_disconnect;
vtable_inited = TRUE;
}
return &vtable;
}
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