Module: Mesa
Branch: gallium-0.1
Commit: d55c10f75ee6cad28cf9e80b524ec7dad5fa52fd
URL:    
http://cgit.freedesktop.org/mesa/mesa/commit/?id=d55c10f75ee6cad28cf9e80b524ec7dad5fa52fd

Author: José Fonseca <[email protected]>
Date:   Wed Apr  8 17:08:54 2009 +0100

Revert "vbo: use MapBufferRange where available"

This reverts commit c4d1f4607abf3dfbcfcffc5c67bb89d420d3381a.

---

 src/mesa/vbo/vbo_exec.h      |   13 ++---
 src/mesa/vbo/vbo_exec_api.c  |   62 +++++++++-------------
 src/mesa/vbo/vbo_exec_draw.c |  118 ++++++------------------------------------
 src/mesa/vbo/vbo_save.h      |    2 +-
 src/mesa/vbo/vbo_save_api.c  |   16 +++---
 5 files changed, 57 insertions(+), 154 deletions(-)

diff --git a/src/mesa/vbo/vbo_exec.h b/src/mesa/vbo/vbo_exec.h
index 100bb8a..3ce3665 100644
--- a/src/mesa/vbo/vbo_exec.h
+++ b/src/mesa/vbo/vbo_exec.h
@@ -43,7 +43,7 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 /* Wierd implementation stuff:
  */
-#define VBO_VERT_BUFFER_SIZE (1024*64) /* bytes */
+#define VBO_VERT_BUFFER_SIZE (1024*16) /* dwords == 64k */
 #define VBO_MAX_ATTR_CODEGEN 16 
 #define ERROR_ATTRIB 16
 
@@ -78,15 +78,14 @@ struct vbo_exec_context
 
    struct {
       struct gl_buffer_object *bufferobj;
+      GLubyte *buffer_map;
 
-      GLuint vertex_size;       /* in dwords */
+      GLuint vertex_size;
 
       struct _mesa_prim prim[VBO_MAX_PRIM];
       GLuint prim_count;
 
-      GLfloat *buffer_map;
-      GLfloat *buffer_ptr;              /* cursor, points into buffer */
-      GLuint   buffer_used;             /* in bytes */
+      GLfloat *vbptr;               /* cursor, points into buffer */
       GLfloat vertex[VBO_ATTRIB_MAX*4]; /* current vertex */
 
       GLuint vert_count;
@@ -141,7 +140,6 @@ struct vbo_exec_context
 void vbo_exec_init( GLcontext *ctx );
 void vbo_exec_destroy( GLcontext *ctx );
 void vbo_exec_invalidate_state( GLcontext *ctx, GLuint new_state );
-void vbo_exec_FlushVertices_internal( GLcontext *ctx, GLboolean unmap );
 
 void vbo_exec_BeginVertices( GLcontext *ctx );
 void vbo_exec_FlushVertices( GLcontext *ctx, GLuint flags );
@@ -155,8 +153,7 @@ void vbo_exec_array_destroy( struct vbo_exec_context *exec 
);
 
 void vbo_exec_vtx_init( struct vbo_exec_context *exec );
 void vbo_exec_vtx_destroy( struct vbo_exec_context *exec );
-void vbo_exec_vtx_flush( struct vbo_exec_context *exec, GLboolean unmap );
-void vbo_exec_vtx_map( struct vbo_exec_context *exec );
+void vbo_exec_vtx_flush( struct vbo_exec_context *exec );
 void vbo_exec_vtx_wrap( struct vbo_exec_context *exec );
 
