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/*
* (C) Copyright IBM Corporation 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 <inttypes.h>
#include <GL/gl.h>
#include "indirect.h"
#include "glxclient.h"
#include "indirect_vertex_array.h"
#include <GL/glxproto.h>
#if !defined(__GNUC__)
# define __builtin_expect(x, y) x
#endif
static void
do_vertex_attrib_enable(GLuint index, GLboolean val)
{
struct glx_context *gc = __glXGetCurrentContext();
__GLXattribute *state = (__GLXattribute *) (gc->client_state_private);
if (!__glXSetArrayEnable(state, GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB,
index, val)) {
__glXSetError(gc, GL_INVALID_ENUM);
}
}
void
__indirect_glEnableVertexAttribArray(GLuint index)
{
do_vertex_attrib_enable(index, GL_TRUE);
}
void
__indirect_glDisableVertexAttribArray(GLuint index)
{
do_vertex_attrib_enable(index, GL_FALSE);
}
static void
get_parameter(unsigned opcode, unsigned size, GLenum target, GLuint index,
void *params)
{
struct glx_context *const gc = __glXGetCurrentContext();
Display *const dpy = gc->currentDpy;
const GLuint cmdlen = 12;
if (__builtin_expect(dpy != NULL, 1)) {
GLubyte const *pc = __glXSetupVendorRequest(gc,
X_GLXVendorPrivateWithReply,
opcode, cmdlen);
*((GLenum *) (pc + 0)) = target;
*((GLuint *) (pc + 4)) = index;
*((GLuint *) (pc + 8)) = 0;
(void) __glXReadReply(dpy, size, params, GL_FALSE);
UnlockDisplay(dpy);
SyncHandle();
}
return;
}
void
__indirect_glGetProgramEnvParameterfvARB(GLenum target, GLuint index,
GLfloat * params)
{
get_parameter(1296, 4, target, index, params);
}
void
__indirect_glGetProgramEnvParameterdvARB(GLenum target, GLuint index,
GLdouble * params)
{
get_parameter(1297, 8, target, index, params);
}
void
__indirect_glGetProgramLocalParameterfvARB(GLenum target, GLuint index,
GLfloat * params)
{
get_parameter(1305, 4, target, index, params);
}
void
__indirect_glGetProgramLocalParameterdvARB(GLenum target, GLuint index,
GLdouble * params)
{
get_parameter(1306, 8, target, index, params);
}
void
__indirect_glGetVertexAttribPointerv(GLuint index, GLenum pname,
GLvoid ** pointer)
{
struct glx_context *const gc = __glXGetCurrentContext();
__GLXattribute *state = (__GLXattribute *) (gc->client_state_private);
if (pname != GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB) {
__glXSetError(gc, GL_INVALID_ENUM);
}
if (!__glXGetArrayPointer(state, GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB,
index, pointer)) {
__glXSetError(gc, GL_INVALID_VALUE);
}
}
/**
* Get the selected attribute from the vertex array state vector.
*
* \returns
* On success \c GL_TRUE is returned. Otherwise, \c GL_FALSE is returned.
*/
static GLboolean
get_attrib_array_data(__GLXattribute * state, GLuint index, GLenum cap,
GLintptr * data)
{
GLboolean retval = GL_FALSE;
const GLenum attrib = GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB;
switch (cap) {
case GL_VERTEX_ATTRIB_ARRAY_ENABLED_ARB:
retval = __glXGetArrayEnable(state, attrib, index, data);
break;
case GL_VERTEX_ATTRIB_ARRAY_SIZE_ARB:
retval = __glXGetArraySize(state, attrib, index, data);
break;
case GL_VERTEX_ATTRIB_ARRAY_STRIDE_ARB:
retval = __glXGetArrayStride(state, attrib, index, data);
break;
case GL_VERTEX_ATTRIB_ARRAY_TYPE_ARB:
retval = __glXGetArrayType(state, attrib, index, data);
break;
case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED_ARB:
retval = __glXGetArrayNormalized(state, attrib, index, data);
break;
}
return retval;
}
static void
get_vertex_attrib(struct glx_context * gc, unsigned vop,
GLuint index, GLenum pname, xReply * reply)
{
Display *const dpy = gc->currentDpy;
GLubyte *const pc = __glXSetupVendorRequest(gc,
X_GLXVendorPrivateWithReply,
vop, 8);
*((uint32_t *) (pc + 0)) = index;
*((uint32_t *) (pc + 4)) = pname;
(void) _XReply(dpy, reply, 0, False);
}
void
__indirect_glGetVertexAttribiv(GLuint index, GLenum pname, GLint * params)
{
struct glx_context *const gc = __glXGetCurrentContext();
Display *const dpy = gc->currentDpy;
__GLXattribute *state = (__GLXattribute *) (gc->client_state_private);
xGLXSingleReply reply;
get_vertex_attrib(gc, 1303, index, pname, (xReply *) & reply);
if (reply.size != 0) {
GLintptr data;
if (get_attrib_array_data(state, index, pname, &data)) {
*params = (GLint) data;
}
else {
if (reply.size == 1) {
*params = (GLint) reply.pad3;
}
else {
_XRead(dpy, (void *) params, 4 * reply.size);
}
}
}
UnlockDisplay(dpy);
SyncHandle();
}
void
__indirect_glGetVertexAttribfv(GLuint index, GLenum pname,
GLfloat * params)
{
struct glx_context *const gc = __glXGetCurrentContext();
Display *const dpy = gc->currentDpy;
__GLXattribute *state = (__GLXattribute *) (gc->client_state_private);
xGLXSingleReply reply;
get_vertex_attrib(gc, 1302, index, pname, (xReply *) & reply);
if (reply.size != 0) {
GLintptr data;
if (get_attrib_array_data(state, index, pname, &data)) {
*params = (GLfloat) data;
}
else {
if (reply.size == 1) {
(void) memcpy(params, &reply.pad3, sizeof(GLfloat));
}
else {
_XRead(dpy, (void *) params, 4 * reply.size);
}
}
}
UnlockDisplay(dpy);
SyncHandle();
}
void
__indirect_glGetVertexAttribdv(GLuint index, GLenum pname,
GLdouble * params)
{
struct glx_context *const gc = __glXGetCurrentContext();
Display *const dpy = gc->currentDpy;
__GLXattribute *state = (__GLXattribute *) (gc->client_state_private);
xGLXSingleReply reply;
get_vertex_attrib(gc, 1301, index, pname, (xReply *) & reply);
if (reply.size != 0) {
GLintptr data;
if (get_attrib_array_data(state, index, pname, &data)) {
*params = (GLdouble) data;
}
else {
if (reply.size == 1) {
(void) memcpy(params, &reply.pad3, sizeof(GLdouble));
}
else {
_XRead(dpy, (void *) params, 8 * reply.size);
}
}
}
UnlockDisplay(dpy);
SyncHandle();
}
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