r300g: various other cleanups
[mesa.git] / src / gallium / drivers / r300 / r300_render.c
index 93bf388776c7b70279c86b7cdd08c845116aeb6e..f6bc68c43ad968b0614a6e1322d14f73ab4194ab 100644 (file)
@@ -44,7 +44,7 @@
 /* XXX The DRM rejects VAP_ALT_NUM_VERTICES.. */
 //#define ENABLE_ALT_NUM_VERTS
 
-uint32_t r300_translate_primitive(unsigned prim)
+static uint32_t r300_translate_primitive(unsigned prim)
 {
     switch (prim) {
         case PIPE_PRIM_POINTS:
@@ -138,7 +138,7 @@ static boolean immd_is_good_idea(struct r300_context *r300,
     unsigned vertex_element_count = r300->velems->count;
     unsigned i, vbi;
 
-    if (count > 10) {
+    if (count > 10 || DBG_ON(r300, DBG_NO_IMMD)) {
         return FALSE;
     }
 
@@ -152,7 +152,9 @@ static boolean immd_is_good_idea(struct r300_context *r300,
         if (!checked[vbi]) {
             vbuf = &r300->vertex_buffer[vbi];
 
-            if (r300_buffer_is_referenced(r300, vbuf->buffer)) {
+            if (r300->context.is_resource_referenced(&r300->context,
+                                                    vbuf->buffer,
+                                                    0, 0)) {
                 /* It's a very bad idea to map it... */
                 return FALSE;
             }
@@ -162,10 +164,15 @@ static boolean immd_is_good_idea(struct r300_context *r300,
     return TRUE;
 }
 
-static void r300_emit_draw_arrays_immediate(struct r300_context *r300,
-                                            unsigned mode,
-                                            unsigned start,
-                                            unsigned count)
+/*****************************************************************************
+ * The emission of draw packets for r500. Older GPUs may use these functions *
+ * after resolving fallback issues (e.g. stencil ref two-sided).             *
+ ****************************************************************************/
+
+void r500_emit_draw_arrays_immediate(struct r300_context *r300,
+                                     unsigned mode,
+                                     unsigned start,
+                                     unsigned count)
 {
     struct pipe_vertex_element* velem;
     struct pipe_vertex_buffer* vbuf;
@@ -187,6 +194,7 @@ static void r300_emit_draw_arrays_immediate(struct r300_context *r300,
 
     /* Mapped vertex buffers. */
     uint32_t* map[PIPE_MAX_ATTRIBS] = {0};
+    struct pipe_transfer* transfer[PIPE_MAX_ATTRIBS] = {NULL};
 
     CS_LOCALS(r300);
 
@@ -201,9 +209,10 @@ static void r300_emit_draw_arrays_immediate(struct r300_context *r300,
         /* Map the buffer. */
         if (!map[vbi]) {
             vbuf = &r300->vertex_buffer[vbi];
-            map[vbi] = (uint32_t*)pipe_buffer_map(r300->context.screen,
+            map[vbi] = (uint32_t*)pipe_buffer_map(&r300->context,
                                                   vbuf->buffer,
-                                                  PIPE_BUFFER_USAGE_CPU_READ);
+                                                  PIPE_TRANSFER_READ,
+                                                 &transfer[vbi]);
             map[vbi] += vbuf->buffer_offset / 4;
             stride[vbi] = vbuf->stride / 4;
         }
@@ -246,15 +255,15 @@ static void r300_emit_draw_arrays_immediate(struct r300_context *r300,
 
         if (map[vbi]) {
             vbuf = &r300->vertex_buffer[vbi];
-            pipe_buffer_unmap(r300->context.screen, vbuf->buffer);
+            pipe_buffer_unmap(&r300->context, vbuf->buffer, transfer[vbi]);
             map[vbi] = NULL;
         }
     }
 }
 