 void vbo_exec_eval_update( struct vbo_exec_context *exec );
diff --git a/src/mesa/vbo/vbo_exec_api.c b/src/mesa/vbo/vbo_exec_api.c
index 4c8d0c2..093e3d2 100644
--- a/src/mesa/vbo/vbo_exec_api.c
+++ b/src/mesa/vbo/vbo_exec_api.c
@@ -62,7 +62,7 @@ static void vbo_exec_wrap_buffers( struct vbo_exec_context 
*exec )
    if (exec->vtx.prim_count == 0) {
       exec->vtx.copied.nr = 0;
       exec->vtx.vert_count = 0;
-      exec->vtx.buffer_ptr = exec->vtx.buffer_map;
+      exec->vtx.vbptr = (GLfloat *)exec->vtx.buffer_map;
    }
    else {
       GLuint last_begin = exec->vtx.prim[exec->vtx.prim_count-1].begin;
@@ -80,7 +80,7 @@ static void vbo_exec_wrap_buffers( struct vbo_exec_context 
*exec )
       /* Execute the buffer and save copied vertices.
        */
       if (exec->vtx.vert_count)
-        vbo_exec_vtx_flush( exec, GL_FALSE );
+        vbo_exec_vtx_flush( exec );
       else {
         exec->vtx.prim_count = 0;
         exec->vtx.copied.nr = 0;
@@ -121,9 +121,9 @@ void vbo_exec_vtx_wrap( struct vbo_exec_context *exec )
    assert(exec->vtx.max_vert - exec->vtx.vert_count > exec->vtx.copied.nr);
 
    for (i = 0 ; i < exec->vtx.copied.nr ; i++) {
-      _mesa_memcpy( exec->vtx.buffer_ptr, data, 
+      _mesa_memcpy( exec->vtx.vbptr, data, 
                    exec->vtx.vertex_size * sizeof(GLfloat));
-      exec->vtx.buffer_ptr += exec->vtx.vertex_size;
+      exec->vtx.vbptr += exec->vtx.vertex_size;
       data += exec->vtx.vertex_size;
       exec->vtx.vert_count++;
    }
@@ -252,10 +252,9 @@ static void vbo_exec_wrap_upgrade_vertex( struct 
vbo_exec_context *exec,
    exec->vtx.attrsz[attr] = newsz;
 
    exec->vtx.vertex_size += newsz - oldsz;
-   exec->vtx.max_vert = ((VBO_VERT_BUFFER_SIZE - exec->vtx.buffer_used) / 
-                         (exec->vtx.vertex_size * sizeof(GLfloat)));
+   exec->vtx.max_vert = VBO_VERT_BUFFER_SIZE / exec->vtx.vertex_size;
    exec->vtx.vert_count = 0;
-   exec->vtx.buffer_ptr = exec->vtx.buffer_map;
+   exec->vtx.vbptr = (GLfloat *)exec->vtx.buffer_map;
    
 
    /* Recalculate all the attrptr[] values
@@ -281,10 +280,10 @@ static void vbo_exec_wrap_upgrade_vertex( struct 
vbo_exec_context *exec,
    if (exec->vtx.copied.nr)
    {
       GLfloat *data = exec->vtx.copied.buffer;
-      GLfloat *dest = exec->vtx.buffer_ptr;
+      GLfloat *dest = exec->vtx.vbptr;
       GLuint j;
 
-      assert(exec->vtx.buffer_ptr == exec->vtx.buffer_map);
+      assert(exec->vtx.vbptr == (GLfloat *)exec->vtx.buffer_map);
       
       for (i = 0 ; i < exec->vtx.copied.nr ; i++) {
         for (j = 0 ; j < VBO_ATTRIB_MAX ; j++) {
@@ -310,7 +309,7 @@ static void vbo_exec_wrap_upgrade_vertex( struct 
vbo_exec_context *exec,
         }
       }
 
