mirror of https://gitlab.freedesktop.org/mesa/mesa
542 lines
14 KiB
C
542 lines
14 KiB
C
/**************************************************************************
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*
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* Copyright 2008 VMware, Inc.
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* Copyright 2009-2010 Chia-I Wu <olvaffe@gmail.com>
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* Copyright 2010 LunarG, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/**
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* Surface-related functions.
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*/
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#include <assert.h>
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#include <stdlib.h>
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#include <string.h>
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#include "egldisplay.h"
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#include "egldriver.h"
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#include "eglcontext.h"
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#include "eglconfig.h"
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#include "eglcurrent.h"
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#include "egllog.h"
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#include "eglsurface.h"
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static void
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_eglClampSwapInterval(_EGLSurface *surf, EGLint interval)
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{
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EGLint bound = surf->Config->MaxSwapInterval;
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if (interval >= bound) {
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interval = bound;
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}
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else {
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bound = surf->Config->MinSwapInterval;
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if (interval < bound)
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interval = bound;
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}
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surf->SwapInterval = interval;
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}
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#ifdef EGL_MESA_screen_surface
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static EGLint
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_eglParseScreenSurfaceAttribList(_EGLSurface *surf, const EGLint *attrib_list)
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{
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EGLint i, err = EGL_SUCCESS;
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if (!attrib_list)
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return EGL_SUCCESS;
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for (i = 0; attrib_list[i] != EGL_NONE; i++) {
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EGLint attr = attrib_list[i++];
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EGLint val = attrib_list[i];
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switch (attr) {
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case EGL_WIDTH:
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if (val < 0) {
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err = EGL_BAD_PARAMETER;
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break;
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}
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surf->Width = val;
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break;
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case EGL_HEIGHT:
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if (val < 0) {
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err = EGL_BAD_PARAMETER;
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break;
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}
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surf->Height = val;
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break;
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default:
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err = EGL_BAD_ATTRIBUTE;
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break;
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}
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if (err != EGL_SUCCESS) {
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_eglLog(_EGL_WARNING, "bad surface attribute 0x%04x", attr);
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break;
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}
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}
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return err;
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}
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#endif /* EGL_MESA_screen_surface */
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/**
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* Parse the list of surface attributes and return the proper error code.
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*/
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static EGLint
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_eglParseSurfaceAttribList(_EGLSurface *surf, const EGLint *attrib_list)
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{
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_EGLDisplay *dpy = surf->Resource.Display;
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EGLint type = surf->Type;
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EGLint texture_type = EGL_PBUFFER_BIT;
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EGLint i, err = EGL_SUCCESS;
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if (!attrib_list)
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return EGL_SUCCESS;
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#ifdef EGL_MESA_screen_surface
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if (type == EGL_SCREEN_BIT_MESA)
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return _eglParseScreenSurfaceAttribList(surf, attrib_list);
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#endif
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if (dpy->Extensions.NOK_texture_from_pixmap)
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texture_type |= EGL_PIXMAP_BIT;
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for (i = 0; attrib_list[i] != EGL_NONE; i++) {
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EGLint attr = attrib_list[i++];
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EGLint val = attrib_list[i];
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switch (attr) {
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/* common attributes */
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case EGL_VG_COLORSPACE:
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switch (val) {
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case EGL_VG_COLORSPACE_sRGB:
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case EGL_VG_COLORSPACE_LINEAR:
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break;
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default:
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err = EGL_BAD_ATTRIBUTE;
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break;
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}
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if (err != EGL_SUCCESS)
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break;
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surf->VGColorspace = val;
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break;
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case EGL_VG_ALPHA_FORMAT:
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switch (val) {
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case EGL_VG_ALPHA_FORMAT_NONPRE:
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case EGL_VG_ALPHA_FORMAT_PRE:
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break;
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default:
