indirect_vertex_program.c [plain text]
#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)
{
__GLXcontext *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_glEnableVertexAttribArrayARB(GLuint index)
{
do_vertex_attrib_enable(index, GL_TRUE);
}
void
__indirect_glDisableVertexAttribArrayARB(GLuint index)
{
do_vertex_attrib_enable(index, GL_FALSE);
}
static void
get_parameter(unsigned opcode, unsigned size, GLenum target, GLuint index,
void *params)
{
__GLXcontext *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_glGetVertexAttribPointervNV(GLuint index, GLenum pname,
GLvoid ** pointer)
{
__GLXcontext *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);
}
}
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(__GLXcontext * 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_glGetVertexAttribivARB(GLuint index, GLenum pname, GLint * params)
{
__GLXcontext *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_glGetVertexAttribfvARB(GLuint index, GLenum pname,
GLfloat * params)
{
__GLXcontext *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_glGetVertexAttribdvARB(GLuint index, GLenum pname,
GLdouble * params)
{
__GLXcontext *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();
}