mesa/src/egl/drivers/dri2/egl_dri2.c

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2010-02-03 15:18:28 +00:00
/*
* Copyright © 2010 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Authors:
* Kristian Høgsberg <krh@bitplanet.net>
*/
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <limits.h>
#include <dlfcn.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
#include <xf86drm.h>
#include <GL/gl.h>
#include <GL/internal/dri_interface.h>
#include <xcb/xcb.h>
#include <xcb/dri2.h>
#include <xcb/xfixes.h>
#include <X11/Xlib-xcb.h>
#include <glapi/glapi.h>
#include "eglconfig.h"
#include "eglcontext.h"
#include "egldisplay.h"
#include "egldriver.h"
#include "eglcurrent.h"
#include "egllog.h"
#include "eglsurface.h"
#include "eglimage.h"
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struct dri2_egl_driver
{
_EGLDriver base;
void (*glFlush)(void);
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};
struct dri2_egl_display
{
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xcb_connection_t *conn;
int dri2_major;
int dri2_minor;
__DRIscreen *dri_screen;
const __DRIconfig **driver_configs;
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void *driver;
__DRIcoreExtension *core;
__DRIdri2Extension *dri2;
__DRI2flushExtension *flush;
__DRItexBufferExtension *tex_buffer;
__DRIimageExtension *image;
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int fd;
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char *device_name;
char *driver_name;
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__DRIdri2LoaderExtension loader_extension;
__DRIimageLookupExtension image_lookup_extension;
const __DRIextension *extensions[3];
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};
struct dri2_egl_context
{
_EGLContext base;
__DRIcontext *dri_context;
};
struct dri2_egl_surface
{
_EGLSurface base;
__DRIdrawable *dri_drawable;
xcb_drawable_t drawable;
__DRIbuffer buffers[5];
int buffer_count;
xcb_xfixes_region_t region;
int have_fake_front;
int swap_interval;
};
struct dri2_egl_config
{
_EGLConfig base;
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const __DRIconfig *dri_config;
};
struct dri2_egl_image
{
_EGLImage base;
__DRIimage *dri_image;
};
/* standard typecasts */
_EGL_DRIVER_STANDARD_TYPECASTS(dri2_egl)
_EGL_DRIVER_TYPECAST(dri2_egl_image, _EGLImage, obj)
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EGLint dri2_to_egl_attribute_map[] = {
0,
EGL_BUFFER_SIZE, /* __DRI_ATTRIB_BUFFER_SIZE */
EGL_LEVEL, /* __DRI_ATTRIB_LEVEL */
EGL_RED_SIZE, /* __DRI_ATTRIB_RED_SIZE */
EGL_GREEN_SIZE, /* __DRI_ATTRIB_GREEN_SIZE */
EGL_BLUE_SIZE, /* __DRI_ATTRIB_BLUE_SIZE */
EGL_LUMINANCE_SIZE, /* __DRI_ATTRIB_LUMINANCE_SIZE */
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EGL_ALPHA_SIZE, /* __DRI_ATTRIB_ALPHA_SIZE */
0, /* __DRI_ATTRIB_ALPHA_MASK_SIZE */
EGL_DEPTH_SIZE, /* __DRI_ATTRIB_DEPTH_SIZE */
EGL_STENCIL_SIZE, /* __DRI_ATTRIB_STENCIL_SIZE */
0, /* __DRI_ATTRIB_ACCUM_RED_SIZE */
0, /* __DRI_ATTRIB_ACCUM_GREEN_SIZE */
0, /* __DRI_ATTRIB_ACCUM_BLUE_SIZE */
0, /* __DRI_ATTRIB_ACCUM_ALPHA_SIZE */
EGL_SAMPLE_BUFFERS, /* __DRI_ATTRIB_SAMPLE_BUFFERS */
EGL_SAMPLES, /* __DRI_ATTRIB_SAMPLES */
0, /* __DRI_ATTRIB_RENDER_TYPE, */
0, /* __DRI_ATTRIB_CONFIG_CAVEAT */
0, /* __DRI_ATTRIB_CONFORMANT */
0, /* __DRI_ATTRIB_DOUBLE_BUFFER */
0, /* __DRI_ATTRIB_STEREO */
0, /* __DRI_ATTRIB_AUX_BUFFERS */
0, /* __DRI_ATTRIB_TRANSPARENT_TYPE */
0, /* __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE */
0, /* __DRI_ATTRIB_TRANSPARENT_RED_VALUE */
0, /* __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE */
0, /* __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE */
0, /* __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE */
0, /* __DRI_ATTRIB_FLOAT_MODE */
0, /* __DRI_ATTRIB_RED_MASK */
0, /* __DRI_ATTRIB_GREEN_MASK */
0, /* __DRI_ATTRIB_BLUE_MASK */
0, /* __DRI_ATTRIB_ALPHA_MASK */
EGL_MAX_PBUFFER_WIDTH, /* __DRI_ATTRIB_MAX_PBUFFER_WIDTH */
EGL_MAX_PBUFFER_HEIGHT, /* __DRI_ATTRIB_MAX_PBUFFER_HEIGHT */
EGL_MAX_PBUFFER_PIXELS, /* __DRI_ATTRIB_MAX_PBUFFER_PIXELS */
0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH */
0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT */
0, /* __DRI_ATTRIB_VISUAL_SELECT_GROUP */
0, /* __DRI_ATTRIB_SWAP_METHOD */
EGL_MAX_SWAP_INTERVAL, /* __DRI_ATTRIB_MAX_SWAP_INTERVAL */
EGL_MIN_SWAP_INTERVAL, /* __DRI_ATTRIB_MIN_SWAP_INTERVAL */
0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGB */
0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA */
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0, /* __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE */
0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
