diff options
Diffstat (limited to 'src/gallium/state_trackers/dri2/dri_drawable.c')
| -rw-r--r-- | src/gallium/state_trackers/dri2/dri_drawable.c | 315 |
1 files changed, 315 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/dri2/dri_drawable.c b/src/gallium/state_trackers/dri2/dri_drawable.c new file mode 100644 index 00000000000..120d45bc036 --- /dev/null +++ b/src/gallium/state_trackers/dri2/dri_drawable.c @@ -0,0 +1,315 @@ +/************************************************************************** + * + * 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. + * + **************************************************************************/ +/* + * Author: Keith Whitwell <keithw@vmware.com> + * Author: Jakob Bornecrantz <wallbraker@gmail.com> + */ + +#include "dri_screen.h" +#include "dri_context.h" +#include "dri_drawable.h" + +#include "pipe/p_context.h" +#include "pipe/p_screen.h" +#include "pipe/p_inlines.h" +#include "state_tracker/drm_api.h" +#include "state_tracker/st_public.h" +#include "state_tracker/st_context.h" +#include "state_tracker/st_cb_fbo.h" + +#include "util/u_memory.h" + + +static struct pipe_surface * +dri_surface_from_handle(struct pipe_screen *screen, + unsigned handle, + enum pipe_format format, + unsigned width, + unsigned height, + unsigned pitch) +{ + struct pipe_surface *surface = NULL; + struct pipe_texture *texture = NULL; + struct pipe_texture templat; + struct pipe_buffer *buf = NULL; + + buf = drm_api_hocks.buffer_from_handle(screen, "dri2 buffer", handle); + if (!buf) + return NULL; + + memset(&templat, 0, sizeof(templat)); + templat.tex_usage |= PIPE_TEXTURE_USAGE_RENDER_TARGET; + templat.target = PIPE_TEXTURE_2D; + templat.last_level = 0; + templat.depth[0] = 1; + templat.format = format; + templat.width[0] = width; + templat.height[0] = height; + pf_get_block(templat.format, &templat.block); + + texture = screen->texture_blanket(screen, + &templat, + &pitch, + buf); + + /* we don't need the buffer from this point on */ + pipe_buffer_reference(screen, &buf, NULL); + + if (!texture) + return NULL; + + surface = screen->get_tex_surface(screen, texture, 0, 0, 0, + PIPE_BUFFER_USAGE_GPU_READ | + PIPE_BUFFER_USAGE_GPU_WRITE); + + /* we don't need the texture from this point on */ + pipe_texture_reference(&texture, NULL); + return surface; +} + + +/** + * This will be called a drawable is known to have been resized. + */ +void +dri_get_buffers(__DRIdrawablePrivate *dPriv) +{ + struct dri_drawable *drawable = dri_drawable(dPriv); + struct pipe_surface *surface = NULL; + struct pipe_screen *screen = dri_screen(drawable->sPriv)->pipe_screen; + __DRIbuffer *buffers = NULL; + __DRIscreen *dri_screen = drawable->sPriv; + __DRIdrawable *dri_drawable = drawable->dPriv; + boolean have_depth = FALSE; + int i, count; + + buffers = (*dri_screen->dri2.loader->getBuffers)(dri_drawable, + &dri_drawable->w, + &dri_drawable->h, + drawable->attachments, + drawable->num_attachments, + &count, + dri_drawable->loaderPrivate); + + if (buffers == NULL) { + return; + } + + /* set one cliprect to cover the whole dri_drawable */ + dri_drawable->x = 0; + dri_drawable->y = 0; + dri_drawable->backX = 0; + dri_drawable->backY = 0; + dri_drawable->numClipRects = 1; + dri_drawable->pClipRects[0].x1 = 0; + dri_drawable->pClipRects[0].y1 = 0; + dri_drawable->pClipRects[0].x2 = dri_drawable->w; + dri_drawable->pClipRects[0].y2 = dri_drawable->h; + dri_drawable->numBackClipRects = 1; + dri_drawable->pBackClipRects[0].x1 = 0; + dri_drawable->pBackClipRects[0].y1 = 0; + dri_drawable->pBackClipRects[0].x2 = dri_drawable->w; + dri_drawable->pBackClipRects[0].y2 = dri_drawable->h; + + for (i = 0; i < count; i++) { + enum pipe_format format = 0; + int index = 0; + + switch (buffers[i].attachment) { + case __DRI_BUFFER_FRONT_LEFT: + index = ST_SURFACE_FRONT_LEFT; + format = PIPE_FORMAT_A8R8G8B8_UNORM; + break; + case __DRI_BUFFER_BACK_LEFT: + index = ST_SURFACE_BACK_LEFT; + format = PIPE_FORMAT_A8R8G8B8_UNORM; + break; + case __DRI_BUFFER_DEPTH: + index = ST_SURFACE_DEPTH; + format = PIPE_FORMAT_Z24S8_UNORM; + break; + case __DRI_BUFFER_STENCIL: + index = ST_SURFACE_DEPTH; + format = PIPE_FORMAT_Z24S8_UNORM; + break; + case __DRI_BUFFER_ACCUM: + default: + assert(0); + } + assert(buffers[i].cpp == 4); + + if (index == ST_SURFACE_DEPTH) { + if (have_depth) + continue; + else + have_depth = TRUE; + } + + surface = dri_surface_from_handle(screen, + buffers[i].name, + format, + dri_drawable->w, + dri_drawable->h, + buffers[i].pitch); + + st_set_framebuffer_surface(drawable->stfb, index, surface); + pipe_surface_reference(&surface, NULL); + } + /* this needed, or else the state tracker fails to pick the new buffers */ + st_resize_framebuffer(drawable->stfb, dri_drawable->w, dri_drawable->h); +} + + +void +dri_swap_buffers(__DRIdrawablePrivate * dPriv) +{ + struct dri_drawable *drawable = dri_drawable(dPriv); + struct pipe_surface *back_surf; + + assert(drawable); + assert(drawable->stfb); + + st_get_framebuffer_surface(drawable->stfb, + ST_SURFACE_BACK_LEFT, + &back_surf); + if (back_surf) { + st_notify_swapbuffers(drawable->stfb); + /* TODO do stuff here */ + 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); + + st_get_framebuffer_surface(drawable->stfb, + ST_SURFACE_BACK_LEFT, + &back_surf); + if (back_surf) { + drm_clip_rect_t rect; + rect.x1 = x; + rect.y1 = y; + rect.x2 = w; + rect.y2 = h; + + /* do stuff here */ + } +} + + +/** + * This is called when we need to set up GL rendering to a new X window. + */ +boolean +dri_create_buffer(__DRIscreenPrivate *sPriv, + __DRIdrawablePrivate *dPriv, + const __GLcontextModes *visual, + boolean isPixmap) +{ + enum pipe_format colorFormat, depthFormat, stencilFormat; + struct dri_drawable *drawable = NULL; + int i; + + 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. + */ + assert(visual->redBits == 8); + assert(visual->depthBits == 24 || visual->depthBits == 0); + assert(visual->stencilBits == 8 || visual->stencilBits == 0); + + colorFormat = PIPE_FORMAT_A8R8G8B8_UNORM; + + if (visual->depthBits) + depthFormat = PIPE_FORMAT_S8Z24_UNORM; + else + depthFormat = PIPE_FORMAT_NONE; + + if (visual->stencilBits) + stencilFormat = PIPE_FORMAT_S8Z24_UNORM; + else + stencilFormat = PIPE_FORMAT_NONE; + + drawable->stfb = st_create_framebuffer(visual, + colorFormat, + depthFormat, + stencilFormat, + dPriv->w, + dPriv->h, + (void*) drawable); + if (drawable->stfb == NULL) + goto fail; + + drawable->sPriv = sPriv; + drawable->dPriv = dPriv; + dPriv->driverPrivate = (void *) drawable; + + /* setup dri2 buffers information */ + i = 0; + drawable->attachments[i++] = __DRI_BUFFER_FRONT_LEFT; + drawable->attachments[i++] = __DRI_BUFFER_BACK_LEFT; + if (visual->depthBits) + drawable->attachments[i++] = __DRI_BUFFER_DEPTH; + if (visual->stencilBits) + drawable->attachments[i++] = __DRI_BUFFER_STENCIL; + drawable->num_attachments = i; + + return GL_TRUE; +fail: + FREE(drawable); + return GL_FALSE; +} + + +void +dri_destroy_buffer(__DRIdrawablePrivate *dPriv) +{ + struct dri_drawable *drawable = dri_drawable(dPriv); + + st_unreference_framebuffer(drawable->stfb); + + FREE(drawable); +} + +/* vim: set sw=3 ts=8 sts=3 expandtab: */ |