0,0 → 1,352 |
/* |
* SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) |
* Copyright (C) 1991-2000 Silicon Graphics, Inc. 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, 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 including the dates of first publication and |
* either this permission notice or a reference to |
* http://oss.sgi.com/projects/FreeB/ |
* 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 |
* SILICON GRAPHICS, INC. 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. |
* |
* Except as contained in this notice, the name of Silicon Graphics, Inc. |
* shall not be used in advertising or otherwise to promote the sale, use or |
* other dealings in this Software without prior written authorization from |
* Silicon Graphics, Inc. |
*/ |
|
#include "glxclient.h" |
#include "indirect.h" |
|
#if !defined(__GNUC__) |
# define __builtin_expect(x, y) x |
#endif |
|
/** |
* Send glPixelStore command to the server |
* |
* \param gc Current GLX context |
* \param sop Either \c X_GLsop_PixelStoref or \c X_GLsop_PixelStorei |
* \param pname Selector of which pixel parameter is to be set. |
* \param param Value that \c pname is set to. |
* |
* \sa __indirect_glPixelStorei, __indirect_glPixelStoref |
*/ |
static void |
send_PixelStore(struct glx_context * gc, unsigned sop, GLenum pname, |
const void *param) |
{ |
Display *const dpy = gc->currentDpy; |
const GLuint cmdlen = 8; |
if (__builtin_expect(dpy != NULL, 1)) { |
GLubyte const *pc = __glXSetupSingleRequest(gc, sop, cmdlen); |
(void) memcpy((void *) (pc + 0), (void *) (&pname), 4); |
(void) memcpy((void *) (pc + 4), param, 4); |
UnlockDisplay(dpy); |
SyncHandle(); |
} |
return; |
} |
|
/* |
** Specify parameters that control the storage format of pixel arrays. |
*/ |
void |
__indirect_glPixelStoref(GLenum pname, GLfloat param) |
{ |
struct glx_context *gc = __glXGetCurrentContext(); |
__GLXattribute *state = gc->client_state_private; |
Display *dpy = gc->currentDpy; |
GLuint a; |
|
if (!dpy) |
return; |
|
switch (pname) { |
case GL_PACK_ROW_LENGTH: |
a = (GLuint) (param + 0.5); |
if (((GLint) a) < 0) { |
__glXSetError(gc, GL_INVALID_VALUE); |
return; |
} |
state->storePack.rowLength = a; |
break; |
case GL_PACK_IMAGE_HEIGHT: |
a = (GLuint) (param + 0.5); |
if (((GLint) a) < 0) { |
__glXSetError(gc, GL_INVALID_VALUE); |
return; |
} |
state->storePack.imageHeight = a; |
break; |
case GL_PACK_SKIP_ROWS: |
a = (GLuint) (param + 0.5); |
if (((GLint) a) < 0) { |
__glXSetError(gc, GL_INVALID_VALUE); |
return; |
} |
state->storePack.skipRows = a; |
break; |
case GL_PACK_SKIP_PIXELS: |
a = (GLuint) (param + 0.5); |
if (((GLint) a) < 0) { |
__glXSetError(gc, GL_INVALID_VALUE); |
return; |
} |
state->storePack.skipPixels = a; |
break; |
case GL_PACK_SKIP_IMAGES: |
a = (GLuint) (param + 0.5); |
if (((GLint) a) < 0) { |
__glXSetError(gc, GL_INVALID_VALUE); |
return; |
} |
state->storePack.skipImages = a; |
break; |
case GL_PACK_ALIGNMENT: |
a = (GLint) (param + 0.5); |
switch (a) { |
case 1: |
case 2: |
case 4: |
case 8: |
state->storePack.alignment = a; |
break; |
default: |
__glXSetError(gc, GL_INVALID_VALUE); |
return; |
} |
break; |
case GL_PACK_SWAP_BYTES: |
state->storePack.swapEndian = (param != 0); |
break; |
case GL_PACK_LSB_FIRST: |
state->storePack.lsbFirst = (param != 0); |
break; |
|
case GL_UNPACK_ROW_LENGTH: |
a = (GLuint) (param + 0.5); |
if (((GLint) a) < 0) { |
__glXSetError(gc, GL_INVALID_VALUE); |
return; |
} |
state->storeUnpack.rowLength = a; |
break; |
case GL_UNPACK_IMAGE_HEIGHT: |
a = (GLuint) (param + 0.5); |
if (((GLint) a) < 0) { |
__glXSetError(gc, GL_INVALID_VALUE); |
return; |
} |
state->storeUnpack.imageHeight = a; |
break; |
case GL_UNPACK_SKIP_ROWS: |
a = (GLuint) (param + 0.5); |
if (((GLint) a) < 0) { |
__glXSetError(gc, GL_INVALID_VALUE); |
return; |
} |
state->storeUnpack.skipRows = a; |
break; |
case GL_UNPACK_SKIP_PIXELS: |
a = (GLuint) (param + 0.5); |
if (((GLint) a) < 0) { |
__glXSetError(gc, GL_INVALID_VALUE); |
return; |
} |
state->storeUnpack.skipPixels = a; |
