void GLAPIENTRY _mesa_noop_DrawElements(GLenum mode, GLsizei count, GLenum type,
const GLvoid *indices)
{
GET_CURRENT_CONTEXT(ctx);
GLint i;
if (!_mesa_validate_DrawElements( ctx, mode, count, type, indices ))
return;
CALL_Begin(GET_DISPATCH(), (mode));
switch (type) {
case GL_UNSIGNED_BYTE:
for (i = 0 ; i < count ; i++)
CALL_ArrayElement(GET_DISPATCH(), ( ((GLubyte *)indices)[i] ));
break;
case GL_UNSIGNED_SHORT:
for (i = 0 ; i < count ; i++)
CALL_ArrayElement(GET_DISPATCH(), ( ((GLushort *)indices)[i] ));
break;
case GL_UNSIGNED_INT:
for (i = 0 ; i < count ; i++)
CALL_ArrayElement(GET_DISPATCH(), ( ((GLuint *)indices)[i] ));
break;
default:
_mesa_error( ctx, GL_INVALID_ENUM, "glDrawElements(type)" );
break;
}
CALL_End(GET_DISPATCH(), ());
}
static void GLAPIENTRY _save_OBE_DrawElements(GLenum mode, GLsizei count, GLenum type,
const GLvoid *indices)
{
GET_CURRENT_CONTEXT(ctx);
GLint i;
if (!_mesa_validate_DrawElements( ctx, mode, count, type, indices ))
return;
_save_NotifyBegin( ctx, mode | PRIM_WEAK );
switch (type) {
case GL_UNSIGNED_BYTE:
for (i = 0 ; i < count ; i++)
GL_CALL(ArrayElement)( ((GLubyte *)indices)[i] );
break;
case GL_UNSIGNED_SHORT:
for (i = 0 ; i < count ; i++)
GL_CALL(ArrayElement)( ((GLushort *)indices)[i] );
break;
case GL_UNSIGNED_INT:
for (i = 0 ; i < count ; i++)
GL_CALL(ArrayElement)( ((GLuint *)indices)[i] );
break;
default:
_mesa_error( ctx, GL_INVALID_ENUM, "glDrawElements(type)" );
break;
}
GL_CALL(End)();
}
static void GLAPIENTRY
vbo_exec_DrawElements(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices)
{
GET_CURRENT_CONTEXT(ctx);
GLuint min_index = 0;
GLuint max_index = 0;
if (!_mesa_validate_DrawElements( ctx, mode, count, type, indices ))
return;
if (!vbo_validate_shaders(ctx)) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glDrawElements(bad shader)");
return;
}
if (ctx->Array.ElementArrayBufferObj->Name) {
const GLvoid *map = ctx->Driver.MapBuffer(ctx,
GL_ELEMENT_ARRAY_BUFFER_ARB,
GL_READ_ONLY,
ctx->Array.ElementArrayBufferObj);
get_minmax_index(count, type, ADD_POINTERS(map, indices), &min_index, &max_index);
ctx->Driver.UnmapBuffer(ctx,
GL_ELEMENT_ARRAY_BUFFER_ARB,
ctx->Array.ElementArrayBufferObj);
}
else {
get_minmax_index(count, type, indices, &min_index, &max_index);
}
vbo_exec_DrawRangeElements(mode, min_index, max_index, count, type, indices);
}
/**
* Called by glDrawElements() in immediate mode.
*/
static void GLAPIENTRY
vbo_exec_DrawElements(GLenum mode, GLsizei count, GLenum type,
const GLvoid *indices)
{
GET_CURRENT_CONTEXT(ctx);
if (MESA_VERBOSE & VERBOSE_DRAW)
_mesa_debug(ctx, "glDrawElements(%s, %u, %s, %p)\n",
_mesa_lookup_enum_by_nr(mode), count,
_mesa_lookup_enum_by_nr(type), indices);
if (!_mesa_validate_DrawElements( ctx, mode, count, type, indices, 0 ))
return;
vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0,
count, type, indices, 0, 1, 0);
}
/* Could do better by copying the arrays and element list intact and
* then emitting an indexed prim at runtime.
*/
static void GLAPIENTRY
_save_OBE_DrawElements(GLenum mode, GLsizei count, GLenum type,
const GLvoid * indices)
{
GET_CURRENT_CONTEXT(ctx);
struct vbo_save_context *save = &vbo_context(ctx)->save;
GLint i;
if (!_mesa_validate_DrawElements(ctx, mode, count, type, indices, 0))
return;
if (save->out_of_memory)
return;
_ae_map_vbos(ctx);
if (_mesa_is_bufferobj(ctx->Array.ArrayObj->ElementArrayBufferObj))
indices =
ADD_POINTERS(ctx->Array.ArrayObj->ElementArrayBufferObj->Pointer, indices);
vbo_save_NotifyBegin(ctx, (mode | VBO_SAVE_PRIM_WEAK |
VBO_SAVE_PRIM_NO_CURRENT_UPDATE));
switch (type) {
case GL_UNSIGNED_BYTE:
for (i = 0; i < count; i++)
CALL_ArrayElement(GET_DISPATCH(), (((GLubyte *) indices)[i]));
break;
case GL_UNSIGNED_SHORT:
for (i = 0; i < count; i++)
CALL_ArrayElement(GET_DISPATCH(), (((GLushort *) indices)[i]));
break;
case GL_UNSIGNED_INT:
for (i = 0; i < count; i++)
CALL_ArrayElement(GET_DISPATCH(), (((GLuint *) indices)[i]));
break;
default:
_mesa_error(ctx, GL_INVALID_ENUM, "glDrawElements(type)");
break;
}
CALL_End(GET_DISPATCH(), ());
_ae_unmap_vbos(ctx);
}
