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egl: Split out the KMS winsys as overrides of the EGL winsys

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Instead of having #ifdefs to hook into the normal EGL winsys, the KMS
winsys now overrides any winsys functions that it wants. Where the
winsys wants to hook into a point within a function provided by the
EGL winsys there is a EGL-platform vtable which gets set on the EGL
renderer data during renderer_connect. The KMS-specific data on all of
the structures is now allocated separately by the KMS winsys and is
pointed to by a new 'platform' pointer in the EGL data.

Reviewed-by: Robert Bragg <robert@linux.intel.com>
This commit is contained in:
Neil Roberts 2011-12-09 16:10:01 +00:00
parent 93e6e2051f
commit dd75926c1a
7 changed files with 698 additions and 777 deletions
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2
cogl/Makefile.am
View File

@ -382,8 +382,6 @@ cogl_sources_c += \
endif
if SUPPORT_EGL_PLATFORM_KMS
cogl_sources_c += \
$(srcdir)/winsys/cogl-winsys-kms.c \
$(srcdir)/winsys/cogl-winsys-kms.h \
$(srcdir)/winsys/cogl-winsys-egl-kms.c \
$(srcdir)/winsys/cogl-winsys-egl-kms-private.h
endif

2
cogl/winsys/cogl-winsys-egl-kms-private.h
View File

@ -19,6 +19,8 @@
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*
* Authors:
* Neil Roberts <neil@linux.intel.com>
*/
#ifndef __COGL_WINSYS_EGL_KMS_PRIVATE_H

