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diff --git a/src/gallium/drivers/failover/fo_state.c b/src/gallium/drivers/failover/fo_state.c
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+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+/* Authors: Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+#include "pipe/p_inlines.h"
+
+#include "fo_context.h"
+
+
+/* This looks like a lot of work at the moment - we're keeping a
+ * duplicate copy of the state up-to-date.
+ *
+ * This can change in two ways:
+ * - With constant state objects we would only need to save a pointer,
+ * not the whole object.
+ * - By adding a callback in the state tracker to re-emit state. The
+ * state tracker knows the current state already and can re-emit it
+ * without additional complexity.
+ *
+ * This works as a proof-of-concept, but a final version will have
+ * lower overheads.
+ */
+
+
+
+static void *
+failover_create_blend_state( struct pipe_context *pipe,
+ const struct pipe_blend_state *blend )
+{
+ struct fo_state *state = malloc(sizeof(struct fo_state));
+ struct failover_context *failover = failover_context(pipe);
+
+ state->sw_state = failover->sw->create_blend_state(failover->sw, blend);
+ state->hw_state = failover->hw->create_blend_state(failover->hw, blend);
+
+ return state;
+}
+
+static void
+failover_bind_blend_state( struct pipe_context *pipe,
+ void *blend )
+{
+ struct failover_context *failover = failover_context(pipe);
+ struct fo_state *state = (struct fo_state *)blend;
+ failover->blend = state;
+ failover->dirty |= FO_NEW_BLEND;
+ failover->sw->bind_blend_state( failover->sw, state->sw_state );
+ failover->hw->bind_blend_state( failover->hw, state->hw_state );
+}
+
+static void
+failover_delete_blend_state( struct pipe_context *pipe,
+ void *blend )
+{
+ struct fo_state *state = (struct fo_state*)blend;
+ struct failover_context *failover = failover_context(pipe);
+
+ failover->sw->delete_blend_state(failover->sw, state->sw_state);
+ failover->hw->delete_blend_state(failover->hw, state->hw_state);
+ state->sw_state = 0;
+ state->hw_state = 0;
+ free(state);
+}
+
+static void
+failover_set_blend_color( struct pipe_context *pipe,
+ const struct pipe_blend_color *blend_color )
+{
+ struct failover_context *failover = failover_context(pipe);
+
+ failover->blend_color = *blend_color;
+ failover->dirty |= FO_NEW_BLEND_COLOR;
+ failover->sw->set_blend_color( failover->sw, blend_color );
+ failover->hw->set_blend_color( failover->hw, blend_color );
+}
+
+static void
+failover_set_clip_state( struct pipe_context *pipe,
+ const struct pipe_clip_state *clip )
+{
+ struct failover_context *failover = failover_context(pipe);
+
+ failover->clip = *clip;
+ failover->dirty |= FO_NEW_CLIP;
+ failover->sw->set_clip_state( failover->sw, clip );
+ failover->hw->set_clip_state( failover->hw, clip );
+}
+
+
+static void *
+failover_create_depth_stencil_state(struct pipe_context *pipe,
+ const struct pipe_depth_stencil_alpha_state *templ)
+{
+ struct fo_state *state = malloc(sizeof(struct fo_state));
+ struct failover_context *failover = failover_context(pipe);
+
+ state->sw_state = failover->sw->create_depth_stencil_alpha_state(failover->sw, templ);
+ state->hw_state = failover->hw->create_depth_stencil_alpha_state(failover->hw, templ);
+
+ return state;
+}
+
+static void
+failover_bind_depth_stencil_state(struct pipe_context *pipe,
+ void *depth_stencil)
+{
+ struct failover_context *failover = failover_context(pipe);
+ struct fo_state *state = (struct fo_state *)depth_stencil;
+ failover->depth_stencil = state;
+ failover->dirty |= FO_NEW_DEPTH_STENCIL;
+ failover->sw->bind_depth_stencil_alpha_state(failover->sw, state->sw_state);
+ failover->hw->bind_depth_stencil_alpha_state(failover->hw, state->hw_state);
+}
+
+static void
+failover_delete_depth_stencil_state(struct pipe_context *pipe,