-      exec->vtx.buffer_ptr = dest;
+      exec->vtx.vbptr = dest;
       exec->vtx.vert_count += exec->vtx.copied.nr;
       exec->vtx.copied.nr = 0;
    }
@@ -375,9 +374,9 @@ do {                                                        
        \
       GLuint i;                                                        \
                                                                \
       for (i = 0; i < exec->vtx.vertex_size; i++)              \
-        exec->vtx.buffer_ptr[i] = exec->vtx.vertex[i];         \
+        exec->vtx.vbptr[i] = exec->vtx.vertex[i];              \
                                                                \
-      exec->vtx.buffer_ptr += exec->vtx.vertex_size;                   \
+      exec->vtx.vbptr += exec->vtx.vertex_size;                        \
       exec->ctx->Driver.NeedFlush |= FLUSH_STORED_VERTICES;    \
                                                                \
       if (++exec->vtx.vert_count >= exec->vtx.max_vert)                \
@@ -534,7 +533,7 @@ static void GLAPIENTRY vbo_exec_Begin( GLenum mode )
        * begin/end pairs.
        */
       if (exec->vtx.vertex_size && !exec->vtx.attrsz[0]) 
-        vbo_exec_FlushVertices_internal( ctx, GL_FALSE );
+        vbo_exec_FlushVertices( ctx, ~0 );
 
       i = exec->vtx.prim_count++;
       exec->vtx.prim[i].mode = mode;
@@ -568,7 +567,7 @@ static void GLAPIENTRY vbo_exec_End( void )
       ctx->Driver.CurrentExecPrimitive = PRIM_OUTSIDE_BEGIN_END;
 
       if (exec->vtx.prim_count == VBO_MAX_PRIM)
-        vbo_exec_vtx_flush( exec, GL_FALSE );
+        vbo_exec_vtx_flush( exec );    
    }
    else 
       _mesa_error( ctx, GL_INVALID_OPERATION, "glEnd" );
@@ -674,19 +673,23 @@ void vbo_use_buffer_objects(GLcontext *ctx)
     */
    GLuint bufName = 0xaabbccdd;
    GLenum target = GL_ARRAY_BUFFER_ARB;
+   GLenum access = GL_READ_WRITE_ARB;
    GLenum usage = GL_STREAM_DRAW_ARB;
-   GLsizei size = VBO_VERT_BUFFER_SIZE;
+   GLsizei size = VBO_VERT_BUFFER_SIZE * sizeof(GLfloat);
 
    /* Make sure this func is only used once */
    assert(exec->vtx.bufferobj == ctx->Array.NullBufferObj);
    if (exec->vtx.buffer_map) {
       _mesa_align_free(exec->vtx.buffer_map);
-      exec->vtx.buffer_map = NULL;
    }
 
    /* Allocate a real buffer object now */
    exec->vtx.bufferobj = ctx->Driver.NewBufferObject(ctx, bufName, target);
    ctx->Driver.BufferData(ctx, target, size, NULL, usage, exec->vtx.bufferobj);
+
+   /* and map it */
+   exec->vtx.buffer_map
+      = ctx->Driver.MapBuffer(ctx, target, access, exec->vtx.bufferobj);
 }
 
 
@@ -705,7 +708,7 @@ void vbo_exec_vtx_init( struct vbo_exec_context *exec )
                                  &exec->vtx.bufferobj,
                                  ctx->Array.NullBufferObj);
 
-   exec->vtx.buffer_map = (GLfloat *)ALIGN_MALLOC(VBO_VERT_BUFFER_SIZE, 64);
+   exec->vtx.buffer_map = ALIGN_MALLOC(VBO_VERT_BUFFER_SIZE * sizeof(GLfloat), 
64);
 
    vbo_exec_vtxfmt_init( exec );
 
@@ -752,34 +755,21 @@ void vbo_exec_BeginVertices( GLcontext *ctx )
 //   vbo_exec_vtx_map( exec );
 }
 
-void vbo_exec_FlushVertices_internal( GLcontext *ctx, GLboolean unmap )
+void vbo_exec_FlushVertices( GLcontext *ctx, GLuint flags )
 {
    struct vbo_exec_context *exec = &vbo_context(ctx)->exec;
 
