| /************************************************************************** |
| * |
| * 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 "mask.h" |
| |
| #include "path.h" |
| #include "image.h" |
| #include "shaders_cache.h" |
| #include "renderer.h" |
| #include "asm_util.h" |
| |
| #include "pipe/p_context.h" |
| #include "pipe/p_screen.h" |
| #include "util/u_inlines.h" |
| #include "util/u_format.h" |
| #include "util/u_memory.h" |
| #include "util/u_surface.h" |
| #include "util/u_sampler.h" |
| |
| struct vg_mask_layer { |
| struct vg_object base; |
| |
| VGint width; |
| VGint height; |
| |
| struct pipe_sampler_view *sampler_view; |
| }; |
| |
| static INLINE VGboolean |
| intersect_rectangles(VGint dwidth, VGint dheight, |
| VGint swidth, VGint sheight, |
| VGint tx, VGint ty, |
| VGint twidth, VGint theight, |
| VGint *offsets, |
| VGint *location) |
| { |
| if (tx + twidth <= 0 || tx >= dwidth) |
| return VG_FALSE; |
| if (ty + theight <= 0 || ty >= dheight) |
| return VG_FALSE; |
| |
| offsets[0] = 0; |
| offsets[1] = 0; |
| location[0] = tx; |
| location[1] = ty; |
| |
| if (tx < 0) { |
| offsets[0] -= tx; |
| location[0] = 0; |
| |
| location[2] = MIN2(tx + swidth, MIN2(dwidth, tx + twidth)); |
| offsets[2] = location[2]; |
| } else { |
| offsets[2] = MIN2(twidth, MIN2(dwidth - tx, swidth )); |
| location[2] = offsets[2]; |
| } |
| |
| if (ty < 0) { |
| offsets[1] -= ty; |
| location[1] = 0; |
| |
| location[3] = MIN2(ty + sheight, MIN2(dheight, ty + theight)); |
| offsets[3] = location[3]; |
| } else { |
| offsets[3] = MIN2(theight, MIN2(dheight - ty, sheight)); |
| location[3] = offsets[3]; |
| } |
| |
| return VG_TRUE; |
| } |
| |
| #if DEBUG_MASKS |
| static void read_alpha_mask(void * data, VGint dataStride, |
| VGImageFormat dataFormat, |
| VGint sx, VGint sy, |
| VGint width, VGint height) |
| { |
| struct vg_context *ctx = vg_current_context(); |
| struct pipe_context *pipe = ctx->pipe; |
| |
| struct st_framebuffer *stfb = ctx->draw_buffer; |
| struct st_renderbuffer *strb = stfb->alpha_mask; |
| |
| VGfloat temp[VEGA_MAX_IMAGE_WIDTH][4]; |
| VGfloat *df = (VGfloat*)temp; |
| VGint y = (stfb->height - sy) - 1, yStep = -1; |
| VGint i; |
| VGubyte *dst = (VGubyte *)data; |
| VGint xoffset = 0, yoffset = 0; |
| |
| if (sx < 0) { |
| xoffset = -sx; |
| xoffset *= _vega_size_for_format(dataFormat); |
| width += sx; |
| sx = 0; |
| } |
| if (sy < 0) { |
| yoffset = -sy; |
| height += sy; |
| sy = 0; |
| y = (stfb->height - sy) - 1; |
| yoffset *= dataStride; |
| } |
| |
| { |
| struct pipe_surface *surf; |
| |
| surf = pipe->create_surface(pipe, strb->texture, 0, 0, 0, |
| PIPE_BIND_TRANSFER_READ); |
| |
| /* Do a row at a time to flip image data vertically */ |
| for (i = 0; i < height; i++) { |
| #if 0 |
| debug_printf("%d-%d == %d\n", sy, height, y); |
| #endif |
| pipe_get_tile_rgba(surf, sx, y, width, 1, df); |
| y += yStep; |
| _vega_pack_rgba_span_float(ctx, width, temp, dataFormat, |
| dst + yoffset + xoffset); |
| dst += dataStride; |
| } |
| |
| pipe_surface_reference(&surf, NULL); |
| } |
| } |
| |
| void save_alpha_to_file(const char *filename) |
| { |
| struct vg_context *ctx = vg_current_context(); |
| struct st_framebuffer *stfb = ctx->draw_buffer; |
| VGint *data; |
| int i, j; |
| |
| data = malloc(sizeof(int) * stfb->width * stfb->height); |
| read_alpha_mask(data, stfb->width * sizeof(int), |
