diff options
Diffstat (limited to 'src/gallium/state_trackers/vega/mask.c')
| -rw-r--r-- | src/gallium/state_trackers/vega/mask.c | 690 |
1 files changed, 690 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/vega/mask.c b/src/gallium/state_trackers/vega/mask.c new file mode 100644 index 0000000000..24650a37d5 --- /dev/null +++ b/src/gallium/state_trackers/vega/mask.c @@ -0,0 +1,690 @@ +/************************************************************************** + * + * 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 "st_inlines.h" + +#include "pipe/p_context.h" +#include "pipe/p_screen.h" +#include "pipe/p_inlines.h" +#include "util/u_memory.h" + +struct vg_mask_layer { + struct vg_object base; + + VGint width; + VGint height; + + struct pipe_texture *texture; +}; + +static INLINE struct pipe_surface * +alpha_mask_surface(struct vg_context *ctx, int usage) +{ + struct pipe_screen *screen = ctx->pipe->screen; + struct st_framebuffer *stfb = ctx->draw_buffer; + return screen->get_tex_surface(screen, + stfb->alpha_mask, + 0, 0, 0, + usage); +} + +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 pipe_screen *screen = pipe->screen; + + struct st_framebuffer *stfb = ctx->draw_buffer; + struct st_renderbuffer *strb = stfb->alpha_mask; + struct pipe_framebuffer_state *fb = &ctx->state.g3d.fb; + + VGfloat temp[VEGA_MAX_IMAGE_WIDTH][4]; + VGfloat *df = (VGfloat*)temp; + VGint y = (fb->height - sy) - 1, yStep = -1; + VGint i; + VGubyte *dst = (VGubyte *)data; + VGint xoffset = 0, yoffset = 0; + + /* make sure rendering has completed */ + pipe->flush(pipe, PIPE_FLUSH_RENDER_CACHE, NULL); + 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 = (fb->height - sy) - 1; + yoffset *= dataStride; + } + + { + struct pipe_surface *surf; + + surf = screen->get_tex_surface(screen, strb->texture, 0, 0, 0, + PIPE_BUFFER_USAGE_CPU_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 pipe_framebuffer_state *fb = &ctx->state.g3d.fb; + VGint *data; + int i, j; + + data = malloc(sizeof(int) * fb->width * fb->height); + read_alpha_mask(data, fb->width * sizeof(int), + VG_sRGBA_8888, + 0, 0, fb->width, fb->height); + fprintf(stderr, "/*---------- start */\n"); + fprintf(stderr, "const int image_width = %d;\n", + fb->width); + fprintf(stderr, "const int image_height = %d;\n", + fb->height); + fprintf(stderr, "const int image_data = {\n"); + for (i = 0; i < fb->height; ++i) { + for (j = 0; j < fb->width; ++j) { + int rgba = data[i * fb->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 + +static void setup_mask_framebuffer(struct pipe_surface *surf, + VGint surf_width, VGint surf_height) +{ + struct vg_context *ctx = vg_current_context(); + struct pipe_framebuffer_state fb; + + memset(&fb, 0, sizeof(fb)); + fb.width = surf_width; + fb.height = surf_height; + fb.nr_cbufs = 1; + fb.cbufs[0] = surf; + { + VGint i; + for (i = 1; i < PIPE_MAX_COLOR_BUFS; ++i) + fb.cbufs[i] = 0; + } + cso_set_framebuffer(ctx->cso_context, &fb); +} + + +/* setup shader constants */ +static void setup_mask_operation(VGMaskOperation operation) +{ + struct vg_context *ctx = vg_current_context(); + struct pipe_constant_buffer *cbuf = &ctx->mask.cbuf; + const VGint param_bytes = 4 * sizeof(VGfloat); + const VGfloat ones[4] = {1.f, 1.f, 1.f, 1.f}; + void *shader = 