516
cogl/winsys/cogl-winsys-egl-kms.c
View File

@ -21,6 +21,9 @@
*
*
* Authors:
* Rob Bradford <rob@linux.intel.com>
* Kristian Høgsberg (from eglkms.c)
* Benjamin Franzke (from eglkms.c)
* Robert Bragg <robert@linux.intel.com>
* Neil Roberts <neil@linux.intel.com>
*/
@ -29,8 +32,507 @@
#include "config.h"
#endif
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <drm.h>
#include <xf86drmMode.h>
#include <gbm.h>
#include <glib.h>
#include <sys/fcntl.h>
#include <unistd.h>
#include "cogl-winsys-egl-kms-private.h"
#include "cogl-winsys-egl-private.h"
#include "cogl-renderer-private.h"
#include "cogl-framebuffer-private.h"
#include "cogl-onscreen-private.h"
static const CoglWinsysEGLVtable _cogl_winsys_egl_vtable;
typedef struct _CoglRendererKMS
{
int fd;
struct gbm_device *gbm;
} CoglRendererKMS;
typedef struct _CoglDisplayKMS
{
drmModeConnector *connector;
drmModeEncoder *encoder;
drmModeModeInfo mode;
drmModeCrtcPtr saved_crtc;
int width, height;
} CoglDisplayKMS;
typedef struct _CoglOnscreenKMS
{
uint32_t fb_id[2];
struct gbm_bo *bo[2];
unsigned int fb, color_rb[2], depth_rb;
EGLImageKHR image[2];
int current_frame;
} CoglOnscreenKMS;
static const char device_name[] = "/dev/dri/card0";
static void
_cogl_winsys_renderer_disconnect (CoglRenderer *renderer)
{
CoglRendererEGL *egl_renderer = renderer->winsys;
CoglRendererKMS *kms_renderer = egl_renderer->platform;
eglTerminate (egl_renderer->edpy);
g_slice_free (CoglRendererKMS, kms_renderer);
g_slice_free (CoglRendererEGL, egl_renderer);
}
static gboolean
_cogl_winsys_renderer_connect (CoglRenderer *renderer,
GError **error)
{
CoglRendererEGL *egl_renderer;
CoglRendererKMS *kms_renderer;
renderer->winsys = g_slice_new0 (CoglRendererEGL);
egl_renderer = renderer->winsys;
egl_renderer->platform_vtable = &_cogl_winsys_egl_vtable;
egl_renderer->platform = g_slice_new0 (CoglRendererKMS);
kms_renderer = egl_renderer->platform;
kms_renderer->fd = open (device_name, O_RDWR);
if (kms_renderer->fd < 0)
{
/* Probably permissions error */
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"Couldn't open %s", device_name);
return FALSE;
}
kms_renderer->gbm = gbm_create_device (kms_renderer->fd);
if (kms_renderer->gbm == NULL)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"Couldn't create gbm device");
goto close_fd;
}
egl_renderer->edpy = eglGetDisplay ((EGLNativeDisplayType)kms_renderer->gbm);
if (egl_renderer->edpy == EGL_NO_DISPLAY)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"Couldn't get eglDisplay");
goto destroy_gbm_device;
}
if (!_cogl_winsys_egl_renderer_connect_common (renderer, error))
goto egl_terminate;
return TRUE;
egl_terminate:
eglTerminate (egl_renderer->edpy);
destroy_gbm_device:
gbm_device_destroy (kms_renderer->gbm);
close_fd:
close (kms_renderer->fd);
_cogl_winsys_renderer_disconnect (renderer);
return FALSE;
}
static gboolean
_cogl_winsys_egl_display_setup (CoglDisplay *display,
GError **error)
{
CoglDisplayEGL *egl_display = display->winsys;
CoglDisplayKMS *kms_display;
CoglRendererEGL *egl_renderer = display->renderer->winsys;
CoglRendererKMS *kms_renderer = egl_renderer->platform;
CoglEGLWinsysFeature surfaceless_feature = 0;
const char *surfaceless_feature_name = "";
drmModeRes *resources;
drmModeConnector *connector;
drmModeEncoder *encoder;
int i;
kms_display = g_slice_new0 (CoglDisplayKMS);
egl_display->platform = kms_display;
switch (display->renderer->driver)
{
case COGL_DRIVER_GL:
surfaceless_feature = COGL_EGL_WINSYS_FEATURE_SURFACELESS_OPENGL;
surfaceless_feature_name = "opengl";
break;
case COGL_DRIVER_GLES1:
surfaceless_feature = COGL_EGL_WINSYS_FEATURE_SURFACELESS_GLES1;
surfaceless_feature_name = "gles1";
break;
case COGL_DRIVER_GLES2:
surfaceless_feature = COGL_EGL_WINSYS_FEATURE_SURFACELESS_GLES2;
surfaceless_feature_name = "gles2";
break;
}
if (!(egl_renderer->private_features & surfaceless_feature))
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"EGL_KHR_surfaceless_%s extension not available",
surfaceless_feature_name);
return FALSE;
}
resources = drmModeGetResources (kms_renderer->fd);
if (!resources)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"drmModeGetResources failed");
return FALSE;
}
for (i = 0; i < resources->count_connectors; i++)
{
connector = drmModeGetConnector (kms_renderer->fd,
resources->connectors[i]);
if (connector == NULL)
continue;
if (connector->connection == DRM_MODE_CONNECTED &&
connector->count_modes > 0)
break;
drmModeFreeConnector(connector);
}
if (i == resources->count_connectors)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"No currently active connector found");
return FALSE;
}
for (i = 0; i < resources->count_encoders; i++)
{
encoder = drmModeGetEncoder (kms_renderer->fd, resources->encoders[i]);
if (encoder == NULL)
continue;
if (encoder->encoder_id == connector->encoder_id)
break;
drmModeFreeEncoder (encoder);
}
kms_display->saved_crtc = drmModeGetCrtc (kms_renderer->fd,
encoder->crtc_id);
kms_display->connector = connector;
kms_display->encoder = encoder;
kms_display->mode = connector->modes[0];
kms_display->width = kms_display->mode.hdisplay;
kms_display->height = kms_display->mode.vdisplay;
return TRUE;
}
static void
_cogl_winsys_egl_display_destroy (CoglDisplay *display)
{
CoglDisplayEGL *egl_display = display->winsys;
g_slice_free (CoglDisplayKMS, egl_display->platform);
}
static gboolean
_cogl_winsys_egl_try_create_context (CoglDisplay *display,
EGLint *attribs,
GError **error)
{
CoglRenderer *renderer = display->renderer;
CoglRendererEGL *egl_renderer = renderer->winsys;
CoglDisplayEGL *egl_display = display->winsys;
CoglDisplayKMS *kms_display = egl_display->platform;
egl_display->egl_context = eglCreateContext (egl_renderer->edpy,
NULL,
EGL_NO_CONTEXT,
attribs);
if (egl_display->egl_context == NULL)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_CONTEXT,
"Couldn't create EGL context");
return FALSE;
}
if (!eglMakeCurrent (egl_renderer->edpy,
EGL_NO_SURFACE,
EGL_NO_SURFACE,
egl_display->egl_context))
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_CONTEXT,
"Failed to make context current");
return FALSE;
}
egl_display->egl_surface_width = kms_display->width;
egl_display->egl_surface_height = kms_display->height;
return TRUE;
}
static void
_cogl_winsys_egl_cleanup_context (CoglDisplay *display)
{
CoglDisplayEGL *egl_display = display->winsys;
CoglDisplayKMS *kms_display = egl_display->platform;
CoglRenderer *renderer = display->renderer;
CoglRendererEGL *egl_renderer = renderer->winsys;
CoglRendererKMS *kms_renderer = egl_renderer->platform;
int ret;
/* Restore the saved CRTC - this failing should not propagate an error */
ret = drmModeSetCrtc (kms_renderer->fd,
kms_display->saved_crtc->crtc_id,
kms_display->saved_crtc->buffer_id,
kms_display->saved_crtc->x, kms_display->saved_crtc->y,
&kms_display->connector->connector_id, 1,
&kms_display->saved_crtc->mode);
if (ret)