0, /* __DRI_ATTRIB_YINVERTED */
};
static void
dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
int depth, xcb_visualtype_t *visual)
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{
struct dri2_egl_config *conf;
struct dri2_egl_display *dri2_dpy;
_EGLConfig base;
unsigned int attrib, value, double_buffer;
EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
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int i;
dri2_dpy = disp->DriverData;
_eglInitConfig(&base, disp, id);
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i = 0;
while (dri2_dpy->core->indexConfigAttrib(dri_config, i++, &attrib, &value)) {
switch (attrib) {
case __DRI_ATTRIB_RENDER_TYPE:
if (value & __DRI_ATTRIB_RGBA_BIT)
value = EGL_RGB_BUFFER;
else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
value = EGL_LUMINANCE_BUFFER;
else
/* not valid */;
_eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
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break;
case __DRI_ATTRIB_CONFIG_CAVEAT:
if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
value = EGL_NON_CONFORMANT_CONFIG;
else if (value & __DRI_ATTRIB_SLOW_BIT)
value = EGL_SLOW_CONFIG;
else
value = EGL_NONE;
_eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
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break;
case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
bind_to_texture_rgb = value;
break;
case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
bind_to_texture_rgba = value;
break;
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case __DRI_ATTRIB_DOUBLE_BUFFER:
double_buffer = value;
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break;
default:
key = dri2_to_egl_attribute_map[attrib];
if (key != 0)
_eglSetConfigKey(&base, key, value);
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break;
}
}
/* In EGL, double buffer or not isn't a config attribute. Pixmaps
* surfaces are always single buffered, pbuffer surfaces are always
* back buffers and windows can be either, selected by passing an
* attribute at window surface construction time. To support this
* we ignore all double buffer configs and manipulate the buffer we
* return in the getBuffer callback to get the behaviour we want. */
if (double_buffer)
return;
if (visual != NULL) {
if (depth != _eglGetConfigKey(&base, EGL_BUFFER_SIZE))
return;
_eglSetConfigKey(&base, EGL_SURFACE_TYPE,
EGL_WINDOW_BIT | EGL_PIXMAP_BIT | EGL_PBUFFER_BIT |
EGL_SWAP_BEHAVIOR_PRESERVED_BIT);
_eglSetConfigKey(&base, EGL_NATIVE_VISUAL_ID, visual->visual_id);
_eglSetConfigKey(&base, EGL_NATIVE_VISUAL_TYPE, visual->_class);
} else {
_eglSetConfigKey(&base, EGL_SURFACE_TYPE,
EGL_PIXMAP_BIT | EGL_PBUFFER_BIT);
}
_eglSetConfigKey(&base, EGL_NATIVE_RENDERABLE, EGL_TRUE);
_eglSetConfigKey(&base, EGL_BIND_TO_TEXTURE_RGB, bind_to_texture_rgb);
if (_eglGetConfigKey(&base, EGL_ALPHA_SIZE) > 0)
_eglSetConfigKey(&base,
EGL_BIND_TO_TEXTURE_RGBA, bind_to_texture_rgba);
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/* EGL_OPENGL_ES_BIT, EGL_OPENVG_BIT, EGL_OPENGL_ES2_BIT */
_eglSetConfigKey(&base, EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT);
_eglSetConfigKey(&base, EGL_CONFORMANT, EGL_OPENGL_BIT);
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if (!_eglValidateConfig(&base, EGL_FALSE)) {
_eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
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return;
}
conf = malloc(sizeof *conf);
if (conf != NULL) {
memcpy(&conf->base, &base, sizeof base);
conf->dri_config = dri_config;
_eglAddConfig(disp, &conf->base);
}
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}
/**
* Process list of buffer received from the server
*
* Processes the list of buffers received in a reply from the server to either
* \c DRI2GetBuffers or \c DRI2GetBuffersWithFormat.
*/
static void
dri2_process_buffers(struct dri2_egl_surface *dri2_surf,
xcb_dri2_dri2_buffer_t *buffers, unsigned count)
{
struct dri2_egl_display *dri2_dpy =
dri2_egl_display(dri2_surf->base.Resource.Display);
xcb_rectangle_t rectangle;
int i;
dri2_surf->buffer_count = count;
dri2_surf->have_fake_front = 0;
/* This assumes the DRI2 buffer attachment tokens matches the
* __DRIbuffer tokens. */
for (i = 0; i < count; i++) {
dri2_surf->buffers[i].attachment = buffers[i].attachment;
dri2_surf->buffers[i].name = buffers[i].name;
dri2_surf->buffers[i].pitch = buffers[i].pitch;
dri2_surf->buffers[i].cpp = buffers[i].cpp;
dri2_surf->buffers[i].flags = buffers[i].flags;
/* We only use the DRI drivers single buffer configs. This
* means that if we try to render to a window, DRI2 will give us
* the fake front buffer, which we'll use as a back buffer.
