diff options
Diffstat (limited to 'src/gallium/auxiliary/cso_cache/cso_context.c')
| -rw-r--r-- | src/gallium/auxiliary/cso_cache/cso_context.c | 866 |
1 files changed, 866 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/cso_cache/cso_context.c b/src/gallium/auxiliary/cso_cache/cso_context.c new file mode 100644 index 00000000000..68508f24de4 --- /dev/null +++ b/src/gallium/auxiliary/cso_cache/cso_context.c @@ -0,0 +1,866 @@ +/************************************************************************** + * + * 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. + * + **************************************************************************/ + + /** + * @file + * + * Wrap the cso cache & hash mechanisms in a simplified + * pipe-driver-specific interface. + * + * @author Zack Rusin <[email protected]> + * @author Keith Whitwell <[email protected]> + */ + +#include "pipe/p_state.h" +#include "util/u_memory.h" +#include "pipe/p_inlines.h" +#include "tgsi/tgsi_parse.h" + +#include "cso_cache/cso_context.h" +#include "cso_cache/cso_cache.h" +#include "cso_cache/cso_hash.h" + +struct cso_context { + struct pipe_context *pipe; + struct cso_cache *cache; + + struct { + void *samplers[PIPE_MAX_SAMPLERS]; + unsigned nr_samplers; + } hw; + + void *samplers[PIPE_MAX_SAMPLERS]; + unsigned nr_samplers; + + void *samplers_saved[PIPE_MAX_SAMPLERS]; + unsigned nr_samplers_saved; + + struct pipe_texture *textures[PIPE_MAX_SAMPLERS]; + uint nr_textures; + + struct pipe_texture *textures_saved[PIPE_MAX_SAMPLERS]; + uint nr_textures_saved; + + /** Current and saved state. + * The saved state is used as a 1-deep stack. + */ + void *blend, *blend_saved; + void *depth_stencil, *depth_stencil_saved; + void *rasterizer, *rasterizer_saved; + void *fragment_shader, *fragment_shader_saved; + void *vertex_shader, *vertex_shader_saved; + + struct pipe_framebuffer_state fb, fb_saved; + struct pipe_viewport_state vp, vp_saved; + struct pipe_blend_color blend_color; +}; + + +static void +free_framebuffer_state(struct pipe_framebuffer_state *fb); + + +static boolean delete_blend_state(struct cso_context *ctx, void *state) +{ + struct cso_blend *cso = (struct cso_blend *)state; + + if (ctx->blend == cso->data) + return FALSE; + + if (cso->delete_state) + cso->delete_state(cso->context, cso->data); + FREE(state); + return TRUE; +} + +static boolean delete_depth_stencil_state(struct cso_context *ctx, void *state) +{ + struct cso_depth_stencil_alpha *cso = (struct cso_depth_stencil_alpha *)state; + + if (ctx->depth_stencil == cso->data) + return FALSE; + + if (cso->delete_state) + cso->delete_state(cso->context, cso->data); + FREE(state); + + return TRUE; +} + +static boolean delete_sampler_state(struct cso_context *ctx, void *state) +{ + struct cso_sampler *cso = (struct cso_sampler *)state; + if (cso->delete_state) + cso->delete_state(cso->context, cso->data); + FREE(state); + return TRUE; +} + +static boolean delete_rasterizer_state(struct cso_context *ctx, void *state) +{ + struct cso_rasterizer *cso = (struct cso_rasterizer *)state; + + if (ctx->rasterizer == cso->data) + return FALSE; + if (cso->delete_state) + cso->delete_state(cso->context, cso->data); + FREE(state); + return