g_critical (G_STRLOC ": Error restoring saved CRTC");
drmModeFreeCrtc (kms_display->saved_crtc);
}
static void
_cogl_winsys_onscreen_swap_buffers (CoglOnscreen *onscreen)
{
CoglContext *context = COGL_FRAMEBUFFER (onscreen)->context;
CoglDisplayEGL *egl_display = context->display->winsys;
CoglDisplayKMS *kms_display = egl_display->platform;
CoglRenderer *renderer = context->display->renderer;
CoglRendererEGL *egl_renderer = renderer->winsys;
CoglRendererKMS *kms_renderer = egl_renderer->platform;
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
CoglOnscreenKMS *kms_onscreen = egl_onscreen->platform;
if (drmModeSetCrtc (kms_renderer->fd,
kms_display->encoder->crtc_id,
kms_onscreen->fb_id[kms_onscreen->current_frame],
0, 0,
&kms_display->connector->connector_id,
1,
&kms_display->mode) != 0)
{
g_error (G_STRLOC ": Setting CRTC failed");
}
/* Update frame that we're drawing to be the new one */
kms_onscreen->current_frame ^= 1;
context->glBindFramebuffer (GL_FRAMEBUFFER_EXT, kms_onscreen->fb);
context->glFramebufferRenderbuffer (GL_FRAMEBUFFER_EXT,
GL_COLOR_ATTACHMENT0_EXT,
GL_RENDERBUFFER_EXT,
kms_onscreen->
color_rb[kms_onscreen->current_frame]);
if (context->glCheckFramebufferStatus (GL_FRAMEBUFFER_EXT) !=
GL_FRAMEBUFFER_COMPLETE)
{
g_error (G_STRLOC ": FBO not complete");
}
}
static gboolean
_cogl_winsys_onscreen_init (CoglOnscreen *onscreen,
GError **error)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
CoglContext *context = framebuffer->context;
CoglDisplay *display = context->display;
CoglDisplayEGL *egl_display = display->winsys;
CoglDisplayKMS *kms_display = egl_display->platform;
CoglRenderer *renderer = display->renderer;
CoglRendererEGL *egl_renderer = renderer->winsys;
CoglRendererKMS *kms_renderer = egl_renderer->platform;
CoglOnscreenEGL *egl_onscreen;
CoglOnscreenKMS *kms_onscreen;
int i;
_COGL_RETURN_VAL_IF_FAIL (egl_display->egl_context, FALSE);
onscreen->winsys = g_slice_new0 (CoglOnscreenEGL);
egl_onscreen = onscreen->winsys;
kms_onscreen = g_slice_new0 (CoglOnscreenKMS);
egl_onscreen->platform = kms_onscreen;
context->glGenRenderbuffers (2, kms_onscreen->color_rb);
for (i = 0; i < 2; i++)
{
uint32_t handle, stride;
kms_onscreen->bo[i] =
gbm_bo_create (kms_renderer->gbm,
kms_display->mode.hdisplay, kms_display->mode.vdisplay,
GBM_BO_FORMAT_XRGB8888,
GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
if (!kms_onscreen->bo[i])
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_CONTEXT,
"Failed to allocate buffer");
return FALSE;
}
kms_onscreen->image[i] =
_cogl_egl_create_image (context,
EGL_NATIVE_PIXMAP_KHR,
kms_onscreen->bo[i],
NULL);
if (kms_onscreen->image[i] == EGL_NO_IMAGE_KHR)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_CONTEXT,
"Failed to create EGL image");
return FALSE;
}
context->glBindRenderbuffer (GL_RENDERBUFFER_EXT,
kms_onscreen->color_rb[i]);
context->glEGLImageTargetRenderbufferStorage (GL_RENDERBUFFER,
kms_onscreen->image[i]);
context->glBindRenderbuffer (GL_RENDERBUFFER_EXT, 0);
handle = gbm_bo_get_handle (kms_onscreen->bo[i]).u32;
stride = gbm_bo_get_pitch (kms_onscreen->bo[i]);
if (drmModeAddFB (kms_renderer->fd,
kms_display->mode.hdisplay,
kms_display->mode.vdisplay,
24, 32,
stride,
handle,
&kms_onscreen->fb_id[i]) != 0)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_CONTEXT,
"Failed to create framebuffer from buffer");
return FALSE;
}
}
context->glGenFramebuffers (1, &kms_onscreen->fb);
context->glBindFramebuffer (GL_FRAMEBUFFER_EXT, kms_onscreen->fb);
context->glGenRenderbuffers (1, &kms_onscreen->depth_rb);
context->glBindRenderbuffer (GL_RENDERBUFFER_EXT, kms_onscreen->depth_rb);
context->glRenderbufferStorage (GL_RENDERBUFFER_EXT,
GL_DEPTH_COMPONENT16,
kms_display->mode.hdisplay,
kms_display->mode.vdisplay);
context->glBindRenderbuffer (GL_RENDERBUFFER_EXT, 0);
context->glFramebufferRenderbuffer (GL_FRAMEBUFFER_EXT,
GL_DEPTH_ATTACHMENT_EXT,
GL_RENDERBUFFER_EXT,
kms_onscreen->depth_rb);
kms_onscreen->current_frame = 0;
_cogl_winsys_onscreen_swap_buffers (onscreen);
_cogl_framebuffer_winsys_update_size (framebuffer,
egl_display->egl_surface_width,
egl_display->egl_surface_height);
return TRUE;
}
static void
_cogl_winsys_onscreen_deinit (CoglOnscreen *onscreen)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
CoglContext *context = framebuffer->context;
CoglRenderer *renderer = context->display->renderer;
CoglRendererEGL *egl_renderer = renderer->winsys;
CoglRendererKMS *kms_renderer = egl_renderer->platform;
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
CoglOnscreenKMS *kms_onscreen;
int i;
/* If we never successfully allocated then there's nothing to do */
if (egl_onscreen == NULL)
return;
kms_onscreen = egl_onscreen->platform;
context->glBindFramebuffer (GL_FRAMEBUFFER_EXT, kms_onscreen->fb);
context->glFramebufferRenderbuffer (GL_FRAMEBUFFER_EXT,
GL_COLOR_ATTACHMENT0_EXT,
GL_RENDERBUFFER_EXT,
0);
context->glDeleteRenderbuffers(2, kms_onscreen->color_rb);
context->glFramebufferRenderbuffer (GL_FRAMEBUFFER_EXT,
GL_DEPTH_ATTACHMENT_EXT,
GL_RENDERBUFFER_EXT,
0);
context->glDeleteRenderbuffers(1, &kms_onscreen->depth_rb);
for (i = 0; i < 2; i++)
{
drmModeRmFB (kms_renderer->fd, kms_onscreen->fb_id[i]);
_cogl_egl_destroy_image (context, kms_onscreen->image[i]);
gbm_bo_destroy (kms_onscreen->bo[i]);
}
g_slice_free (CoglOnscreenKMS, kms_onscreen);
g_slice_free (CoglOnscreenEGL, onscreen->winsys);
onscreen->winsys = NULL;
}
static void
_cogl_winsys_onscreen_bind (CoglOnscreen *onscreen)
{
CoglContext *context = COGL_FRAMEBUFFER (onscreen)->context;
CoglDisplayEGL *egl_display = context->display->winsys;
CoglRenderer *renderer = context->display->renderer;
CoglRendererEGL *egl_renderer = renderer->winsys;
eglMakeCurrent (egl_renderer->edpy,
EGL_NO_SURFACE,
EGL_NO_SURFACE,
egl_display->egl_context);
}
static void
_cogl_winsys_onscreen_update_swap_throttled (CoglOnscreen *onscreen)
{
_cogl_winsys_onscreen_bind (onscreen);
}
static const CoglWinsysEGLVtable
_cogl_winsys_egl_vtable =
{
.display_setup = _cogl_winsys_egl_display_setup,
.display_destroy = _cogl_winsys_egl_display_destroy,
.try_create_context = _cogl_winsys_egl_try_create_context,
.cleanup_context = _cogl_winsys_egl_cleanup_context
};
const CoglWinsysVtable *
_cogl_winsys_egl_kms_get_vtable (void)
@ -48,6 +550,20 @@ _cogl_winsys_egl_kms_get_vtable (void)
vtable.id = COGL_WINSYS_ID_EGL_KMS;
vtable.name = "EGL_KMS";
vtable.renderer_connect = _cogl_winsys_renderer_connect;
vtable.renderer_disconnect = _cogl_winsys_renderer_disconnect;
vtable.onscreen_init = _cogl_winsys_onscreen_init;
vtable.onscreen_deinit = _cogl_winsys_onscreen_deinit;
vtable.onscreen_bind = _cogl_winsys_onscreen_bind;
/* The KMS winsys doesn't support swap region */
vtable.onscreen_swap_region = NULL;
vtable.onscreen_swap_buffers = _cogl_winsys_onscreen_swap_buffers;
vtable.onscreen_update_swap_throttled =
_cogl_winsys_onscreen_update_swap_throttled;
vtable_inited = TRUE;
}