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err = EGL_BAD_ATTRIBUTE;
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break;
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}
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if (err != EGL_SUCCESS)
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break;
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surf->VGAlphaFormat = val;
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break;
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/* window surface attributes */
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case EGL_RENDER_BUFFER:
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if (type != EGL_WINDOW_BIT) {
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err = EGL_BAD_ATTRIBUTE;
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break;
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}
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if (val != EGL_BACK_BUFFER && val != EGL_SINGLE_BUFFER) {
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err = EGL_BAD_ATTRIBUTE;
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break;
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}
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surf->RenderBuffer = val;
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break;
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case EGL_POST_SUB_BUFFER_SUPPORTED_NV:
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if (!dpy->Extensions.NV_post_sub_buffer ||
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type != EGL_WINDOW_BIT) {
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err = EGL_BAD_ATTRIBUTE;
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break;
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}
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if (val != EGL_TRUE && val != EGL_FALSE) {
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err = EGL_BAD_PARAMETER;
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break;
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}
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surf->PostSubBufferSupportedNV = val;
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break;
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/* pbuffer surface attributes */
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case EGL_WIDTH:
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if (type != EGL_PBUFFER_BIT) {
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err = EGL_BAD_ATTRIBUTE;
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break;
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}
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if (val < 0) {
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err = EGL_BAD_PARAMETER;
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break;
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}
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surf->Width = val;
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break;
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case EGL_HEIGHT:
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if (type != EGL_PBUFFER_BIT) {
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err = EGL_BAD_ATTRIBUTE;
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break;
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}
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if (val < 0) {
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err = EGL_BAD_PARAMETER;
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break;
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}
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surf->Height = val;
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break;
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case EGL_LARGEST_PBUFFER:
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if (type != EGL_PBUFFER_BIT) {
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err = EGL_BAD_ATTRIBUTE;
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break;
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}
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surf->LargestPbuffer = !!val;
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break;
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/* for eglBindTexImage */
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case EGL_TEXTURE_FORMAT:
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if (!(type & texture_type)) {
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err = EGL_BAD_ATTRIBUTE;
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break;
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}
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switch (val) {
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case EGL_TEXTURE_RGB:
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case EGL_TEXTURE_RGBA:
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case EGL_NO_TEXTURE:
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break;
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default:
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err = EGL_BAD_ATTRIBUTE;
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break;
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}
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if (err != EGL_SUCCESS)
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break;
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surf->TextureFormat = val;
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break;
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case EGL_TEXTURE_TARGET:
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if (!(type & texture_type)) {
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err = EGL_BAD_ATTRIBUTE;
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break;
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}
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switch (val) {
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case EGL_TEXTURE_2D:
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case EGL_NO_TEXTURE:
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break;
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default:
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err = EGL_BAD_ATTRIBUTE;
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break;
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}
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if (err != EGL_SUCCESS)
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break;
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surf->TextureTarget = val;
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break;
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case EGL_MIPMAP_TEXTURE:
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if (!(type & texture_type)) {
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err = EGL_BAD_ATTRIBUTE;
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break;
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}
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surf->MipmapTexture = !!val;
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break;
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/* no pixmap surface specific attributes */
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default:
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err = EGL_BAD_ATTRIBUTE;
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break;
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}
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if (err != EGL_SUCCESS) {
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_eglLog(_EGL_WARNING, "bad surface attribute 0x%04x", attr);
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break;
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}
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}
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return err;
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}
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/**
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* Do error check on parameters and initialize the given _EGLSurface object.
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* \return EGL_TRUE if no errors, EGL_FALSE otherwise.