-   if (exec->vtx.vert_count || unmap) {
-      vbo_exec_vtx_flush( exec, unmap );
+   if (exec->ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END)
+      return;
+
+   if (exec->vtx.vert_count) {
+      vbo_exec_vtx_flush( exec );
    }
 
    if (exec->vtx.vertex_size) {
       vbo_exec_copy_to_current( exec );
       reset_attrfv( exec );
    }
-}
-
-
-
-void vbo_exec_FlushVertices( GLcontext *ctx, GLuint flags )
-{
-   struct vbo_exec_context *exec = &vbo_context(ctx)->exec;
-
-   if (0) _mesa_printf("%s\n", __FUNCTION__);
-
-   if (exec->ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END) {
-      if (0) _mesa_printf("%s - inside begin/end\n", __FUNCTION__);
-      return;
-   }
-
-   vbo_exec_FlushVertices_internal( ctx, GL_TRUE );
 
    /* Need to do this to ensure BeginVertices gets called again:
     */
diff --git a/src/mesa/vbo/vbo_exec_draw.c b/src/mesa/vbo/vbo_exec_draw.c
index a89f150..ae43857 100644
--- a/src/mesa/vbo/vbo_exec_draw.c
+++ b/src/mesa/vbo/vbo_exec_draw.c
@@ -70,7 +70,7 @@ static GLuint vbo_copy_vertices( struct vbo_exec_context 
*exec )
    GLuint ovf, i;
    GLuint sz = exec->vtx.vertex_size;
    GLfloat *dst = exec->vtx.copied.buffer;
-   GLfloat *src = (exec->vtx.buffer_map + 
+   GLfloat *src = ((GLfloat *)exec->vtx.buffer_map + 
                   exec->vtx.prim[exec->vtx.prim_count-1].start * 
                   exec->vtx.vertex_size);
 
@@ -147,7 +147,7 @@ static void vbo_exec_bind_arrays( GLcontext *ctx )
    struct vbo_exec_context *exec = &vbo->exec;
    struct gl_client_array *arrays = exec->vtx.arrays;
    GLuint count = exec->vtx.vert_count;
-   GLubyte *data = (GLubyte *)exec->vtx.buffer_map;
+   GLubyte *data = exec->vtx.buffer_map;
    const GLuint *map;
    GLuint attr;
    GLbitfield varying_inputs = 0x0;
@@ -220,78 +220,10 @@ static void vbo_exec_bind_arrays( GLcontext *ctx )
 }
 
 
-static void vbo_exec_vtx_unmap( struct vbo_exec_context *exec )
-{
-   GLenum target = GL_ARRAY_BUFFER_ARB;
-
-   if (exec->vtx.bufferobj->Name) {
-      GLcontext *ctx = exec->ctx;
-
-      exec->vtx.buffer_used += (exec->vtx.buffer_ptr -
-                                exec->vtx.buffer_map) * sizeof(float);
-            
-      ctx->Driver.UnmapBuffer(ctx, target, exec->vtx.bufferobj);
-      exec->vtx.buffer_map = NULL;
-      exec->vtx.buffer_ptr = NULL;
-      exec->vtx.max_vert = 0;
-   }
-}
-
-void vbo_exec_vtx_map( struct vbo_exec_context *exec )
-{
-   GLcontext *ctx = exec->ctx;
-   GLenum target = GL_ARRAY_BUFFER_ARB;
-   GLenum access = GL_READ_WRITE_ARB;
-   GLenum usage = GL_STREAM_DRAW_ARB;
-   
-   if (exec->vtx.bufferobj->Name == 0)
-      return;
-
-   if (exec->vtx.buffer_map != NULL) {
-      assert(0);
-      exec->vtx.buffer_map = NULL;
-   }
-
-   if (VBO_VERT_BUFFER_SIZE > exec->vtx.buffer_used + 1024 &&
-       ctx->Driver.MapBufferRange)
-   {
-      exec->vtx.buffer_map = 
-         (GLfloat *)ctx->Driver.MapBufferRange(ctx, 
-                                               target, 
-                                               exec->vtx.buffer_used,
-                                               (VBO_VERT_BUFFER_SIZE - 
-                                                exec->vtx.buffer_used),
-                                               (GL_MAP_WRITE_BIT |
-                                                GL_MAP_INVALIDATE_RANGE_BIT | 
-                                                GL_MAP_UNSYNCHRONIZED_BIT | 
-                                                MESA_MAP_NOWAIT_BIT),
-                                               exec->vtx.bufferobj);
-   }
-
-   if (exec->vtx.buffer_map) {
-      exec->vtx.buffer_map += exec->vtx.buffer_used / sizeof(float);
-   }
-   else {
-      exec->vtx.buffer_used = 0;
-
-      ctx->Driver.BufferData(ctx, target, 
-                             VBO_VERT_BUFFER_SIZE, 
-                             NULL, usage, exec->vtx.bufferobj);
-
-      exec->vtx.buffer_map = 
-         (GLfloat *)ctx->Driver.MapBuffer(ctx, target, access, 
exec->vtx.bufferobj);
-   }
-
-   if (0) _mesa_printf("map %d..\n", exec->vtx.buffer_used);
-}
-
-
-
 /**
  * Execute the buffer and save copied verts.
  */
-void vbo_exec_vtx_flush( struct vbo_exec_context *exec,
-                         GLboolean unmap )
+void vbo_exec_vtx_flush( struct vbo_exec_context *exec )
 {
    if (0)
       vbo_exec_debug_verts( exec );
@@ -304,9 +236,13 @@ void vbo_exec_vtx_flush( struct vbo_exec_context *exec,
 