* Note that EGL doesn't require that several clients rendering
* to the same window must see the same aux buffers. */
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if (dri2_surf->buffers[i].attachment == __DRI_BUFFER_FAKE_FRONT_LEFT)
dri2_surf->have_fake_front = 1;
}
if (dri2_surf->region != XCB_NONE)
xcb_xfixes_destroy_region(dri2_dpy->conn, dri2_surf->region);
rectangle.x = 0;
rectangle.y = 0;
rectangle.width = dri2_surf->base.Width;
rectangle.height = dri2_surf->base.Height;
dri2_surf->region = xcb_generate_id(dri2_dpy->conn);
xcb_xfixes_create_region(dri2_dpy->conn, dri2_surf->region, 1, &rectangle);
}
static __DRIbuffer *
dri2_get_buffers(__DRIdrawable * driDrawable,
int *width, int *height,
unsigned int *attachments, int count,
int *out_count, void *loaderPrivate)
{
struct dri2_egl_surface *dri2_surf = loaderPrivate;
struct dri2_egl_display *dri2_dpy =
dri2_egl_display(dri2_surf->base.Resource.Display);
xcb_dri2_dri2_buffer_t *buffers;
xcb_dri2_get_buffers_reply_t *reply;
xcb_dri2_get_buffers_cookie_t cookie;
cookie = xcb_dri2_get_buffers_unchecked (dri2_dpy->conn,
dri2_surf->drawable,
count, count, attachments);
reply = xcb_dri2_get_buffers_reply (dri2_dpy->conn, cookie, NULL);
buffers = xcb_dri2_get_buffers_buffers (reply);
if (buffers == NULL)
return NULL;
*out_count = reply->count;
dri2_surf->base.Width = *width = reply->width;
dri2_surf->base.Height = *height = reply->height;
dri2_process_buffers(dri2_surf, buffers, *out_count);
free(reply);
return dri2_surf->buffers;
}
static void
dri2_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate)
{
/* FIXME: Does EGL support front buffer rendering at all? */
#if 0
struct dri2_egl_surface *dri2_surf = loaderPrivate;
dri2WaitGL(dri2_surf);
#endif
}
static __DRIimage *
dri2_lookup_egl_image(__DRIcontext *context, void *image, void *data)
{
struct dri2_egl_context *dri2_ctx = data;
_EGLDisplay *disp = dri2_ctx->base.Resource.Display;
struct dri2_egl_image *dri2_img;
_EGLImage *img;
img = _eglLookupImage(image, disp);
if (img == NULL) {
_eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
return NULL;
}
dri2_img = dri2_egl_image(image);
return dri2_img->dri_image;
}
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static __DRIbuffer *
dri2_get_buffers_with_format(__DRIdrawable * driDrawable,
int *width, int *height,
unsigned int *attachments, int count,
int *out_count, void *loaderPrivate)
{
struct dri2_egl_surface *dri2_surf = loaderPrivate;
struct dri2_egl_display *dri2_dpy =
dri2_egl_display(dri2_surf->base.Resource.Display);
xcb_dri2_dri2_buffer_t *buffers;
xcb_dri2_get_buffers_with_format_reply_t *reply;
xcb_dri2_get_buffers_with_format_cookie_t cookie;
xcb_dri2_attach_format_t *format_attachments;
format_attachments = (xcb_dri2_attach_format_t *) attachments;
cookie = xcb_dri2_get_buffers_with_format_unchecked (dri2_dpy->conn,
dri2_surf->drawable,
count, count,
format_attachments);
reply = xcb_dri2_get_buffers_with_format_reply (dri2_dpy->conn,
cookie, NULL);
if (reply == NULL)
return NULL;
buffers = xcb_dri2_get_buffers_with_format_buffers (reply);
dri2_surf->base.Width = *width = reply->width;
dri2_surf->base.Height = *height = reply->height;
*out_count = reply->count;
dri2_process_buffers(dri2_surf, buffers, *out_count);
free(reply);
return dri2_surf->buffers;
}
#ifdef GLX_USE_TLS
static const char dri_driver_format[] = "%.*s/tls/%s_dri.so";
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#else
static const char dri_driver_format[] = "%.*s/%s_dri.so";
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#endif
static const char dri_driver_path[] = DEFAULT_DRIVER_DIR;
struct dri2_extension_match {
const char *name;
int version;
int offset;
};
static struct dri2_extension_match dri2_driver_extensions[] = {
{ __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
{ __DRI_DRI2, 1, offsetof(struct dri2_egl_display, dri2) },
{ NULL }
};
static struct dri2_extension_match dri2_core_extensions[] = {
{ __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
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{ __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
{ __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
{ NULL }
};
static EGLBoolean
dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
struct dri2_extension_match *matches,
const __DRIextension **extensions)
{
int i, j, ret = EGL_TRUE;
void *field;
for (i = 0; extensions[i]; i++) {
_eglLog(_EGL_DEBUG, "DRI2: found extension `%s'", extensions[i]->name);
for (j = 0; matches[j].name; j++) {
if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
extensions[i]->version >= matches[j].version) {
field = ((char *) dri2_dpy + matches[j].offset);
*(const __DRIextension **) field = extensions[i];
_eglLog(_EGL_INFO, "DRI2: found extension %s version %d",