+ void *ds)
+{
+ struct fo_state *state = (struct fo_state*)ds;
+ struct failover_context *failover = failover_context(pipe);
+
+ failover->sw->delete_depth_stencil_alpha_state(failover->sw, state->sw_state);
+ failover->hw->delete_depth_stencil_alpha_state(failover->hw, state->hw_state);
+ state->sw_state = 0;
+ state->hw_state = 0;
+ free(state);
+}
+
+static void
+failover_set_framebuffer_state(struct pipe_context *pipe,
+ const struct pipe_framebuffer_state *framebuffer)
+{
+ struct failover_context *failover = failover_context(pipe);
+
+ failover->framebuffer = *framebuffer;
+ failover->dirty |= FO_NEW_FRAMEBUFFER;
+ failover->sw->set_framebuffer_state( failover->sw, framebuffer );
+ failover->hw->set_framebuffer_state( failover->hw, framebuffer );
+}
+
+
+static void *
+failover_create_fs_state(struct pipe_context *pipe,
+ const struct pipe_shader_state *templ)
+{
+ struct fo_state *state = malloc(sizeof(struct fo_state));
+ struct failover_context *failover = failover_context(pipe);
+
+ state->sw_state = failover->sw->create_fs_state(failover->sw, templ);
+ state->hw_state = failover->hw->create_fs_state(failover->hw, templ);
+
+ return state;
+}
+
+static void
+failover_bind_fs_state(struct pipe_context *pipe, void *fs)
+{
+ struct failover_context *failover = failover_context(pipe);
+ struct fo_state *state = (struct fo_state*)fs;
+ failover->fragment_shader = state;
+ failover->dirty |= FO_NEW_FRAGMENT_SHADER;
+ failover->sw->bind_fs_state(failover->sw, state->sw_state);
+ failover->hw->bind_fs_state(failover->hw, state->hw_state);
+}
+
+static void
+failover_delete_fs_state(struct pipe_context *pipe,
+ void *fs)
+{
+ struct fo_state *state = (struct fo_state*)fs;
+ struct failover_context *failover = failover_context(pipe);
+
+ failover->sw->delete_fs_state(failover->sw, state->sw_state);
+ failover->hw->delete_fs_state(failover->hw, state->hw_state);
+ state->sw_state = 0;
+ state->hw_state = 0;
+ free(state);
+}
+
+static void *
+failover_create_vs_state(struct pipe_context *pipe,
+ const struct pipe_shader_state *templ)
+{
+ struct fo_state *state = malloc(sizeof(struct fo_state));
+ struct failover_context *failover = failover_context(pipe);
+
+ state->sw_state = failover->sw->create_vs_state(failover->sw, templ);
+ state->hw_state = failover->hw->create_vs_state(failover->hw, templ);
+
+ return state;
+}
+
+static void
+failover_bind_vs_state(struct pipe_context *pipe,
+ void *vs)
+{
+ struct failover_context *failover = failover_context(pipe);
+
+ struct fo_state *state = (struct fo_state*)vs;
+ failover->vertex_shader = state;
+ failover->dirty |= FO_NEW_VERTEX_SHADER;
+ failover->sw->bind_vs_state(failover->sw, state->sw_state);
+ failover->hw->bind_vs_state(failover->hw, state->hw_state);
+}
+
+static void
+failover_delete_vs_state(struct pipe_context *pipe,
+ void *vs)
+{
+ struct fo_state *state = (struct fo_state*)vs;
+ struct failover_context *failover = failover_context(pipe);
+
+ failover->sw->delete_vs_state(failover->sw, state->sw_state);
+ failover->hw->delete_vs_state(failover->hw, state->hw_state);
+ state->sw_state = 0;
+ state->hw_state = 0;
+ free(state);
+}
+
+static void
+failover_set_polygon_stipple( struct pipe_context *pipe,
+ const struct pipe_poly_stipple *stipple )
+{
+ struct failover_context *failover = failover_context(pipe);
+
+ failover->poly_stipple = *stipple;
+ failover->dirty |= FO_NEW_STIPPLE;
+ failover->sw->set_polygon_stipple( failover->sw, stipple );
+ failover->hw->set_polygon_stipple( failover->hw, stipple );
+}
+
+
+static void *
+failover_create_rasterizer_state(struct pipe_context *pipe,
+ const struct pipe_rasterizer_state *templ)
+{
+ struct fo_state *state = malloc(sizeof(struct fo_state));
+ struct failover_context *failover = failover_context(pipe);
+
+ state->sw_state = failover->sw->create_rasterizer_state(failover->sw, templ);