       if (exec->vtx.copied.nr != exec->vtx.vert_count) {
         GLcontext *ctx = exec->ctx;
+
+        GLenum target = GL_ARRAY_BUFFER_ARB;
+        GLenum access = GL_READ_WRITE_ARB;
+        GLenum usage = GL_STREAM_DRAW_ARB;
+        GLsizei size = VBO_VERT_BUFFER_SIZE * sizeof(GLfloat);
         
-        /* Before the update_state() as this may raise _NEW_ARRAY
-          * from _mesa_set_varying_vp_inputs().
+        /* Before the unmap (why?)
          */
         vbo_exec_bind_arrays( ctx );
 
@@ -314,12 +250,8 @@ void vbo_exec_vtx_flush( struct vbo_exec_context *exec,
             _mesa_update_state( ctx );
 
 
-         if (exec->vtx.bufferobj->Name) {
-            vbo_exec_vtx_unmap( exec );
-         }
-
-         if (0) _mesa_printf("%s %d %d\n", __FUNCTION__, exec->vtx.prim_count,
-                      exec->vtx.vert_count);
+        ctx->Driver.UnmapBuffer(ctx, target, exec->vtx.bufferobj);
+        exec->vtx.buffer_map = NULL;
 
         vbo_context(ctx)->draw_prims( ctx, 
                                       exec->vtx.inputs, 
@@ -329,31 +261,15 @@ void vbo_exec_vtx_flush( struct vbo_exec_context *exec,
                                       0,
                                       exec->vtx.vert_count - 1);
 
-        /* If using a real VBO, get new storage -- unless asked not to.
-          */
-         if (exec->vtx.bufferobj->Name && !unmap) {
-            vbo_exec_vtx_map( exec );
-          }
+        /* Get new data:
+         */
+        ctx->Driver.BufferData(ctx, target, size, NULL, usage, 
exec->vtx.bufferobj);
+        exec->vtx.buffer_map
+           = ctx->Driver.MapBuffer(ctx, target, access, exec->vtx.bufferobj);
       }
    }
 
-   /* May have to unmap explicitly if we didn't draw:
-    */
-   if (unmap && 
-       exec->vtx.bufferobj->Name &&
-       exec->vtx.buffer_map) {
-      vbo_exec_vtx_unmap( exec );
-   }
-
-
-   if (unmap) 
-      exec->vtx.max_vert = 0;
-   else
-      exec->vtx.max_vert = ((VBO_VERT_BUFFER_SIZE - exec->vtx.buffer_used) / 
-                            (exec->vtx.vertex_size * sizeof(GLfloat)));
-
-
-   exec->vtx.buffer_ptr = exec->vtx.buffer_map;
    exec->vtx.prim_count = 0;
    exec->vtx.vert_count = 0;
+   exec->vtx.vbptr = (GLfloat *)exec->vtx.buffer_map;
 }
diff --git a/src/mesa/vbo/vbo_save.h b/src/mesa/vbo/vbo_save.h
index de8fa19..b7e9baa 100644
--- a/src/mesa/vbo/vbo_save.h
+++ b/src/mesa/vbo/vbo_save.h
@@ -130,7 +130,7 @@ struct vbo_save_context {
    struct vbo_save_vertex_store *vertex_store;
    struct vbo_save_primitive_store *prim_store;
 