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*/
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EGLBoolean
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_eglInitSurface(_EGLSurface *surf, _EGLDisplay *dpy, EGLint type,
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_EGLConfig *conf, const EGLint *attrib_list)
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{
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const char *func;
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EGLint renderBuffer = EGL_BACK_BUFFER;
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EGLint swapBehavior = EGL_BUFFER_PRESERVED;
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EGLint err;
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switch (type) {
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case EGL_WINDOW_BIT:
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func = "eglCreateWindowSurface";
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swapBehavior = EGL_BUFFER_DESTROYED;
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break;
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case EGL_PIXMAP_BIT:
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func = "eglCreatePixmapSurface";
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renderBuffer = EGL_SINGLE_BUFFER;
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break;
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case EGL_PBUFFER_BIT:
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func = "eglCreatePBufferSurface";
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break;
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#ifdef EGL_MESA_screen_surface
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case EGL_SCREEN_BIT_MESA:
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func = "eglCreateScreenSurface";
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renderBuffer = EGL_SINGLE_BUFFER; /* XXX correct? */
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break;
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#endif
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default:
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_eglLog(_EGL_WARNING, "Bad type in _eglInitSurface");
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return EGL_FALSE;
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}
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if ((conf->SurfaceType & type) == 0) {
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/* The config can't be used to create a surface of this type */
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_eglError(EGL_BAD_CONFIG, func);
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return EGL_FALSE;
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}
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_eglInitResource(&surf->Resource, sizeof(*surf), dpy);
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surf->Type = type;
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surf->Config = conf;
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surf->Width = 0;
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surf->Height = 0;
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surf->TextureFormat = EGL_NO_TEXTURE;
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surf->TextureTarget = EGL_NO_TEXTURE;
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surf->MipmapTexture = EGL_FALSE;
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surf->LargestPbuffer = EGL_FALSE;
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surf->RenderBuffer = renderBuffer;
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surf->VGAlphaFormat = EGL_VG_ALPHA_FORMAT_NONPRE;
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surf->VGColorspace = EGL_VG_COLORSPACE_sRGB;
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surf->MipmapLevel = 0;
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surf->MultisampleResolve = EGL_MULTISAMPLE_RESOLVE_DEFAULT;
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surf->SwapBehavior = swapBehavior;
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surf->HorizontalResolution = EGL_UNKNOWN;
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surf->VerticalResolution = EGL_UNKNOWN;
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surf->AspectRatio = EGL_UNKNOWN;
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surf->PostSubBufferSupportedNV = EGL_FALSE;
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/* the default swap interval is 1 */
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_eglClampSwapInterval(surf, 1);
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err = _eglParseSurfaceAttribList(surf, attrib_list);
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if (err != EGL_SUCCESS)
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return _eglError(err, func);
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return EGL_TRUE;
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}
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EGLBoolean
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_eglQuerySurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface,
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EGLint attribute, EGLint *value)
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{
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switch (attribute) {
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case EGL_WIDTH:
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*value = surface->Width;
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break;
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case EGL_HEIGHT:
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*value = surface->Height;
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break;
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case EGL_CONFIG_ID:
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*value = surface->Config->ConfigID;
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break;
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case EGL_LARGEST_PBUFFER:
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*value = surface->LargestPbuffer;
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break;
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case EGL_TEXTURE_FORMAT:
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/* texture attributes: only for pbuffers, no error otherwise */
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if (surface->Type == EGL_PBUFFER_BIT)
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*value = surface->TextureFormat;
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break;
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case EGL_TEXTURE_TARGET:
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if (surface->Type == EGL_PBUFFER_BIT)
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*value = surface->TextureTarget;
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break;
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case EGL_MIPMAP_TEXTURE:
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if (surface->Type == EGL_PBUFFER_BIT)
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*value = surface->MipmapTexture;
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break;
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case EGL_MIPMAP_LEVEL:
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if (surface->Type == EGL_PBUFFER_BIT)
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*value = surface->MipmapLevel;
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break;
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case EGL_SWAP_BEHAVIOR:
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*value = surface->SwapBehavior;
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break;
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case EGL_RENDER_BUFFER:
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*value = surface->RenderBuffer;
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break;
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case EGL_PIXEL_ASPECT_RATIO:
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*value = surface->AspectRatio;
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break;
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case EGL_HORIZONTAL_RESOLUTION:
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*value = surface->HorizontalResolution;
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break;
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case EGL_VERTICAL_RESOLUTION:
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*value = surface->VerticalResolution;
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break;
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case EGL_MULTISAMPLE_RESOLVE:
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*value = surface->MultisampleResolve;
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break;
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case EGL_VG_ALPHA_FORMAT:
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*value = surface->VGAlphaFormat;
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break;
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case EGL_VG_COLORSPACE:
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*value = surface->VGColorspace;
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break;
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case EGL_POST_SUB_BUFFER_SUPPORTED_NV:
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*value = surface->PostSubBufferSupportedNV;
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break;
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case EGL_BUFFER_AGE_EXT:
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if (!dpy->Extensions.EXT_buffer_age) {
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_eglError(EGL_BAD_ATTRIBUTE, "eglQuerySurface");
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return EGL_FALSE;
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}
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*value = drv->API.QueryBufferAge(drv, dpy, surface);
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break;
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default:
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_eglError(EGL_BAD_ATTRIBUTE, "eglQuerySurface");
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return EGL_FALSE;
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}
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return EGL_TRUE;
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}
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/**
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* Default fallback routine - drivers might override this.
