return retval;
}
-static GLboolean brw_need_rebase( GLcontext *ctx,
- const struct gl_client_array *arrays[],
- const struct _mesa_index_buffer *ib,
- GLuint min_index )
-{
- if (min_index == 0)
- return GL_FALSE;
-
- if (ib) {
- if (!vbo_all_varyings_in_vbos(arrays))
- return GL_TRUE;
- else
- return GL_FALSE;
- }
- else {
- /* Hmm. This isn't quite what I wanted. BRW can actually
- * handle the mixed case well enough that we shouldn't need to
- * rebase. However, it's probably not very common, nor hugely
- * expensive to do it this way:
- */
- if (!vbo_all_varyings_in_vbos(arrays))
- return GL_TRUE;
- else
- return GL_FALSE;
- }
-}
-
-
void brw_draw_prims( GLcontext *ctx,
const struct gl_client_array *arrays[],
const struct _mesa_prim *prim,
GLuint nr_prims,
const struct _mesa_index_buffer *ib,
+ GLboolean index_bounds_valid,
GLuint min_index,
GLuint max_index )
{
GLboolean retval;
- /* Decide if we want to rebase. If so we end up recursing once
- * only into this function.
- */
- if (brw_need_rebase( ctx, arrays, ib, min_index )) {
- vbo_rebase_prims( ctx, arrays,
- prim, nr_prims,
- ib, min_index, max_index,
- brw_draw_prims );
-
- return;
+ if (!vbo_all_varyings_in_vbos(arrays)) {
+ if (!index_bounds_valid)
+ vbo_get_minmax_index(ctx, prim, ib, &min_index, &max_index);
+
+ /* Decide if we want to rebase. If so we end up recursing once
+ * only into this function.
+ */
+ if (min_index != 0) {
+ vbo_rebase_prims(ctx, arrays,
+ prim, nr_prims,
+ ib, min_index, max_index,
+ brw_draw_prims );
+ return;
+ }
}
/* Make a first attempt at drawing:
/**
* Compute min and max elements for glDraw[Range]Elements() calls.
*/
-static void
-get_minmax_index(GLuint count, GLuint type, const GLvoid *indices,
- GLuint *min_index, GLuint *max_index)
+void
+vbo_get_minmax_index(GLcontext *ctx,
+ const struct _mesa_prim *prim,
+ const struct _mesa_index_buffer *ib,
+ GLuint *min_index, GLuint *max_index)
{
GLuint i;
+ GLsizei count = prim->count;
+ const void *indices;
+
+ if (ib->obj->Name) {
+ const GLvoid *map = ctx->Driver.MapBuffer(ctx,
+ GL_ELEMENT_ARRAY_BUFFER_ARB,
+ GL_READ_ONLY,
+ ib->obj);
+ indices = ADD_POINTERS(map, ib->ptr);
+ } else {
+ indices = ib->ptr;
+ }
- switch(type) {
+ switch (ib->type) {
case GL_UNSIGNED_INT: {
- const GLuint *ui_indices = (const GLuint *)indices;
+ const GLuint *ui_indices = (const GLuint *)ib->ptr;
GLuint max_ui = ui_indices[count-1];
GLuint min_ui = ui_indices[0];
for (i = 0; i < count; i++) {
assert(0);
break;
}
+
+ if (ib->obj->Name != 0) {
+ ctx->Driver.UnmapBuffer(ctx,
+ GL_ELEMENT_ARRAY_BUFFER_ARB,
+ ib->obj);
+ }
}
prim[0].indexed = 0;
vbo->draw_prims( ctx, exec->array.inputs, prim, 1, NULL,
- start, start + count - 1 );
+ GL_TRUE, start, start + count - 1 );
#if 0
print_draw_arrays(ctx, exec, mode, start, count);
ctx->Array.ElementArrayBufferObj);
}
-
-static void GLAPIENTRY
-vbo_exec_DrawRangeElements(GLenum mode,
- GLuint start, GLuint end,
- GLsizei count, GLenum type, const GLvoid *indices)
+/* Inner support for both _mesa_DrawElements and _mesa_DrawRangeElements */
+static void
+vbo_validated_drawrangeelements(GLcontext *ctx, GLenum mode,
+ GLboolean index_bounds_valid,
+ GLuint start, GLuint end,
+ GLsizei count, GLenum type,
+ const GLvoid *indices)
{
- GET_CURRENT_CONTEXT(ctx);
struct vbo_context *vbo = vbo_context(ctx);
struct vbo_exec_context *exec = &vbo->exec;
struct _mesa_index_buffer ib;
struct _mesa_prim prim[1];
- if (!_mesa_validate_DrawRangeElements( ctx, mode, start, end, count,
