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Diffstat (limited to 'src/gallium/state_trackers/dri2/dri_drawable.c')
-rw-r--r--src/gallium/state_trackers/dri2/dri_drawable.c315
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 0000000000..120d45bc03
--- /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: */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 11:36:57 +0000