basic work on GL_ARB_vertex_buffer_object

1 files changed, 182 insertions, 4 deletions

diff --git a/src/mesa/main/bufferobj.c b/src/mesa/main/bufferobj.c
index 7742e29a8b3..3a7a413e973 100644
--- a/src/mesa/main/bufferobj.c
+++ b/src/mesa/main/bufferobj.c
@@ -1,5 +1,3 @@
-/* $Id: bufferobj.c,v 1.1 2003/03/29 17:01:00 brianp Exp $ */
-
 /*
  * Mesa 3-D graphics library
  * Version:  5.1
@@ -34,22 +32,51 @@
 
 #include "glheader.h"
 #include "imports.h"
+#include "context.h"
 #include "bufferobj.h"
 
 
 void
 _mesa_BindBufferARB(GLenum target, GLuint buffer)
 {
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (target == GL_ARRAY_BUFFER_ARB) {
+
+   }
+   else if (target == GL_ELEMENT_ARRAY_BUFFER_ARB) {
+
+   }
+   else {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glBindBufferARB(target)");
+      return;
+   }
 }
 
 void
-_mesa_DeleteBuffersARB(GLsizei n, const GLuint * buffer)
+_mesa_DeleteBuffersARB(GLsizei n, const GLuint *buffer)
 {
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (n < 0) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "glDeleteBuffersARB(n)");
+      return;
+   }
+
 }
 
 void
-_mesa_GenBuffersARB(GLsizei n, GLuint * buffer)
+_mesa_GenBuffersARB(GLsizei n, GLuint *buffer)
 {
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (n < 0) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "glGenBuffersARB(n)");
+      return;
+   }
 }
 
 GLboolean
@@ -62,37 +89,188 @@ void
 _mesa_BufferDataARB(GLenum target, GLsizeiptrARB size,
                     const GLvoid * data, GLenum usage)
 {
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (size < 0) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "glBufferDataARB(size < 0)");
+      return;
+   }
+
+   switch (usage) {
+      case GL_STREAM_DRAW_ARB:
+      case GL_STREAM_READ_ARB:
+      case GL_STREAM_COPY_ARB:
+      case GL_STATIC_DRAW_ARB:
+      case GL_STATIC_READ_ARB:
+      case GL_STATIC_COPY_ARB:
+      case GL_DYNAMIC_DRAW_ARB:
+      case GL_DYNAMIC_READ_ARB:
+      case GL_DYNAMIC_COPY_ARB:
+         /* OK */
+         break;
+      default:
+         _mesa_error(ctx, GL_INVALID_ENUM, "glBufferDataARB(usage)");
+         return;
+   }
+
+   if (target == GL_ARRAY_BUFFER_ARB) {
+
+   }
+   else if (target == GL_ELEMENT_ARRAY_BUFFER_ARB) {
+
+   }
+   else {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glBufferDataARB(target)");
+      return;
+   }
 }
 
 void
 _mesa_BufferSubDataARB(GLenum target, GLintptrARB offset,
                        GLsizeiptrARB size, const GLvoid * data)
 {
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (size < 0) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "glBufferSubDataARB(size < 0)");
+      return;
+   }
+
+   if (target == GL_ARRAY_BUFFER_ARB) {
+
+   }
+   else if (target == GL_ELEMENT_ARRAY_BUFFER_ARB) {
+
+   }
+   else {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glBufferSubDataARB(target)");
+      return;
+   }
 }
 
 void
 _mesa_GetBufferSubDataARB(GLenum target, GLintptrARB offset,
                           GLsizeiptrARB size, void * data)
 {
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (size < 0) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "glGetBufferSubDataARB(size < 0)");
+      return;
+   }
+
+   if (target == GL_ARRAY_BUFFER_ARB) {
+
+   }
+   else if (target == GL_ELEMENT_ARRAY_BUFFER_ARB) {
+
+   }
+   else {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferSubDataARB(target)");
+      return;
+   }
 }
 
 void
 _mesa_MapBufferARB(GLenum target, GLenum access)
 {
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   switch (access) {
+      case GL_READ_ONLY_ARB:
+      case GL_WRITE_ONLY_ARB:
+      case GL_READ_WRITE_ARB:
+         /* OK */
+         break;
+      default:
+         _mesa_error(ctx, GL_INVALID_ENUM, "glMapBufferARB(access)");
+         return;
+   }
+
+   if (target == GL_ARRAY_BUFFER_ARB) {
+
+   }
+   else if (target == GL_ELEMENT_ARRAY_BUFFER_ARB) {
+
+   }
+   else {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glMapBufferARB(target)");
+      return;
+   }
 }
 
 GLboolean
 _mesa_UnmapBufferARB(GLenum target)
 {
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
+
+   if (target == GL_ARRAY_BUFFER_ARB) {
+
+   }
+   else if (target == GL_ELEMENT_ARRAY_BUFFER_ARB) {
+
+   }
+   else {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glUnmapBufferARB(target)");
+      return GL_FALSE;
+   }
    return GL_FALSE;
 }
 
 void
 _mesa_GetBufferParameterivARB(GLenum target, GLenum pname, GLint *params)
 {
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   switch (pname) {
+      case GL_BUFFER_SIZE_ARB:
+      case GL_BUFFER_USAGE_ARB:
+      case GL_BUFFER_ACCESS_ARB:
+      case GL_BUFFER_MAPPED_ARB:
+         /* ok */
+         break;
+      default:
+         _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferParameterivARB(pname)");
+         return;
+   }
+
+   if (target == GL_ARRAY_BUFFER_ARB) {
+
+   }
+   else if (target == GL_ELEMENT_ARRAY_BUFFER_ARB) {
+
+   }
+   else {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferParameterARB(target)");
+      return;
+   }
 }
 
 void
 _mesa_GetBufferPointervARB(GLenum target, GLenum pname, GLvoid **params)
 {
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (pname != GL_BUFFER_MAP_POINTER_ARB) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferPointervARB(pname)");
+      return;
+   }
+
+   if (target == GL_ARRAY_BUFFER_ARB) {
+
+   }
+   else if (target == GL_ELEMENT_ARRAY_BUFFER_ARB) {
+
+   }
+   else {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferPointervARB(target)");
+      return;
+   }
 }