- type, indices ))
- return;
-
- if (end >= ctx->Array.ArrayObj->_MaxElement) {
- /* the max element is out of bounds of one or more enabled arrays */
- _mesa_warning(ctx, "glDraw[Range]Elements(start %u, end %u, count %d, "
- "type 0x%x, indices=%p)\n"
- "\tindex=%u is out of bounds (max=%u) "
- "Element Buffer %u (size %d)",
- start, end, count, type, indices, end,
- ctx->Array.ArrayObj->_MaxElement - 1,
- ctx->Array.ElementArrayBufferObj->Name,
- ctx->Array.ElementArrayBufferObj->Size);
-
- if (0)
- dump_element_buffer(ctx, type);
-
- if (0)
- _mesa_print_arrays(ctx);
- return;
- }
- else if (0) {
- _mesa_printf("glDraw[Range]Elements"
- "(start %u, end %u, type 0x%x, count %d) ElemBuf %u\n",
- start, end, type, count,
- ctx->Array.ElementArrayBufferObj->Name);
- }
-
-#if 0
- check_draw_elements_data(ctx, count, type, indices);
-#else
- (void) check_draw_elements_data;
-#endif
-
FLUSH_CURRENT( ctx, 0 );
if (ctx->NewState)
return;
}
- bind_arrays( ctx );
-
if (ctx->NewState)
_mesa_update_state( ctx );
+ bind_arrays( ctx );
+
ib.count = count;
- ib.type = type;
+ ib.type = type;
ib.obj = ctx->Array.ElementArrayBufferObj;
ib.ptr = indices;
* for the latter case elsewhere.
*/
- vbo->draw_prims( ctx, exec->array.inputs, prim, 1, &ib, start, end );
+ vbo->draw_prims( ctx, exec->array.inputs, prim, 1, &ib,
+ index_bounds_valid, start, end );
}
-
static void GLAPIENTRY
-vbo_exec_DrawElements(GLenum mode, GLsizei count, GLenum type,
- const GLvoid *indices)
+vbo_exec_DrawRangeElements(GLenum mode,
+ GLuint start, GLuint end,
+ 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 ))
+ if (!_mesa_validate_DrawRangeElements( ctx, mode, start, end, count,
+ type, indices ))
return;
- if (!vbo_validate_shaders(ctx)) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glDrawElements(bad shader)");
+ if (end >= ctx->Array.ArrayObj->_MaxElement) {
+ /* the max element is out of bounds of one or more enabled arrays */
+ _mesa_warning(ctx, "glDraw[Range]Elements(start %u, end %u, count %d, "
+ "type 0x%x, indices=%p)\n"
+ "\tindex=%u is out of bounds (max=%u) "
+ "Element Buffer %u (size %d)",
+ start, end, count, type, indices, end,
+ ctx->Array.ArrayObj->_MaxElement - 1,
+ ctx->Array.ElementArrayBufferObj->Name,
+ ctx->Array.ElementArrayBufferObj->Size);
+
+ if (0)
+ dump_element_buffer(ctx, type);
+
+ if (0)
+ _mesa_print_arrays(ctx);
return;
}
+ else if (0) {
+ _mesa_printf("glDraw[Range]Elements"
+ "(start %u, end %u, type 0x%x, count %d) ElemBuf %u\n",
+ start, end, type, count,
+ ctx->Array.ElementArrayBufferObj->Name);
+ }
- if (ctx->Array.ElementArrayBufferObj->Name) {
- const GLvoid *map = ctx->Driver.MapBuffer(ctx,
- GL_ELEMENT_ARRAY_BUFFER_ARB,
- GL_READ_ONLY,
- ctx->Array.ElementArrayBufferObj);
+#if 0
+ check_draw_elements_data(ctx, count, type, indices);
+#else
+ (void) check_draw_elements_data;
+#endif
+
+ vbo_validated_drawrangeelements(ctx, mode, GL_TRUE, start, end,
+ count, type, indices);
+}
- 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);
- }
+static void GLAPIENTRY
+vbo_exec_DrawElements(GLenum mode, GLsizei count, GLenum type,
+ const GLvoid *indices)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if (!_mesa_validate_DrawElements( ctx, mode, count, type, indices ))
+ return;
- vbo_exec_DrawRangeElements(mode, min_index, max_index, count, type, indices);
+ vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0,
+ count, type, indices);
}
projects / mesa.git / commitdiff