TRUE; +} + +static boolean delete_fs_state(struct cso_context *ctx, void *state) +{ + struct cso_fragment_shader *cso = (struct cso_fragment_shader *)state; + if (ctx->fragment_shader == cso->data) + return FALSE; + if (cso->delete_state) + cso->delete_state(cso->context, cso->data); + FREE(state); + return TRUE; +} + +static boolean delete_vs_state(struct cso_context *ctx, void *state) +{ + struct cso_vertex_shader *cso = (struct cso_vertex_shader *)state; + if (ctx->vertex_shader == cso->data) + return TRUE; + if (cso->delete_state) + cso->delete_state(cso->context, cso->data); + FREE(state); + return FALSE; +} + + +static INLINE boolean delete_cso(struct cso_context *ctx, + void *state, enum cso_cache_type type) +{ + switch (type) { + case CSO_BLEND: + return delete_blend_state(ctx, state); + break; + case CSO_SAMPLER: + return delete_sampler_state(ctx, state); + break; + case CSO_DEPTH_STENCIL_ALPHA: + return delete_depth_stencil_state(ctx, state); + break; + case CSO_RASTERIZER: + return delete_rasterizer_state(ctx, state); + break; + case CSO_FRAGMENT_SHADER: + return delete_fs_state(ctx, state); + break; + case CSO_VERTEX_SHADER: + return delete_vs_state(ctx, state); + break; + default: + assert(0); + FREE(state); + } + return FALSE; +} + +static INLINE void sanitize_hash(struct cso_hash *hash, enum cso_cache_type type, + int max_size, void *user_data) +{ + struct cso_context *ctx = (struct cso_context *)user_data; + /* if we're approach the maximum size, remove fourth of the entries + * otherwise every subsequent call will go through the same */ + int hash_size = cso_hash_size(hash); + int max_entries = (max_size > hash_size) ? max_size : hash_size; + int to_remove = (max_size < max_entries) * max_entries/4; + struct cso_hash_iter iter = cso_hash_first_node(hash); + if (hash_size > max_size) + to_remove += hash_size - max_size; + while (to_remove) { + /*remove elements until we're good */ + /*fixme: currently we pick the nodes to remove at random*/ + void *cso = cso_hash_iter_data(iter); + if (delete_cso(ctx, cso, type)) { + iter = cso_hash_erase(hash, iter); + --to_remove; + } else + iter = cso_hash_iter_next(iter); + } +} + + +struct cso_context *cso_create_context( struct pipe_context *pipe ) +{ + struct cso_context *ctx = CALLOC_STRUCT(cso_context); + if (ctx == NULL) + goto out; + + ctx->cache = cso_cache_create(); + if (ctx->cache == NULL) + goto out; + cso_cache_set_sanitize_callback(ctx->cache, + sanitize_hash, + ctx); + + ctx->pipe = pipe; + + /* Enable for testing: */ + if (0) cso_set_maximum_cache_size( ctx->cache, 4 ); + + return ctx; + +out: + cso_destroy_context( ctx ); + return NULL; +} + + +/** + * Prior to context destruction, this function unbinds all state objects. + */ +void cso_release_all( struct cso_context *ctx ) +{ + unsigned i; + + if (ctx->pipe) { + ctx->pipe->bind_blend_state( ctx->pipe, NULL ); + ctx->pipe->bind_rasterizer_state( ctx->pipe, NULL ); + ctx->pipe->bind_sampler_states( ctx->pipe, 0, NULL ); + ctx->pipe->bind_depth_stencil_alpha_state( ctx->pipe, NULL ); + ctx->pipe->bind_fs_state( ctx->pipe, NULL ); + ctx->pipe->bind_vs_state( ctx->pipe, NULL ); + } + + for (i = 0; i < PIPE_MAX_SAMPLERS; i++) { + pipe_texture_reference(&ctx->textures[i], NULL); + pipe_texture_reference(&ctx->textures_saved[i], NULL); + } + + free_framebuffer_state(&ctx->fb); + free_framebuffer_state(&ctx->fb_saved); + + if (ctx->cache) { + cso_cache_delete( ctx->cache ); + ctx->cache = NULL; + } +} + + +void cso_destroy_context( struct cso_context *ctx ) +{ + if (ctx) { + //cso_release_all( ctx ); + FREE( ctx ); + } +} + + +/* Those function will either find the state of the given template + * in the cache or they will create a new state from the given + * template, insert it in the cache and return it. + */ + +/* + * If the driver returns 0 from the create method then they will assign + * the data member of the cso to be the template itself. + */ + +enum pipe_error cso_set_blend(struct cso_context *ctx, + const struct pipe_blend_state *templ) +{ + unsigned hash_key = cso_construct_key((void*)templ, sizeof(struct pipe_blend_state)); + struct cso_hash_iter iter = cso_find_state_template(ctx->cache, + hash_key, CSO_BLEND, + (void*)templ); + void *handle; + + if (cso_hash_iter_is_null(iter)) { + struct cso_blend *cso = MALLOC(sizeof(struct cso_blend)); + if (!cso) + return PIPE_ERROR_OUT_OF_MEMORY; + + memcpy(&cso->state, templ, sizeof(*templ)); + cso->data = ctx->pipe->create_blend_state(ctx->pipe, &cso->state); + cso->delete_state = (cso_state_callback)ctx->pipe->delete_blend_state; + cso->context = ctx->pipe; + + iter = cso_insert_state(ctx->cache, hash_key, CSO_BLEND, cso); + if (cso_hash_iter_is_null(iter)) { + FREE(cso); + return PIPE_ERROR_OUT_OF_MEMORY; + } + + handle = cso->data; + } + else { + handle = ((struct cso_blend *)cso_hash_iter_data(iter))->data; + } + + if (ctx->blend != handle) { + ctx->blend = handle; + ctx->pipe->bind_blend_state(ctx->pipe, handle); + } + return PIPE_OK; +} + +void cso_save_blend(struct cso_context *ctx) +{ + assert(!ctx->blend_saved); + ctx->blend_saved = ctx->blend; +} + +void cso_restore_blend(struct cso_context *ctx) +{ + if (ctx->blend != ctx->blend_saved) { + ctx->blend = ctx->blend_saved; + ctx->pipe->bind_blend_state(ctx->pipe, ctx->blend_saved); + } + ctx->blend_saved = NULL; +} + + + +enum pipe_error cso_single_sampler(struct cso_context *ctx, + unsigned idx, + const struct pipe_sampler_state *templ) +{ + void *handle = NULL; + + if (templ != NULL) { + unsigned hash_key = cso_construct_key((void*)templ, sizeof(struct pipe_sampler_state)); + struct cso_hash_iter iter = cso_find_state_template(ctx->cache, + hash_key, CSO_SAMPLER, + (void*)templ); + + if (cso_hash_iter_is_null(iter)) { + struct cso_sampler *cso = MALLOC(sizeof(struct cso_sampler)); + if (!cso) + return PIPE_ERROR_OUT_OF_MEMORY; + + memcpy(&cso->state, templ, sizeof(*templ)); + cso->data = ctx->pipe->create_sampler_state(ctx->pipe, &cso->state); + cso->delete_state = (cso_state_callback)ctx->pipe->delete_sampler_state; + cso->context = ctx->pipe; + + iter = cso_insert_state(ctx->cache, hash_key, CSO_SAMPLER, cso); + if (cso_hash_iter_is_null(iter)) { + FREE(cso); + return PIPE_ERROR_OUT_OF_MEMORY; + } + + handle = cso->data; + } + else { + handle = ((struct cso_sampler *)cso_hash_iter_data(iter))->data; + } + } + + ctx->samplers[idx] = handle; + return PIPE_OK; +} + +void cso_single_sampler_done( struct cso_context *ctx ) +{ + unsigned i; + + /* find highest non-null sampler */ + for (i = PIPE_MAX_SAMPLERS; i > 0; i--) { + if (ctx->samplers[i - 1] != NULL) + break; + } + + ctx->nr_samplers = i; + + if (ctx->hw.nr_samplers != ctx->nr_samplers || + memcmp(ctx->hw.samplers, + ctx->samplers, + ctx->nr_samplers * sizeof(void *)) != 0) + { + memcpy(ctx->hw.samplers, ctx->samplers, ctx->nr_samplers * sizeof(void *)); + ctx->hw.nr_samplers = ctx->nr_samplers; + + ctx->pipe->bind_sampler_states(ctx->pipe, ctx->nr_samplers, ctx->samplers); + } +} + +/* + * If the function encouters any errors it will return the + * last one. Done to always try to set as many samplers + * as possible. + */ +enum pipe_error cso_set_samplers( struct cso_context *ctx, + unsigned nr, + const struct pipe_sampler_state **templates ) +{ + unsigned i; + enum pipe_error temp, error = PIPE_OK; + + /* TODO: fastpath + */ + + for (i = 0; i < nr; i++) { + temp = cso_single_sampler( ctx, i, templates[i] ); + if (temp != PIPE_OK) + error = temp; + } + + for ( ; i < ctx->nr_samplers; i++) { + temp = cso_single_sampler( ctx, i, NULL ); + if (temp != PIPE_OK) + error = temp; + } + + cso_single_sampler_done( ctx ); + + return error; +} + +void cso_save_samplers(struct cso_context *ctx) +{ + ctx->nr_samplers_saved = ctx->nr_samplers; + memcpy(ctx->samplers_saved, ctx->samplers, sizeof(ctx->samplers)); +} + +void cso_restore_samplers(struct cso_context *ctx) +{ + ctx->nr_samplers = ctx->nr_samplers_saved; + memcpy(ctx->samplers, ctx->samplers_saved, sizeof(ctx->samplers)); + cso_single_sampler_done( ctx ); +} + + +enum pipe_error cso_set_sampler_textures( struct cso_context *ctx, + uint count, + struct pipe_texture **textures ) +{ + uint i; + + ctx->nr_textures = count; + + for (i = 0; i < count; i++) + pipe_texture_reference(&ctx->textures[i], textures[i]); + for ( ; i < PIPE_MAX_SAMPLERS; i++) + pipe_texture_reference(&ctx->textures[i], NULL); + + ctx->pipe->set_sampler_textures(ctx->pipe, count, textures); + + return PIPE_OK; +} + +void cso_save_sampler_textures( struct cso_context *ctx ) +{ + uint i; + + ctx->nr_textures_saved = ctx->nr_textures; + for (i = 0; i < ctx->nr_textures; i++) { + assert(!ctx->textures_saved[i]); + pipe_texture_reference(&ctx->textures_saved[i], ctx->textures[i]); + } +} + +void cso_restore_sampler_textures( struct cso_context *ctx ) +{ + uint i; + + ctx->nr_textures = ctx->nr_textures_saved; + + for (i = 0; i < ctx->nr_textures; i++) { + pipe_texture_reference(&ctx->textures[i], NULL); + ctx->textures[i] = ctx->textures_saved[i]; + ctx->textures_saved[i] = NULL; + } + for ( ; i < PIPE_MAX_SAMPLERS; i++) + pipe_texture_reference(&ctx->textures[i], NULL); + + ctx->pipe->set_sampler_textures(ctx->pipe, ctx->nr_textures, ctx->textures); + + ctx->nr_textures_saved = 0; +} + + + +enum pipe_error cso_set_depth_stencil_alpha(struct cso_context *ctx, + const struct pipe_depth_stencil_alpha_state *templ) +{ + unsigned hash_key = cso_construct_key((void*)templ, + sizeof(struct pipe_depth_stencil_alpha_state)); + struct cso_hash_iter iter = cso_find_state_template(ctx->cache, + hash_key, + CSO_DEPTH_STENCIL_ALPHA, + (void*)templ); + void *handle; + + if (cso_hash_iter_is_null(iter)) { + struct cso_depth_stencil_alpha *cso = MALLOC(sizeof(struct cso_depth_stencil_alpha)); + if (!cso) + return PIPE_ERROR_OUT_OF_MEMORY; + + memcpy(&cso->state, templ, sizeof(*templ)); + cso->data = ctx->pipe->create_depth_stencil_alpha_state(ctx->pipe, &cso->state); + cso->delete_state = (cso_state_callback)ctx->pipe->delete_depth_stencil_alpha_state; + cso->context = ctx->pipe; + + iter = cso_insert_state(ctx->cache, hash_key, CSO_DEPTH_STENCIL_ALPHA, cso); + if (cso_hash_iter_is_null(iter)) { + FREE(cso); + return PIPE_ERROR_OUT_OF_MEMORY; + } + + handle = cso->data; + } + else { + handle = ((struct cso_depth_stencil_alpha *)cso_hash_iter_data(iter))->data; + } + + if (ctx->depth_stencil != handle) { + ctx->depth_stencil = handle; + ctx->pipe->bind_depth_stencil_alpha_state(ctx->pipe, handle); + } + return PIPE_OK; +} + +void cso_save_depth_stencil_alpha(struct cso_context *ctx) +{ + assert(!ctx->depth_stencil_saved); + ctx->depth_stencil_saved = ctx->depth_stencil; +} + +void cso_restore_depth_stencil_alpha(struct cso_context *ctx) +{ + if (ctx->depth_stencil != ctx->depth_stencil_saved) { + ctx->depth_stencil = ctx->depth_stencil_saved; + ctx->pipe->bind_depth_stencil_alpha_state(ctx->pipe, ctx->depth_stencil_saved); + } + ctx->depth_stencil_saved = NULL; +} + + + +enum pipe_error cso_set_rasterizer(struct cso_context *ctx, + const struct pipe_rasterizer_state *templ) +{ + unsigned hash_key = cso_construct_key((void*)templ, + sizeof(struct pipe_rasterizer_state)); + struct cso_hash_iter iter = cso_find_state_template(ctx->cache, + hash_key, CSO_RASTERIZER, + (void*)templ); + void *handle = NULL; + + if (cso_hash_iter_is_null(iter)) { + struct cso_rasterizer *cso = MALLOC(sizeof(struct cso_rasterizer)); + if (!cso) + return PIPE_ERROR_OUT_OF_MEMORY; + + memcpy(&cso->state, templ, sizeof(*templ)); + cso->data = ctx->pipe->create_rasterizer_state(ctx->pipe, &cso->state); + cso->delete_state = (cso_state_callback)ctx->pipe->delete_rasterizer_state; + cso->context = ctx->pipe; + + iter = cso_insert_state(ctx->cache, hash_key, CSO_RASTERIZER, cso); + if (cso_hash_iter_is_null(iter)) { + FREE(cso); + return PIPE_ERROR_OUT_OF_MEMORY; + } + + handle = cso->data; + } + else { + handle = ((struct cso_rasterizer *)cso_hash_iter_data(iter))->data; + } + + if (ctx->rasterizer != handle) { + ctx->rasterizer = handle; + ctx->pipe->bind_rasterizer_state(ctx->pipe, handle); + } + return PIPE_OK; +} + +void cso_save_rasterizer(struct cso_context *ctx) +{ + assert(!ctx->rasterizer_saved); + ctx->rasterizer_saved = ctx->rasterizer; +} + +void cso_restore_rasterizer(struct cso_context *ctx) +{ + if (ctx->rasterizer != ctx->rasterizer_saved) { + ctx->rasterizer = ctx->rasterizer_saved; + ctx->pipe->bind_rasterizer_state(ctx->pipe, ctx->rasterizer_saved); + } + ctx->rasterizer_saved = NULL; +} + + + +enum pipe_error cso_set_fragment_shader_handle(struct cso_context *ctx, + void *handle ) +{ + if (ctx->fragment_shader != handle) { + ctx->fragment_shader = handle; + ctx->pipe->bind_fs_state(ctx->pipe, handle); + } + return