extensions[i]->name, extensions[i]->version);
}
}
}
for (j = 0; matches[j].name; j++) {
field = ((char *) dri2_dpy + matches[j].offset);
if (*(const __DRIextension **) field == NULL) {
_eglLog(_EGL_FATAL, "DRI2: did not find extension %s version %d",
matches[j].name, matches[j].version);
ret = EGL_FALSE;
}
}
return ret;
}
static char *
dri2_strndup(const char *s, int length)
{
char *d;
d = malloc(length + 1);
if (d == NULL)
return NULL;
memcpy(d, s, length);
d[length] = '\0';
return d;
}
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static EGLBoolean
dri2_connect(struct dri2_egl_display *dri2_dpy)
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{
xcb_xfixes_query_version_reply_t *xfixes_query;
xcb_xfixes_query_version_cookie_t xfixes_query_cookie;
xcb_dri2_query_version_reply_t *dri2_query;
xcb_dri2_query_version_cookie_t dri2_query_cookie;
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xcb_dri2_connect_reply_t *connect;
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xcb_dri2_connect_cookie_t connect_cookie;
xcb_generic_error_t *error;
xcb_screen_iterator_t s;
xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_xfixes_id);
xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_dri2_id);
xfixes_query_cookie = xcb_xfixes_query_version(dri2_dpy->conn,
XCB_XFIXES_MAJOR_VERSION,
XCB_XFIXES_MINOR_VERSION);
dri2_query_cookie = xcb_dri2_query_version (dri2_dpy->conn,
XCB_DRI2_MAJOR_VERSION,
XCB_DRI2_MINOR_VERSION);
s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
connect_cookie = xcb_dri2_connect_unchecked (dri2_dpy->conn,
s.data->root,
XCB_DRI2_DRIVER_TYPE_DRI);
xfixes_query =
xcb_xfixes_query_version_reply (dri2_dpy->conn,
xfixes_query_cookie, &error);
if (xfixes_query == NULL ||
error != NULL || xfixes_query->major_version < 2) {
_eglLog(_EGL_FATAL, "DRI2: failed to query xfixes version");
free(error);
return EGL_FALSE;
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}
free(xfixes_query);
dri2_query =
xcb_dri2_query_version_reply (dri2_dpy->conn, dri2_query_cookie, &error);
if (dri2_query == NULL || error != NULL) {
_eglLog(_EGL_FATAL, "DRI2: failed to query version");
free(error);
return EGL_FALSE;
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}
dri2_dpy->dri2_major = dri2_query->major_version;
dri2_dpy->dri2_minor = dri2_query->minor_version;
free(dri2_query);
connect = xcb_dri2_connect_reply (dri2_dpy->conn, connect_cookie, NULL);
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if (connect == NULL ||
connect->driver_name_length + connect->device_name_length == 0) {
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_eglLog(_EGL_FATAL, "DRI2: failed to authenticate");
return EGL_FALSE;
}
dri2_dpy->device_name =
dri2_strndup(xcb_dri2_connect_device_name (connect),
xcb_dri2_connect_device_name_length (connect));
dri2_dpy->driver_name =
dri2_strndup(xcb_dri2_connect_driver_name (connect),
xcb_dri2_connect_driver_name_length (connect));
if (dri2_dpy->device_name == NULL || dri2_dpy->driver_name == NULL) {
free(dri2_dpy->device_name);
free(dri2_dpy->driver_name);
free(connect);
return EGL_FALSE;
}
free(connect);
return EGL_TRUE;
}
static EGLBoolean
dri2_authenticate(struct dri2_egl_display *dri2_dpy)
{
xcb_dri2_authenticate_reply_t *authenticate;
xcb_dri2_authenticate_cookie_t authenticate_cookie;
xcb_screen_iterator_t s;
drm_magic_t magic;
if (drmGetMagic(dri2_dpy->fd, &magic)) {
_eglLog(_EGL_FATAL, "DRI2: failed to get drm magic");
return EGL_FALSE;
}
s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
authenticate_cookie =
xcb_dri2_authenticate_unchecked(dri2_dpy->conn, s.data->root, magic);
authenticate =
xcb_dri2_authenticate_reply(dri2_dpy->conn, authenticate_cookie, NULL);
if (authenticate == NULL || !authenticate->authenticated) {
_eglLog(_EGL_FATAL, "DRI2: failed to authenticate");
free(authenticate);
return EGL_FALSE;
}
free(authenticate);
return EGL_TRUE;
}
static EGLBoolean
dri2_add_configs_for_visuals(struct dri2_egl_display *dri2_dpy,
_EGLDisplay *disp)
{
xcb_screen_iterator_t s;
xcb_depth_iterator_t d;
xcb_visualtype_t *visuals;
int i, j, id;
s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
d = xcb_screen_allowed_depths_iterator(s.data);
id = 1;
while (d.rem > 0) {
EGLBoolean class_added[6] = { 0, };
visuals = xcb_depth_visuals(d.data);
for (i = 0; i < xcb_depth_visuals_length(d.data); i++) {
if (class_added[visuals[i]._class])
continue;
class_added[visuals[i]._class] = EGL_TRUE;
for (j = 0; dri2_dpy->driver_configs[j]; j++)
dri2_add_config(disp, dri2_dpy->driver_configs[j],
id++, d.data->depth, &visuals[i]);
}
xcb_depth_next(&d);
}
if (!disp->NumConfigs) {
_eglLog(_EGL_WARNING, "DRI2: failed to create any config");
return EGL_FALSE;
}
return EGL_TRUE;
}
/**
* Called via eglInitialize(), GLX_drv->API.Initialize().