0; + + /* We always need to get a new buffer, to keep the drivers simple and + * avoid gratuitous rendering synchronization. + */ + pipe_buffer_reference(&cbuf->buffer, NULL); + + cbuf->buffer = pipe_buffer_create(ctx->pipe->screen, 1, + PIPE_BUFFER_USAGE_CONSTANT, + param_bytes); + if (cbuf->buffer) { + st_no_flush_pipe_buffer_write(ctx, cbuf->buffer, + 0, param_bytes, ones); + } + + ctx->pipe->set_constant_buffer(ctx->pipe, PIPE_SHADER_FRAGMENT, 0, cbuf); + 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; + } + cso_set_fragment_shader_handle(ctx->cso_context, shader); +} + +static void setup_mask_samplers(struct pipe_texture *umask) +{ + struct vg_context *ctx = vg_current_context(); + struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS]; + struct pipe_texture *textures[PIPE_MAX_SAMPLERS]; + struct st_framebuffer *fb_buffers = ctx->draw_buffer; + struct pipe_texture *uprev = NULL; + struct pipe_sampler_state sampler; + + uprev = fb_buffers->blend_texture; + sampler = ctx->mask.sampler; + sampler.normalized_coords = 1; + + samplers[0] = NULL; + samplers[1] = NULL; + samplers[2] = NULL; + textures[0] = NULL; + textures[1] = NULL; + textures[2] = NULL; + + samplers[0] = &sampler; + samplers[1] = &ctx->mask.sampler; + + textures[0] = umask; + textures[1] = uprev; + + cso_set_samplers(ctx->cso_context, 2, + (const struct pipe_sampler_state **)samplers); + cso_set_sampler_textures(ctx->cso_context, 2, textures); +} + + +/* setup shader constants */ +static void setup_mask_fill(const VGfloat color[4]) +{ + struct vg_context *ctx = vg_current_context(); + struct pipe_constant_buffer *cbuf = &ctx->mask.cbuf; + const VGint param_bytes = 4 * sizeof(VGfloat); + + /* We always need to get a new buffer, to keep the drivers simple and + * avoid gratuitous rendering synchronization. + */ + pipe_buffer_reference(&cbuf->buffer, NULL); + + cbuf->buffer = pipe_buffer_create(ctx->pipe->screen, 1, + PIPE_BUFFER_USAGE_CONSTANT, + param_bytes); + if (cbuf->buffer) { + st_no_flush_pipe_buffer_write(ctx, cbuf->buffer, 0, param_bytes, color); + } + + ctx->pipe->set_constant_buffer(ctx->pipe, PIPE_SHADER_FRAGMENT, 0, cbuf); + cso_set_fragment_shader_handle(ctx->cso_context, + shaders_cache_fill(ctx->sc, + VEGA_SOLID_FILL_SHADER)); +} + +static void setup_mask_viewport() +{ + struct vg_context *ctx = vg_current_context(); + vg_set_viewport(ctx, VEGA_Y0_TOP); +} + +static void setup_mask_blend() +{ + struct vg_context *ctx = vg_current_context(); + + struct pipe_blend_state 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; + 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; + + cso_set_blend(ctx->cso_context, &blend); +} + + +static void surface_fill(struct pipe_surface *surf, + int surf_width, int surf_height, + int x, int y, int width, int height, + const VGfloat color[4]) +{ + struct vg_context *ctx = vg_current_context(); + + if (x < 0) { + width += x; + x = 0; + } + if (y < 0) { + height += y; + y = 0; + } + + cso_save_framebuffer(ctx->cso_context); + cso_save_blend(ctx->cso_context); + cso_save_fragment_shader(ctx->cso_context); + cso_save_viewport(ctx->cso_context); + + setup_mask_blend(); + setup_mask_fill(color); + setup_mask_framebuffer(surf, surf_width, surf_height); + setup_mask_viewport(); + + renderer_draw_quad(ctx->renderer, x, y, + x + width, y + height, 0.0f/*depth should be disabled*/); + + + /* make sure rendering has completed */ + ctx->pipe->flush(ctx->pipe, + PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_FRAME, + NULL); + +#if DEBUG_MASKS + save_alpha_to_file(0); +#endif + + cso_restore_blend(ctx->cso_context); + cso_restore_framebuffer(ctx->cso_context); + cso_restore_fragment_shader(ctx->cso_context); + cso_restore_viewport(ctx->cso_context); +} + + +static void mask_using_texture(struct pipe_texture *texture, + VGMaskOperation operation, + VGint x, VGint y, + VGint width, VGint height) +{ + struct vg_context *ctx = vg_current_context(); + struct pipe_surface *surface = + alpha_mask_surface(ctx, PIPE_BUFFER_USAGE_GPU_WRITE); + VGint offsets[4], loc[4]; + + if (!surface) + return; + if (!intersect_rectangles(surface->width, surface->height, + texture->width[0], texture->height[0], + 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 + + /* prepare our blend surface */ + vg_prepare_blend_surface_from_mask(ctx); + + cso_save_samplers(ctx->cso_context); + cso_save_sampler_textures(ctx->cso_context); + cso_save_framebuffer(ctx->cso_context); + cso_save_blend(ctx->cso_context); + cso_save_fragment_shader(ctx->cso_context); + cso_save_viewport(ctx->cso_context); + + setup_mask_samplers(texture); + setup_mask_blend(); + setup_mask_operation(operation); + setup_mask_framebuffer(surface, surface->width, surface->height); + setup_mask_viewport(); + + /* render the quad to propagate the rendering from stencil */ + renderer_draw_texture(ctx->renderer, texture, + offsets[0], offsets[1], + offsets[0] + offsets[2], offsets[1] + offsets[3], + loc[0], loc[1], loc[0] + loc[2], loc[1] + loc[3]); + + /* make sure rendering has completed */ + ctx->pipe->flush(ctx->pipe, PIPE_FLUSH_RENDER_CACHE, NULL); + cso_restore_blend(ctx->cso_context); + cso_restore_framebuffer(ctx->cso_context); + cso_restore_fragment_shader(ctx->cso_context); + cso_restore_samplers(ctx->cso_context); + cso_restore_sampler_textures(ctx->cso_context); + cso_restore_viewport(ctx->cso_context); + + pipe_surface_reference(&surface, NULL); +} + + +#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_texture pt; + struct pipe_screen *screen = ctx->pipe->screen; + + memset(&pt, 0, sizeof(pt)); + pt.target = PIPE_TEXTURE_2D; + pt.format = PIPE_FORMAT_A8R8G8B8_UNORM; + pf_get_block(PIPE_FORMAT_A8R8G8B8_UNORM, &pt.block); + pt.last_level = 0; + pt.width[0] = width; + pt.height[0] = height; + pt.depth[0] = 1; + pt.tex_usage = PIPE_TEXTURE_USAGE_SAMPLER; + pt.compressed = 0; + + mask->texture = screen->texture_create(screen, &pt); + } + + vg_context_add_object(ctx, VG_OBJECT_MASK, mask); + + return mask; +} + +void mask_layer_destroy(struct vg_mask_layer *layer) +{ + struct vg_context *ctx = vg_current_context(); + + vg_context_remove_object(ctx, VG_OBJECT_MASK, layer); + pipe_texture_release(&layer->texture); + free(layer); +} + +void mask_layer_fill(struct vg_mask_layer *layer, + VGint x, VGint y, + VGint width, VGint height, + VGfloat value) +{ + struct vg_context *ctx = vg_current_context(); + VGfloat alpha_color[4] = {0, 0, 0, 0}; + struct pipe_surface *surface; + + alpha_color[3] = value; + + surface = ctx->pipe->screen->get_tex_surface( + ctx->pipe->screen, layer->texture, + 0, 0, 