| 0,0 → 1,134 |
|---|
| /* |
| * (C) Copyright Apple Inc. 2008 |
| * (C) Copyright IBM Corporation 2004, 2005 |
| * All Rights Reserved. |
| * |
| * 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, sub license, |
| * 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 NON-INFRINGEMENT. IN NO EVENT SHALL |
| * IBM, |
| * AND/OR THEIR SUPPLIERS 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. |
| */ |
| |
| #include <GL/gl.h> |
| #include "glxclient.h" |
| #include <GL/glxproto.h> |
| |
| CARD32 |
| __glXReadReply(Display * dpy, size_t size, void *dest, |
| GLboolean reply_is_always_array) |
| { |
| xGLXSingleReply reply; |
| |
| (void) _XReply(dpy, (xReply *) & reply, 0, False); |
| if (size != 0) { |
| if ((reply.length > 0) || reply_is_always_array) { |
| const GLint bytes = (reply_is_always_array) |
| ? (4 * reply.length) : (reply.size * size); |
| const GLint extra = 4 - (bytes & 3); |
| |
| _XRead(dpy, dest, bytes); |
| if (extra < 4) { |
| _XEatData(dpy, extra); |
| } |
| } |
| else { |
| (void) memcpy(dest, &(reply.pad3), size); |
| } |
| } |
| |
| return reply.retval; |
| } |
| |
| void |
| __glXReadPixelReply(Display * dpy, struct glx_context * gc, unsigned max_dim, |
| GLint width, GLint height, GLint depth, GLenum format, |
| GLenum type, void *dest, GLboolean dimensions_in_reply) |
| { |
| xGLXSingleReply reply; |
| GLint size; |
| |
| (void) _XReply(dpy, (xReply *) & reply, 0, False); |
| |
| if (dimensions_in_reply) { |
| width = reply.pad3; |
| height = reply.pad4; |
| depth = reply.pad5; |
| |
| if ((height == 0) || (max_dim < 2)) { |
| height = 1; |
| } |
| if ((depth == 0) || (max_dim < 3)) { |
| depth = 1; |
| } |
| } |
| |
| size = reply.length * 4; |
| if (size != 0) { |
| void *buf = malloc(size); |
| |
| if (buf == NULL) { |
| _XEatData(dpy, size); |
| __glXSetError(gc, GL_OUT_OF_MEMORY); |
| } |
| else { |
| const GLint extra = 4 - (size & 3); |
| |
| _XRead(dpy, buf, size); |
| if (extra < 4) { |
| _XEatData(dpy, extra); |
| } |
| |
| __glEmptyImage(gc, 3, width, height, depth, format, type, buf, dest); |
| free(buf); |
| } |
| } |
| } |
| |
| #if 0 |
| GLubyte * |
| __glXSetupSingleRequest(struct glx_context * gc, GLint sop, GLint cmdlen) |
| { |
| xGLXSingleReq *req; |
| Display *const dpy = gc->currentDpy; |
| |
| (void) __glXFlushRenderBuffer(gc, gc->pc); |
| LockDisplay(dpy); |
| GetReqExtra(GLXSingle, cmdlen, req); |
| req->reqType = gc->majorOpcode; |
| req->contextTag = gc->currentContextTag; |
| req->glxCode = sop; |
| return (GLubyte *) (req) + sz_xGLXSingleReq; |
| } |
| #endif |
| |
| GLubyte * |
| __glXSetupVendorRequest(struct glx_context * gc, GLint code, GLint vop, |
| GLint cmdlen) |
| { |
| xGLXVendorPrivateReq *req; |
| Display *const dpy = gc->currentDpy; |
| |
| (void) __glXFlushRenderBuffer(gc, gc->pc); |
| LockDisplay(dpy); |
| GetReqExtra(GLXVendorPrivate, cmdlen, req); |
| req->reqType = gc->majorOpcode; |
| req->glxCode = code; |
| req->vendorCode = vop; |
| req->contextTag = gc->currentContextTag; |
| return (GLubyte *) (req) + sz_xGLXVendorPrivateReq; |
| } |