*/
static EGLBoolean
dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp,
EGLint *major, EGLint *minor)
{
const __DRIextension **extensions;
struct dri2_egl_display *dri2_dpy;
char path[PATH_MAX], *search_paths, *p, *next, *end;
dri2_dpy = malloc(sizeof *dri2_dpy);
if (!dri2_dpy)
return _eglError(EGL_BAD_ALLOC, "eglInitialize");
disp->DriverData = (void *) dri2_dpy;
if (disp->NativeDisplay == NULL) {
dri2_dpy->conn = xcb_connect(0, 0);
if (!dri2_dpy->conn) {
_eglLog(_EGL_WARNING, "DRI2: xcb_connect failed");
goto cleanup_dpy;
}
} else {
dri2_dpy->conn = XGetXCBConnection(disp->NativeDisplay);
}
if (dri2_dpy->conn == NULL)
goto cleanup_conn;
if (dri2_dpy->conn) {
if (!dri2_connect(dri2_dpy))
goto cleanup_conn;
2010-02-03 15:18:28 +00:00
}
search_paths = NULL;
if (geteuid() == getuid()) {
/* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
search_paths = getenv("LIBGL_DRIVERS_PATH");
}
if (search_paths == NULL)
search_paths = DEFAULT_DRIVER_DIR;
dri2_dpy->driver = NULL;
end = search_paths + strlen(search_paths);
for (p = search_paths; p < end && dri2_dpy->driver == NULL; p = next + 1) {
next = strchr(p, ':');
if (next == NULL)
next = end;
snprintf(path, sizeof path,
dri_driver_format, (int) (next - p), p, dri2_dpy->driver_name);
2010-02-03 15:18:28 +00:00
dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
}
if (dri2_dpy->driver == NULL) {
_eglLog(_EGL_FATAL,
"DRI2: failed to open any driver (search paths %s)",
search_paths);
goto cleanup_conn;
2010-02-03 15:18:28 +00:00
}
_eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
if (extensions == NULL) {
_eglLog(_EGL_FATAL,
"DRI2: driver exports no extensions (%s)", dlerror());
2010-02-05 15:49:33 +00:00
goto cleanup_driver;
2010-02-03 15:18:28 +00:00
}
if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions))
2010-02-05 15:49:33 +00:00
goto cleanup_driver;
2010-02-03 15:18:28 +00:00
dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR);
2010-02-03 15:18:28 +00:00
if (dri2_dpy->fd == -1) {
_eglLog(_EGL_FATAL,
"DRI2: could not open %s (%s)", path, strerror(errno));
2010-02-05 15:49:33 +00:00
goto cleanup_driver;
2010-02-03 15:18:28 +00:00
}
if (dri2_dpy->conn) {
if (!dri2_authenticate(dri2_dpy))
goto cleanup_fd;
2010-02-03 15:18:28 +00:00
}
if (dri2_dpy->dri2_minor >= 1) {
dri2_dpy->loader_extension.base.name = __DRI_DRI2_LOADER;
dri2_dpy->loader_extension.base.version = 3;
dri2_dpy->loader_extension.getBuffers = dri2_get_buffers;
dri2_dpy->loader_extension.flushFrontBuffer = dri2_flush_front_buffer;
dri2_dpy->loader_extension.getBuffersWithFormat =
dri2_get_buffers_with_format;
} else {
dri2_dpy->loader_extension.base.name = __DRI_DRI2_LOADER;
dri2_dpy->loader_extension.base.version = 2;
dri2_dpy->loader_extension.getBuffers = dri2_get_buffers;
dri2_dpy->loader_extension.flushFrontBuffer = dri2_flush_front_buffer;
dri2_dpy->loader_extension.getBuffersWithFormat = NULL;
}
dri2_dpy->image_lookup_extension.base.name = __DRI_IMAGE_LOOKUP;
dri2_dpy->image_lookup_extension.base.version = 1;
dri2_dpy->image_lookup_extension.lookupEGLImage = dri2_lookup_egl_image;
2010-02-03 15:18:28 +00:00
dri2_dpy->extensions[0] = &dri2_dpy->loader_extension.base;
dri2_dpy->extensions[1] = &dri2_dpy->image_lookup_extension.base;
dri2_dpy->extensions[2] = NULL;
2010-02-03 15:18:28 +00:00
dri2_dpy->dri_screen =
dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd, dri2_dpy->extensions,
&dri2_dpy->driver_configs, dri2_dpy);
2010-02-03 15:18:28 +00:00
if (dri2_dpy->dri_screen == NULL) {
_eglLog(_EGL_FATAL, "DRI2: failed to create dri screen");
2010-02-05 15:49:33 +00:00
goto cleanup_fd;
2010-02-03 15:18:28 +00:00
}
extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
2010-02-05 15:49:33 +00:00
goto cleanup_dri_screen;
2010-02-03 15:18:28 +00:00
if (dri2_dpy->conn) {
if (!dri2_add_configs_for_visuals(dri2_dpy, disp))
goto cleanup_configs;
2010-02-03 15:18:28 +00:00
}
disp->ClientAPIsMask = EGL_OPENGL_BIT;
disp->Extensions.KHR_image_base = EGL_TRUE;
disp->Extensions.KHR_image_pixmap = EGL_TRUE;
disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
2010-02-03 15:18:28 +00:00
/* we're supporting EGL 1.4 */
*major = 1;
*minor = 4;
2010-02-03 15:18:28 +00:00
return EGL_TRUE;
2010-02-05 15:49:33 +00:00
cleanup_configs:
_eglCleanupDisplay(disp);
cleanup_dri_screen:
dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
cleanup_fd:
close(dri2_dpy->fd);
cleanup_driver:
dlclose(dri2_dpy->driver);
cleanup_conn:
if (disp->NativeDisplay == NULL)
xcb_disconnect(dri2_dpy->conn);
cleanup_dpy:
2010-02-03 15:18:28 +00:00
free(dri2_dpy);
2010-02-05 15:49:33 +00:00
2010-02-03 15:18:28 +00:00
return EGL_FALSE;
}
/**
* Called via eglTerminate(), drv->API.Terminate().
*/
static EGLBoolean
dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
_eglReleaseDisplayResources(drv, disp);
_eglCleanupDisplay(disp);
2010-02-05 15:49:33 +00:00
dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
2010-02-03 15:18:28 +00:00
close(dri2_dpy->fd);
dlclose(dri2_dpy->driver);
2010-02-05 15:49:33 +00:00
if (disp->NativeDisplay == NULL)
xcb_disconnect(dri2_dpy->conn);
2010-02-03 15:18:28 +00:00
free(dri2_dpy);
disp->DriverData = NULL;
return EGL_TRUE;
}
/**
* Called via eglCreateContext(), drv->API.CreateContext().
