| /* |
| * Mesa 3-D graphics library |
| * Version: 7.9 |
| * |
| * Copyright (C) 2010 LunarG Inc. |
| * |
| * 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, sublicense, |
| * 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 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 NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS 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. |
| * |
| * Authors: |
| * Chia-I Wu <olv@lunarg.com> |
| */ |
| |
| #include "util/u_inlines.h" |
| #include "util/u_memory.h" |
| #include "pipe/p_screen.h" |
| #include "pipe/p_context.h" |
| #include "pipe/p_state.h" |
| |
| #include "native_helper.h" |
| |
| struct resource_surface { |
| struct pipe_screen *screen; |
| enum pipe_format format; |
| uint bind; |
| |
| struct pipe_resource *resources[NUM_NATIVE_ATTACHMENTS]; |
| struct pipe_surface *present_surfaces[NUM_NATIVE_ATTACHMENTS]; |
| uint resource_mask; |
| uint width, height; |
| }; |
| |
| struct resource_surface * |
| resource_surface_create(struct pipe_screen *screen, |
| enum pipe_format format, uint bind) |
| { |
| struct resource_surface *rsurf = CALLOC_STRUCT(resource_surface); |
| |
| if (rsurf) { |
| rsurf->screen = screen; |
| rsurf->format = format; |
| rsurf->bind = bind; |
| } |
| |
| return rsurf; |
| } |
| |
| static void |
| resource_surface_free_resources(struct resource_surface *rsurf) |
| { |
| if (rsurf->resource_mask) { |
| int i; |
| |
| for (i = 0; i < NUM_NATIVE_ATTACHMENTS; i++) { |
| if (rsurf->present_surfaces[i]) |
| pipe_surface_reference(&rsurf->present_surfaces[i], NULL); |
| if (rsurf->resources[i]) |
| pipe_resource_reference(&rsurf->resources[i], NULL); |
| } |
| rsurf->resource_mask = 0x0; |
| } |
| } |
| |
| void |
| resource_surface_destroy(struct resource_surface *rsurf) |
| { |
| resource_surface_free_resources(rsurf); |
| FREE(rsurf); |
| } |
| |
| boolean |
| resource_surface_set_size(struct resource_surface *rsurf, |
| uint width, uint height) |
| { |
| boolean changed = FALSE; |
| |
| if (rsurf->width != width || rsurf->height != height) { |
| resource_surface_free_resources(rsurf); |
| rsurf->width = width; |
| rsurf->height = height; |
| changed = TRUE; |
| } |
| |
| return changed; |
| } |
| |
| void |
| resource_surface_get_size(struct resource_surface *rsurf, |
| uint *width, uint *height) |
| { |
| if (width) |
| *width = rsurf->width; |
| if (height) |
| *height = rsurf->height; |
| } |
| |
| boolean |
| resource_surface_add_resources(struct resource_surface *rsurf, |
| uint resource_mask) |
| { |
| struct pipe_resource templ; |
| int i; |
| |
| resource_mask &= ~rsurf->resource_mask; |
| if (!resource_mask) |
| return TRUE; |
| |
| if (!rsurf->width || !rsurf->height) |
| return FALSE; |
| |
| memset(&templ, 0, sizeof(templ)); |
| templ.target = PIPE_TEXTURE_2D; |
| templ.format = rsurf->format; |
| templ.bind = rsurf->bind; |
| templ.width0 = rsurf->width; |
| templ.height0 = rsurf->height; |
| templ.depth0 = 1; |
| |
| for (i = 0; i < NUM_NATIVE_ATTACHMENTS; i++) { |
| if (resource_mask & (1 <<i)) { |
| assert(!rsurf->resources[i]); |
| |
| rsurf->resources[i] = |
| rsurf->screen->resource_create(rsurf->screen, &templ); |
| if (rsurf->resources[i]) |
| rsurf->resource_mask |= 1 << i; |
| } |
| } |
| |
| return ((rsurf->resource_mask & resource_mask) == resource_mask); |
| } |
| |
| |
| void |
| resource_surface_get_resources(struct resource_surface *rsurf, |
| struct pipe_resource **resources, |
| uint resource_mask) |
| { |
| int i; |
| |
| for (i = 0; i < NUM_NATIVE_ATTACHMENTS; i++) { |
| if (resource_mask & (1 << i)) { |
| resources[i] = NULL; |
| pipe_resource_reference(&resources[i], rsurf->resources[i]); |
| } |
| } |
| } |
| |
| struct pipe_resource * |
| resource_surface_get_single_resource(struct resource_surface *rsurf, |
| enum native_attachment which) |
| { |
| struct pipe_resource *pres = NULL; |
| pipe_resource_reference(&pres, rsurf->resources[which]); |
| return pres; |
| } |
| |
| static INLINE void |
| pointer_swap(const void **p1, const void **p2) |
| { |
| const void *tmp = *p1; |
| *p1 = *p2; |
| *p2 = tmp; |
| } |
| |
| void |
| resource_surface_swap_buffers(struct resource_surface *rsurf, |
| enum native_attachment buf1, |
| enum native_attachment buf2, |
| boolean only_if_exist) |
| { |
| const uint buf1_bit = 1 << buf1; |
| const uint buf2_bit = 1 << buf2; |
| uint mask; |
| |
| if (only_if_exist && !(rsurf->resources[buf1] && rsurf->resources[buf2])) |
| return; |
| |
| pointer_swap((const void **) &rsurf->resources[buf1], |
| (const void **) &rsurf->resources[buf2]); |
| pointer_swap((const void **) &rsurf->present_surfaces[buf1], |
| (const void **) &rsurf->present_surfaces[buf2]); |
| |
| /* swap mask bits */ |
| mask = rsurf->resource_mask & ~(buf1_bit | buf2_bit); |
| if (rsurf->resource_mask & buf1_bit) |
| mask |= buf2_bit; |
| if (rsurf->resource_mask & buf2_bit) |
| mask |= buf1_bit; |
| |
| rsurf->resource_mask = mask; |
| } |
| |
| boolean |
| resource_surface_present(struct resource_surface *rsurf, |
| enum native_attachment which, |
| void *winsys_drawable_handle) |
| { |
| struct pipe_resource *pres = rsurf->resources[which]; |
| struct pipe_surface *psurf = rsurf->present_surfaces[which]; |
| |
| if (!pres) |
| return TRUE; |
| |
| if (!psurf) { |
| psurf = rsurf->screen->get_tex_surface(rsurf->screen, |
| pres, 0, 0, 0, PIPE_BIND_DISPLAY_TARGET); |
| if (!psurf) |
| return FALSE; |
| |
| rsurf->present_surfaces[which] = psurf; |
| } |
| |
| assert(psurf->texture == pres); |
| |
| rsurf->screen->flush_frontbuffer(rsurf->screen, |
| psurf, winsys_drawable_handle); |
| |
| return TRUE; |
| } |