64
cogl/winsys/cogl-winsys-egl-private.h
View File

@ -28,9 +28,6 @@
#include "cogl-winsys-private.h"
#include "cogl-context.h"
#include "cogl-context-private.h"
#ifdef COGL_HAS_EGL_PLATFORM_KMS_SUPPORT
#include "cogl-winsys-kms.h"
#endif
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
#include "cogl-xlib-renderer-private.h"
#include "cogl-xlib-display-private.h"
@ -40,6 +37,23 @@
#include <wayland-egl.h>
#endif
typedef struct _CoglWinsysEGLVtable
{
gboolean
(* display_setup) (CoglDisplay *display,
GError **error);
void
(* display_destroy) (CoglDisplay *display);
gboolean
(* try_create_context) (CoglDisplay *display,
EGLint *attribs,
GError **error);
void
(* cleanup_context) (CoglDisplay *display);
} CoglWinsysEGLVtable;
typedef enum _CoglEGLWinsysFeature
{
COGL_EGL_WINSYS_FEATURE_SWAP_REGION =1L<<0,
@ -72,9 +86,11 @@ typedef struct _CoglRendererEGL
#ifdef COGL_HAS_EGL_PLATFORM_GDL_SUPPORT
gboolean gdl_initialized;
#endif
#ifdef COGL_HAS_EGL_PLATFORM_KMS_SUPPORT
CoglRendererKMS kms_renderer;
#endif
/* Data specific to the EGL platform */
void *platform;
/* vtable for platform specific parts */
const CoglWinsysEGLVtable *platform_vtable;
/* Function pointers for GLX specific extensions */
#define COGL_WINSYS_FEATURE_BEGIN(a, b, c, d)
@ -103,9 +119,6 @@ typedef struct _CoglDisplayEGL
struct wl_surface *wayland_surface;
struct wl_egl_window *wayland_egl_native_window;
#endif
#ifdef COGL_HAS_EGL_PLATFORM_KMS_SUPPORT
CoglDisplayKMS kms_display;
#endif
#if defined (COGL_HAS_EGL_PLATFORM_POWERVR_NULL_SUPPORT) || \
defined (COGL_HAS_EGL_PLATFORM_GDL_SUPPORT) || \
defined (COGL_HAS_EGL_PLATFORM_ANDROID_SUPPORT) || \
@ -119,6 +132,9 @@ typedef struct _CoglDisplayEGL
EGLConfig egl_config;
gboolean found_egl_config;
gboolean stencil_disabled;
/* Platform specific display data */
void *platform;
} CoglDisplayEGL;
typedef struct _CoglContextEGL
@ -126,6 +142,32 @@ typedef struct _CoglContextEGL
EGLSurface current_surface;
} CoglContextEGL;
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
typedef struct _CoglOnscreenXlib
{
Window xwin;
gboolean is_foreign_xwin;
} CoglOnscreenXlib;
#endif
typedef struct _CoglOnscreenEGL
{
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
CoglOnscreenXlib _parent;
#endif
#ifdef COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT
struct wl_egl_window *wayland_egl_native_window;
struct wl_surface *wayland_surface;
struct wl_shell_surface *wayland_shell_surface;
#endif
EGLSurface egl_surface;
/* Platform specific data */
void *platform;
} CoglOnscreenEGL;
const CoglWinsysVtable *
_cogl_winsys_egl_get_vtable (void);
@ -141,4 +183,8 @@ _cogl_egl_destroy_image (CoglContext *ctx,
EGLImageKHR image);
#endif
gboolean
_cogl_winsys_egl_renderer_connect_common (CoglRenderer *renderer,
GError **error);
#endif /* __COGL_WINSYS_EGL_PRIVATE_H */