break; |
case GL_UNPACK_SKIP_IMAGES: |
a = (GLuint) (param + 0.5); |
if (((GLint) a) < 0) { |
__glXSetError(gc, GL_INVALID_VALUE); |
return; |
} |
state->storeUnpack.skipImages = a; |
break; |
case GL_UNPACK_ALIGNMENT: |
a = (GLint) (param + 0.5); |
switch (a) { |
case 1: |
case 2: |
case 4: |
case 8: |
state->storeUnpack.alignment = a; |
break; |
default: |
__glXSetError(gc, GL_INVALID_VALUE); |
return; |
} |
break; |
case GL_UNPACK_SWAP_BYTES: |
state->storeUnpack.swapEndian = (param != 0); |
break; |
case GL_UNPACK_LSB_FIRST: |
state->storeUnpack.lsbFirst = (param != 0); |
break; |
|
/* Group all of the pixel store modes that need to be sent to the |
* server here. Care must be used to only send modes to the server that |
* won't affect the size of the data sent to or received from the |
* server. GL_PACK_INVERT_MESA is safe in this respect, but other, |
* future modes may not be. |
*/ |
case GL_PACK_INVERT_MESA: |
send_PixelStore(gc, X_GLsop_PixelStoref, pname, ¶m); |
break; |
|
default: |
__glXSetError(gc, GL_INVALID_ENUM); |
break; |
} |
} |
|
void |
__indirect_glPixelStorei(GLenum pname, GLint param) |
{ |
struct glx_context *gc = __glXGetCurrentContext(); |
__GLXattribute *state = gc->client_state_private; |
Display *dpy = gc->currentDpy; |
|
if (!dpy) |
return; |
|
switch (pname) { |
case GL_PACK_ROW_LENGTH: |
if (param < 0) { |
__glXSetError(gc, GL_INVALID_VALUE); |
return; |
} |
state->storePack.rowLength = param; |
break; |
case GL_PACK_IMAGE_HEIGHT: |
if (param < 0) { |
__glXSetError(gc, GL_INVALID_VALUE); |
return; |
} |
state->storePack.imageHeight = param; |
break; |
case GL_PACK_SKIP_ROWS: |
if (param < 0) { |
__glXSetError(gc, GL_INVALID_VALUE); |
return; |
} |
state->storePack.skipRows = param; |
break; |
case GL_PACK_SKIP_PIXELS: |
if (param < 0) { |
__glXSetError(gc, GL_INVALID_VALUE); |
return; |
} |
state->storePack.skipPixels = param; |
break; |
case GL_PACK_SKIP_IMAGES: |
if (param < 0) { |
__glXSetError(gc, GL_INVALID_VALUE); |
return; |
} |
state->storePack.skipImages = param; |
break; |
case GL_PACK_ALIGNMENT: |
switch (param) { |
case 1: |
case 2: |
case 4: |
case 8: |
state->storePack.alignment = param; |
break; |
default: |
__glXSetError(gc, GL_INVALID_VALUE); |
return; |
} |
break; |
case GL_PACK_SWAP_BYTES: |
state->storePack.swapEndian = (param != 0); |
break; |
case GL_PACK_LSB_FIRST: |
state->storePack.lsbFirst = (param != 0); |
break; |
|
case GL_UNPACK_ROW_LENGTH: |
if (param < 0) { |
__glXSetError(gc, GL_INVALID_VALUE); |
return; |
} |
state->storeUnpack.rowLength = param; |
break; |
case GL_UNPACK_IMAGE_HEIGHT: |
if (param < 0) { |
__glXSetError(gc, GL_INVALID_VALUE); |
return; |
} |
state->storeUnpack.imageHeight = param; |
break; |
case GL_UNPACK_SKIP_ROWS: |
if (param < 0) { |
__glXSetError(gc, GL_INVALID_VALUE); |
return; |
} |
state->storeUnpack.skipRows = param; |
break; |
case GL_UNPACK_SKIP_PIXELS: |
if (param < 0) { |
__glXSetError(gc, GL_INVALID_VALUE); |
return; |
} |
state->storeUnpack.skipPixels = param; |
break; |
case GL_UNPACK_SKIP_IMAGES: |
if (param < 0) { |
__glXSetError(gc, GL_INVALID_VALUE); |
return; |
} |
state->storeUnpack.skipImages = param; |
break; |
case GL_UNPACK_ALIGNMENT: |
switch (param) { |
case 1: |
case 2: |
case 4: |
case 8: |
state->storeUnpack.alignment = param; |
break; |
default: |
__glXSetError(gc, GL_INVALID_VALUE); |
return; |
} |
break; |
case GL_UNPACK_SWAP_BYTES: |
state->storeUnpack.swapEndian = (param != 0); |
break; |
case GL_UNPACK_LSB_FIRST: |
state->storeUnpack.lsbFirst = (param != 0); |
break; |
|
/* Group all of the pixel store modes that need to be sent to the |
* server here. Care must be used to only send modes to the server that |
* won't affect the size of the data sent to or received from the |
* server. GL_PACK_INVERT_MESA is safe in this respect, but other, |
* future modes may not be. |
*/ |
case GL_PACK_INVERT_MESA: |
send_PixelStore(gc, X_GLsop_PixelStorei, pname, ¶m); |
break; |
|
default: |
__glXSetError(gc, GL_INVALID_ENUM); |
break; |
} |
} |