diff options
Diffstat (limited to 'src/gallium/state_trackers/vega/vg_context.c')
| -rw-r--r-- | src/gallium/state_trackers/vega/vg_context.c | 543 |
1 files changed, 543 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/vega/vg_context.c b/src/gallium/state_trackers/vega/vg_context.c new file mode 100644 index 0000000000..e0ff02f3a9 --- /dev/null +++ b/src/gallium/state_trackers/vega/vg_context.c @@ -0,0 +1,543 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. 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 VMWARE 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 "vg_context.h" + +#include "paint.h" +#include "renderer.h" +#include "shaders_cache.h" +#include "shader.h" +#include "asm_util.h" +#include "st_inlines.h" + +#include "pipe/p_context.h" +#include "pipe/p_inlines.h" +#include "pipe/p_shader_tokens.h" + +#include "cso_cache/cso_context.h" + +#include "util/u_simple_shaders.h" +#include "util/u_memory.h" +#include "util/u_blit.h" + +struct vg_context *_vg_context = 0; + +struct vg_context * vg_current_context(void) +{ + return _vg_context; +} + +static void init_clear(struct vg_context *st) +{ + struct pipe_context *pipe = st->pipe; + + /* rasterizer state: bypass clipping */ + memset(&st->clear.raster, 0, sizeof(st->clear.raster)); + st->clear.raster.gl_rasterization_rules = 1; + + /* fragment shader state: color pass-through program */ + st->clear.fs = + util_make_fragment_passthrough_shader(pipe); +} +void vg_set_current_context(struct vg_context *ctx) +{ + _vg_context = ctx; +} + +struct vg_context * vg_create_context(struct pipe_context *pipe, + const void *visual, + struct vg_context *share) +{ + struct vg_context *ctx; + + ctx = CALLOC_STRUCT(vg_context); + + ctx->pipe = pipe; + + vg_init_state(&ctx->state.vg); + ctx->state.dirty = ALL_DIRTY; + + ctx->cso_context = cso_create_context(pipe); + + init_clear(ctx); + + ctx->default_paint = paint_create(ctx); + ctx->state.vg.stroke_paint = ctx->default_paint; + ctx->state.vg.fill_paint = ctx->default_paint; + + + ctx->mask.sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + ctx->mask.sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + ctx->mask.sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; + ctx->mask.sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; + ctx->mask.sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; + ctx->mask.sampler.normalized_coords = 0; + + ctx->blend_sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + ctx->blend_sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + ctx->blend_sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; + ctx->blend_sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; + ctx->blend_sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; + ctx->blend_sampler.normalized_coords = 0; + + vg_set_error(ctx, VG_NO_ERROR); + + ctx->owned_objects[VG_OBJECT_PAINT] = cso_hash_create(); + ctx->owned_objects[VG_OBJECT_IMAGE] = cso_hash_create(); + ctx->owned_objects[VG_OBJECT_MASK] = cso_hash_create(); + ctx->owned_objects[VG_OBJECT_FONT] = cso_hash_create(); + ctx->owned_objects[VG_OBJECT_PATH] = cso_hash_create(); + + ctx->renderer = renderer_create(ctx); + ctx->sc = shaders_cache_create(ctx); + ctx->shader = shader_create(ctx); + + ctx->blit = util_create_blit(ctx->pipe, ctx->cso_context); + + return ctx; +} + +void vg_destroy_context(struct vg_context *ctx) +{ + struct pipe_constant_buffer *cbuf = &ctx->mask.cbuf; + struct pipe_constant_buffer *vsbuf = &ctx->vs_const_buffer; + + util_destroy_blit(ctx->blit); + renderer_destroy(ctx->renderer); + shaders_cache_destroy(ctx->sc); + shader_destroy(ctx->shader); + paint_destroy(ctx->default_paint); + + if (cbuf && cbuf->buffer) + pipe_buffer_reference(&cbuf->buffer, NULL); + + if (vsbuf && vsbuf->buffer) + pipe_buffer_reference(&vsbuf->buffer, NULL); + + if (ctx->clear.fs) { + cso_delete_fragment_shader(ctx->cso_context, ctx->clear.fs); + ctx->clear.fs = NULL; + } + + if (ctx->plain_vs) { + vg_shader_destroy(ctx, ctx->plain_vs); + ctx->plain_vs = NULL; + } + if (ctx->clear_vs) { + vg_shader_destroy(ctx, ctx->clear_vs); + ctx->clear_vs = NULL; + } + if (ctx->texture_vs) { + vg_shader_destroy(ctx, ctx->texture_vs); + ctx->texture_vs = NULL; + } + + if (ctx->pass_through_depth_fs) + vg_shader_destroy(ctx, ctx->pass_through_depth_fs); + if (ctx->mask.union_fs) + vg_shader_destroy(ctx, ctx->mask.union_fs); + if (ctx->mask.intersect_fs) + vg_shader_destroy(ctx, ctx->mask.intersect_fs); + if (ctx->mask.subtract_fs) + vg_shader_destroy(ctx, ctx->mask.subtract_fs); + if (ctx->mask.set_fs) + vg_shader_destroy(ctx, ctx->mask.set_fs); + + cso_release_all(ctx->cso_context); + cso_destroy_context(ctx->cso_context); + + cso_hash_delete(ctx->owned_objects[VG_OBJECT_PAINT]); + cso_hash_delete(ctx->owned_objects[VG_OBJECT_IMAGE]); + cso_hash_delete(ctx->owned_objects[VG_OBJECT_MASK]); + cso_hash_delete(ctx->owned_objects[VG_OBJECT_FONT]); + cso_hash_delete(ctx->owned_objects[VG_OBJECT_PATH]); + + free(ctx); +} + +void vg_init_object(struct vg_object *obj, struct vg_context *ctx, enum vg_object_type type) +{ + obj->type = type; + obj->ctx = ctx; +} + +VGboolean vg_context_is_object_valid(struct vg_context *ctx, + enum vg_object_type type, + void *ptr) +{ + if (ctx) { + struct cso_hash *hash = ctx->owned_objects[type]; + if (!hash) + return VG_FALSE; + return cso_hash_contains(hash, (unsigned)(long)ptr); + } + return VG_FALSE; +} + +void vg_context_add_object(struct vg_context *ctx, + enum vg_object_type type, + void *ptr) +{ + if (ctx) { + struct cso_hash *hash = ctx->owned_objects[type]; + if (!hash) + return; + cso_hash_insert(hash, (unsigned)(long)ptr, ptr); + } +} + +void vg_context_remove_object(struct vg_context *ctx, + enum vg_object_type type, + void *ptr) +{ + if (ctx) { + struct cso_hash *hash = ctx->owned_objects[type]; + if (!hash) + return; + cso_hash_take(hash, (unsigned)(long)ptr); + } +} + +static void update_clip_state(struct vg_context *ctx) +{ + struct pipe_depth_stencil_alpha_state *dsa = &ctx->state.g3d.dsa; + struct vg_state *state = &ctx->state.vg; + + memset(dsa, 0, sizeof(struct pipe_depth_stencil_alpha_state)); + + if (state->scissoring) { + struct pipe_blend_state *blend = &ctx->state.g3d.blend; + struct pipe_framebuffer_state *fb = &ctx->state.g3d.fb; + dsa->depth.writemask = 1;/*glDepthMask(TRUE);*/ + dsa->depth.func = PIPE_FUNC_ALWAYS; + dsa->depth.enabled = 1; + + cso_save_blend(ctx->cso_context); + cso_save_fragment_shader(ctx->cso_context); + /* set a passthrough shader */ + if (!ctx->pass_through_depth_fs) + ctx->pass_through_depth_fs = shader_create_from_text(ctx->pipe, + pass_through_depth_asm, + 40, + PIPE_SHADER_FRAGMENT); + cso_set_fragment_shader_handle(ctx->cso_context, + ctx->pass_through_depth_fs->driver); + cso_set_depth_stencil_alpha(ctx->cso_context, dsa); + + ctx->pipe->clear(ctx->pipe, PIPE_CLEAR_DEPTHSTENCIL, NULL, 1.0, 0); + + /* disable color writes */ + blend->colormask = 0; /*disable colorwrites*/ + cso_set_blend(ctx->cso_context, blend); + + /* enable scissoring */ + for (int i = 0; i < state->scissor_rects_num; ++i) { + const float x = state->scissor_rects[i * 4 + 0].f; + const float y = state->scissor_rects[i * 4 + 1].f; + const float width = state->scissor_rects[i * 4 + 2].f; + const float height = state->scissor_rects[i * 4 + 3].f; + VGfloat minx, miny, maxx, maxy; + + minx = 0; + miny = 0; + maxx = fb->width; + maxy = fb->height; + + if (x > minx) + minx = x; + if (y > miny) + miny = y; + + if (x + width < maxx) + maxx = x + width; + if (y + height < maxy) + maxy = y + height; + + /* check for null space */ + if (minx >= maxx || miny >= maxy) + minx = miny = maxx = maxy = 0; + + /*glClear(GL_DEPTH_BUFFER_BIT);*/ + renderer_draw_quad(ctx->renderer, minx, miny, maxx, maxy, 0.0f); + } + + blend->colormask = 1; /*enable colorwrites*/ + cso_restore_blend(ctx->cso_context); + cso_restore_fragment_shader(ctx->cso_context); + + dsa->depth.enabled = 1; /* glEnable(GL_DEPTH_TEST); */ + dsa->depth.writemask = 0;/*glDepthMask(FALSE);*/ + dsa->depth.func = PIPE_FUNC_GEQUAL; + } +} + +void vg_validate_state(struct vg_context *ctx) +{ + if ((ctx->state.dirty & BLEND_DIRTY)) { + struct pipe_blend_state *blend = &ctx->state.g3d.blend; + memset(blend, 0, sizeof(struct pipe_blend_state)); + blend->blend_enable = 1; + blend->colormask |= PIPE_MASK_R; + blend->colormask |= PIPE_MASK_G; + blend->colormask |= PIPE_MASK_B; + blend->colormask |= PIPE_MASK_A; + + switch (ctx->state.vg.blend_mode) { + case VG_BLEND_SRC: + 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; + break; + case VG_BLEND_SRC_OVER: + blend->rgb_src_factor = PIPE_BLENDFACTOR_SRC_ALPHA; + blend->alpha_src_factor = PIPE_BLENDFACTOR_ONE; + blend->rgb_dst_factor = PIPE_BLENDFACTOR_INV_SRC_ALPHA; + blend->alpha_dst_factor = PIPE_BLENDFACTOR_INV_SRC_ALPHA; + break; + case VG_BLEND_DST_OVER: + blend->rgb_src_factor = PIPE_BLENDFACTOR_INV_DST_ALPHA; + blend->alpha_src_factor = PIPE_BLENDFACTOR_INV_DST_ALPHA; + blend->rgb_dst_factor = PIPE_BLENDFACTOR_DST_ALPHA; + blend->alpha_dst_factor = PIPE_BLENDFACTOR_DST_ALPHA; + break; + case VG_BLEND_SRC_IN: + blend->rgb_src_factor = PIPE_BLENDFACTOR_DST_ALPHA; + blend->alpha_src_factor = PIPE_BLENDFACTOR_DST_ALPHA; + blend->rgb_dst_factor = PIPE_BLENDFACTOR_ZERO; + blend->alpha_dst_factor = PIPE_BLENDFACTOR_ZERO; + break; + case VG_BLEND_DST_IN: + blend->rgb_src_factor = PIPE_BLENDFACTOR_ZERO; + blend->alpha_src_factor = PIPE_BLENDFACTOR_ZERO; + blend->rgb_dst_factor = PIPE_BLENDFACTOR_SRC_ALPHA; + blend->alpha_dst_factor = PIPE_BLENDFACTOR_SRC_ALPHA; + break; + case VG_BLEND_MULTIPLY: + case VG_BLEND_SCREEN: + case VG_BLEND_DARKEN: + case VG_BLEND_LIGHTEN: + 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; + break; + case VG_BLEND_ADDITIVE: + blend->rgb_src_factor = PIPE_BLENDFACTOR_ONE; + blend->alpha_src_factor = PIPE_BLENDFACTOR_ONE; + blend->rgb_dst_factor = PIPE_BLENDFACTOR_ONE; + blend->alpha_dst_factor = PIPE_BLENDFACTOR_ONE; + break; + default: + assert(!"not implemented blend mode"); + } + cso_set_blend(ctx->cso_context, &ctx->state.g3d.blend); + } + if ((ctx->state.dirty & RASTERIZER_DIRTY)) { + struct pipe_rasterizer_state *raster = &ctx->state.g3d.rasterizer; + memset(raster, 0, sizeof(struct pipe_rasterizer_state)); + raster->gl_rasterization_rules = 1; + cso_set_rasterizer(ctx->cso_context, &ctx->state.g3d.rasterizer); + } + if ((ctx->state.dirty & VIEWPORT_DIRTY)) { + struct pipe_framebuffer_state *fb = &ctx->state.g3d.fb; + const VGint param_bytes = 8 * sizeof(VGfloat); + VGfloat vs_consts[8] = { + 2.f/fb->width, 2.f/fb->height, 1, 1, + -1, -1, 0, 0 + }; + struct pipe_constant_buffer *cbuf = &ctx->vs_const_buffer; + + vg_set_viewport(ctx, VEGA_Y0_BOTTOM); + + pipe_buffer_reference(&cbuf->buffer, NULL); + cbuf->buffer = pipe_buffer_create(ctx->pipe->screen, 16, + PIPE_BUFFER_USAGE_CONSTANT, + param_bytes); + + if (cbuf->buffer) { + st_no_flush_pipe_buffer_write(ctx, cbuf->buffer, + 0, param_bytes, vs_consts); + } + ctx->pipe->set_constant_buffer(ctx->pipe, PIPE_SHADER_VERTEX, 0, cbuf); + } + if ((ctx->state.dirty & VS_DIRTY)) { + cso_set_vertex_shader_handle(ctx->cso_context, + vg_plain_vs(ctx)); + } + + /* must be last