220
cogl/winsys/cogl-winsys-egl.c
View File

@ -62,10 +62,6 @@
#include <android/native_window.h>
#endif
#ifdef COGL_HAS_EGL_PLATFORM_KMS_SUPPORT
#include "cogl-winsys-kms.h"
#endif
#include <stdlib.h>
#include <stdio.h>
#include <sys/types.h>
@ -82,32 +78,6 @@
#define MAX_EGL_CONFIG_ATTRIBS 30
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
typedef struct _CoglOnscreenXlib
{
Window xwin;
gboolean is_foreign_xwin;
} CoglOnscreenXlib;
#endif
typedef struct _CoglOnscreenEGL
{
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
CoglOnscreenXlib _parent;
#endif
#ifdef COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT
struct wl_egl_window *wayland_egl_native_window;
struct wl_surface *wayland_surface;
struct wl_shell_surface *wayland_shell_surface;
#endif
#ifdef COGL_HAS_EGL_PLATFORM_KMS_SUPPORT
CoglOnscreenKMS kms_onscreen;
#endif
EGLSurface egl_surface;
} CoglOnscreenEGL;
#ifdef EGL_KHR_image_pixmap
typedef struct _CoglTexturePixmapEGL
{
@ -288,6 +258,27 @@ check_egl_extensions (CoglRenderer *renderer)
}
}
gboolean
_cogl_winsys_egl_renderer_connect_common (CoglRenderer *renderer,
GError **error)
{
CoglRendererEGL *egl_renderer = renderer->winsys;
if (!eglInitialize (egl_renderer->edpy,
&egl_renderer->egl_version_major,
&egl_renderer->egl_version_minor))
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"Couldn't initialize EGL");
return FALSE;
}
check_egl_extensions (renderer);
return TRUE;
}
static gboolean
_cogl_winsys_renderer_connect (CoglRenderer *renderer,
GError **error)
@ -296,7 +287,6 @@ _cogl_winsys_renderer_connect (CoglRenderer *renderer,
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
CoglXlibRenderer *xlib_renderer;
#endif
EGLBoolean status;
#ifdef COGL_HAS_EGL_PLATFORM_GDL_SUPPORT
gdl_ret_t rc = GDL_SUCCESS;
gdl_display_info_t gdl_display_info;
@ -321,10 +311,6 @@ _cogl_winsys_renderer_connect (CoglRenderer *renderer,
egl_renderer->edpy =
eglGetDisplay ((NativeDisplayType) xlib_renderer->xdpy);
status = eglInitialize (egl_renderer->edpy,
&egl_renderer->egl_version_major,
&egl_renderer->egl_version_minor);
break;
#endif
@ -376,19 +362,6 @@ _cogl_winsys_renderer_connect (CoglRenderer *renderer,
egl_renderer->edpy =
eglGetDisplay ((EGLNativeDisplayType)egl_renderer->wayland_display);
status = eglInitialize (egl_renderer->edpy,
&egl_renderer->egl_version_major,
&egl_renderer->egl_version_minor);
break;
#endif
#ifdef COGL_HAS_EGL_PLATFORM_KMS_SUPPORT
case COGL_WINSYS_ID_EGL_KMS:
if (!_cogl_winsys_kms_connect (&egl_renderer->kms_renderer, error))
goto error;
egl_renderer->edpy = egl_renderer->kms_renderer.dpy;
status = EGL_TRUE;
break;
#endif
@ -396,20 +369,11 @@ _cogl_winsys_renderer_connect (CoglRenderer *renderer,
case COGL_WINSYS_ID_EGL_ANDROID:
case COGL_WINSYS_ID_EGL_NULL:
egl_renderer->edpy = eglGetDisplay (EGL_DEFAULT_DISPLAY);
status = eglInitialize (egl_renderer->edpy,
&egl_renderer->egl_version_major,
&egl_renderer->egl_version_minor);
break;
}
if (status != EGL_TRUE)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"Failed to initialize EGL");
if (!_cogl_winsys_egl_renderer_connect_common (renderer, error))
goto error;
}
#ifdef COGL_HAS_EGL_PLATFORM_GDL_SUPPORT
if (renderer->winsys_vtable->id == COGL_WINSYS_ID_EGL_GDL)
@ -441,8 +405,6 @@ _cogl_winsys_renderer_connect (CoglRenderer *renderer,
}
#endif
check_egl_extensions (renderer);
return TRUE;
error:
@ -624,18 +586,31 @@ try_create_context (CoglDisplay *display,
#endif
const char *error_message;
egl_attributes_from_framebuffer_config (display,
&display->onscreen_template->config,
with_stencil_buffer,
cfg_attribs);
_COGL_RETURN_VAL_IF_FAIL (egl_display->egl_context == NULL, TRUE);
if (renderer->driver == COGL_DRIVER_GL)
eglBindAPI (EGL_OPENGL_API);
if (renderer->winsys_vtable->id != COGL_WINSYS_ID_EGL_KMS)
if (display->renderer->driver == COGL_DRIVER_GLES2)
{
attribs[0] = EGL_CONTEXT_CLIENT_VERSION;
attribs[1] = 2;
attribs[2] = EGL_NONE;
}
else
attribs[0] = EGL_NONE;
/* Divert to the platform implementation if one is defined */
if (egl_renderer->platform_vtable &&
egl_renderer->platform_vtable->try_create_context)
return egl_renderer->platform_vtable->
try_create_context (display, attribs, error);
egl_attributes_from_framebuffer_config (display,
&display->onscreen_template->config,
with_stencil_buffer,
cfg_attribs);
edpy = egl_renderer->edpy;
status = eglChooseConfig (edpy,
@ -650,15 +625,6 @@ try_create_context (CoglDisplay *display,
egl_display->egl_config = config;
if (display->renderer->driver == COGL_DRIVER_GLES2)
{
attribs[0] = EGL_CONTEXT_CLIENT_VERSION;
attribs[1] = 2;
attribs[2] = EGL_NONE;
}
else
attribs[0] = EGL_NONE;
egl_display->egl_context = eglCreateContext (edpy,
config,
EGL_NO_CONTEXT,
@ -668,7 +634,6 @@ try_create_context (CoglDisplay *display,
error_message = "Unable to create a suitable EGL context";
goto fail;
}
}
switch (renderer->winsys_vtable->id)
{
@ -897,19 +862,6 @@ try_create_context (CoglDisplay *display,
&egl_display->egl_surface_height);
break;
#endif
#ifdef COGL_HAS_EGL_PLATFORM_KMS_SUPPORT
case COGL_WINSYS_ID_EGL_KMS:
if (!_cogl_winsys_kms_create_context (display->renderer,
display,
error))
return FALSE;
egl_display->egl_surface_width = egl_display->kms_display.width;
egl_display->egl_surface_height = egl_display->kms_display.height;
egl_display->egl_context = egl_display->kms_display.egl_context;
break;
#endif
}
return TRUE;
@ -932,21 +884,9 @@ cleanup_context (CoglDisplay *display)
CoglXlibRenderer *xlib_renderer = renderer->winsys;
#endif
#if defined (COGL_HAS_EGL_PLATFORM_KMS_SUPPORT)
if (renderer->winsys_vtable->id == COGL_WINSYS_ID_EGL_KMS)
{
GError *error = NULL;
if (!_cogl_winsys_kms_destroy_context (&egl_renderer->kms_renderer,
&egl_display->kms_display,
&error))
{
g_critical (G_STRLOC ": Error cleaning up KMS rendering state: %s",
error->message);
g_clear_error (&error);
}
}
#endif
if (egl_renderer->platform_vtable &&
egl_renderer->platform_vtable->cleanup_context)
egl_renderer->platform_vtable->cleanup_context (display);