-static void r300_emit_draw_arrays(struct r300_context *r300,
-                                  unsigned mode,
-                                  unsigned count)
+void r500_emit_draw_arrays(struct r300_context *r300,
+                           unsigned mode,
+                           unsigned count)
 {
 #if defined(ENABLE_ALT_NUM_VERTS)
     boolean alt_num_verts = count > 65535;
@@ -264,7 +273,11 @@ static void r300_emit_draw_arrays(struct r300_context *r300,
     CS_LOCALS(r300);
 
     if (alt_num_verts) {
-        assert(count < (1 << 24));
+        if (count >= (1 << 24)) {
+            fprintf(stderr, "r300: Got a huge number of vertices: %i, "
+                    "refusing to render.\n", count);
+            return;
+        }
         BEGIN_CS(9);
         OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES, count);
     } else {
@@ -282,14 +295,14 @@ static void r300_emit_draw_arrays(struct r300_context *r300,
     END_CS;
 }
 
-static void r300_emit_draw_elements(struct r300_context *r300,
-                                    struct pipe_buffer* indexBuffer,
-                                    unsigned indexSize,
-                                    unsigned minIndex,
-                                    unsigned maxIndex,
-                                    unsigned mode,
-                                    unsigned start,
-                                    unsigned count)
+void r500_emit_draw_elements(struct r300_context *r300,
+                             struct pipe_resource* indexBuffer,
+                             unsigned indexSize,
+                             unsigned minIndex,
+                             unsigned maxIndex,
+                             unsigned mode,
+                             unsigned start,
+                             unsigned count)
 {
     uint32_t count_dwords;
     uint32_t offset_dwords = indexSize * start / sizeof(uint32_t);
@@ -300,7 +313,11 @@ static void r300_emit_draw_elements(struct r300_context *r300,
 #endif
     CS_LOCALS(r300);
 
-    assert(count < (1 << 24));
+    if (count >= (1 << 24)) {
+        fprintf(stderr, "r300: Got a huge number of vertices: %i, "
+                "refusing to render.\n", count);
+        return;
+    }
 
     maxIndex = MIN2(maxIndex, r300->vertex_buffer_max_index);
 
@@ -347,25 +364,123 @@ static void r300_emit_draw_elements(struct r300_context *r300,
     END_CS;
 }
 