PIPE_OK; +} + +void cso_delete_fragment_shader(struct cso_context *ctx, void *handle ) +{ + if (handle == ctx->fragment_shader) { + /* unbind before deleting */ + ctx->pipe->bind_fs_state(ctx->pipe, NULL); + ctx->fragment_shader = NULL; + } + ctx->pipe->delete_fs_state(ctx->pipe, handle); +} + +/* Not really working: + */ +#if 0 +enum pipe_error cso_set_fragment_shader(struct cso_context *ctx, + const struct pipe_shader_state *templ) +{ + const struct tgsi_token *tokens = templ->tokens; + unsigned num_tokens = tgsi_num_tokens(tokens); + size_t tokens_size = num_tokens*sizeof(struct tgsi_token); + unsigned hash_key = cso_construct_key((void*)tokens, tokens_size); + struct cso_hash_iter iter = cso_find_state_template(ctx->cache, + hash_key, + CSO_FRAGMENT_SHADER, + (void*)tokens); + void *handle = NULL; + + if (cso_hash_iter_is_null(iter)) { + struct cso_fragment_shader *cso = MALLOC(sizeof(struct cso_fragment_shader) + tokens_size); + struct tgsi_token *cso_tokens = (struct tgsi_token *)((char *)cso + sizeof(*cso)); + + if (!cso) + return PIPE_ERROR_OUT_OF_MEMORY; + + memcpy(cso_tokens, tokens, tokens_size); + cso->state.tokens = cso_tokens; + cso->data = ctx->pipe->create_fs_state(ctx->pipe, &cso->state); + cso->delete_state = (cso_state_callback)ctx->pipe->delete_fs_state; + cso->context = ctx->pipe; + + iter = cso_insert_state(ctx->cache, hash_key, CSO_FRAGMENT_SHADER, cso); + if (cso_hash_iter_is_null(iter)) { + FREE(cso); + return PIPE_ERROR_OUT_OF_MEMORY; + } + + handle = cso->data; + } + else { + handle = ((struct cso_fragment_shader *)cso_hash_iter_data(iter))->data; + } + + return cso_set_fragment_shader_handle( ctx, handle ); +} +#endif + +void cso_save_fragment_shader(struct cso_context *ctx) +{ + assert(!ctx->fragment_shader_saved); + ctx->fragment_shader_saved = ctx->fragment_shader; +} + +void cso_restore_fragment_shader(struct cso_context *ctx) +{ + if (ctx->fragment_shader_saved != ctx->fragment_shader) { + ctx->pipe->bind_fs_state(ctx->pipe, ctx->fragment_shader_saved); + ctx->fragment_shader = ctx->fragment_shader_saved; + } + ctx->fragment_shader_saved = NULL; +} + + +enum pipe_error cso_set_vertex_shader_handle(struct cso_context *ctx, + void *handle ) +{ + if (ctx->vertex_shader != handle) { + ctx->vertex_shader = handle; + ctx->pipe->bind_vs_state(ctx->pipe, handle); + } + return PIPE_OK; +} + +void cso_delete_vertex_shader(struct cso_context *ctx, void *handle ) +{ + if (handle == ctx->vertex_shader) { + /* unbind before deleting */ + ctx->pipe->bind_vs_state(ctx->pipe, NULL); + ctx->vertex_shader = NULL; + } + ctx->pipe->delete_vs_state(ctx->pipe, handle); +} + + +/* Not really working: + */ +#if 0 +enum pipe_error cso_set_vertex_shader(struct cso_context *ctx, + const struct pipe_shader_state *templ) +{ + unsigned hash_key = cso_construct_key((void*)templ, + sizeof(struct pipe_shader_state)); + struct cso_hash_iter iter = cso_find_state_template(ctx->cache, + hash_key, CSO_VERTEX_SHADER, + (void*)templ); + void *handle = NULL; + + if (cso_hash_iter_is_null(iter)) { + struct cso_vertex_shader *cso = MALLOC(sizeof(struct cso_vertex_shader)); + + if (!cso) + return