From 79cafa0df342f9fdc142ad2ed7d910044f5f4c4f Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Fri, 26 Jan 2018 14:49:41 -0700 Subject: [PATCH] mesa: shrink gl_vertex_array MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Inspired by Marek's earlier patch, but goes a little further. Sort fields from largest to smallest. Use bitfields. Reduced from 48 bytes to 32. Also reduces size of gl_vertex_array_object from 4144 to 3632 Reviewed-by: Marek Olšák --- src/mesa/main/mtypes.h | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h index b0eeeaf..78132de 100644 --- a/src/mesa/main/mtypes.h +++ b/src/mesa/main/mtypes.h @@ -1497,18 +1497,19 @@ struct gl_pixelstore_attrib */ struct gl_vertex_array { - GLint Size; /**< components per element (1,2,3,4) */ - GLenum16 Type; /**< datatype: GL_FLOAT, GL_INT, etc */ - GLenum16 Format; /**< default: GL_RGBA, but may be GL_BGRA */ + /** if NULL, vertex data are in user memory */ + struct gl_buffer_object *BufferObj; + /** Pointer into user memory, or offset into the BufferObj */ + const GLubyte *Ptr; GLsizei StrideB; /**< actual stride in bytes */ - GLuint _ElementSize; /**< size of each element in bytes */ - const GLubyte *Ptr; /**< Points to array data */ - GLboolean Normalized; /**< GL_ARB_vertex_program */ - GLboolean Integer; /**< Integer-valued? */ - GLboolean Doubles; /**< double precision values are not converted to floats */ GLuint InstanceDivisor; /**< GL_ARB_instanced_arrays */ - - struct gl_buffer_object *BufferObj;/**< GL_ARB_vertex_buffer_object */ + GLenum16 Type; /**< datatype: GL_FLOAT, GL_INT, etc */ + GLenum16 Format; /**< default: GL_RGBA, but may be GL_BGRA */ + unsigned Size:4; /**< components per element (1,2,3,4) */ + unsigned _ElementSize:8; /**< in bytes, up to 4*sizeof(GLdouble) */ + unsigned Normalized:1; /**< GL_ARB_vertex_program */ + unsigned Integer:1; /**< Integer-valued? */ + unsigned Doubles:1; /**< doubles not converted to floats */ }; -- 2.7.4