if (egl_display->egl_context != EGL_NO_CONTEXT)
{
@ -1041,12 +981,17 @@ create_context (CoglDisplay *display, GError **error)
static void
_cogl_winsys_display_destroy (CoglDisplay *display)
{
CoglRendererEGL *egl_renderer = display->renderer->winsys;
CoglDisplayEGL *egl_display = display->winsys;
_COGL_RETURN_IF_FAIL (egl_display != NULL);
cleanup_context (display);
if (egl_renderer->platform_vtable &&
egl_renderer->platform_vtable->display_destroy)
egl_renderer->platform_vtable->display_destroy (display);
g_slice_free (CoglDisplayEGL, display->winsys);
display->winsys = NULL;
}
@ -1143,9 +1088,7 @@ _cogl_winsys_display_setup (CoglDisplay *display,
{
CoglDisplayEGL *egl_display;
CoglRenderer *renderer = display->renderer;
#ifdef COGL_HAS_WAYLAND_EGL_SERVER_SUPPORT
CoglRendererEGL *egl_renderer = renderer->winsys;
#endif
_COGL_RETURN_VAL_IF_FAIL (display->winsys == NULL, FALSE);
@ -1168,11 +1111,10 @@ _cogl_winsys_display_setup (CoglDisplay *display,
}
#endif
#ifdef COGL_HAS_EGL_PLATFORM_KMS_SUPPORT
if (renderer->winsys_vtable->id == COGL_WINSYS_ID_EGL_KMS &&
!_cogl_winsys_kms_display_setup (display, error))
if (egl_renderer->platform_vtable &&
egl_renderer->platform_vtable->display_setup &&
!egl_renderer->platform_vtable->display_setup (display, error))
goto error;
#endif
if (!create_context (display, error))
goto error;
@ -1237,8 +1179,6 @@ _cogl_winsys_onscreen_init (CoglOnscreen *onscreen,
_COGL_RETURN_VAL_IF_FAIL (egl_display->egl_context, FALSE);
if (renderer->winsys_vtable->id != COGL_WINSYS_ID_EGL_KMS)
{
egl_attributes_from_framebuffer_config (display,
&framebuffer->config,
need_stencil,
@ -1267,7 +1207,6 @@ _cogl_winsys_onscreen_init (CoglOnscreen *onscreen,
g_return_val_if_fail (status == EGL_TRUE, TRUE);
framebuffer->samples_per_pixel = samples;
}
}
#ifdef COGL_HAS_EGL_PLATFORM_POWERVR_X11_SUPPORT
if (renderer->winsys_vtable->id == COGL_WINSYS_ID_EGL_X11)
@ -1449,12 +1388,10 @@ _cogl_winsys_onscreen_init (CoglOnscreen *onscreen,
#if defined (COGL_HAS_EGL_PLATFORM_POWERVR_NULL_SUPPORT) || \
defined (COGL_HAS_EGL_PLATFORM_ANDROID_SUPPORT) || \
defined (COGL_HAS_EGL_PLATFORM_GDL_SUPPORT) || \
defined (COGL_HAS_EGL_PLATFORM_KMS_SUPPORT)
defined (COGL_HAS_EGL_PLATFORM_GDL_SUPPORT)
case COGL_WINSYS_ID_EGL_NULL:
case COGL_WINSYS_ID_EGL_ANDROID:
case COGL_WINSYS_ID_EGL_GDL:
case COGL_WINSYS_ID_EGL_KMS:
if (egl_display->have_onscreen)
{
@ -1464,19 +1401,6 @@ _cogl_winsys_onscreen_init (CoglOnscreen *onscreen,
return FALSE;
}
#ifdef COGL_HAS_EGL_PLATFORM_KMS_SUPPORT
if (renderer->winsys_vtable->id == COGL_WINSYS_ID_EGL_KMS)
{
CoglContext *context = cogl_framebuffer_get_context (framebuffer);
if (!_cogl_winsys_kms_onscreen_init (context,
&egl_renderer->kms_renderer,
&egl_display->kms_display,
&egl_onscreen->kms_onscreen,
error))
return FALSE;
}
else
#endif
egl_onscreen->egl_surface = egl_display->egl_surface;
_cogl_framebuffer_winsys_update_size (framebuffer,
@ -1514,8 +1438,7 @@ _cogl_winsys_onscreen_deinit (CoglOnscreen *onscreen)
/* If we never successfully allocated then there's nothing to do */
if (egl_onscreen == NULL)
return;
if (renderer->winsys_vtable->id != COGL_WINSYS_ID_EGL_KMS &&
egl_onscreen->egl_surface != EGL_NO_SURFACE)
if (egl_onscreen->egl_surface != EGL_NO_SURFACE)
{
if (eglDestroySurface (egl_renderer->edpy, egl_onscreen->egl_surface)
== EGL_FALSE)
@ -1558,11 +1481,6 @@ _cogl_winsys_onscreen_deinit (CoglOnscreen *onscreen)
}
#endif
#ifdef COGL_HAS_EGL_PLATFORM_KMS_SUPPORT
_cogl_winsys_kms_onscreen_deinit (&egl_renderer->kms_renderer,
&egl_onscreen->kms_onscreen);
#endif
g_slice_free (CoglOnscreenEGL, onscreen->winsys);
onscreen->winsys = NULL;
}
@ -1575,15 +1493,6 @@ _cogl_winsys_onscreen_bind (CoglOnscreen *onscreen)
CoglRenderer *renderer = context->display->renderer;
CoglRendererEGL *egl_renderer = renderer->winsys;
#ifdef COGL_HAS_EGL_PLATFORM_KMS_SUPPORT
if (renderer->winsys_vtable->id == COGL_WINSYS_ID_EGL_KMS)
{
_cogl_winsys_kms_bind (&egl_renderer->kms_renderer,
&egl_display->kms_display);
return;
}
#endif
#if defined (COGL_HAS_EGL_PLATFORM_POWERVR_NULL_SUPPORT) || \
defined (COGL_HAS_EGL_PLATFORM_GDL_SUPPORT) || \
defined (COGL_HAS_EGL_PLATFORM_ANDROID_SUPPORT) || \
@ -1647,8 +1556,6 @@ _cogl_winsys_onscreen_swap_region (CoglOnscreen *onscreen,
int *rectangles = g_alloca (sizeof (int) * n_rectangles * 4);
int i;
if (renderer->winsys_vtable->id != COGL_WINSYS_ID_EGL_KMS)
{
/* eglSwapBuffersRegion expects rectangles relative to the
* bottom left corner but we are given rectangles relative to
* the top left so we need to flip them... */
@ -1672,7 +1579,6 @@ _cogl_winsys_onscreen_swap_region (CoglOnscreen *onscreen,
n_rectangles,
rectangles) == EGL_FALSE)
g_warning ("Error reported by eglSwapBuffersRegion");
}
#endif
}
@ -1703,19 +1609,6 @@ _cogl_winsys_onscreen_swap_buffers (CoglOnscreen *onscreen)
CoglRenderer *renderer = context->display->renderer;
CoglRendererEGL *egl_renderer = renderer->winsys;
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
#ifdef COGL_HAS_EGL_PLATFORM_KMS_SUPPORT
CoglDisplayEGL *egl_display = context->display->winsys;
#endif
#ifdef COGL_HAS_EGL_PLATFORM_KMS_SUPPORT
if (renderer->winsys_vtable->id == COGL_WINSYS_ID_EGL_KMS)
{
_cogl_winsys_kms_swap_buffers (&egl_renderer->kms_renderer,
&egl_display->kms_display,
&egl_onscreen->kms_onscreen);
return;
}
#endif
/* The specification for EGL (at least in 1.4) says that the surface
needs to be bound to the current context for the swap to work
@ -1761,10 +1654,6 @@ static void
_cogl_winsys_onscreen_update_swap_throttled (CoglOnscreen *onscreen)
{
CoglContext *context = COGL_FRAMEBUFFER (onscreen)->context;
CoglRenderer *renderer = context->display->renderer;
if (renderer->winsys_vtable->id != COGL_WINSYS_ID_EGL_KMS)
{
CoglContextEGL *egl_context = context->winsys;
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
@ -1772,7 +1661,6 @@ _cogl_winsys_onscreen_update_swap_throttled (CoglOnscreen *onscreen)
return;
egl_context->current_surface = EGL_NO_SURFACE;
}
_cogl_winsys_onscreen_bind (onscreen);
}