*/
static _EGLContext *
dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
_EGLContext *share_list, const EGLint *attrib_list)
{
struct dri2_egl_context *dri2_ctx;
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
dri2_ctx = malloc(sizeof *dri2_ctx);
if (!dri2_ctx) {
_eglError(EGL_BAD_ALLOC, "eglCreateContext");
return NULL;
}
2010-02-05 15:49:33 +00:00
if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
goto cleanup;
2010-02-03 15:18:28 +00:00
dri2_ctx->dri_context =
dri2_dpy->dri2->createNewContext(dri2_dpy->dri_screen,
dri2_config->dri_config,
dri2_ctx_shared ?
dri2_ctx_shared->dri_context : NULL,
dri2_ctx);
2010-02-05 15:49:33 +00:00
if (!dri2_ctx->dri_context)
goto cleanup;
2010-02-03 15:18:28 +00:00
return &dri2_ctx->base;
2010-02-05 15:49:33 +00:00
cleanup:
free(dri2_ctx);
return NULL;
2010-02-03 15:18:28 +00:00
}
static EGLBoolean
dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
if (_eglIsSurfaceBound(surf))
return EGL_TRUE;
(*dri2_dpy->core->destroyDrawable)(dri2_surf->dri_drawable);
xcb_dri2_destroy_drawable (dri2_dpy->conn, dri2_surf->drawable);
if (surf->Type == EGL_PBUFFER_BIT)
xcb_free_pixmap (dri2_dpy->conn, dri2_surf->drawable);
free(surf);
return EGL_TRUE;
}
/**
* Called via eglMakeCurrent(), drv->API.MakeCurrent().
*/
static EGLBoolean
dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
_EGLSurface *rsurf, _EGLContext *ctx)
{
struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2010-02-03 15:18:28 +00:00
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_surface *dri2_dsurf = dri2_egl_surface(dsurf);
struct dri2_egl_surface *dri2_rsurf = dri2_egl_surface(rsurf);
struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
__DRIdrawable *ddraw, *rdraw;
__DRIcontext *cctx;
/* bind the new context and return the "orphaned" one */
if (!_eglBindContext(&ctx, &dsurf, &rsurf))
return EGL_FALSE;
/* flush before context switch */
if (ctx && dri2_drv->glFlush)
dri2_drv->glFlush();
2010-02-03 15:18:28 +00:00
ddraw = (dri2_dsurf) ? dri2_dsurf->dri_drawable : NULL;
rdraw = (dri2_rsurf) ? dri2_rsurf->dri_drawable : NULL;
cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
if ((cctx == NULL && ddraw == NULL && rdraw == NULL) ||
dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
if (dsurf && !_eglIsSurfaceLinked(dsurf))
2010-02-03 15:18:28 +00:00
dri2_destroy_surface(drv, disp, dsurf);
if (rsurf && rsurf != dsurf && !_eglIsSurfaceLinked(dsurf))
2010-02-03 15:18:28 +00:00
dri2_destroy_surface(drv, disp, rsurf);
if (ctx != NULL && !_eglIsContextLinked(ctx))
2010-02-03 15:18:28 +00:00
dri2_dpy->core->unbindContext(dri2_egl_context(ctx)->dri_context);
return EGL_TRUE;
} else {
_eglBindContext(&ctx, &dsurf, &rsurf);
return EGL_FALSE;
}
}
/**
* Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
*/
static _EGLSurface *
dri2_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
_EGLConfig *conf, EGLNativeWindowType window,
const EGLint *attrib_list)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
struct dri2_egl_surface *dri2_surf;
xcb_get_geometry_cookie_t cookie;
xcb_get_geometry_reply_t *reply;
xcb_screen_iterator_t s;
xcb_generic_error_t *error;
dri2_surf = malloc(sizeof *dri2_surf);
if (!dri2_surf) {
2010-02-05 15:49:33 +00:00
_eglError(EGL_BAD_ALLOC, "dri2_create_surface");
2010-02-03 15:18:28 +00:00
return NULL;
}
2010-02-05 15:49:33 +00:00
if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list))
goto cleanup_surf;
2010-02-03 15:18:28 +00:00
dri2_surf->region = XCB_NONE;
if (type == EGL_PBUFFER_BIT) {
dri2_surf->drawable = xcb_generate_id(dri2_dpy->conn);
s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
xcb_create_pixmap(dri2_dpy->conn,
_eglGetConfigKey(conf, EGL_BUFFER_SIZE),
dri2_surf->drawable, s.data->root,
dri2_surf->base.Width, dri2_surf->base.Height);
} else {
dri2_surf->drawable = window;
}
dri2_surf->dri_drawable =
(*dri2_dpy->dri2->createNewDrawable) (dri2_dpy->dri_screen,
dri2_conf->dri_config, dri2_surf);
2010-02-05 15:49:33 +00:00
if (dri2_surf->dri_drawable == NULL) {
_eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable");
goto cleanup_pixmap;
2010-02-03 15:18:28 +00:00
}
xcb_dri2_create_drawable (dri2_dpy->conn, dri2_surf->drawable);
2010-02-05 15:49:33 +00:00
if (type != EGL_PBUFFER_BIT) {
cookie = xcb_get_geometry (dri2_dpy->conn, dri2_surf->drawable);
reply = xcb_get_geometry_reply (dri2_dpy->conn, cookie, &error);
if (reply == NULL || error != NULL) {
_eglError(EGL_BAD_ALLOC, "xcb_get_geometry");
free(error);
goto cleanup_dri_drawable;
}
dri2_surf->base.Width = reply->width;
dri2_surf->base.Height = reply->height;
free(reply);
2010-02-03 15:18:28 +00:00
}
return &dri2_surf->base;
2010-02-05 15:49:33 +00:00
cleanup_dri_drawable:
dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable);
cleanup_pixmap:
if (type == EGL_PBUFFER_BIT)
xcb_free_pixmap(dri2_dpy->conn, dri2_surf->drawable);
cleanup_surf:
free(dri2_surf);
return NULL;
2010-02-03 15:18:28 +00:00