| VG_sRGBA_8888, |
| 0, 0, stfb->width, stfb->height); |
| fprintf(stderr, "/*---------- start */\n"); |
| fprintf(stderr, "const int image_width = %d;\n", |
| stfb->width); |
| fprintf(stderr, "const int image_height = %d;\n", |
| stfb->height); |
| fprintf(stderr, "const int image_data = {\n"); |
| for (i = 0; i < stfb->height; ++i) { |
| for (j = 0; j < stfb->width; ++j) { |
| int rgba = data[i * stfb->height + j]; |
| int argb = 0; |
| argb = (rgba >> 8); |
| argb |= ((rgba & 0xff) << 24); |
| fprintf(stderr, "0x%x, ", argb); |
| } |
| fprintf(stderr, "\n"); |
| } |
| fprintf(stderr, "};\n"); |
| fprintf(stderr, "/*---------- end */\n"); |
| } |
| #endif |
| |
| /* setup mask shader */ |
| static void *setup_mask_operation(VGMaskOperation operation) |
| { |
| struct vg_context *ctx = vg_current_context(); |
| void *shader = 0; |
| |
| switch (operation) { |
| case VG_UNION_MASK: { |
| if (!ctx->mask.union_fs) { |
| ctx->mask.union_fs = shader_create_from_text(ctx->pipe, |
| union_mask_asm, |
| 200, |
| PIPE_SHADER_FRAGMENT); |
| } |
| shader = ctx->mask.union_fs->driver; |
| } |
| break; |
| case VG_INTERSECT_MASK: { |
| if (!ctx->mask.intersect_fs) { |
| ctx->mask.intersect_fs = shader_create_from_text(ctx->pipe, |
| intersect_mask_asm, |
| 200, |
| PIPE_SHADER_FRAGMENT); |
| } |
| shader = ctx->mask.intersect_fs->driver; |
| } |
| break; |
| case VG_SUBTRACT_MASK: { |
| if (!ctx->mask.subtract_fs) { |
| ctx->mask.subtract_fs = shader_create_from_text(ctx->pipe, |
| subtract_mask_asm, |
| 200, |
| PIPE_SHADER_FRAGMENT); |
| } |
| shader = ctx->mask.subtract_fs->driver; |
| } |
| break; |
| case VG_SET_MASK: { |
| if (!ctx->mask.set_fs) { |
| ctx->mask.set_fs = shader_create_from_text(ctx->pipe, |
| set_mask_asm, |
| 200, |
| PIPE_SHADER_FRAGMENT); |
| } |
| shader = ctx->mask.set_fs->driver; |
| } |
| break; |
| default: |
| assert(0); |
| break; |
| } |
| |
| return shader; |
| } |
| |
| static void mask_resource_fill(struct pipe_resource *dst, |
| int x, int y, int width, int height, |
| VGfloat coverage) |
| { |
| struct vg_context *ctx = vg_current_context(); |
| VGfloat fs_consts[12] = { |
| 0.0f, 0.0f, 0.0f, 0.0f, /* not used */ |
| 0.0f, 0.0f, 0.0f, 0.0f, /* not used */ |
| 0.0f, 0.0f, 0.0f, coverage /* color */ |
| }; |
| void *fs; |
| |
| if (x < 0) { |
| width += x; |
| x = 0; |
| } |
| if (y < 0) { |
| height += y; |
| y = 0; |
| } |
| |
| fs = shaders_cache_fill(ctx->sc, VEGA_SOLID_FILL_SHADER); |
| |
| if (renderer_filter_begin(ctx->renderer, dst, VG_FALSE, ~0, |
| NULL, NULL, 0, fs, (const void *) fs_consts, sizeof(fs_consts))) { |
| renderer_filter(ctx->renderer, x, y, width, height, 0, 0, 0, 0); |
| renderer_filter_end(ctx->renderer); |
| } |
| |
| #if DEBUG_MASKS |
| save_alpha_to_file(0); |
| #endif |
| } |
| |
| |
| static void mask_using_texture(struct pipe_sampler_view *sampler_view, |
| VGboolean is_layer, |
| VGMaskOperation operation, |
| VGint x, VGint y, |
| VGint width, VGint height) |
| { |
| struct vg_context *ctx = vg_current_context(); |
| struct pipe_sampler_view *dst_view = vg_get_surface_mask(ctx); |
| struct pipe_resource *dst = dst_view->texture; |
| struct pipe_resource *texture = sampler_view->texture; |
| const struct pipe_sampler_state *samplers[2]; |
| struct pipe_sampler_view *views[2]; |
| struct pipe_sampler_state sampler; |
| VGint offsets[4], loc[4]; |