426
cogl/winsys/cogl-winsys-kms.c
View File

@ -1,426 +0,0 @@
/*
* 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/>.
*
* Some code inspired by mesa demos eglkms.c.
*
* Authors:
* Rob Bradford <rob@linux.intel.com>
* Kristian Høgsberg (from eglkms.c)
* Benjamin Franzke (from eglkms.c)
*/
#include <GL/gl.h>
#include <GL/glext.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <fcntl.h>
#include <unistd.h>
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "cogl.h"
#include "cogl-util.h"
#include "cogl-winsys-egl-private.h"
#include "cogl-winsys-private.h"
#include "cogl-feature-private.h"
#include "cogl-context-private.h"
#include "cogl-framebuffer.h"
#include "cogl-onscreen-private.h"
#include "cogl-swap-chain-private.h"
#include "cogl-renderer-private.h"
#include "cogl-private.h"
#include "cogl-winsys-kms.h"
static const char device_name[] = "/dev/dri/card0";
gboolean
_cogl_winsys_kms_connect (CoglRendererKMS *kms_renderer,
GError **error)
{
EGLint major, minor;
kms_renderer->fd = open (device_name, O_RDWR);
if (kms_renderer->fd < 0)
{
/* Probably permissions error */
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"Couldn't open %s", device_name);
return FALSE;
}
kms_renderer->gbm = gbm_create_device (kms_renderer->fd);
if (kms_renderer->gbm == NULL)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"Couldn't create gbm device");
goto close_fd;
}
kms_renderer->dpy = eglGetDisplay ((EGLNativeDisplayType)kms_renderer->gbm);
if (kms_renderer->dpy == EGL_NO_DISPLAY)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"Couldn't get eglDisplay");
goto destroy_gbm_device;
}
if (!eglInitialize (kms_renderer->dpy, &major, &minor))
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"Couldn't initialize EGL");
goto egl_terminate;
}
return TRUE;
egl_terminate:
eglTerminate (kms_renderer->dpy);
destroy_gbm_device:
gbm_device_destroy (kms_renderer->gbm);
close_fd:
close (kms_renderer->fd);
return FALSE;
}
gboolean
_cogl_winsys_kms_display_setup (CoglDisplay *display, GError **error)
{
CoglDisplayEGL *egl_display = display->winsys;
CoglDisplayKMS *kms_display = &egl_display->kms_display;
CoglRendererEGL *egl_renderer = display->renderer->winsys;
CoglRendererKMS *kms_renderer = &egl_renderer->kms_renderer;
CoglEGLWinsysFeature surfaceless_feature = 0;
const char *surfaceless_feature_name = "";
drmModeRes *resources;
drmModeConnector *connector;
drmModeEncoder *encoder;
int i;
switch (display->renderer->driver)
{
case COGL_DRIVER_GL:
surfaceless_feature = COGL_EGL_WINSYS_FEATURE_SURFACELESS_OPENGL;
surfaceless_feature_name = "opengl";
break;
case COGL_DRIVER_GLES1:
surfaceless_feature = COGL_EGL_WINSYS_FEATURE_SURFACELESS_GLES1;
surfaceless_feature_name = "gles1";
break;
case COGL_DRIVER_GLES2:
surfaceless_feature = COGL_EGL_WINSYS_FEATURE_SURFACELESS_GLES2;
surfaceless_feature_name = "gles2";
break;
}
if (!(egl_renderer->private_features & surfaceless_feature))
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"EGL_KHR_surfaceless_%s extension not available",
surfaceless_feature_name);
return FALSE;
}
resources = drmModeGetResources (kms_renderer->fd);
if (!resources)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"drmModeGetResources failed");
return FALSE;
}
for (i = 0; i < resources->count_connectors; i++)
{
connector = drmModeGetConnector (kms_renderer->fd, resources->connectors[i]);
if (connector == NULL)
continue;
if (connector->connection == DRM_MODE_CONNECTED &&
connector->count_modes > 0)
break;
drmModeFreeConnector(connector);
}
if (i == resources->count_connectors)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"No currently active connector found");
return FALSE;
}
for (i = 0; i < resources->count_encoders; i++)
{
encoder = drmModeGetEncoder (kms_renderer->fd, resources->encoders[i]);
if (encoder == NULL)
continue;
if (encoder->encoder_id == connector->encoder_id)
break;
drmModeFreeEncoder (encoder);
}
kms_display->saved_crtc = drmModeGetCrtc (kms_renderer->fd,
encoder->crtc_id);
kms_display->connector = connector;
kms_display->encoder = encoder;
kms_display->mode = connector->modes[0];
kms_display->width = kms_display->mode.hdisplay;
kms_display->height = kms_display->mode.vdisplay;
return TRUE;
}
gboolean
_cogl_winsys_kms_create_context (CoglRenderer *renderer,
CoglDisplay *display,
GError **error)
{
CoglRendererEGL *egl_renderer = renderer->winsys;
CoglDisplayEGL *egl_display = display->winsys;
CoglRendererKMS *kms_renderer = &egl_renderer->kms_renderer;
CoglDisplayKMS *kms_display = &egl_display->kms_display;
EGLint attribs[3];
if (renderer->driver == COGL_DRIVER_GLES2)
{
attribs[0] = EGL_CONTEXT_CLIENT_VERSION;
attribs[1] = 2;
attribs[2] = EGL_NONE;
}
else
attribs[0] = EGL_NONE;
kms_display->egl_context = eglCreateContext (kms_renderer->dpy,
NULL,
EGL_NO_CONTEXT,
attribs);
if (kms_display->egl_context == NULL)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_CONTEXT,
"Couldn't create EGL context");
return FALSE;
}
if (!eglMakeCurrent (kms_renderer->dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, kms_display->egl_context))
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_CONTEXT,
"Failed to make context current");
return FALSE;
}
return TRUE;
}
gboolean
_cogl_winsys_kms_onscreen_init (CoglContext *context,
CoglRendererKMS *kms_renderer,
CoglDisplayKMS *kms_display,
CoglOnscreenKMS *kms_onscreen,
GError **error)
{
int i;
kms_onscreen->cogl_context = context;
context->glGenRenderbuffers (2, kms_onscreen->color_rb);
for (i = 0; i < 2; i++)
{
uint32_t handle, stride;
kms_onscreen->bo[i] =
gbm_bo_create (kms_renderer->gbm,
kms_display->mode.hdisplay, kms_display->mode.vdisplay,
GBM_BO_FORMAT_XRGB8888,
GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
if (!kms_onscreen->bo[i])
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_CONTEXT,
"Failed to allocate buffer");
return FALSE;
}
kms_onscreen->image[i] = _cogl_egl_create_image (context,
EGL_NATIVE_PIXMAP_KHR,
kms_onscreen->bo[i],
NULL);
if (kms_onscreen->image[i] == EGL_NO_IMAGE_KHR)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_CONTEXT,
"Failed to create EGL image");
return FALSE;
}
context->glBindRenderbuffer (GL_RENDERBUFFER_EXT, kms_onscreen->color_rb[i]);
context->glEGLImageTargetRenderbufferStorage (GL_RENDERBUFFER, kms_onscreen->image[i]);
context->glBindRenderbuffer (GL_RENDERBUFFER_EXT, 0);
handle = gbm_bo_get_handle (kms_onscreen->bo[i]).u32;
stride = gbm_bo_get_pitch (kms_onscreen->bo[i]);
if (drmModeAddFB (kms_renderer->fd,
kms_display->mode.hdisplay, kms_display->mode.vdisplay,
24, 32,
stride,
handle,
&kms_onscreen->fb_id[i]) != 0)
{
g_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_CONTEXT,
"Failed to create framebuffer from buffer");
return FALSE;
}
}
context->glGenFramebuffers (1, &kms_onscreen->fb);
context->glBindFramebuffer (GL_FRAMEBUFFER_EXT, kms_onscreen->fb);
context->glGenRenderbuffers (1, &kms_onscreen->depth_rb);
context->glBindRenderbuffer (GL_RENDERBUFFER_EXT, kms_onscreen->depth_rb);
context->glRenderbufferStorage (GL_RENDERBUFFER_EXT,
GL_DEPTH_COMPONENT16,
kms_display->mode.hdisplay,
kms_display->mode.vdisplay);
context->glBindRenderbuffer (GL_RENDERBUFFER_EXT, 0);
context->glFramebufferRenderbuffer (GL_FRAMEBUFFER_EXT,
GL_DEPTH_ATTACHMENT_EXT,
GL_RENDERBUFFER_EXT,
kms_onscreen->depth_rb);
kms_onscreen->current_frame = 0;
_cogl_winsys_kms_swap_buffers (kms_renderer, kms_display, kms_onscreen);
return TRUE;
}
void
_cogl_winsys_kms_onscreen_deinit (CoglRendererKMS *kms_renderer,
CoglOnscreenKMS *kms_onscreen)
{
int i;
CoglContext *context = kms_onscreen->cogl_context;
context->glBindFramebuffer (GL_FRAMEBUFFER_EXT, kms_onscreen->fb);
context->glFramebufferRenderbuffer (GL_FRAMEBUFFER_EXT,
GL_COLOR_ATTACHMENT0_EXT,
GL_RENDERBUFFER_EXT,
0);
context->glDeleteRenderbuffers(2, kms_onscreen->color_rb);
context->glFramebufferRenderbuffer (GL_FRAMEBUFFER_EXT,
GL_DEPTH_ATTACHMENT_EXT,
GL_RENDERBUFFER_EXT,
0);
context->glDeleteRenderbuffers(1, &kms_onscreen->depth_rb);
for (i = 0; i < 2; i++)
{
drmModeRmFB (kms_renderer->fd, kms_onscreen->fb_id[i]);
_cogl_egl_destroy_image (context, kms_onscreen->image[i]);
gbm_bo_destroy (kms_onscreen->bo[i]);
}
}
gboolean
_cogl_winsys_kms_destroy_context (CoglRendererKMS *kms_renderer,
CoglDisplayKMS *kms_display,
GError **error)
{
int ret;
/* Restore the saved CRTC - this failing should not propagate an error */
ret = drmModeSetCrtc (kms_renderer->fd,
kms_display->saved_crtc->crtc_id,
kms_display->saved_crtc->buffer_id,
kms_display->saved_crtc->x, kms_display->saved_crtc->y,
&kms_display->connector->connector_id, 1,
&kms_display->saved_crtc->mode);
if (ret)
{
g_critical (G_STRLOC ": Error restoring saved CRTC");
}
drmModeFreeCrtc (kms_display->saved_crtc);
return TRUE;
}
void
_cogl_winsys_kms_swap_buffers (CoglRendererKMS *kms_renderer,
CoglDisplayKMS *kms_display,
CoglOnscreenKMS *kms_onscreen)
{
CoglContext *context = kms_onscreen->cogl_context;
if (drmModeSetCrtc (kms_renderer->fd,
kms_display->encoder->crtc_id,
kms_onscreen->fb_id[kms_onscreen->current_frame],
0, 0,
&kms_display->connector->connector_id,
1,
&kms_display->mode) != 0)
{
g_error (G_STRLOC ": Setting CRTC failed");
}
/* Update frame that we're drawing to be the new one */
kms_onscreen->current_frame ^= 1;
context->glBindFramebuffer (GL_FRAMEBUFFER_EXT, kms_onscreen->fb);
context->glFramebufferRenderbuffer (GL_FRAMEBUFFER_EXT,
GL_COLOR_ATTACHMENT0_EXT,
GL_RENDERBUFFER_EXT,
kms_onscreen->color_rb[kms_onscreen->current_frame]);
if (context->glCheckFramebufferStatus (GL_FRAMEBUFFER_EXT) !=
GL_FRAMEBUFFER_COMPLETE)
{
g_error (G_STRLOC ": FBO not complete");
}
}
void
_cogl_winsys_kms_bind (CoglRendererKMS *kms_renderer,
CoglDisplayKMS *kms_display)
{
eglMakeCurrent (kms_renderer->dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, kms_display->egl_context);
}

