init

src/glx/indirect_vertex_program.c

@@ -0,0 +1,293 @@
+/*
+ * (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();
+}