diff options
Diffstat (limited to 'src/mesa/main/bufferobj.c')
| -rw-r--r-- | src/mesa/main/bufferobj.c | 64 |
1 files changed, 57 insertions, 7 deletions
diff --git a/src/mesa/main/bufferobj.c b/src/mesa/main/bufferobj.c index 22d14baa560..b971014e6e5 100644 --- a/src/mesa/main/bufferobj.c +++ b/src/mesa/main/bufferobj.c @@ -1577,6 +1577,20 @@ _mesa_MapBuffer(GLenum target, GLenum access) if (!bufObj) return NULL; + if (accessFlags & GL_MAP_READ_BIT && + !(bufObj->StorageFlags & GL_MAP_READ_BIT)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glMapBuffer(invalid read flag)"); + return NULL; + } + + if (accessFlags & GL_MAP_WRITE_BIT && + !(bufObj->StorageFlags & GL_MAP_WRITE_BIT)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glMapBuffer(invalid write flag)"); + return NULL; + } + if (_mesa_bufferobj_mapped(bufObj)) { _mesa_error(ctx, GL_INVALID_OPERATION, "glMapBufferARB(already mapped)"); return NULL; @@ -1931,6 +1945,7 @@ _mesa_MapBufferRange(GLenum target, GLintptr offset, GLsizeiptr length, GET_CURRENT_CONTEXT(ctx); struct gl_buffer_object *bufObj; void *map; + GLbitfield allowed_access; ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, NULL); @@ -1965,13 +1980,20 @@ _mesa_MapBufferRange(GLenum target, GLintptr offset, GLsizeiptr length, return NULL; } - if (access & ~(GL_MAP_READ_BIT | - GL_MAP_WRITE_BIT | - GL_MAP_INVALIDATE_RANGE_BIT | - GL_MAP_INVALIDATE_BUFFER_BIT | - GL_MAP_FLUSH_EXPLICIT_BIT | - GL_MAP_UNSYNCHRONIZED_BIT)) { - /* generate an error if any undefind bit is set */ + allowed_access = GL_MAP_READ_BIT | + GL_MAP_WRITE_BIT | + GL_MAP_INVALIDATE_RANGE_BIT | + GL_MAP_INVALIDATE_BUFFER_BIT | + GL_MAP_FLUSH_EXPLICIT_BIT | + GL_MAP_UNSYNCHRONIZED_BIT; + + if (ctx->Extensions.ARB_buffer_storage) { + allowed_access |= GL_MAP_PERSISTENT_BIT | + GL_MAP_COHERENT_BIT; + } + + if (access & ~allowed_access) { + /* generate an error if any other than allowed bit is set */ _mesa_error(ctx, GL_INVALID_VALUE, "glMapBufferRange(access)"); return NULL; } @@ -2002,6 +2024,34 @@ _mesa_MapBufferRange(GLenum target, GLintptr offset, GLsizeiptr length, if (!bufObj) return NULL; + if (access & GL_MAP_READ_BIT && + !(bufObj->StorageFlags & GL_MAP_READ_BIT)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glMapBufferRange(invalid read flag)"); + return NULL; + } + + if (access & GL_MAP_WRITE_BIT && + !(bufObj->StorageFlags & GL_MAP_WRITE_BIT)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glMapBufferRange(invalid write flag)"); + return NULL; + } + + if (access & GL_MAP_COHERENT_BIT && + !(bufObj->StorageFlags & GL_MAP_COHERENT_BIT)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glMapBufferRange(invalid coherent flag)"); + return NULL; + } + + if (access & GL_MAP_PERSISTENT_BIT && + !(bufObj->StorageFlags & GL_MAP_PERSISTENT_BIT)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glMapBufferRange(invalid persistent flag)"); + return NULL; + } + if (offset + length > bufObj->Size) { _mesa_error(ctx, GL_INVALID_VALUE, "glMapBufferRange(offset + length > size)"); |