}
/**
* Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
*/
static _EGLSurface *
dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
_EGLConfig *conf, EGLNativeWindowType window,
const EGLint *attrib_list)
{
return dri2_create_surface(drv, disp, EGL_WINDOW_BIT, conf,
window, attrib_list);
}
static _EGLSurface *
dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *disp,
_EGLConfig *conf, EGLNativePixmapType pixmap,
const EGLint *attrib_list)
{
return dri2_create_surface(drv, disp, EGL_PIXMAP_BIT, conf,
pixmap, attrib_list);
}
static _EGLSurface *
dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp,
_EGLConfig *conf, const EGLint *attrib_list)
{
return dri2_create_surface(drv, disp, EGL_PBUFFER_BIT, conf,
XCB_WINDOW_NONE, attrib_list);
}
static EGLBoolean
dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
{
struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2010-02-03 15:18:28 +00:00
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
_EGLContext *ctx;
2010-02-03 15:18:28 +00:00
xcb_dri2_copy_region_cookie_t cookie;
if (dri2_drv->glFlush) {
ctx = _eglGetCurrentContext();
if (ctx && ctx->DrawSurface == &dri2_surf->base)
dri2_drv->glFlush();
}
(*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
2010-02-03 15:18:28 +00:00
#if 0
/* FIXME: Add support for dri swapbuffers, that'll give us swap
* interval and page flipping (at least for fullscreen windows) as
* well as the page flip event. Unless surface->SwapBehavior is
* EGL_BUFFER_PRESERVED. */
2010-02-03 15:18:28 +00:00
#if __DRI2_FLUSH_VERSION >= 2
if (pdraw->psc->f)
(*pdraw->psc->f->flushInvalidate)(pdraw->driDrawable);
#endif
#endif
if (!dri2_surf->have_fake_front)
2010-02-03 15:18:28 +00:00
return EGL_TRUE;
cookie = xcb_dri2_copy_region_unchecked(dri2_dpy->conn,
dri2_surf->drawable,
dri2_surf->region,
XCB_DRI2_ATTACHMENT_BUFFER_FRONT_LEFT,
XCB_DRI2_ATTACHMENT_BUFFER_FAKE_FRONT_LEFT);
2010-02-03 15:18:28 +00:00
free(xcb_dri2_copy_region_reply(dri2_dpy->conn, cookie, NULL));
return EGL_TRUE;
}
/*
* Called from eglGetProcAddress() via drv->API.GetProcAddress().
*/
static _EGLProc
dri2_get_proc_address(_EGLDriver *drv, const char *procname)
{
/* FIXME: Do we need to support lookup of EGL symbols too? */
return (_EGLProc) _glapi_get_proc_address(procname);
}
static EGLBoolean
dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
2010-02-03 15:18:28 +00:00
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_surface *dri2_surf = dri2_egl_surface(ctx->DrawSurface);
/* FIXME: If EGL allows frontbuffer rendering for window surfaces,
* we need to copy fake to real here.*/
(*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
2010-02-03 15:18:28 +00:00
return EGL_TRUE;
}
static EGLBoolean
dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
2010-02-03 15:18:28 +00:00
{
if (engine != EGL_CORE_NATIVE_ENGINE)
return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
/* glXWaitX(); */
return EGL_TRUE;
}
static void
dri2_unload(_EGLDriver *drv)
{
struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
free(dri2_drv);
}
static EGLBoolean
dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
EGLNativePixmapType target)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
xcb_gcontext_t gc;
(*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
gc = xcb_generate_id(dri2_dpy->conn);
xcb_create_gc(dri2_dpy->conn, gc, target, 0, NULL);
xcb_copy_area(dri2_dpy->conn,
dri2_surf->drawable,
target,
gc,
0, 0,
0, 0,
dri2_surf->base.Width,
dri2_surf->base.Height);
xcb_free_gc(dri2_dpy->conn, gc);
return EGL_TRUE;
}
2010-02-09 20:49:28 +00:00
static EGLBoolean
dri2_bind_tex_image(_EGLDriver *drv,
_EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
struct dri2_egl_context *dri2_ctx;
_EGLContext *ctx;
GLint format, target;
ctx = _eglGetCurrentContext();
dri2_ctx = dri2_egl_context(ctx);
if (buffer != EGL_BACK_BUFFER) {
_eglError(EGL_BAD_PARAMETER, "eglBindTexImage");
return EGL_FALSE;
}
/* We allow binding pixmaps too... Not conformat, but we can do it
* for free and it's useful for X compositors. Supposedly there's
* a EGL_NOKIA_texture_from_pixmap extension that allows that, but
* I couldn't find it at this time. */
if ((dri2_surf->base.Type & (EGL_PBUFFER_BIT | EGL_PIXMAP_BIT)) == 0) {
2010-02-09 20:49:28 +00:00
_eglError(EGL_BAD_SURFACE, "eglBindTexImage");
return EGL_FALSE;
}
switch (dri2_surf->base.TextureFormat) {
case EGL_TEXTURE_RGB:
format = __DRI_TEXTURE_FORMAT_RGB;
break;
case EGL_TEXTURE_RGBA:
format = __DRI_TEXTURE_FORMAT_RGBA;
break;
default:
_eglError(EGL_BAD_MATCH, "eglBindTexImage");
return EGL_FALSE;
}
switch (dri2_surf->base.TextureTarget) {
case EGL_TEXTURE_2D:
target = GL_TEXTURE_2D;
break;
default:
_eglError(EGL_BAD_PARAMETER, "eglBindTexImage");
return EGL_FALSE;
}
(*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
target, format,
dri2_surf->dri_drawable);
return dri2_surf->base.BoundToTexture = EGL_TRUE;
}
static EGLBoolean