+/*****************************************************************************
+ * The emission of draw packets for r300 which take care of the two-sided    *
+ * stencil ref fallback and call r500's functions.                           *
+ ****************************************************************************/
+
+/* Set drawing for front faces. */
+static void r300_begin_stencil_ref_fallback(struct r300_context *r300)
+{
+    struct r300_rs_state *rs = (struct r300_rs_state*)r300->rs_state.state;
+    CS_LOCALS(r300);
+
+    BEGIN_CS(2);
+    OUT_CS_REG(R300_SU_CULL_MODE, rs->cull_mode | R300_CULL_BACK);
+    END_CS;
+}
+
+/* Set drawing for back faces. */
+static void r300_switch_stencil_ref_side(struct r300_context *r300)
+{
+    struct r300_rs_state *rs = (struct r300_rs_state*)r300->rs_state.state;
+    struct r300_dsa_state *dsa = (struct r300_dsa_state*)r300->dsa_state.state;
+    CS_LOCALS(r300);
+
+    BEGIN_CS(4);
+    OUT_CS_REG(R300_SU_CULL_MODE, rs->cull_mode | R300_CULL_FRONT);
+    OUT_CS_REG(R300_ZB_STENCILREFMASK,
+               dsa->stencil_ref_bf | r300->stencil_ref.ref_value[1]);
+    END_CS;
+}
+
+/* Restore the original state. */
+static void r300_end_stencil_ref_fallback(struct r300_context *r300)
+{
+    struct r300_rs_state *rs = (struct r300_rs_state*)r300->rs_state.state;
+    struct r300_dsa_state *dsa = (struct r300_dsa_state*)r300->dsa_state.state;
+    CS_LOCALS(r300);
+
+    BEGIN_CS(4);
+    OUT_CS_REG(R300_SU_CULL_MODE, rs->cull_mode);
+    OUT_CS_REG(R300_ZB_STENCILREFMASK,
+               dsa->stencil_ref_mask | r300->stencil_ref.ref_value[0]);
+    END_CS;
+}
+
+void r300_emit_draw_arrays_immediate(struct r300_context *r300,
+                                     unsigned mode,
+                                     unsigned start,
+                                     unsigned count)
+{
+    if (!r300->stencil_ref_bf_fallback) {
+        r500_emit_draw_arrays_immediate(r300, mode, start, count);
+    } else {
+        r300_begin_stencil_ref_fallback(r300);
+        r500_emit_draw_arrays_immediate(r300, mode, start, count);
+        r300_switch_stencil_ref_side(r300);
+        r500_emit_draw_arrays_immediate(r300, mode, start, count);
+        r300_end_stencil_ref_fallback(r300);
+    }
+}
+
+void r300_emit_draw_arrays(struct r300_context *r300,
+                           unsigned mode,
+                           unsigned count)
+{
+    if (!r300->stencil_ref_bf_fallback) {
+        r500_emit_draw_arrays(r300, mode, count);
+    } else {
+        r300_begin_stencil_ref_fallback(r300);
+        r500_emit_draw_arrays(r300, mode, count);
+        r300_switch_stencil_ref_side(r300);
+        r500_emit_draw_arrays(r300, mode, count);
+        r300_end_stencil_ref_fallback(r300);
+    }
+}
+
+void r300_emit_draw_elements(struct r300_context *r300,
+                             struct pipe_resource* indexBuffer,
+                             unsigned indexSize,
+                             unsigned minIndex,
+                             unsigned maxIndex,
+                             unsigned mode,
+                             unsigned start,
+                             unsigned count)
+{
+    if (!r300->stencil_ref_bf_fallback) {
+        r500_emit_draw_elements(r300, indexBuffer, indexSize, minIndex,
+                                maxIndex, mode, start, count);
+    } else {
+        r300_begin_stencil_ref_fallback(r300);
+        r500_emit_draw_elements(r300, indexBuffer, indexSize, minIndex,
+                                maxIndex, mode, start, count);
+        r300_switch_stencil_ref_side(r300);
+        r500_emit_draw_elements(r300, indexBuffer, indexSize, minIndex,
+                                maxIndex, mode, start, count);
+        r300_end_stencil_ref_fallback(r300);
+    }
+}
+
 static void r300_shorten_ubyte_elts(struct r300_context* r300,
-                                    struct pipe_buffer** elts,
+                                    struct pipe_resource** elts,
                                     unsigned start,
                                     unsigned count)
 {
+    struct pipe_context* context = &r300->context;
     struct pipe_screen* screen = r300->context.screen;
-    struct pipe_buffer* new_elts;
+    struct pipe_resource* new_elts;
     unsigned char *in_map;
     unsigned short *out_map;
+    struct pipe_transfer *src_transfer, *dst_transfer;
     unsigned i;
 
-    new_elts = screen->buffer_create(screen, 32,
-                                     PIPE_BUFFER_USAGE_INDEX |
-                                     PIPE_BUFFER_USAGE_CPU_WRITE |
-                                     PIPE_BUFFER_USAGE_GPU_READ,
-                                     2 * count);
+    new_elts = pipe_buffer_create(screen,
+                                 PIPE_BIND_INDEX_BUFFER,
+                                 2 * count);
 
-    in_map = pipe_buffer_map(screen, *elts, PIPE_BUFFER_USAGE_CPU_READ);
-    out_map = pipe_buffer_map(screen, new_elts, PIPE_BUFFER_USAGE_CPU_WRITE);
+    in_map = pipe_buffer_map(context, *elts, PIPE_TRANSFER_READ, &src_transfer);
+    out_map = pipe_buffer_map(context, new_elts, PIPE_TRANSFER_WRITE, &dst_transfer);
 
     in_map += start;
 
@@ -375,41 +490,43 @@ static void r300_shorten_ubyte_elts(struct r300_context* r300,
         out_map++;
     }
 
-    pipe_buffer_unmap(screen, *elts);
-    pipe_buffer_unmap(screen, new_elts);
+    pipe_buffer_unmap(context, *elts, src_transfer);
+    pipe_buffer_unmap(context, new_elts, dst_transfer);
 