+ state->hw_state = failover->hw->create_rasterizer_state(failover->hw, templ);
+
+ return state;
+}
+
+static void
+failover_bind_rasterizer_state(struct pipe_context *pipe,
+ void *raster)
+{
+ struct failover_context *failover = failover_context(pipe);
+
+ struct fo_state *state = (struct fo_state*)raster;
+ failover->rasterizer = state;
+ failover->dirty |= FO_NEW_RASTERIZER;
+ failover->sw->bind_rasterizer_state(failover->sw, state->sw_state);
+ failover->hw->bind_rasterizer_state(failover->hw, state->hw_state);
+}
+
+static void
+failover_delete_rasterizer_state(struct pipe_context *pipe,
+ void *raster)
+{
+ struct fo_state *state = (struct fo_state*)raster;
+ struct failover_context *failover = failover_context(pipe);
+
+ failover->sw->delete_rasterizer_state(failover->sw, state->sw_state);
+ failover->hw->delete_rasterizer_state(failover->hw, state->hw_state);
+ state->sw_state = 0;
+ state->hw_state = 0;
+ free(state);
+}
+
+
+static void
+failover_set_scissor_state( struct pipe_context *pipe,
+ const struct pipe_scissor_state *scissor )
+{
+ struct failover_context *failover = failover_context(pipe);
+
+ failover->scissor = *scissor;
+ failover->dirty |= FO_NEW_SCISSOR;
+ failover->sw->set_scissor_state( failover->sw, scissor );
+ failover->hw->set_scissor_state( failover->hw, scissor );
+}
+
+
+static void *
+failover_create_sampler_state(struct pipe_context *pipe,
+ const struct pipe_sampler_state *templ)
+{
+ struct fo_state *state = malloc(sizeof(struct fo_state));
+ struct failover_context *failover = failover_context(pipe);
+
+ state->sw_state = failover->sw->create_sampler_state(failover->sw, templ);
+ state->hw_state = failover->hw->create_sampler_state(failover->hw, templ);
+
+ return state;
+}
+
+static void
+failover_bind_sampler_states(struct pipe_context *pipe,
+ unsigned num, void **sampler)
+{
+ struct failover_context *failover = failover_context(pipe);
+ struct fo_state *state = (struct fo_state*)sampler;
+ uint i;
+ assert(num <= PIPE_MAX_SAMPLERS);
+ /* Check for no-op */
+ if (num == failover->num_samplers &&
+ !memcmp(failover->sampler, sampler, num * sizeof(void *)))
+ return;
+ for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
+ failover->sw_sampler_state[i] = i < num ? state[i].sw_state : NULL;
+ failover->hw_sampler_state[i] = i < num ? state[i].hw_state : NULL;
+ }
+ failover->dirty |= FO_NEW_SAMPLER;
+ failover->num_samplers = num;
+ failover->sw->bind_sampler_states(failover->sw, num,
+ failover->sw_sampler_state);
+ failover->hw->bind_sampler_states(failover->hw, num,
+ failover->hw_sampler_state);
+}
+
+static void
+failover_delete_sampler_state(struct pipe_context *pipe, void *sampler)
+{
+ struct fo_state *state = (struct fo_state*)sampler;
+ struct failover_context *failover = failover_context(pipe);
+
+ failover->sw->delete_sampler_state(failover->sw, state->sw_state);
+ failover->hw->delete_sampler_state(failover->hw, state->hw_state);
+ state->sw_state = 0;
+ state->hw_state = 0;
+ free(state);
+}
+
+
+static void
+failover_set_sampler_textures(struct pipe_context *pipe,
+ unsigned num,
+ struct pipe_texture **texture)
+{
+ struct failover_context *failover = failover_context(pipe);
+ uint i;
+
+ assert(num <= PIPE_MAX_SAMPLERS);
+
+ /* Check for no-op */
+ if (num == failover->num_textures &&
+ !memcmp(failover->texture, texture, num * sizeof(struct pipe_texture *)))
+ return;
+ for (i = 0; i < num; i++)
+ pipe_texture_reference((struct pipe_texture **) &failover->texture[i],
+ texture[i]);
+ for (i = num; i < failover->num_textures; i++)
+ pipe_texture_reference((struct pipe_texture **) &failover->texture[i],
+ NULL);
+ failover->dirty |= FO_NEW_TEXTURE;
+ failover->num_textures = num;
+ failover->sw->set_sampler_textures( failover->sw, num, texture );
+ failover->hw->set_sampler_textures( failover->hw, num, texture );
+}
+
+
+static void