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*/
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EGLBoolean
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_eglSurfaceAttrib(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface,
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EGLint attribute, EGLint value)
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{
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EGLint confval;
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EGLint err = EGL_SUCCESS;
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EGLint all_es_bits = EGL_OPENGL_ES_BIT |
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EGL_OPENGL_ES2_BIT |
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EGL_OPENGL_ES3_BIT_KHR;
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switch (attribute) {
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case EGL_MIPMAP_LEVEL:
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confval = surface->Config->RenderableType;
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if (!(confval & all_es_bits)) {
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err = EGL_BAD_PARAMETER;
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break;
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}
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surface->MipmapLevel = value;
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break;
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case EGL_MULTISAMPLE_RESOLVE:
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switch (value) {
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case EGL_MULTISAMPLE_RESOLVE_DEFAULT:
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break;
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case EGL_MULTISAMPLE_RESOLVE_BOX:
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confval = surface->Config->SurfaceType;
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if (!(confval & EGL_MULTISAMPLE_RESOLVE_BOX_BIT))
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err = EGL_BAD_MATCH;
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break;
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default:
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err = EGL_BAD_ATTRIBUTE;
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break;
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}
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if (err != EGL_SUCCESS)
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break;
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surface->MultisampleResolve = value;
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break;
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case EGL_SWAP_BEHAVIOR:
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switch (value) {
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case EGL_BUFFER_DESTROYED:
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break;
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case EGL_BUFFER_PRESERVED:
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confval = surface->Config->SurfaceType;
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if (!(confval & EGL_SWAP_BEHAVIOR_PRESERVED_BIT))
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err = EGL_BAD_MATCH;
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break;
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default:
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err = EGL_BAD_ATTRIBUTE;
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break;
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}
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if (err != EGL_SUCCESS)
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break;
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surface->SwapBehavior = value;
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break;
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default:
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err = EGL_BAD_ATTRIBUTE;
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break;
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}
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if (err != EGL_SUCCESS)
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return _eglError(err, "eglSurfaceAttrib");
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return EGL_TRUE;
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}
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EGLBoolean
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_eglBindTexImage(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface,
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EGLint buffer)
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{
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EGLint texture_type = EGL_PBUFFER_BIT;
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/* Just do basic error checking and return success/fail.
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* Drivers must implement the real stuff.
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*/
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if (dpy->Extensions.NOK_texture_from_pixmap)
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texture_type |= EGL_PIXMAP_BIT;
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if (!(surface->Type & texture_type)) {
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_eglError(EGL_BAD_SURFACE, "eglBindTexImage");
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return EGL_FALSE;
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}
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if (surface->TextureFormat == EGL_NO_TEXTURE) {
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_eglError(EGL_BAD_MATCH, "eglBindTexImage");
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return EGL_FALSE;
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}
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if (surface->TextureTarget == EGL_NO_TEXTURE) {
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_eglError(EGL_BAD_MATCH, "eglBindTexImage");
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return EGL_FALSE;
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}
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if (buffer != EGL_BACK_BUFFER) {
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_eglError(EGL_BAD_PARAMETER, "eglBindTexImage");
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return EGL_FALSE;
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}
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surface->BoundToTexture = EGL_TRUE;
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return EGL_TRUE;
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}
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EGLBoolean
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_eglSwapInterval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
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EGLint interval)
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{
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_eglClampSwapInterval(surf, interval);
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return EGL_TRUE;
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}
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