diff options
Diffstat (limited to 'src/gallium/state_trackers/python/st_device.c')
| -rw-r--r-- | src/gallium/state_trackers/python/st_device.c | 323 |
1 files changed, 323 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/python/st_device.c b/src/gallium/state_trackers/python/st_device.c new file mode 100644 index 00000000000..20dd8d269d9 --- /dev/null +++ b/src/gallium/state_trackers/python/st_device.c @@ -0,0 +1,323 @@ +/************************************************************************** + * + * Copyright 2008 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. + * + **************************************************************************/ + + +#include "pipe/p_screen.h" +#include "pipe/p_context.h" +#include "pipe/p_shader_tokens.h" +#include "pipe/p_inlines.h" +#include "cso_cache/cso_context.h" +#include "util/u_math.h" +#include "util/u_memory.h" +#include "util/u_simple_shaders.h" +#include "trace/tr_screen.h" +#include "trace/tr_context.h" + +#include "st_device.h" +#include "st_winsys.h" + + +static void +st_device_really_destroy(struct st_device *st_dev) +{ + if(st_dev->screen) + st_dev->screen->destroy(st_dev->screen); + + FREE(st_dev); +} + + +void +st_device_destroy(struct st_device *st_dev) +{ + if(!--st_dev->refcount) + st_device_really_destroy(st_dev); +} + + +static struct st_device * +st_device_create_from_st_winsys(const struct st_winsys *st_ws) +{ + struct st_device *st_dev; + + if(!st_ws->screen_create || + !st_ws->context_create) + return NULL; + + st_dev = CALLOC_STRUCT(st_device); + if(!st_dev) + return NULL; + + st_dev->refcount = 1; + st_dev->st_ws = st_ws; + + st_dev->real_screen = st_ws->screen_create(); + if(!st_dev->real_screen) { + st_device_destroy(st_dev); + return NULL; + } + + st_dev->screen = trace_screen_create(st_dev->real_screen); + if(!st_dev->screen) { + st_device_destroy(st_dev); + return NULL; + } + + return st_dev; +} + + +struct st_device * +st_device_create(boolean hardware) { + if(hardware) + return st_device_create_from_st_winsys(&st_hardpipe_winsys); + else + return st_device_create_from_st_winsys(&st_softpipe_winsys); +} + + +void +st_context_destroy(struct st_context *st_ctx) +{ + unsigned i; + + if(st_ctx) { + struct st_device *st_dev = st_ctx->st_dev; + + if(st_ctx->cso) { + cso_delete_vertex_shader(st_ctx->cso, st_ctx->vs); + cso_delete_fragment_shader(st_ctx->cso, st_ctx->fs); + + cso_destroy_context(st_ctx->cso); + } + + if(st_ctx->pipe) + st_ctx->pipe->destroy(st_ctx->pipe); + + for(i = 0; i < PIPE_MAX_SAMPLERS; ++i) + pipe_texture_reference(&st_ctx->sampler_textures[i], NULL); + pipe_texture_reference(&st_ctx->default_texture, NULL); + + FREE(st_ctx); + + if(!--st_dev->refcount) + st_device_really_destroy(st_dev); + } +} + + +struct st_context * +st_context_create(struct st_device *st_dev) +{ + struct st_context *st_ctx; + + st_ctx = CALLOC_STRUCT(st_context); + if(!st_ctx) + return NULL; + + st_ctx->st_dev = st_dev; + ++st_dev->refcount; + + st_ctx->real_pipe = st_dev->st_ws->context_create(st_dev->real_screen); + if(!st_ctx->real_pipe) { + st_context_destroy(st_ctx); + return NULL; + } + + st_ctx->pipe = trace_context_create(st_dev->screen, st_ctx->real_pipe); + if(!st_ctx->pipe) { + st_context_destroy(st_ctx); + return NULL; + } + + st_ctx->cso = cso_create_context(st_ctx->pipe); + if(!st_ctx->cso) { + st_context_destroy(st_ctx); + return NULL; + } + + /* disabled blending/masking */ + { + struct pipe_blend_state blend; + memset(&blend, 0, sizeof(blend)); + blend.rgb_src_factor = PIPE_BLENDFACTOR_ONE; + blend.alpha_src_factor = PIPE_BLENDFACTOR_ONE; + blend.rgb_dst_factor = PIPE_BLENDFACTOR_ZERO; + blend.alpha_dst_factor = PIPE_BLENDFACTOR_ZERO; + blend.colormask = PIPE_MASK_RGBA; + cso_set_blend(st_ctx->cso, &blend); + } + + /* no-op