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vbo: rewrite some code in playback_copy_to_current() 

I think this is a little easier to understand.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
This commit is contained in:
Brian Paul 2018-01-12 13:17:10 -07:00
parent ad3b162b81
commit 4edc8fdcdc
1 changed files with 6 additions and 8 deletions
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14
src/mesa/vbo/vbo_save_draw.c
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@ -51,7 +51,6 @@ playback_copy_to_current(struct gl_context *ctx,
fi_type vertex[VBO_ATTRIB_MAX * 4];
fi_type *data;
GLbitfield64 mask;
GLuint offset;
if (node->current_size == 0)
return;
@ -60,14 +59,13 @@ playback_copy_to_current(struct gl_context *ctx,
data = node->current_data;
}
else {
data = vertex;
/* Position of last vertex */
const GLuint pos = node->vertex_count > 0 ? node->vertex_count - 1 : 0;
/* Offset to last vertex in the vertex buffer */
const GLuint offset = node->buffer_offset
+ pos * node->vertex_size * sizeof(GLfloat);
if (node->vertex_count)
offset = (node->buffer_offset +
(node->vertex_count - 1)
* node->vertex_size * sizeof(GLfloat));
else
offset = node->buffer_offset;
data = vertex;
ctx->Driver.GetBufferSubData(ctx, offset,
node->vertex_size * sizeof(GLfloat),