     *elts = new_elts;
 }
 
 static void r300_align_ushort_elts(struct r300_context *r300,
-                                   struct pipe_buffer **elts,
+                                   struct pipe_resource **elts,
                                    unsigned start, unsigned count)
 {
-    struct pipe_screen* screen = r300->context.screen;
-    struct pipe_buffer* new_elts;
+    struct pipe_context* context = &r300->context;
+    struct pipe_transfer *in_transfer = NULL;
+    struct pipe_transfer *out_transfer = NULL;
+    struct pipe_resource* new_elts;
     unsigned short *in_map;
     unsigned short *out_map;
 
-    new_elts = screen->buffer_create(screen, 32,
-                                     PIPE_BUFFER_USAGE_INDEX |
-                                     PIPE_BUFFER_USAGE_CPU_WRITE |
-                                     PIPE_BUFFER_USAGE_GPU_READ,
-                                     2 * count);
+    new_elts = pipe_buffer_create(context->screen,
+                                 PIPE_BIND_INDEX_BUFFER,
+                                 2 * count);
 
-    in_map = pipe_buffer_map(screen, *elts, PIPE_BUFFER_USAGE_CPU_READ);
-    out_map = pipe_buffer_map(screen, new_elts, PIPE_BUFFER_USAGE_CPU_WRITE);
+    in_map = pipe_buffer_map(context, *elts,
+                            PIPE_TRANSFER_READ, &in_transfer);
+    out_map = pipe_buffer_map(context, new_elts,
+                             PIPE_TRANSFER_WRITE, &out_transfer);
 
     memcpy(out_map, in_map+start, 2 * count);
 
-    pipe_buffer_unmap(screen, *elts);
-    pipe_buffer_unmap(screen, new_elts);
+    pipe_buffer_unmap(context, *elts, in_transfer);
+    pipe_buffer_unmap(context, new_elts, out_transfer);
 
     *elts = new_elts;
 }
 
 /* This is the fast-path drawing & emission for HW TCL. */
 void r300_draw_range_elements(struct pipe_context* pipe,
-                              struct pipe_buffer* indexBuffer,
+                              struct pipe_resource* indexBuffer,
                               unsigned indexSize,
                               unsigned minIndex,
                               unsigned maxIndex,
@@ -418,15 +535,19 @@ void r300_draw_range_elements(struct pipe_context* pipe,
                               unsigned count)
 {
     struct r300_context* r300 = r300_context(pipe);
-    struct pipe_buffer* orgIndexBuffer = indexBuffer;
+    struct pipe_resource* orgIndexBuffer = indexBuffer;
 #if defined(ENABLE_ALT_NUM_VERTS)
-    boolean alt_num_verts = r300_screen(pipe->screen)->caps->is_r500 &&
+    boolean alt_num_verts = r300->screen->caps.is_r500 &&
                             count > 65536;
 #else
     boolean alt_num_verts = FALSE;
 #endif
     unsigned short_count;
 
+    if (r300->skip_rendering) {
+        return;
+    }
+
     if (!u_trim_pipe_prim(mode, &count)) {
         return;
     }
@@ -453,13 +574,13 @@ void r300_draw_range_elements(struct pipe_context* pipe,
     u_upload_flush(r300->upload_vb);
     u_upload_flush(r300->upload_ib);
     if (alt_num_verts || count <= 65535) {
-        r300_emit_draw_elements(r300, indexBuffer, indexSize, minIndex,
-                                maxIndex, mode, start, count);
+        r300->emit_draw_elements(r300, indexBuffer, indexSize, minIndex,
+                                 maxIndex, mode, start, count);
     } else {
         do {
             short_count = MIN2(count, 65534);
-            r300_emit_draw_elements(r300, indexBuffer, indexSize, minIndex,
-                                    maxIndex, mode, start, short_count);
+            r300->emit_draw_elements(r300, indexBuffer, indexSize, minIndex,
+                                      maxIndex, mode, start, short_count);
 
             start += short_count;
             count -= short_count;
@@ -474,13 +595,13 @@ void r300_draw_range_elements(struct pipe_context* pipe,
     }
 
     if (indexBuffer != orgIndexBuffer) {
-        pipe_buffer_reference( &indexBuffer, NULL );
+        pipe_resource_reference( &indexBuffer, NULL );
     }
 }
 