dri2_release_tex_image(_EGLDriver *drv,
_EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
{
return EGL_TRUE;
}
static _EGLImage *
dri2_create_image_khr_pixmap(_EGLDisplay *disp, _EGLContext *ctx,
EGLClientBuffer buffer, const EGLint *attr_list)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
struct dri2_egl_image *dri2_img;
unsigned int attachments[1];
xcb_drawable_t drawable;
xcb_dri2_get_buffers_cookie_t buffers_cookie;
xcb_dri2_get_buffers_reply_t *buffers_reply;
xcb_dri2_dri2_buffer_t *buffers;
xcb_get_geometry_cookie_t geometry_cookie;
xcb_get_geometry_reply_t *geometry_reply;
xcb_generic_error_t *error;
int stride, format;
drawable = (xcb_drawable_t) buffer;
xcb_dri2_create_drawable (dri2_dpy->conn, drawable);
attachments[0] = XCB_DRI2_ATTACHMENT_BUFFER_FRONT_LEFT;
buffers_cookie =
xcb_dri2_get_buffers_unchecked (dri2_dpy->conn,
drawable, 1, 1, attachments);
geometry_cookie = xcb_get_geometry (dri2_dpy->conn, drawable);
buffers_reply = xcb_dri2_get_buffers_reply (dri2_dpy->conn,
buffers_cookie, NULL);
buffers = xcb_dri2_get_buffers_buffers (buffers_reply);
if (buffers == NULL) {
return NULL;
}
geometry_reply = xcb_get_geometry_reply (dri2_dpy->conn,
geometry_cookie, &error);
if (geometry_reply == NULL || error != NULL) {
_eglError(EGL_BAD_ALLOC, "xcb_get_geometry");
free(error);
free(buffers_reply);
}
switch (geometry_reply->depth) {
case 16:
format = __DRI_IMAGE_FORMAT_RGB565;
break;
case 24:
format = __DRI_IMAGE_FORMAT_XRGB8888;
break;
case 32:
format = __DRI_IMAGE_FORMAT_ARGB8888;
break;
default:
_eglError(EGL_BAD_PARAMETER,
"dri2_create_image_khr: unsupported pixmap depth");
free(buffers_reply);
free(geometry_reply);
return NULL;
}
dri2_img = malloc(sizeof *dri2_img);
if (!dri2_img) {
free(buffers_reply);
free(geometry_reply);
_eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
return EGL_NO_IMAGE_KHR;
}
if (!_eglInitImage(&dri2_img->base, disp, attr_list)) {
free(buffers_reply);
free(geometry_reply);
return EGL_NO_IMAGE_KHR;
}
stride = buffers[0].pitch / buffers[0].cpp;
dri2_img->dri_image =
dri2_dpy->image->createImageFromName(dri2_ctx->dri_context,
buffers_reply->width,
buffers_reply->height,
format,
buffers[0].name,
stride,
dri2_img);
free(buffers_reply);
free(geometry_reply);
return &dri2_img->base;
}
static _EGLImage *
dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
EGLClientBuffer buffer,
const EGLint *attr_list)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
struct dri2_egl_image *dri2_img;
GLuint renderbuffer = (GLuint) buffer;
if (renderbuffer == 0) {
_eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
return EGL_NO_IMAGE_KHR;
}
dri2_img = malloc(sizeof *dri2_img);
if (!dri2_img) {
_eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
return EGL_NO_IMAGE_KHR;
}
if (!_eglInitImage(&dri2_img->base, disp, attr_list))
return EGL_NO_IMAGE_KHR;
dri2_img->dri_image =
dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
renderbuffer,
dri2_img);
return &dri2_img->base;
}
static _EGLImage *
dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
_EGLContext *ctx, EGLenum target,
EGLClientBuffer buffer, const EGLint *attr_list)
{
switch (target) {
case EGL_NATIVE_PIXMAP_KHR:
return dri2_create_image_khr_pixmap(disp, ctx, buffer, attr_list);
case EGL_GL_RENDERBUFFER_KHR:
return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
default:
_eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
return EGL_NO_IMAGE_KHR;
}
}
static EGLBoolean
dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_image *dri2_img = dri2_egl_image(image);
dri2_dpy->image->destroyImage(dri2_img->dri_image);
free(dri2_img);
return EGL_TRUE;
}
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/**
* This is the main entrypoint into the driver, called by libEGL.
* Create a new _EGLDriver object and init its dispatch table.
*/
_EGLDriver *
_eglMain(const char *args)
{
struct dri2_egl_driver *dri2_drv;
dri2_drv = malloc(sizeof *dri2_drv);
if (!dri2_drv)
return NULL;
_eglInitDriverFallbacks(&dri2_drv->base);
dri2_drv->base.API.Initialize = dri2_initialize;
dri2_drv->base.API.Terminate = dri2_terminate;
dri2_drv->base.API.CreateContext = dri2_create_context;
dri2_drv->base.API.MakeCurrent = dri2_make_current;
dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
dri2_drv->base.API.WaitClient = dri2_wait_client;
dri2_drv->base.API.WaitNative = dri2_wait_native;
dri2_drv->base.API.CopyBuffers = dri2_copy_buffers;
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dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
dri2_drv->base.API.CreateImageKHR = dri2_create_image_khr;
dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
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dri2_drv->base.Name = "DRI2";
dri2_drv->base.Unload = dri2_unload;
dri2_drv->glFlush =
(void (*)(void)) dri2_get_proc_address(&dri2_drv->base, "glFlush");
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return &dri2_drv->base;
}