depth/stencil/alpha */ + { + struct pipe_depth_stencil_alpha_state depthstencil; + memset(&depthstencil, 0, sizeof(depthstencil)); + cso_set_depth_stencil_alpha(st_ctx->cso, &depthstencil); + } + + /* rasterizer */ + { + struct pipe_rasterizer_state rasterizer; + memset(&rasterizer, 0, sizeof(rasterizer)); + rasterizer.front_winding = PIPE_WINDING_CW; + rasterizer.cull_mode = PIPE_WINDING_NONE; + rasterizer.bypass_clipping = 1; + /*rasterizer.bypass_vs = 1;*/ + cso_set_rasterizer(st_ctx->cso, &rasterizer); + } + + /* identity viewport */ + { + struct pipe_viewport_state viewport; + viewport.scale[0] = 1.0; + viewport.scale[1] = 1.0; + viewport.scale[2] = 1.0; + viewport.scale[3] = 1.0; + viewport.translate[0] = 0.0; + viewport.translate[1] = 0.0; + viewport.translate[2] = 0.0; + viewport.translate[3] = 0.0; + cso_set_viewport(st_ctx->cso, &viewport); + } + + /* samplers */ + { + struct pipe_sampler_state sampler; + unsigned i; + memset(&sampler, 0, sizeof(sampler)); + sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST; + sampler.min_img_filter = PIPE_TEX_MIPFILTER_NEAREST; + sampler.mag_img_filter = PIPE_TEX_MIPFILTER_NEAREST; + sampler.normalized_coords = 1; + for (i = 0; i < PIPE_MAX_SAMPLERS; i++) + cso_single_sampler(st_ctx->cso, i, &sampler); + cso_single_sampler_done(st_ctx->cso); + } + + /* default textures */ + { + struct pipe_screen *screen = st_dev->screen; + struct pipe_texture templat; + struct pipe_surface *surface; + unsigned i; + + memset( &templat, 0, sizeof( templat ) ); + templat.target = PIPE_TEXTURE_2D; + templat.format = PIPE_FORMAT_A8R8G8B8_UNORM; + templat.block.size = 4; + templat.block.width = 1; + templat.block.height = 1; + templat.width[0] = 1; + templat.height[0] = 1; + templat.depth[0] = 1; + templat.last_level = 0; + + st_ctx->default_texture = screen->texture_create( screen, &templat ); + if(st_ctx->default_texture) { + surface = screen->get_tex_surface( screen, + st_ctx->default_texture, 0, 0, 0, + PIPE_BUFFER_USAGE_CPU_WRITE ); + if(surface) { + uint32_t *map; + map = (uint32_t *) pipe_surface_map(surface, PIPE_BUFFER_USAGE_CPU_WRITE ); + if(map) { + *map = 0x00000000; + pipe_surface_unmap( surface ); + } + pipe_surface_reference(&surface, NULL); + } + } + + for (i = 0; i < PIPE_MAX_SAMPLERS; i++) + pipe_texture_reference(&st_ctx->sampler_textures[i], st_ctx->default_texture); + + cso_set_sampler_textures(st_ctx->cso, PIPE_MAX_SAMPLERS, st_ctx->sampler_textures); + } + + /* vertex shader */ + { + struct pipe_shader_state vert_shader; + + const uint semantic_names[] = { TGSI_SEMANTIC_POSITION, + TGSI_SEMANTIC_GENERIC }; + const uint semantic_indexes[] = { 0, 0 }; + st_ctx->vs = util_make_vertex_passthrough_shader(st_ctx->pipe, + 2, + semantic_names, + semantic_indexes, + &vert_shader); + cso_set_vertex_shader_handle(st_ctx->cso, st_ctx->vs); + } + + /* fragment shader */ + { + struct pipe_shader_state frag_shader; + st_ctx->fs = util_make_fragment_passthrough_shader(st_ctx->pipe, + &frag_shader); + cso_set_fragment_shader_handle(st_ctx->cso, st_ctx->fs); + } + + return st_ctx; +} + + +void +st_buffer_destroy(struct st_buffer *st_buf) +{ + if(st_buf) { + struct pipe_screen *screen = st_buf->st_dev->screen; + pipe_buffer_reference(screen, &st_buf->buffer, NULL); + FREE(st_buf); + } +} + + +struct st_buffer * +st_buffer_create(struct st_device *st_dev, + unsigned alignment, unsigned usage, unsigned size) +{ + struct pipe_screen *screen = st_dev->screen; + struct st_buffer *st_buf; + + st_buf = CALLOC_STRUCT(st_buffer); + if(!st_buf) + return NULL; + + st_buf->st_dev = st_dev; + + st_buf->buffer = pipe_buffer_create(screen, alignment, usage, size); + if(!st_buf->buffer) { + st_buffer_destroy(st_buf); + return NULL; + } + + return st_buf; +} + |