| const VGfloat ones[4] = {1.f, 1.f, 1.f, 1.f}; |
| void *fs; |
| |
| if (!intersect_rectangles(dst->width0, dst->height0, |
| texture->width0, texture->height0, |
| x, y, width, height, |
| offsets, loc)) |
| return; |
| #if 0 |
| debug_printf("Offset = [%d, %d, %d, %d]\n", offsets[0], |
| offsets[1], offsets[2], offsets[3]); |
| debug_printf("Locati = [%d, %d, %d, %d]\n", loc[0], |
| loc[1], loc[2], loc[3]); |
| #endif |
| |
| |
| sampler = ctx->mask.sampler; |
| sampler.normalized_coords = 1; |
| samplers[0] = &sampler; |
| views[0] = sampler_view; |
| |
| /* prepare our blend surface */ |
| samplers[1] = &ctx->mask.sampler; |
| views[1] = vg_prepare_blend_surface_from_mask(ctx); |
| |
| fs = setup_mask_operation(operation); |
| |
| if (renderer_filter_begin(ctx->renderer, dst, VG_FALSE, |
| ~0, samplers, views, 2, fs, (const void *) ones, sizeof(ones))) { |
| /* layer should be flipped when used as a texture */ |
| if (is_layer) { |
| offsets[1] += offsets[3]; |
| offsets[3] = -offsets[3]; |
| } |
| renderer_filter(ctx->renderer, |
| loc[0], loc[1], loc[2], loc[3], |
| offsets[0], offsets[1], offsets[2], offsets[3]); |
| renderer_filter_end(ctx->renderer); |
| } |
| } |
| |
| |
| #ifdef OPENVG_VERSION_1_1 |
| |
| struct vg_mask_layer * mask_layer_create(VGint width, VGint height) |
| { |
| struct vg_context *ctx = vg_current_context(); |
| struct vg_mask_layer *mask = 0; |
| |
| mask = CALLOC_STRUCT(vg_mask_layer); |
| vg_init_object(&mask->base, ctx, VG_OBJECT_MASK); |
| mask->width = width; |
| mask->height = height; |
| |
| { |
| struct pipe_resource pt; |
| struct pipe_context *pipe = ctx->pipe; |
| struct pipe_screen *screen = ctx->pipe->screen; |
| struct pipe_sampler_view view_templ; |
| struct pipe_sampler_view *view = NULL; |
| struct pipe_resource *texture; |
| |
| memset(&pt, 0, sizeof(pt)); |
| pt.target = PIPE_TEXTURE_2D; |
| pt.format = PIPE_FORMAT_B8G8R8A8_UNORM; |
| pt.last_level = 0; |
| pt.width0 = width; |
| pt.height0 = height; |
| pt.depth0 = 1; |
| pt.array_size = 1; |
| pt.bind = PIPE_BIND_SAMPLER_VIEW; |
| |
| texture = screen->resource_create(screen, &pt); |
| |
| if (texture) { |
| u_sampler_view_default_template(&view_templ, texture, texture->format); |
| view = pipe->create_sampler_view(pipe, texture, &view_templ); |
| } |
| pipe_resource_reference(&texture, NULL); |
| mask->sampler_view = view; |
| } |
| |
| vg_context_add_object(ctx, &mask->base); |
| |
| return mask; |
| } |
| |
| void mask_layer_destroy(struct vg_mask_layer *layer) |
| { |
| struct vg_context *ctx = vg_current_context(); |
| |
| vg_context_remove_object(ctx, &layer->base); |
| pipe_sampler_view_reference(&layer->sampler_view, NULL); |
| FREE(layer); |
| } |
| |
| void mask_layer_fill(struct vg_mask_layer *layer, |
| VGint x, VGint y, |
| VGint width, VGint height, |
| VGfloat value) |
| { |
| mask_resource_fill(layer->sampler_view->texture, |
| x, y, width, height, value); |
| } |
| |
| void mask_copy(struct vg_mask_layer *layer, |
| VGint sx, VGint sy, |
| VGint dx, VGint dy, |
| VGint width, VGint height) |
| { |
| struct vg_context *ctx = vg_current_context(); |
| struct pipe_sampler_view *src = vg_get_surface_mask(ctx); |
| struct pipe_surface *surf, surf_tmpl; |
| |
| /* get the destination surface */ |
| u_surface_default_template(&surf_tmpl, layer->sampler_view->texture, |
| PIPE_BIND_RENDER_TARGET); |