 /* Simple helpers for context setup. Should probably be moved to util. */
 void r300_draw_elements(struct pipe_context* pipe,
-                        struct pipe_buffer* indexBuffer,
+                        struct pipe_resource* indexBuffer,
                         unsigned indexSize, unsigned mode,
                         unsigned start, unsigned count)
 {
@@ -496,13 +617,17 @@ void r300_draw_arrays(struct pipe_context* pipe, unsigned mode,
 {
     struct r300_context* r300 = r300_context(pipe);
 #if defined(ENABLE_ALT_NUM_VERTS)
-    boolean alt_num_verts = r300_screen(pipe->screen)->caps->is_r500 &&
+    boolean alt_num_verts = r300->screen->caps.is_r500 &&
                             count > 65536;
 #else
     boolean alt_num_verts = FALSE;
 #endif
     unsigned short_count;
 
+    if (r300->skip_rendering) {
+        return;
+    }
+
     if (!u_trim_pipe_prim(mode, &count)) {
         return;
     }
@@ -510,7 +635,7 @@ void r300_draw_arrays(struct pipe_context* pipe, unsigned mode,
     r300_update_derived_state(r300);
 
     if (immd_is_good_idea(r300, count)) {
-        r300_emit_draw_arrays_immediate(r300, mode, start, count);
+        r300->emit_draw_arrays_immediate(r300, mode, start, count);
     } else {
         /* Make sure there are at least 128 spare dwords in the command buffer.
          * (most of it being consumed by emit_aos) */
@@ -520,12 +645,12 @@ void r300_draw_arrays(struct pipe_context* pipe, unsigned mode,
 
         if (alt_num_verts || count <= 65535) {
             r300_emit_aos(r300, start);
-            r300_emit_draw_arrays(r300, mode, count);
+            r300->emit_draw_arrays(r300, mode, count);
         } else {
             do {
                 short_count = MIN2(count, 65535);
                 r300_emit_aos(r300, start);
-                r300_emit_draw_arrays(r300, mode, short_count);
+                r300->emit_draw_arrays(r300, mode, short_count);
 
                 start += short_count;
                 count -= short_count;
@@ -554,39 +679,39 @@ void r300_swtcl_draw_arrays(struct pipe_context* pipe,
                                unsigned count)
 {
     struct r300_context* r300 = r300_context(pipe);
+    struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS];
     int i;
 
+    if (r300->skip_rendering) {
+        return;
+    }
+
     if (!u_trim_pipe_prim(mode, &count)) {
         return;
     }
 
     for (i = 0; i < r300->vertex_buffer_count; i++) {
-        void* buf = pipe_buffer_map(pipe->screen,
+        void* buf = pipe_buffer_map(pipe,
                                     r300->vertex_buffer[i].buffer,
-                                    PIPE_BUFFER_USAGE_CPU_READ);
+                                    PIPE_TRANSFER_READ,
+                                   &vb_transfer[i]);
         draw_set_mapped_vertex_buffer(r300->draw, i, buf);
     }
 
     draw_set_mapped_element_buffer(r300->draw, 0, NULL);
 
-    draw_set_mapped_constant_buffer(r300->draw,
-                                   PIPE_SHADER_VERTEX,
-                                    0,
-                                   r300->shader_constants[PIPE_SHADER_VERTEX].constants,
-                                   r300->shader_constants[PIPE_SHADER_VERTEX].count *
-                (sizeof(float) * 4));
-
     draw_arrays(r300->draw, mode, start, count);
 
     for (i = 0; i < r300->vertex_buffer_count; i++) {
-        pipe_buffer_unmap(pipe->screen, r300->vertex_buffer[i].buffer);
+        pipe_buffer_unmap(pipe, r300->vertex_buffer[i].buffer,
+                         vb_transfer[i]);
         draw_set_mapped_vertex_buffer(r300->draw, i, NULL);
     }
 }
 
 /* SW TCL elements, using Draw. */
 void r300_swtcl_draw_range_elements(struct pipe_context* pipe,
-                                       struct pipe_buffer* indexBuffer,
+                                       struct pipe_resource* indexBuffer,
                                        unsigned indexSize,
                                        unsigned minIndex,
                                        unsigned maxIndex,
@@ -595,40 +720,42 @@ void r300_swtcl_draw_range_elements(struct pipe_context* pipe,
                                        unsigned count)
 {
     struct r300_context* r300 = r300_context(pipe);
+    struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS];
+    struct pipe_transfer *ib_transfer;
     int i;
     void* indices;
 