103
cogl/winsys/cogl-winsys-kms.h
View File

@ -1,103 +0,0 @@
/*
* 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:
* Rob Bradford <rob@linux.intel.com>
*/
#ifndef _COGL_WINSYS_KMS_PRIVATE_H_
#define _COGL_WINSYS_KMS_PRIVATE_H_
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <drm.h>
#include <xf86drmMode.h>
#include <gbm.h>
#include <glib.h>
#include "cogl-winsys-private.h"
typedef struct _CoglRendererKMS
{
int fd;
struct gbm_device *gbm;
EGLDisplay *dpy;
} CoglRendererKMS;
typedef struct _CoglDisplayKMS
{
EGLContext egl_context;
drmModeConnector *connector;
drmModeEncoder *encoder;
drmModeModeInfo mode;
drmModeCrtcPtr saved_crtc;
int width, height;
} CoglDisplayKMS;
typedef struct _CoglOnscreenKMS
{
CoglContext *cogl_context;
uint32_t fb_id[2];
struct gbm_bo *bo[2];
unsigned int fb, color_rb[2], depth_rb;
EGLImageKHR image[2];
int current_frame;
} CoglOnscreenKMS;
gboolean
_cogl_winsys_kms_connect (CoglRendererKMS *kms_renderer,
GError **error);
gboolean
_cogl_winsys_kms_onscreen_init (CoglContext *context,
CoglRendererKMS *kms_renderer,
CoglDisplayKMS *kms_display,
CoglOnscreenKMS *kms_onscreen,
GError **error);
void
_cogl_winsys_kms_onscreen_deinit (CoglRendererKMS *kms_renderer,
CoglOnscreenKMS *kms_onscreen);
gboolean
_cogl_winsys_kms_display_setup (CoglDisplay *display,
GError **error);
void
_cogl_winsys_kms_swap_buffers (CoglRendererKMS *kms_renderer,
CoglDisplayKMS *kms_display,
CoglOnscreenKMS *kms_onscreen);
void
_cogl_winsys_kms_bind (CoglRendererKMS *kms_renderer,
CoglDisplayKMS *kms_display);
gboolean
_cogl_winsys_kms_create_context (CoglRenderer *renderer,
CoglDisplay *display,
GError **error);
gboolean
_cogl_winsys_kms_destroy_context (CoglRendererKMS *kms_renderer,
CoglDisplayKMS *kms_display,
GError **error);
#endif /* _COGL_WINSYS_KMS_PRIVATE_H_ */