-   GLfloat *buffer_ptr;                   /* cursor, points into buffer */
+   GLfloat *vbptr;                /* cursor, points into buffer */
    GLfloat vertex[VBO_ATTRIB_MAX*4];      /* current values */
    GLfloat *attrptr[VBO_ATTRIB_MAX];
    GLuint vert_count;
diff --git a/src/mesa/vbo/vbo_save_api.c b/src/mesa/vbo/vbo_save_api.c
index 9326f7e..f69a33d 100644
--- a/src/mesa/vbo/vbo_save_api.c
+++ b/src/mesa/vbo/vbo_save_api.c
@@ -241,7 +241,7 @@ static void _save_reset_counters( GLcontext *ctx )
    save->buffer = (save->vertex_store->buffer + 
                   save->vertex_store->used);
 
-   assert(save->buffer == save->buffer_ptr);
+   assert(save->buffer == save->vbptr);
 
    if (save->vertex_size)
       save->max_vert = ((VBO_SAVE_BUFFER_SIZE - save->vertex_store->used) / 
@@ -343,7 +343,7 @@ static void _save_compile_vertex_list( GLcontext *ctx )
       /* Allocate and map new store:
        */
       save->vertex_store = alloc_vertex_store( ctx );
-      save->buffer_ptr = map_vertex_store( ctx, save->vertex_store );
+      save->vbptr = map_vertex_store( ctx, save->vertex_store );
    } 
 
    if (save->prim_store->used > VBO_SAVE_PRIM_SIZE - 6) {
@@ -414,9 +414,9 @@ static void _save_wrap_filled_vertex( GLcontext *ctx )
    assert(save->max_vert - save->vert_count > save->copied.nr);
 
    for (i = 0 ; i < save->copied.nr ; i++) {
-      _mesa_memcpy( save->buffer_ptr, data, save->vertex_size * 
sizeof(GLfloat));
+      _mesa_memcpy( save->vbptr, data, save->vertex_size * sizeof(GLfloat));
       data += save->vertex_size;
-      save->buffer_ptr += save->vertex_size;
+      save->vbptr += save->vertex_size;
       save->vert_count++;
    }
 }
@@ -550,7 +550,7 @@ static void _save_upgrade_vertex( GLcontext *ctx,
         }
       }
 
-      save->buffer_ptr = dest;
+      save->vbptr = dest;
       save->vert_count += save->copied.nr;
    }
 }
@@ -622,9 +622,9 @@ do {                                                        
        \
       GLuint i;                                                        \
                                                                \
       for (i = 0; i < save->vertex_size; i++)                  \
-        save->buffer_ptr[i] = save->vertex[i];                 \
+        save->vbptr[i] = save->vertex[i];                      \
                                                                \
-      save->buffer_ptr += save->vertex_size;                           \
+      save->vbptr += save->vertex_size;                                \
                                                                \
       if (++save->vert_count >= save->max_vert)                        \
         _save_wrap_filled_vertex( ctx );                       \
@@ -1035,7 +1035,7 @@ void vbo_save_NewList( GLcontext *ctx, GLuint list, 
GLenum mode )
    if (!save->vertex_store) 
       save->vertex_store = alloc_vertex_store( ctx );
       
-   save->buffer_ptr = map_vertex_store( ctx, save->vertex_store );
+   save->vbptr = map_vertex_store( ctx, save->vertex_store );
    
    _save_reset_vertex( ctx );
    _save_reset_counters( ctx );  

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