0, + PIPE_BUFFER_USAGE_GPU_WRITE); + + surface_fill(surface, + layer->width, layer->height, + x, y, width, height, alpha_color); + + ctx->pipe->screen->tex_surface_release(ctx->pipe->screen, &surface); +} + +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 st_framebuffer *fb_buffers = ctx->draw_buffer; + + renderer_copy_texture(ctx->renderer, + layer->texture, + sx, sy, + sx + width, sy + height, + fb_buffers->alpha_mask, + dx, dy, + dx + width, dy + height); +} + +static void mask_layer_render_to(struct vg_mask_layer *layer, + struct path *path, + VGbitfield paint_modes) +{ + struct vg_context *ctx = vg_current_context(); + const VGfloat fill_color[4] = {1.f, 1.f, 1.f, 1.f}; + struct pipe_screen *screen = ctx->pipe->screen; + struct pipe_surface *surface; + + surface = screen->get_tex_surface(screen, layer->texture, 0, 0, 0, + PIPE_BUFFER_USAGE_GPU_WRITE); + + cso_save_framebuffer(ctx->cso_context); + cso_save_fragment_shader(ctx->cso_context); + cso_save_viewport(ctx->cso_context); + + setup_mask_blend(); + setup_mask_fill(fill_color); + setup_mask_framebuffer(surface, layer->width, layer->height); + setup_mask_viewport(); + + if (paint_modes & VG_FILL_PATH) { + struct matrix *mat = &ctx->state.vg.path_user_to_surface_matrix; + path_fill(path, mat); + } + + if (paint_modes & VG_STROKE_PATH){ + path_stroke(path); + } + + + /* make sure rendering has completed */ + ctx->pipe->flush(ctx->pipe, PIPE_FLUSH_RENDER_CACHE, NULL); + + cso_restore_framebuffer(ctx->cso_context); + cso_restore_fragment_shader(ctx->cso_context); + cso_restore_viewport(ctx->cso_context); + ctx->state.dirty |= BLEND_DIRTY; + + screen->tex_surface_release(ctx->pipe->screen, &surface); +} + +void mask_render_to(struct path *path, + VGbitfield paint_modes, + VGMaskOperation operation) +{ + struct vg_context *ctx = vg_current_context(); + struct st_framebuffer *fb_buffers = ctx->draw_buffer; + struct vg_mask_layer *temp_layer; + VGint width, height; + + width = fb_buffers->alpha_mask->width[0]; + height = fb_buffers->alpha_mask->width[0]; + + temp_layer = mask_layer_create(width, height); + + mask_layer_render_to(temp_layer, path, paint_modes); + + mask_using_layer(temp_layer, 0, 0, width, height, + operation); + + 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->texture, 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->texture, 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(); + VGfloat alpha_color[4] = {.0f, .0f, .0f, value}; + struct pipe_surface *surf = alpha_mask_surface( + ctx, PIPE_BUFFER_USAGE_GPU_WRITE); + +#if DEBUG_MASKS + debug_printf("mask_fill(%d, %d, %d, %d) with rgba(%f, %f, %f, %f)\n", + x, y, width, height, + alpha_color[0], alpha_color[1], + alpha_color[2], alpha_color[3]); + debug_printf("XXX %f === %f \n", + alpha_color[3], value); +#endif + + surface_fill(surf, surf->width, surf->height, + x, y, width, height, alpha_color); + + pipe_surface_reference(&surf, NULL); +} + +VGint mask_bind_samplers(struct pipe_sampler_state **samplers, + struct pipe_texture **textures) +{ + struct vg_context *ctx = vg_current_context(); + + if (ctx->state.vg.masking) { + struct st_framebuffer *fb_buffers = ctx->draw_buffer; + + samplers[1] = &ctx->mask.sampler; + textures[1] = fb_buffers->alpha_mask; + return 1; + } else + return 0; +} |