+failover_set_viewport_state( struct pipe_context *pipe,
+ const struct pipe_viewport_state *viewport )
+{
+ struct failover_context *failover = failover_context(pipe);
+
+ failover->viewport = *viewport;
+ failover->dirty |= FO_NEW_VIEWPORT;
+ failover->sw->set_viewport_state( failover->sw, viewport );
+ failover->hw->set_viewport_state( failover->hw, viewport );
+}
+
+
+static void
+failover_set_vertex_buffers(struct pipe_context *pipe,
+ unsigned count,
+ const struct pipe_vertex_buffer *vertex_buffers)
+{
+ struct failover_context *failover = failover_context(pipe);
+
+ memcpy(failover->vertex_buffers, vertex_buffers,
+ count * sizeof(vertex_buffers[0]));
+ failover->dirty |= FO_NEW_VERTEX_BUFFER;
+ failover->num_vertex_buffers = count;
+ failover->sw->set_vertex_buffers( failover->sw, count, vertex_buffers );
+ failover->hw->set_vertex_buffers( failover->hw, count, vertex_buffers );
+}
+
+
+static void
+failover_set_vertex_elements(struct pipe_context *pipe,
+ unsigned count,
+ const struct pipe_vertex_element *vertex_elements)
+{
+ struct failover_context *failover = failover_context(pipe);
+
+ memcpy(failover->vertex_elements, vertex_elements,
+ count * sizeof(vertex_elements[0]));
+
+ failover->dirty |= FO_NEW_VERTEX_ELEMENT;
+ failover->num_vertex_elements = count;
+ failover->sw->set_vertex_elements( failover->sw, count, vertex_elements );
+ failover->hw->set_vertex_elements( failover->hw, count, vertex_elements );
+}
+
+void
+failover_set_constant_buffer(struct pipe_context *pipe,
+ uint shader, uint index,
+ const struct pipe_constant_buffer *buf)
+{
+ struct failover_context *failover = failover_context(pipe);
+
+ assert(shader < PIPE_SHADER_TYPES);
+ assert(index == 0);
+
+ failover->sw->set_constant_buffer(failover->sw, shader, index, buf);
+ failover->hw->set_constant_buffer(failover->hw, shader, index, buf);
+}
+
+
+void
+failover_init_state_functions( struct failover_context *failover )
+{
+ failover->pipe.create_blend_state = failover_create_blend_state;
+ failover->pipe.bind_blend_state = failover_bind_blend_state;
+ failover->pipe.delete_blend_state = failover_delete_blend_state;
+ failover->pipe.create_sampler_state = failover_create_sampler_state;
+ failover->pipe.bind_sampler_states = failover_bind_sampler_states;
+ failover->pipe.delete_sampler_state = failover_delete_sampler_state;
+ failover->pipe.create_depth_stencil_alpha_state = failover_create_depth_stencil_state;
+ failover->pipe.bind_depth_stencil_alpha_state = failover_bind_depth_stencil_state;
+ failover->pipe.delete_depth_stencil_alpha_state = failover_delete_depth_stencil_state;
+ failover->pipe.create_rasterizer_state = failover_create_rasterizer_state;
+ failover->pipe.bind_rasterizer_state = failover_bind_rasterizer_state;
+ failover->pipe.delete_rasterizer_state = failover_delete_rasterizer_state;
+ failover->pipe.create_fs_state = failover_create_fs_state;
+ failover->pipe.bind_fs_state = failover_bind_fs_state;
+ failover->pipe.delete_fs_state = failover_delete_fs_state;
+ failover->pipe.create_vs_state = failover_create_vs_state;
+ failover->pipe.bind_vs_state = failover_bind_vs_state;
+ failover->pipe.delete_vs_state = failover_delete_vs_state;
+
+ failover->pipe.set_blend_color = failover_set_blend_color;
+ failover->pipe.set_clip_state = failover_set_clip_state;
+ failover->pipe.set_framebuffer_state = failover_set_framebuffer_state;
+ failover->pipe.set_polygon_stipple = failover_set_polygon_stipple;
+ failover->pipe.set_scissor_state = failover_set_scissor_state;
+ failover->pipe.set_sampler_textures = failover_set_sampler_textures;
+ failover->pipe.set_viewport_state = failover_set_viewport_state;
+ failover->pipe.set_vertex_buffers = failover_set_vertex_buffers;
+ failover->pipe.set_vertex_elements = failover_set_vertex_elements;
+ failover->pipe.set_constant_buffer = failover_set_constant_buffer;
+}