PIPE_ERROR_OUT_OF_MEMORY; + + memcpy(cso->state, templ, sizeof(*templ)); + cso->data = ctx->pipe->create_vs_state(ctx->pipe, &cso->state); + cso->delete_state = (cso_state_callback)ctx->pipe->delete_vs_state; + cso->context = ctx->pipe; + + iter = cso_insert_state(ctx->cache, hash_key, CSO_VERTEX_SHADER, cso); + if (cso_hash_iter_is_null(iter)) { + FREE(cso); + return PIPE_ERROR_OUT_OF_MEMORY; + } + + handle = cso->data; + } + else { + handle = ((struct cso_vertex_shader *)cso_hash_iter_data(iter))->data; + } + + return cso_set_vertex_shader_handle( ctx, handle ); +} +#endif + + + +void cso_save_vertex_shader(struct cso_context *ctx) +{ + assert(!ctx->vertex_shader_saved); + ctx->vertex_shader_saved = ctx->vertex_shader; +} + +void cso_restore_vertex_shader(struct cso_context *ctx) +{ + if (ctx->vertex_shader_saved != ctx->vertex_shader) { + ctx->pipe->bind_vs_state(ctx->pipe, ctx->vertex_shader_saved); + ctx->vertex_shader = ctx->vertex_shader_saved; + } + ctx->vertex_shader_saved = NULL; +} + + +/** + * Copy framebuffer state from src to dst with refcounting of surfaces. + */ +static void +copy_framebuffer_state(struct pipe_framebuffer_state *dst, + const struct pipe_framebuffer_state *src) +{ + uint i; + + dst->width = src->width; + dst->height = src->height; + dst->num_cbufs = src->num_cbufs; + for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { + pipe_surface_reference(&dst->cbufs[i], src->cbufs[i]); + } + pipe_surface_reference(&dst->zsbuf, src->zsbuf); +} + + +static void +free_framebuffer_state(struct pipe_framebuffer_state *fb) +{ + uint i; + + for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { + pipe_surface_reference(&fb->cbufs[i], NULL); + } + pipe_surface_reference(&fb->zsbuf, NULL); +} + + +enum pipe_error cso_set_framebuffer(struct cso_context *ctx, + const struct pipe_framebuffer_state *fb) +{ + if (memcmp(&ctx->fb, fb, sizeof(*fb)) != 0) { + copy_framebuffer_state(&ctx->fb, fb); + ctx->pipe->set_framebuffer_state(ctx->pipe, fb); + } + return PIPE_OK; +} + +void cso_save_framebuffer(struct cso_context *ctx) +{ + copy_framebuffer_state(&ctx->fb_saved, &ctx->fb); +} + +void cso_restore_framebuffer(struct cso_context *ctx) +{ + if (memcmp(&ctx->fb, &ctx->fb_saved, sizeof(ctx->fb))) { + copy_framebuffer_state(&ctx->fb, &ctx->fb_saved); + ctx->pipe->set_framebuffer_state(ctx->pipe, &ctx->fb); + free_framebuffer_state(&ctx->fb_saved); + } +} + + +enum pipe_error cso_set_viewport(struct cso_context *ctx, + const struct pipe_viewport_state *vp) +{ + if (memcmp(&ctx->vp, vp, sizeof(*vp))) { + ctx->vp = *vp; + ctx->pipe->set_viewport_state(ctx->pipe, vp); + } + return PIPE_OK; +} + +void cso_save_viewport(struct cso_context *ctx) +{ + ctx->vp_saved = ctx->vp; +} + + +void cso_restore_viewport(struct cso_context *ctx) +{ + if (memcmp(&ctx->vp, &ctx->vp_saved, sizeof(ctx->vp))) { + ctx->vp = ctx->vp_saved; + ctx->pipe->set_viewport_state(ctx->pipe, &ctx->vp); + } +} + + + + +enum pipe_error cso_set_blend_color(struct cso_context *ctx, + const struct pipe_blend_color *bc) +{ + if (memcmp(&ctx->blend_color, bc, sizeof(ctx->blend_color))) { + ctx->blend_color = *bc; + ctx->pipe->set_blend_color(ctx->pipe, bc); + } + return PIPE_OK; +} |