because it renders to the depth buffer*/ + if ((ctx->state.dirty & DEPTH_STENCIL_DIRTY)) { + update_clip_state(ctx); + cso_set_depth_stencil_alpha(ctx->cso_context, &ctx->state.g3d.dsa); + } + + shader_set_masking(ctx->shader, ctx->state.vg.masking); + shader_set_image_mode(ctx->shader, ctx->state.vg.image_mode); + + ctx->state.dirty = NONE_DIRTY; +} + +VGboolean vg_object_is_valid(void *ptr, enum vg_object_type type) +{ + struct vg_object *obj = ptr; + if (ptr && is_aligned(obj) && obj->type == type) + return VG_TRUE; + else + return VG_FALSE; +} + +void vg_set_error(struct vg_context *ctx, + VGErrorCode code) +{ + /*vgGetError returns the oldest error code provided by + * an API call on the current context since the previous + * call to vgGetError on that context (or since the creation + of the context).*/ + if (ctx->_error == VG_NO_ERROR) + ctx->_error = code; +} + +void vg_prepare_blend_surface(struct vg_context *ctx) +{ + struct pipe_surface *dest_surface = NULL; + struct pipe_context *pipe = ctx->pipe; + struct st_framebuffer *stfb = ctx->draw_buffer; + struct st_renderbuffer *strb = stfb->strb; + + /* first finish all pending rendering */ + vgFinish(); + + dest_surface = pipe->screen->get_tex_surface(pipe->screen, + stfb->blend_texture, + 0, 0, 0, + PIPE_BUFFER_USAGE_GPU_WRITE); + /* flip it, because we want to use it as a sampler */ + util_blit_pixels_tex(ctx->blit, + strb->texture, + 0, strb->height, + strb->width, 0, + dest_surface, + 0, 0, + strb->width, strb->height, + 0.0, PIPE_TEX_MIPFILTER_NEAREST); + + if (dest_surface) + pipe_surface_reference(&dest_surface, NULL); + + /* make sure it's complete */ + vgFinish(); +} + + +void vg_prepare_blend_surface_from_mask(struct vg_context *ctx) +{ + struct pipe_surface *dest_surface = NULL; + struct pipe_context *pipe = ctx->pipe; + struct st_framebuffer *stfb = ctx->draw_buffer; + struct st_renderbuffer *strb = stfb->strb; + + vg_validate_state(ctx); + + /* first finish all pending rendering */ + vgFinish(); + + dest_surface = pipe->screen->get_tex_surface(pipe->screen, + stfb->blend_texture, + 0, 0, 0, + PIPE_BUFFER_USAGE_GPU_WRITE); + + /* flip it, because we want to use it as a sampler */ + util_blit_pixels_tex(ctx->blit, + stfb->alpha_mask, + 0, strb->height, + strb->width, 0, + dest_surface, + 0, 0, + strb->width, strb->height, + 0.0, PIPE_TEX_MIPFILTER_NEAREST); + + /* make sure it's complete */ + vgFinish(); + + if (dest_surface) + pipe_surface_reference(&dest_surface, NULL); +} + +void * vg_plain_vs(struct vg_context *ctx) +{ + if (!ctx->plain_vs) { + ctx->plain_vs = shader_create_from_text(ctx->pipe, + vs_plain_asm, + 200, + PIPE_SHADER_VERTEX); + } + + return ctx->plain_vs->driver; +} + + +void * vg_clear_vs(struct vg_context *ctx) +{ + if (!ctx->clear_vs) { + ctx->clear_vs = shader_create_from_text(ctx->pipe, + vs_clear_asm, + 200, + PIPE_SHADER_VERTEX); + } + + return ctx->clear_vs->driver; +} + +void * vg_texture_vs(struct vg_context *ctx) +{ + if (!ctx->texture_vs) { + ctx->texture_vs = shader_create_from_text(ctx->pipe, + vs_texture_asm, + 200, + PIPE_SHADER_VERTEX); + } + + return ctx->texture_vs->driver; +} + +void vg_set_viewport(struct vg_context *ctx, VegaOrientation orientation) +{ + struct pipe_viewport_state viewport; + struct pipe_framebuffer_state *fb = &ctx->state.g3d.fb; + VGfloat y_scale = (orientation == VEGA_Y0_BOTTOM) ? -2.f : 2.f; + + viewport.scale[0] = fb->width / 2.f; + viewport.scale[1] = fb->height / y_scale; + viewport.scale[2] = 1.0; + viewport.scale[3] = 1.0; + viewport.translate[0] = fb->width / 2.f; + viewport.translate[1] = fb->height / 2.f; + viewport.translate[2] = 0.0; + viewport.translate[3] = 0.0; + + cso_set_viewport(ctx->cso_context, &viewport); +} |