diff options
author | Chia-I Wu <[email protected]> | 2011-07-31 11:16:53 +0900 |
---|---|---|
committer | Chia-I Wu <[email protected]> | 2011-08-21 02:01:50 +0800 |
commit | 5ce2dc692f9ffe801d96f45e5be972d2fe1855f8 (patch) | |
tree | cbcedddd48118b53381d114c16b0c0895a63ffb2 /src/gallium | |
parent | 4c222ff4fea46ee5b740575df4b256fa2064984f (diff) |
st/egl: add buffer preserving support to Android
Use a staging color buffer when buffer preserving is enabled.
Diffstat (limited to 'src/gallium')
-rw-r--r-- | src/gallium/state_trackers/egl/android/native_android.cpp | 71 |
1 files changed, 67 insertions, 4 deletions
diff --git a/src/gallium/state_trackers/egl/android/native_android.cpp b/src/gallium/state_trackers/egl/android/native_android.cpp index b9f12dadc41..2d7ae8b58bd 100644 --- a/src/gallium/state_trackers/egl/android/native_android.cpp +++ b/src/gallium/state_trackers/egl/android/native_android.cpp @@ -37,6 +37,7 @@ extern "C" { #include "util/u_memory.h" #include "util/u_inlines.h" #include "util/u_format.h" +#include "util/u_box.h" #include "common/native.h" #include "common/native_helper.h" #include "android/android_sw_winsys.h" @@ -59,9 +60,12 @@ struct android_surface { struct android_display *adpy; android_native_window_t *win; + /* staging color buffer for when buffer preserving is enabled */ + struct pipe_resource *color_res; + uint stamp; android_native_buffer_t *buf; - struct pipe_resource *res; + struct pipe_resource *buf_res; /* cache the current back buffers */ struct { @@ -309,7 +313,7 @@ android_surface_dequeue_buffer(struct native_surface *nsurf) if (!res) return FALSE; - pipe_resource_reference(&asurf->res, res); + pipe_resource_reference(&asurf->buf_res, res); return TRUE; } @@ -322,7 +326,7 @@ android_surface_enqueue_buffer(struct native_surface *nsurf) { struct android_surface *asurf = android_surface(nsurf); - pipe_resource_reference(&asurf->res, NULL); + pipe_resource_reference(&asurf->buf_res, NULL); asurf->win->queueBuffer(asurf->win, asurf->buf); @@ -350,17 +354,63 @@ android_surface_swap_buffers(struct native_surface *nsurf) return TRUE; } +static void +copy_resources(struct native_display *ndpy, + struct pipe_resource *src, + struct pipe_resource *dst) +{ + struct pipe_context *pipe; + struct pipe_box box; + + pipe = ndpy_get_copy_context(ndpy); + if (!pipe) + return; + + u_box_origin_2d(src->width0, src->height0, &box); + pipe->resource_copy_region(pipe, dst, 0, 0, 0, 0, src, 0, &box); + pipe->flush(pipe, NULL); +} + static boolean android_surface_present(struct native_surface *nsurf, enum native_attachment natt, boolean preserve, uint swap_interval) { + struct android_surface *asurf = android_surface(nsurf); + struct android_display *adpy = asurf->adpy; boolean ret; if (swap_interval || natt != NATIVE_ATTACHMENT_BACK_LEFT) return FALSE; + /* we always render to color_res first when it exists */ + if (asurf->color_res) { + copy_resources(&adpy->base, asurf->color_res, asurf->buf_res); + if (!preserve) + pipe_resource_reference(&asurf->color_res, NULL); + } + else if (preserve) { + struct pipe_resource templ; + + memset(&templ, 0, sizeof(templ)); + templ.target = asurf->buf_res->target; + templ.format = asurf->buf_res->format; + templ.bind = PIPE_BIND_RENDER_TARGET; + templ.width0 = asurf->buf_res->width0; + templ.height0 = asurf->buf_res->height0; + templ.depth0 = asurf->buf_res->depth0; + templ.array_size = asurf->buf_res->array_size; + + asurf->color_res = + adpy->base.screen->resource_create(adpy->base.screen, &templ); + if (!asurf->color_res) + return FALSE; + + /* preserve the contents */ + copy_resources(&adpy->base, asurf->buf_res, asurf->color_res); + } + return android_surface_swap_buffers(nsurf); } @@ -375,6 +425,13 @@ android_surface_validate(struct native_surface *nsurf, uint attachment_mask, if (!asurf->buf) { if (!android_surface_dequeue_buffer(&asurf->base)) return FALSE; + + /* color_res must be compatible with buf_res */ + if (asurf->color_res && + (asurf->color_res->format != asurf->buf_res->format || + asurf->color_res->width0 != asurf->buf_res->width0 || + asurf->color_res->height0 != asurf->buf_res->height0)) + pipe_resource_reference(&asurf->color_res, NULL); } if (textures) { @@ -383,7 +440,8 @@ android_surface_validate(struct native_surface *nsurf, uint attachment_mask, if (native_attachment_mask_test(attachment_mask, att)) { textures[att] = NULL; - pipe_resource_reference(&textures[att], asurf->res); + pipe_resource_reference(&textures[att], + (asurf->color_res) ? asurf->color_res : asurf->buf_res); } } @@ -408,6 +466,8 @@ android_surface_destroy(struct native_surface *nsurf) struct android_surface *asurf = android_surface(nsurf); int i; + pipe_resource_reference(&asurf->color_res, NULL); + if (asurf->buf) android_surface_enqueue_buffer(&asurf->base); @@ -625,6 +685,9 @@ android_display_get_param(struct native_display *ndpy, int val; switch (param) { + case NATIVE_PARAM_PRESERVE_BUFFER: + val = 1; + break; default: val = 0; break; |