+
+void r300_draw_flush_vbuf(struct r300_context *r300)
+{
+ pipe_resource_reference(&r300->vbo, NULL);
+ r300->draw_vbo_size = 0;
+}
+
+/****************************************************************************
+ * End of SW TCL functions *
+ ***************************************************************************/
+
+/* This functions is used to draw a rectangle for the blitter module.
+ *
+ * If we rendered a quad, the pixels on the main diagonal
+ * would be computed and stored twice, which makes the clear/copy codepaths
+ * somewhat inefficient. Instead we use a rectangular point sprite. */
+static void r300_blitter_draw_rectangle(struct blitter_context *blitter,
+ unsigned x1, unsigned y1,
+ unsigned x2, unsigned y2,
+ float depth,
+ enum blitter_attrib_type type,
+ const float attrib[4])
+{
+ struct r300_context *r300 = r300_context(util_blitter_get_pipe(blitter));
+ unsigned last_sprite_coord_enable = r300->sprite_coord_enable;
+ unsigned width = x2 - x1;
+ unsigned height = y2 - y1;
+ unsigned vertex_size =
+ type == UTIL_BLITTER_ATTRIB_COLOR || !r300->draw ? 8 : 4;
+ unsigned dwords = 13 + vertex_size +
+ (type == UTIL_BLITTER_ATTRIB_TEXCOORD ? 7 : 0);
+ const float zeros[4] = {0, 0, 0, 0};
+ CS_LOCALS(r300);
+
+ if (type == UTIL_BLITTER_ATTRIB_TEXCOORD)
+ r300->sprite_coord_enable = 1;
+
+ r300_update_derived_state(r300);
+
+ /* Mark some states we don't care about as non-dirty. */
+ r300->clip_state.dirty = FALSE;
+ r300->viewport_state.dirty = FALSE;
+
+ if (!r300_prepare_for_rendering(r300, PREP_FIRST_DRAW, NULL, dwords, 0, 0))
+ goto done;
+
+ DBG(r300, DBG_DRAW, "r300: draw_rectangle\n");
+
+ BEGIN_CS(dwords);
+ /* Set up GA. */
+ OUT_CS_REG(R300_GA_POINT_SIZE, (height * 6) | ((width * 6) << 16));
+
+ if (type == UTIL_BLITTER_ATTRIB_TEXCOORD) {
+ /* Set up the GA to generate texcoords. */
+ OUT_CS_REG(R300_GB_ENABLE, R300_GB_POINT_STUFF_ENABLE |
+ (R300_GB_TEX_STR << R300_GB_TEX0_SOURCE_SHIFT));
+ OUT_CS_REG_SEQ(R300_GA_POINT_S0, 4);
+ OUT_CS_32F(attrib[0]);
+ OUT_CS_32F(attrib[3]);
+ OUT_CS_32F(attrib[2]);
+ OUT_CS_32F(attrib[1]);
+ }
+
+ /* Set up VAP controls. */
+ OUT_CS_REG(R300_VAP_CLIP_CNTL, R300_CLIP_DISABLE);
+ OUT_CS_REG(R300_VAP_VTE_CNTL, R300_VTX_XY_FMT | R300_VTX_Z_FMT);
+ OUT_CS_REG(R300_VAP_VTX_SIZE, vertex_size);
+ OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX, 2);
+ OUT_CS(1);
+ OUT_CS(0);
+
+ /* Draw. */
+ OUT_CS_PKT3(R300_PACKET3_3D_DRAW_IMMD_2, vertex_size);
+ OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_EMBEDDED | (1 << 16) |
+ R300_VAP_VF_CNTL__PRIM_POINTS);
+
+ OUT_CS_32F(x1 + width * 0.5f);
+ OUT_CS_32F(y1 + height * 0.5f);
+ OUT_CS_32F(depth);
+ OUT_CS_32F(1);
+
+ if (vertex_size == 8) {
+ if (!attrib)
+ attrib = zeros;
+ OUT_CS_TABLE(attrib, 4);
+ }
+ END_CS;
+
+done:
+ /* Restore the state. */
+ r300->clip_state.dirty = TRUE;
+ r300->rs_state.dirty = TRUE;
+ r300->viewport_state.dirty = TRUE;
+
+ r300->sprite_coord_enable = last_sprite_coord_enable;
+}
+
+static void r300_resource_resolve(struct pipe_context* pipe,
+ struct pipe_resource* dest,
+ struct pipe_subresource subdest,
+ struct pipe_resource* src,
+ struct pipe_subresource subsrc)
+{
+ struct r300_context* r300 = r300_context(pipe);
+ struct r300_aa_state *aa = (struct r300_aa_state*)r300->aa_state.state;
+ struct pipe_surface* srcsurf = src->screen->get_tex_surface(src->screen,
+ src, subsrc.face, subsrc.level, 0, 0);
+ float color[] = {0, 0, 0, 0};
+
+ DBG(r300, DBG_DRAW, "r300: Resolving resource...\n");
+
+ /* Enable AA resolve. */
+ aa->dest = r300_surface(
+ dest->screen->get_tex_surface(dest->screen, dest, subdest.face,
+ subdest.level, 0, 0));
+
+ aa->aaresolve_ctl =
+ R300_RB3D_AARESOLVE_CTL_AARESOLVE_MODE_RESOLVE |
+ R300_RB3D_AARESOLVE_CTL_AARESOLVE_ALPHA_AVERAGE;
+ r300->aa_state.size = 12;
+ r300->aa_state.dirty = TRUE;
+
+ /* Resolve the surface. */
+ r300->context.clear_render_target(pipe,
+ srcsurf, color, 0, 0, src->width0, src->height0);
+
+ /* Disable AA resolve. */
+ aa->aaresolve_ctl = 0;
+ r300->aa_state.size = 4;
+ r300->aa_state.dirty = TRUE;
+
+ pipe_surface_reference((struct pipe_surface**)&srcsurf, NULL);
+ pipe_surface_reference((struct pipe_surface**)&aa->dest, NULL);
+}
+
+void r300_init_render_functions(struct r300_context *r300)
+{
+ /* Set draw functions based on presence of HW TCL. */
+ if (r300->screen->caps.has_tcl) {
+ r300->context.draw_vbo = r300_draw_vbo;
+ } else {
+ r300->context.draw_vbo = r300_swtcl_draw_vbo;
+ }
+
+ r300->context.resource_resolve = r300_resource_resolve;
+ r300->blitter->draw_rectangle = r300_blitter_draw_rectangle;
+
+ /* Plug in the two-sided stencil reference value fallback if needed. */
+ if (!r300->screen->caps.is_r500)
+ r300_plug_in_stencil_ref_fallback(r300);
+}