| surf = ctx->pipe->create_surface(ctx->pipe, layer->sampler_view->texture, |
| &surf_tmpl); |
| if (surf && renderer_copy_begin(ctx->renderer, surf, VG_FALSE, src)) { |
| /* layer should be flipped when used as a texture */ |
| sy += height; |
| height = -height; |
| |
| renderer_copy(ctx->renderer, |
| dx, dy, width, height, |
| sx, sy, width, height); |
| renderer_copy_end(ctx->renderer); |
| } |
| |
| pipe_surface_reference(&surf, NULL); |
| } |
| |
| static void mask_layer_render_to(struct vg_mask_layer *layer, |
| struct path *path, |
| VGbitfield paint_modes) |
| { |
| struct vg_context *ctx = vg_current_context(); |
| struct pipe_context *pipe = ctx->pipe; |
| struct pipe_sampler_view *view = vg_get_surface_mask(ctx); |
| struct matrix *mat = &ctx->state.vg.path_user_to_surface_matrix; |
| struct pipe_surface *surf, surf_tmpl; |
| u_surface_default_template(&surf_tmpl, view->texture, |
| PIPE_BIND_RENDER_TARGET); |
| surf = pipe->create_surface(pipe, view->texture, &surf_tmpl); |
| |
| renderer_validate_for_mask_rendering(ctx->renderer, surf, mat); |
| |
| if (paint_modes & VG_FILL_PATH) { |
| path_fill(path); |
| } |
| |
| if (paint_modes & VG_STROKE_PATH){ |
| path_stroke(path); |
| } |
| |
| pipe_surface_reference(&surf, NULL); |
| } |
| |
| void mask_render_to(struct path *path, |
| VGbitfield paint_modes, |
| VGMaskOperation operation) |
| { |
| struct vg_context *ctx = vg_current_context(); |
| struct st_framebuffer *stfb = ctx->draw_buffer; |
| struct vg_mask_layer *temp_layer; |
| VGint width, height; |
| |
| width = stfb->width; |
| height = stfb->height; |
| |
| temp_layer = mask_layer_create(width, height); |
| mask_layer_fill(temp_layer, 0, 0, width, height, 0.0f); |
| |
| mask_layer_render_to(temp_layer, path, paint_modes); |
| |
| mask_using_layer(temp_layer, operation, 0, 0, width, height); |
| |
| mask_layer_destroy(temp_layer); |
| } |
| |
| void mask_using_layer(struct vg_mask_layer *layer, |
| VGMaskOperation operation, |
| VGint x, VGint y, |
| VGint width, VGint height) |
| { |
| mask_using_texture(layer->sampler_view, VG_TRUE, operation, |
| x, y, width, height); |
| } |
| |
| VGint mask_layer_width(struct vg_mask_layer *layer) |
| { |
| return layer->width; |
| } |
| |
| VGint mask_layer_height(struct vg_mask_layer *layer) |
| { |
| return layer->height; |
| } |
| |
| |
| #endif |
| |
| void mask_using_image(struct vg_image *image, |
| VGMaskOperation operation, |
| VGint x, VGint y, |
| VGint width, VGint height) |
| { |
| mask_using_texture(image->sampler_view, VG_FALSE, operation, |
| x, y, width, height); |
| } |
| |
| void mask_fill(VGint x, VGint y, VGint width, VGint height, |
| VGfloat value) |
| { |
| struct vg_context *ctx = vg_current_context(); |
| struct pipe_sampler_view *view = vg_get_surface_mask(ctx); |
| |
| #if DEBUG_MASKS |
| debug_printf("mask_fill(%d, %d, %d, %d) with rgba(%f, %f, %f, %f)\n", |
| x, y, width, height, |
| 0.0f, 0.0f, 0.0f, value); |
| #endif |
| |
| mask_resource_fill(view->texture, x, y, width, height, value); |
| } |
| |
| VGint mask_bind_samplers(struct pipe_sampler_state **samplers, |
| struct pipe_sampler_view **sampler_views) |
| { |
| struct vg_context *ctx = vg_current_context(); |
| |
| if (ctx->state.vg.masking) { |
| samplers[1] = &ctx->mask.sampler; |
| sampler_views[1] = vg_get_surface_mask(ctx); |
| return 1; |
| } else |
| return 0; |
| } |
