diff options
Diffstat (limited to 'src/gallium/state_trackers/glx/dri/dri_drawable.c')
| -rw-r--r-- | src/gallium/state_trackers/glx/dri/dri_drawable.c | 363 |
1 files changed, 363 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/glx/dri/dri_drawable.c b/src/gallium/state_trackers/glx/dri/dri_drawable.c new file mode 100644 index 00000000000..b712acda88e --- /dev/null +++ b/src/gallium/state_trackers/glx/dri/dri_drawable.c @@ -0,0 +1,363 @@ +/************************************************************************** + * + * 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 TUNGSTEN GRAPHICS 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 "dri_screen.h" +#include "dri_context.h" +#include "dri_swapbuffers.h" + +#include "pipe/p_context.h" +#include "state_tracker/st_public.h" +#include "state_tracker/st_context.h" +#include "state_tracker/st_cb_fbo.h" + + +static void +blit_swapbuffers(__DRIdrawablePrivate *dPriv, + __DRIcontextPrivate *cPriv, + struct pipe_surface *src, + const drm_clip_rect_t *rect) +{ + struct dri_screen *screen = dri_screen(dPriv->driScreenPriv); + struct dri_drawable *fb = dri_drawable(dPriv); + struct dri_context *context = dri_context(cPriv); + + const int nbox = dPriv->numClipRects; + const drm_clip_rect_t *pbox = dPriv->pClipRects; + + struct pipe_surface *dest = fb->front_surface; + const int backWidth = fb->stfb->Base.Width; + const int backHeight = fb->stfb->Base.Height; + int i; + + for (i = 0; i < nbox; i++, pbox++) { + drm_clip_rect_t box; + drm_clip_rect_t sbox; + + if (pbox->x1 > pbox->x2 || + pbox->y1 > pbox->y2 || + (pbox->x2 - pbox->x1) > dest->width || + (pbox->y2 - pbox->y1) > dest->height) + continue; + + box = *pbox; + + if (rect) { + drm_clip_rect_t rrect; + + rrect.x1 = dPriv->x + rect->x1; + rrect.y1 = (dPriv->h - rect->y1 - rect->y2) + dPriv->y; + rrect.x2 = rect->x2 + rrect.x1; + rrect.y2 = rect->y2 + rrect.y1; + if (rrect.x1 > box.x1) + box.x1 = rrect.x1; + if (rrect.y1 > box.y1) + box.y1 = rrect.y1; + if (rrect.x2 < box.x2) + box.x2 = rrect.x2; + if (rrect.y2 < box.y2) + box.y2 = rrect.y2; + + if (box.x1 > box.x2 || box.y1 > box.y2) + continue; + } + + /* restrict blit to size of actually rendered area */ + if (box.x2 - box.x1 > backWidth) + box.x2 = backWidth + box.x1; + if (box.y2 - box.y1 > backHeight) + box.y2 = backHeight + box.y1; + + debug_printf("%s: box %d,%d-%d,%d\n", __FUNCTION__, + box.x1, box.y1, box.x2, box.y2); + + sbox.x1 = box.x1 - dPriv->x; + sbox.y1 = box.y1 - dPriv->y; + + ctx->st->pipe->surface_copy( ctx->st->pipe, + FALSE, + dest, + box.x1, box.y1, + src, + sbox.x1, sbox.y1, + box.x2 - box.x1, + box.y2 - box.y1 ); + } +} + +/** + * Display a colorbuffer surface in an X window. + * Used for SwapBuffers and flushing front buffer rendering. + * + * \param dPriv the window/drawable to display into + * \param surf the surface to display + * \param rect optional subrect of surface to display (may be NULL). + */ +static void +dri_display_surface(__DRIdrawablePrivate *dPriv, + struct pipe_surface *source, + const drm_clip_rect_t *rect) +{ + struct dri_drawable *drawable = dri_drawable(dPriv); + struct dri_screen *screen = dri_screen(dPriv->driScreenPriv); + struct dri_context *context = screen->dummy_context; + struct pipe_winsys *winsys = screen->winsys; + + if (!context) + return; + + if (drawable->last_swap_fence) { + winsys->fence_finish( winsys, + drawable->last_swap_fence, + 0 ); + + winsys->fence_reference( winsys, + &drawable->last_swap_fence, + NULL ); + } + + drawable->last_swap_fence = drawable->first_swap_fence; + drawable->first_swap_fence = NULL; + + /* Call lock_hardware to update dPriv cliprects. + */ + dri_lock_hardware(context, drawable); + { + if (dPriv->numClipRects) { + blit_swapbuffers( context, dPriv, source, rect ); + } + } + dri_unlock_hardware(context); + + if (drawble->stamp != drawable->dPriv->lastStamp) { + dri_update_window_size( dpriv ); + } +} + + + +/** + * This will be called a drawable is known to have moved/resized. + */ +void +dri_update_window_size(__DRIdrawablePrivate *dPriv) +{ + struct dri_drawable *drawable = dri_drawable(dPriv); + st_resize_framebuffer(drawable->stfb, dPriv->w, dPriv->h); + drawable->stamp = dPriv->lastStamp; +} + + + +void +dri_swap_buffers(__DRIdrawablePrivate * dPriv) +{ + struct dri_drawable *drawable = dri_drawable(dPriv); + struct pipe_surface *back_surf; + + assert(drawable); + assert(drawable->stfb); + + back_surf = st_get_framebuffer_surface(drawable->stfb, + ST_SURFACE_BACK_LEFT); + if (back_surf) { + st_notify_swapbuffers(drawable->stfb); + dri_display_surface(dPriv, back_surf, NULL); + st_notify_swapbuffers_complete(drawable->stfb); + } +} + + +/** + * Called via glXCopySubBufferMESA() to copy a subrect of the back + * buffer to the front buffer/screen. + */ +void +dri_copy_sub_buffer(__DRIdrawablePrivate * dPriv, int x, int y, int w, int h) +{ + struct dri_drawable *drawable = dri_drawable(dPriv); + struct pipe_surface *back_surf; + + assert(drawable); + assert(drawable->stfb); + + back_surf = st_get_framebuffer_surface(drawable->stfb, + ST_SURFACE_BACK_LEFT); + if (back_surf) { + drm_clip_rect_t rect; + rect.x1 = x; + rect.y1 = y; + rect.x2 = w; + rect.y2 = h; + + st_notify_swapbuffers(drawable->stfb); + dri_display_surface(dPriv, back_surf, &rect); + } +} + + + +/* + * The state tracker keeps track of whether the fake frontbuffer has + * been touched by any rendering since the last time we copied its + * contents to the real frontbuffer. Our task is easy: + */ +static void +dri_flush_frontbuffer( struct pipe_winsys *winsys, + struct pipe_surface *surf, + void *context_private) +{ + struct dri_context *dri = (struct dri_context *) context_private; + __DRIdrawablePrivate *dPriv = dri->driDrawable; + + dri_display_surface(dPriv, surf, NULL); +} + + + +/* Need to create a surface which wraps the front surface to support + * client-side swapbuffers. + */ +static void +dri_create_front_surface(struct dri_screen *screen, + struct pipe_winsys *winsys, + unsigned handle) +{ + struct pipe_screen *pipe_screen = screen->pipe_screen; + struct pipe_texture *texture; + struct pipe_texture templat; + struct pipe_surface *surface; + struct pipe_buffer *buffer; + unsigned pitch; + + assert(screen->front.cpp == 4); + +// buffer = dri_buffer_from_handle(screen->winsys, +// "front", handle); + + if (!buffer) + return; + + screen->front.buffer = dri_bo(buffer); + + memset(&templat, 0, sizeof(templat)); + templat.tex_usage |= PIPE_TEXTURE_USAGE_DISPLAY_TARGET; + templat.target = PIPE_TEXTURE_2D; + templat.last_level = 0; + templat.depth[0] = 1; + templat.format = PIPE_FORMAT_A8R8G8B8_UNORM; + templat.width[0] = screen->front.width; + templat.height[0] = screen->front.height; + pf_get_block(templat.format, &templat.block); + pitch = screen->front.pitch; + + texture = pipe_screen->texture_blanket(pipe_screen, + &templat, + &pitch, + buffer); + + /* Unref the buffer we don't need it anyways */ + pipe_buffer_reference(screen, &buffer, NULL); + + surface = pipe_screen->get_tex_surface(pipe_screen, + texture, + 0, + 0, + 0, + PIPE_BUFFER_USAGE_GPU_WRITE); + + screen->front.texture = texture; + screen->front.surface = surface; +} + +/** + * This is called when we need to set up GL rendering to a new X window. + */ +static boolean +dri_create_buffer(__DRIscreenPrivate *sPriv, + __DRIdrawablePrivate *dPriv, + const __GLcontextModes *visual, + boolean isPixmap) +{ + enum pipe_format colorFormat, depthFormat, stencilFormat; + struct dri_drawable *drawable; + + if (isPixmap) + goto fail; /* not implemented */ + + drawable = CALLOC_STRUCT(dri_drawable); + if (drawable == NULL) + goto fail; + + /* XXX: todo: use the pipe_screen queries to figure out which + * render targets are supportable. + */ + if (visual->redBits == 5) + colorFormat = PIPE_FORMAT_R5G6B5_UNORM; + else + colorFormat = PIPE_FORMAT_A8R8G8B8_UNORM; + + if (visual->depthBits == 16) + depthFormat = PIPE_FORMAT_Z16_UNORM; + else if (visual->depthBits == 24) { + if (visual->stencilBits == 8) + depthFormat = PIPE_FORMAT_S8Z24_UNORM; + else + depthFormat = PIPE_FORMAT_X8Z24_UNORM; + } + + drawable->stfb = st_create_framebuffer(visual, + colorFormat, + depthFormat, + dPriv->w, + dPriv->h, + (void*) drawable); + if (drawable->stfb == NULL) + goto fail; + + dPriv->driverPrivate = (void *) drawable; + return GL_TRUE; + +fail: + FREE(drawable); + return GL_FALSE; +} + +static void +dri_destroy_buffer(__DRIdrawablePrivate *dPriv) +{ + struct dri_drawable *drawable = dri_drawable(dPriv); + + /* No particular need to wait on fences before dereferencing them: + */ + winsys->fence_reference( winsys, &ctx->last_swap_fence, NULL ); + winsys->fence_reference( winsys, &ctx->first_swap_fence, NULL ); + + st_unreference_framebuffer(drawable->stfb); + + FREE(drawable); +} + |