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/*
* Mesa 3-D graphics library
* Version: 7.8
*
* Copyright (C) 2010 LunarG Inc.
*
* 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 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:
* Chia-I Wu <olv@lunarg.com>
*/
#include "pipe/p_screen.h"
#include "util/u_memory.h"
#include "util/u_rect.h"
#include "util/u_inlines.h"
#include "eglcurrent.h"
#include "native.h"
#include "egl_g3d.h"
#include "egl_g3d_api.h"
#include "egl_g3d_image.h"
/**
* Reference and return the front left buffer of the native pixmap.
*/
static struct pipe_resource *
egl_g3d_reference_native_pixmap(_EGLDisplay *dpy, EGLNativePixmapType pix)
{
struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
struct egl_g3d_config *gconf;
struct native_surface *nsurf;
struct pipe_resource *textures[NUM_NATIVE_ATTACHMENTS];
enum native_attachment natt;
gconf = egl_g3d_config(egl_g3d_find_pixmap_config(dpy, pix));
if (!gconf)
return NULL;
nsurf = gdpy->native->create_pixmap_surface(gdpy->native,
pix, gconf->native);
if (!nsurf)
return NULL;
natt = NATIVE_ATTACHMENT_FRONT_LEFT;
if (!nsurf->validate(nsurf, 1 << natt, NULL, textures, NULL, NULL))
textures[natt] = NULL;
nsurf->destroy(nsurf);
return textures[natt];
}
_EGLImage *
egl_g3d_create_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
EGLenum target, EGLClientBuffer buffer,
const EGLint *attribs)
{
struct pipe_resource *ptex;
struct egl_g3d_image *gimg;
unsigned face = 0, level = 0, zslice = 0;
gimg = CALLOC_STRUCT(egl_g3d_image);
if (!gimg) {
_eglError(EGL_BAD_ALLOC, "eglCreatePbufferSurface");
return NULL;
}
if (!_eglInitImage(&gimg->base, dpy, attribs)) {
FREE(gimg);
return NULL;
}
switch (target) {
case EGL_NATIVE_PIXMAP_KHR:
ptex = egl_g3d_reference_native_pixmap(dpy,
(EGLNativePixmapType) buffer);
break;
default:
ptex = NULL;
break;
}
if (!ptex) {
FREE(gimg);
return NULL;
}
if (level > ptex->last_level) {
_eglError(EGL_BAD_MATCH, "eglCreateEGLImageKHR");
pipe_resource_reference(&gimg->texture, NULL);
FREE(gimg);
return NULL;
}
if (zslice > ptex->depth0) {
_eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
pipe_resource_reference(&gimg->texture, NULL);
FREE(gimg);
return NULL;
}
/* transfer the ownership to the image */
gimg->texture = ptex;
gimg->face = face;
gimg->level = level;
gimg->zslice = zslice;
return &gimg->base;
}
EGLBoolean
egl_g3d_destroy_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLImage *img)
{
struct egl_g3d_image *gimg = egl_g3d_image(img);
pipe_resource_reference(&gimg->texture, NULL);
FREE(gimg);
return EGL_TRUE;
}
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