gallium: remove redundant size from the constant buffer

reuse the size of the actual buffer

2 files changed, 3 insertions, 4 deletions

diff --git a/src/gallium/drivers/softpipe/sp_draw_arrays.c b/src/gallium/drivers/softpipe/sp_draw_arrays.c
index 424bd56846..ed3e8f95ae 100644
--- a/src/gallium/drivers/softpipe/sp_draw_arrays.c
+++ b/src/gallium/drivers/softpipe/sp_draw_arrays.c
@@ -49,14 +49,14 @@ softpipe_map_constant_buffers(struct softpipe_context *sp)
    struct pipe_winsys *ws = sp->pipe.winsys;
    uint i;
    for (i = 0; i < PIPE_SHADER_TYPES; i++) {
-      if (sp->constants[i].size)
+      if (sp->constants[i].buffer && sp->constants[i].buffer->size)
          sp->mapped_constants[i] = ws->buffer_map(ws, sp->constants[i].buffer,
                                                   PIPE_BUFFER_USAGE_CPU_READ);
    }
 
    draw_set_mapped_constant_buffer(sp->draw,
                                    sp->mapped_constants[PIPE_SHADER_VERTEX],
-                                   sp->constants[PIPE_SHADER_VERTEX].size);
+                                   sp->constants[PIPE_SHADER_VERTEX].buffer->size);
 }
 
 static void
@@ -73,7 +73,7 @@ softpipe_unmap_constant_buffers(struct softpipe_context *sp)
    draw_set_mapped_constant_buffer(sp->draw, NULL, 0);
 
    for (i = 0; i < 2; i++) {
-      if (sp->constants[i].size)
+      if (sp->constants[i].buffer && sp->constants[i].buffer->size)
          ws->buffer_unmap(ws, sp->constants[i].buffer);
       sp->mapped_constants[i] = NULL;
    }
diff --git a/src/gallium/drivers/softpipe/sp_state_fs.c b/src/gallium/drivers/softpipe/sp_state_fs.c
index e5b609cf6c..15815160ed 100644
--- a/src/gallium/drivers/softpipe/sp_state_fs.c
+++ b/src/gallium/drivers/softpipe/sp_state_fs.c
@@ -155,7 +155,6 @@ softpipe_set_constant_buffer(struct pipe_context *pipe,
    winsys_buffer_reference(ws,
 			 &softpipe->constants[shader].buffer,
 			 buf ? buf->buffer : NULL);
-   softpipe->constants[shader].size = buf ? buf->size : 0;
 
    softpipe->dirty |= SP_NEW_CONSTANTS;
 }