+    if (r300->skip_rendering) {
+        return;
+    }
+
     if (!u_trim_pipe_prim(mode, &count)) {
         return;
     }
 
     for (i = 0; i < r300->vertex_buffer_count; i++) {
-        void* buf = pipe_buffer_map(pipe->screen,
+        void* buf = pipe_buffer_map(pipe,
                                     r300->vertex_buffer[i].buffer,
-                                    PIPE_BUFFER_USAGE_CPU_READ);
+                                    PIPE_TRANSFER_READ,
+                                   &vb_transfer[i]);
         draw_set_mapped_vertex_buffer(r300->draw, i, buf);
     }
 
-    indices = pipe_buffer_map(pipe->screen, indexBuffer,
-                              PIPE_BUFFER_USAGE_CPU_READ);
+    indices = pipe_buffer_map(pipe, indexBuffer,
+                              PIPE_TRANSFER_READ, &ib_transfer);
     draw_set_mapped_element_buffer_range(r300->draw, indexSize,
                                          minIndex, maxIndex, indices);
 
-    draw_set_mapped_constant_buffer(r300->draw,
-                                   PIPE_SHADER_VERTEX,
-                                    0,
-            r300->shader_constants[PIPE_SHADER_VERTEX].constants,
-            r300->shader_constants[PIPE_SHADER_VERTEX].count *
-                (sizeof(float) * 4));
-
     draw_arrays(r300->draw, mode, start, count);
 
     for (i = 0; i < r300->vertex_buffer_count; i++) {
-        pipe_buffer_unmap(pipe->screen, r300->vertex_buffer[i].buffer);
+        pipe_buffer_unmap(pipe, r300->vertex_buffer[i].buffer,
+                         vb_transfer[i]);
         draw_set_mapped_vertex_buffer(r300->draw, i, NULL);
     }
 
-    pipe_buffer_unmap(pipe->screen, indexBuffer);
+    pipe_buffer_unmap(pipe, indexBuffer,
+                     ib_transfer);
     draw_set_mapped_element_buffer_range(r300->draw, 0, start,
                                          start + count - 1, NULL);
 }
@@ -647,11 +774,13 @@ struct r300_render {
     unsigned hwprim;
 
     /* VBO */
-    struct pipe_buffer* vbo;
+    struct pipe_resource* vbo;
     size_t vbo_size;
     size_t vbo_offset;
     size_t vbo_max_used;
     void * vbo_ptr;
+
+   struct pipe_transfer *vbo_transfer;
 };
 
 static INLINE struct r300_render*
@@ -682,10 +811,9 @@ static boolean r300_render_allocate_vertices(struct vbuf_render* render,
 
     if (size + r300render->vbo_offset > r300render->vbo_size)
     {
-        pipe_buffer_reference(&r300->vbo, NULL);
+        pipe_resource_reference(&r300->vbo, NULL);
         r300render->vbo = pipe_buffer_create(screen,
-                                             64,
-                                             PIPE_BUFFER_USAGE_VERTEX,
+                                             PIPE_BIND_VERTEX_BUFFER,
                                              R300_MAX_DRAW_VBO_SIZE);
         r300render->vbo_offset = 0;
         r300render->vbo_size = R300_MAX_DRAW_VBO_SIZE;
@@ -701,10 +829,11 @@ static boolean r300_render_allocate_vertices(struct vbuf_render* render,
 static void* r300_render_map_vertices(struct vbuf_render* render)
 {
     struct r300_render* r300render = r300_render(render);
-    struct pipe_screen* screen = r300render->r300->context.screen;
 
-    r300render->vbo_ptr = pipe_buffer_map(screen, r300render->vbo,
-                                          PIPE_BUFFER_USAGE_CPU_WRITE);
+    r300render->vbo_ptr = pipe_buffer_map(&r300render->r300->context,
+                                         r300render->vbo,
+                                          PIPE_TRANSFER_WRITE,
+                                         &r300render->vbo_transfer);
 
     return ((uint8_t*)r300render->vbo_ptr + r300render->vbo_offset);
 }
@@ -714,7 +843,7 @@ static void r300_render_unmap_vertices(struct vbuf_render* render,
                                              ushort max)
 {
     struct r300_render* r300render = r300_render(render);
-    struct pipe_screen* screen = r300render->r300->context.screen;
+    struct pipe_context* context = &r300render->r300->context;
     CS_LOCALS(r300render->r300);
     BEGIN_CS(2);
     OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, max);
@@ -722,7 +851,7 @@ static void r300_render_unmap_vertices(struct vbuf_render* render,
 
     r300render->vbo_max_used = MAX2(r300render->vbo_max_used,
                                     r300render->vertex_size * (max + 1));
-    pipe_buffer_unmap(screen, r300render->vbo);
+    pipe_buffer_unmap(context, r300render->vbo, r300render->vbo_transfer);
 }
 
 static void r300_render_release_vertices(struct vbuf_render* render)
@@ -744,9 +873,9 @@ static boolean r300_render_set_primitive(struct vbuf_render* render,
     return TRUE;
 }
 
-static void r300_render_draw_arrays(struct vbuf_render* render,
-                                          unsigned start,
-                                          unsigned count)
+static void r500_render_draw_arrays(struct vbuf_render* render,
+                                    unsigned start,
+                                    unsigned count)
 {
     struct r300_render* r300render = r300_render(render);
     struct r300_context* r300 = r300render->r300;
@@ -766,9 +895,9 @@ static void r300_render_draw_arrays(struct vbuf_render* render,
     END_CS;
 }
 
-static void r300_render_draw(struct vbuf_render* render,
-                                   const ushort* indices,
-                                   uint count)
+static void r500_render_draw(struct vbuf_render* render,
+                             const ushort* indices,
+                             uint count)
 {
     struct r300_render* r300render = r300_render(render);
     struct r300_context* r300 = r300render->r300;
@@ -794,6 +923,40 @@ static void r300_render_draw(struct vbuf_render* render,
     END_CS;
 }
 
+static void r300_render_draw_arrays(struct vbuf_render* render,
+                                    unsigned start,
+                                    unsigned count)
+{
+    struct r300_context* r300 = r300_render(render)->r300;
+
+    if (!r300->stencil_ref_bf_fallback) {
+        r500_render_draw_arrays(render, start, count);
+    } else {
+        r300_begin_stencil_ref_fallback(r300);
+        r500_render_draw_arrays(render, start, count);
+        r300_switch_stencil_ref_side(r300);
+        r500_render_draw_arrays(render, start, count);
+        r300_end_stencil_ref_fallback(r300);
+    }
+}
+
+static void r300_render_draw(struct vbuf_render* render,
+                             const ushort* indices,
+                             uint count)
+{
+    struct r300_context* r300 = r300_render(render)->r300;
+
+    if (!r300->stencil_ref_bf_fallback) {
+        r500_render_draw(render, indices, count);
+    } else {
+        r300_begin_stencil_ref_fallback(r300);
+        r500_render_draw(render, indices, count);
+        r300_switch_stencil_ref_side(r300);
+        r500_render_draw(render, indices, count);
+        r300_end_stencil_ref_fallback(r300);
+    }
+}
+
 static void r300_render_destroy(struct vbuf_render* render)
 {
     FREE(render);
@@ -814,8 +977,13 @@ static struct vbuf_render* r300_render_create(struct r300_context* r300)
     r300render->base.map_vertices = r300_render_map_vertices;
     r300render->base.unmap_vertices = r300_render_unmap_vertices;
     r300render->base.set_primitive = r300_render_set_primitive;
-    r300render->base.draw = r300_render_draw;
-    r300render->base.draw_arrays = r300_render_draw_arrays;
+    if (r300->screen->caps.is_r500) {
+        r300render->base.draw = r500_render_draw;
+        r300render->base.draw_arrays = r500_render_draw_arrays;
+    } else {
+        r300render->base.draw = r300_render_draw;
+        r300render->base.draw_arrays = r300_render_draw_arrays;
+    }
     r300render->base.release_vertices = r300_render_release_vertices;
     r300render->base.destroy = r300_render_destroy;