diff options
Diffstat (limited to 'src/gallium/state_trackers/dri/dri_drawable.c')
| -rw-r--r-- | src/gallium/state_trackers/dri/dri_drawable.c | 687 |
1 files changed, 687 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/dri/dri_drawable.c b/src/gallium/state_trackers/dri/dri_drawable.c new file mode 100644 index 0000000000..5cec9e329d --- /dev/null +++ b/src/gallium/state_trackers/dri/dri_drawable.c @@ -0,0 +1,687 @@ +/************************************************************************** + * + * 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 "main/mtypes.h" +#include "main/renderbuffer.h" +#include "state_tracker/drm_api.h" +#include "state_tracker/dri1_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 drm_api *api, + 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; + + 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 = api->texture_from_shared_handle(api, screen, &templat, + "dri2 buffer", pitch, handle); + + if (!texture) { + debug_printf("%s: Failed to blanket the buffer with a texture\n", __func__); + 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; +} + +/** + * Pixmaps have will have the same name of fake front and front. + */ +static boolean +dri2_check_if_pixmap(__DRIbuffer *buffers, int count) +{ + boolean found = FALSE; + boolean is_pixmap = FALSE; + unsigned name; + int i; + + for (i = 0; i < count; i++) { + switch (buffers[i].attachment) { + case __DRI_BUFFER_FRONT_LEFT: + case __DRI_BUFFER_FAKE_FRONT_LEFT: + if (found) { + is_pixmap = buffers[i].name == name; + } else { + name = buffers[i].name; + found = TRUE; + } + default: + continue; + } + } + + return is_pixmap; +} + +/** + * 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; + struct drm_api *api = ((struct dri_screen*)(dri_screen->private))->api; + 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; + + if (drawable->old_num == count && + drawable->old_w == dri_drawable->w && + drawable->old_h == dri_drawable->h && + memcmp(drawable->old, buffers, sizeof(__DRIbuffer) * count) == 0) { + return; + } else { + drawable->old_num = count; + drawable->old_w = dri_drawable->w; + drawable->old_h = dri_drawable->h; + memcpy(drawable->old, buffers, sizeof(__DRIbuffer) * count); + } + + drawable->is_pixmap = dri2_check_if_pixmap(buffers, count); + + for (i = 0; i < count; i++) { + enum pipe_format format = 0; + int index = 0; + + switch (buffers[i].attachment) { + case __DRI_BUFFER_FRONT_LEFT: + continue; + case __DRI_BUFFER_FAKE_FRONT_LEFT: + index = ST_SURFACE_FRONT_LEFT; + format = drawable->color_format; + break; + case __DRI_BUFFER_BACK_LEFT: + index = ST_SURFACE_BACK_LEFT; + format = drawable->color_format; + break; + case __DRI_BUFFER_DEPTH: + case __DRI_BUFFER_DEPTH_STENCIL: + case __DRI_BUFFER_STENCIL: + index = ST_SURFACE_DEPTH; + format = drawable->depth_stencil_format; + break; + case __DRI_BUFFER_ACCUM: + default: + assert(0); + } + + if (index == ST_SURFACE_DEPTH) { + if (have_depth) + continue; + else + have_depth = TRUE; + } + + surface = dri_surface_from_handle(api, + screen, + buffers[i].name, + format, + dri_drawable->w, + dri_drawable->h, buffers[i].pitch); + + switch (buffers[i].attachment) { + case __DRI_BUFFER_FAKE_FRONT_LEFT: + case __DRI_BUFFER_BACK_LEFT: + drawable->color_format = surface->format; + break; + case __DRI_BUFFER_DEPTH: + case __DRI_BUFFER_DEPTH_STENCIL: + case __DRI_BUFFER_STENCIL: + drawable->depth_stencil_format = surface->format; + break; + } + + 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); +} + +/** + * These are used for GLX_EXT_texture_from_pixmap + */ +void dri2_set_tex_buffer2(__DRIcontext *pDRICtx, GLint target, + GLint format, __DRIdrawable *dPriv) +{ + struct dri_drawable *drawable = dri_drawable(dPriv); + struct pipe_surface *ps; + + if (!drawable->stfb->Base.Attachment[BUFFER_FRONT_LEFT].Renderbuffer) { + struct gl_renderbuffer *rb = + st_new_renderbuffer_fb(drawable->color_format, 0 /*XXX*/, FALSE); + _mesa_add_renderbuffer(&drawable->stfb->Base, BUFFER_FRONT_LEFT, rb); + } + + dri_get_buffers(drawable->dPriv); + st_get_framebuffer_surface(drawable->stfb, ST_SURFACE_FRONT_LEFT, &ps); + + st_bind_texture_surface(ps, target == GL_TEXTURE_2D ? ST_TEXTURE_2D : + ST_TEXTURE_RECT, 0, drawable->color_format); +} + +void dri2_set_tex_buffer(__DRIcontext *pDRICtx, GLint target, + __DRIdrawable *dPriv) +{ + dri2_set_tex_buffer2(pDRICtx, target, GLX_TEXTURE_FORMAT_RGBA_EXT, dPriv); +} + +void +dri_flush_frontbuffer(struct pipe_screen *screen, + struct pipe_surface *surf, void *context_private) +{ + struct dri_context *ctx = (struct dri_context *)context_private; + struct dri_drawable *drawable = dri_drawable(ctx->dPriv); + __DRIdrawable *dri_drawable = ctx->dPriv; + __DRIscreen *dri_screen = ctx->sPriv; + + /* XXX Does this function get called with DRI1? */ + + if (ctx->dPriv == NULL) { + debug_printf("%s: no drawable bound to context\n", __func__); + return; + } + +#if 0 + /* TODO if rendering to pixmaps is slow enable this code. */ + if (drawable->is_pixmap) + return; +#else + (void)drawable; +#endif + + (*dri_screen->dri2.loader->flushFrontBuffer)(dri_drawable, + dri_drawable->loaderPrivate); +} + +/** + * 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) +{ + struct dri_screen *screen = sPriv->private; + struct dri_drawable *drawable = NULL; + int i; + + if (isPixmap) + goto fail; /* not implemented */ + + drawable = CALLOC_STRUCT(dri_drawable); + if (drawable == NULL) + goto fail; + + if (visual->redBits == 8) { + if (visual->alphaBits == 8) + drawable->color_format = PIPE_FORMAT_A8R8G8B8_UNORM; + else + drawable->color_format = PIPE_FORMAT_X8R8G8B8_UNORM; + } else { + drawable->color_format = PIPE_FORMAT_R5G6B5_UNORM; + } + + switch(visual->depthBits) { + default: + case 0: + drawable->depth_stencil_format = PIPE_FORMAT_NONE; + break; + case 16: + drawable->depth_stencil_format = PIPE_FORMAT_Z16_UNORM; + break; + case 24: + if (visual->stencilBits == 0) { + drawable->depth_stencil_format = (screen->d_depth_bits_last) ? + PIPE_FORMAT_X8Z24_UNORM: + PIPE_FORMAT_Z24X8_UNORM; + } else { + drawable->depth_stencil_format = (screen->sd_depth_bits_last) ? + PIPE_FORMAT_S8Z24_UNORM: + PIPE_FORMAT_Z24S8_UNORM; + } + break; + case 32: + drawable->depth_stencil_format = PIPE_FORMAT_Z32_UNORM; + break; + } + + drawable->stfb = st_create_framebuffer(visual, + drawable->color_format, + drawable->depth_stencil_format, + drawable->depth_stencil_format, + 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 */ + /* TODO incase of double buffer visual, delay fake creation */ + i = 0; + drawable->attachments[i++] = __DRI_BUFFER_FRONT_LEFT; + + if (visual->doubleBufferMode) + drawable->attachments[i++] = __DRI_BUFFER_BACK_LEFT; + else + drawable->attachments[i++] = __DRI_BUFFER_FAKE_FRONT_LEFT; + if (visual->depthBits && visual->stencilBits) + drawable->attachments[i++] = __DRI_BUFFER_DEPTH_STENCIL; + else if (visual->depthBits) + drawable->attachments[i++] = __DRI_BUFFER_DEPTH; + else if (visual->stencilBits) + drawable->attachments[i++] = __DRI_BUFFER_STENCIL; + drawable->num_attachments = i; + + drawable->desired_fences = 2; + + return GL_TRUE; + fail: + FREE(drawable); + return GL_FALSE; +} + +static struct pipe_fence_handle * +dri_swap_fences_pop_front(struct dri_drawable *draw) +{ + struct pipe_screen *screen = dri_screen(draw->sPriv)->pipe_screen; + struct pipe_fence_handle *fence = NULL; + + if (draw->cur_fences >= draw->desired_fences) { + screen->fence_reference(screen, &fence, draw->swap_fences[draw->tail]); + screen->fence_reference(screen, &draw->swap_fences[draw->tail++], NULL); + --draw->cur_fences; + draw->tail &= DRI_SWAP_FENCES_MASK; + } + return fence; +} + +static void +dri_swap_fences_push_back(struct dri_drawable *draw, + struct pipe_fence_handle *fence) +{ + struct pipe_screen *screen = dri_screen(draw->sPriv)->pipe_screen; + + if (!fence) + return; + + if (draw->cur_fences < DRI_SWAP_FENCES_MAX) { + draw->cur_fences++; + screen->fence_reference(screen, &draw->swap_fences[draw->head++], + fence); + draw->head &= DRI_SWAP_FENCES_MASK; + } +} + +void +dri_destroy_buffer(__DRIdrawablePrivate * dPriv) +{ + struct dri_drawable *drawable = dri_drawable(dPriv); + struct pipe_fence_handle *fence; + struct pipe_screen *screen = dri_screen(drawable->sPriv)->pipe_screen; + + st_unreference_framebuffer(drawable->stfb); + drawable->desired_fences = 0; + while (drawable->cur_fences) { + fence = dri_swap_fences_pop_front(drawable); + screen->fence_reference(screen, &fence, NULL); + } + + FREE(drawable); +} + +static void +dri1_update_drawables_locked(struct dri_context *ctx, + __DRIdrawablePrivate * driDrawPriv, + __DRIdrawablePrivate * driReadPriv) +{ + if (ctx->stLostLock) { + ctx->stLostLock = FALSE; + if (driDrawPriv == driReadPriv) + DRI_VALIDATE_DRAWABLE_INFO(ctx->sPriv, driDrawPriv); + else + DRI_VALIDATE_TWO_DRAWABLES_INFO(ctx->sPriv, driDrawPriv, + driReadPriv); + } +} + +/** + * This ensures all contexts which bind to a drawable pick up the + * drawable change and signal new buffer state. + * Calling st_resize_framebuffer for each context may seem like overkill, + * but no new buffers will actually be allocated if the dimensions don't + * change. + */ + +static void +dri1_propagate_drawable_change(struct dri_context *ctx) +{ + __DRIdrawablePrivate *dPriv = ctx->dPriv; + __DRIdrawablePrivate *rPriv = ctx->rPriv; + boolean flushed = FALSE; + + if (dPriv && ctx->d_stamp != dPriv->lastStamp) { + + st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL); + flushed = TRUE; + ctx->d_stamp = dPriv->lastStamp; + st_resize_framebuffer(dri_drawable(dPriv)->stfb, dPriv->w, dPriv->h); + + } + + if (rPriv && dPriv != rPriv && ctx->r_stamp != rPriv->lastStamp) { + + if (!flushed) + st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL); + ctx->r_stamp = rPriv->lastStamp; + st_resize_framebuffer(dri_drawable(rPriv)->stfb, rPriv->w, rPriv->h); + + } else if (rPriv && dPriv == rPriv) { + + ctx->r_stamp = ctx->d_stamp; + + } +} + +void +dri1_update_drawables(struct dri_context *ctx, + struct dri_drawable *draw, struct dri_drawable *read) +{ + dri_lock(ctx); + dri1_update_drawables_locked(ctx, draw->dPriv, read->dPriv); + dri_unlock(ctx); + + dri1_propagate_drawable_change(ctx); +} + +static INLINE boolean +dri1_intersect_src_bbox(struct drm_clip_rect *dst, + int dst_x, + int dst_y, + const struct drm_clip_rect *src, + const struct drm_clip_rect *bbox) +{ + int xy1; + int xy2; + + xy1 = ((int)src->x1 > (int)bbox->x1 + dst_x) ? src->x1 : + (int)bbox->x1 + dst_x; + xy2 = ((int)src->x2 < (int)bbox->x2 + dst_x) ? src->x2 : + (int)bbox->x2 + dst_x; + if (xy1 >= xy2 || xy1 < 0) + return FALSE; + + dst->x1 = xy1; + dst->x2 = xy2; + + xy1 = ((int)src->y1 > (int)bbox->y1 + dst_y) ? src->y1 : + (int)bbox->y1 + dst_y; + xy2 = ((int)src->y2 < (int)bbox->y2 + dst_y) ? src->y2 : + (int)bbox->y2 + dst_y; + if (xy1 >= xy2 || xy1 < 0) + return FALSE; + + dst->y1 = xy1; + dst->y2 = xy2; + return TRUE; +} + +static void +dri1_swap_copy(struct dri_context *ctx, + struct pipe_surface *dst, + struct pipe_surface *src, + __DRIdrawablePrivate * dPriv, const struct drm_clip_rect *bbox) +{ + struct pipe_context *pipe = ctx->pipe; + struct drm_clip_rect clip; + struct drm_clip_rect *cur; + int i; + + cur = dPriv->pClipRects; + + for (i = 0; i < dPriv->numClipRects; ++i) { + if (dri1_intersect_src_bbox(&clip, dPriv->x, dPriv->y, cur++, bbox)) + pipe->surface_copy(pipe, dst, clip.x1, clip.y1, + src, + (int)clip.x1 - dPriv->x, + (int)clip.y1 - dPriv->y, + clip.x2 - clip.x1, clip.y2 - clip.y1); + } +} + +static void +dri1_copy_to_front(struct dri_context *ctx, + struct pipe_surface *surf, + __DRIdrawablePrivate * dPriv, + const struct drm_clip_rect *sub_box, + struct pipe_fence_handle **fence) +{ + struct pipe_context *pipe = ctx->pipe; + boolean save_lost_lock; + uint cur_w; + uint cur_h; + struct drm_clip_rect bbox; + boolean visible = TRUE; + + *fence = NULL; + + dri_lock(ctx); + save_lost_lock = ctx->stLostLock; + dri1_update_drawables_locked(ctx, dPriv, dPriv); + st_get_framebuffer_dimensions(dri_drawable(dPriv)->stfb, &cur_w, &cur_h); + + bbox.x1 = 0; + bbox.x2 = cur_w; + bbox.y1 = 0; + bbox.y2 = cur_h; + + if (sub_box) + visible = dri1_intersect_src_bbox(&bbox, 0, 0, &bbox, sub_box); + + if (visible && __dri1_api_hooks->present_locked) { + + __dri1_api_hooks->present_locked(pipe, + surf, + dPriv->pClipRects, + dPriv->numClipRects, + dPriv->x, dPriv->y, &bbox, fence); + + } else if (visible && __dri1_api_hooks->front_srf_locked) { + + struct pipe_surface *front = __dri1_api_hooks->front_srf_locked(pipe); + + if (front) + dri1_swap_copy(ctx, front, surf, dPriv, &bbox); + + st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, fence); + } + + ctx->stLostLock = save_lost_lock; + + /** + * FIXME: Revisit this: Update drawables on copy_sub_buffer ? + */ + + if (!sub_box) + dri1_update_drawables_locked(ctx, ctx->dPriv, ctx->rPriv); + + dri_unlock(ctx); + dri1_propagate_drawable_change(ctx); +} + +void +dri1_flush_frontbuffer(struct pipe_screen *screen, + struct pipe_surface *surf, void *context_private) +{ + struct dri_context *ctx = (struct dri_context *)context_private; + struct pipe_fence_handle *dummy_fence; + + dri1_copy_to_front(ctx, surf, ctx->dPriv, NULL, &dummy_fence); + screen->fence_reference(screen, &dummy_fence, NULL); + + /** + * FIXME: Do we need swap throttling here? + */ +} + +void +dri_swap_buffers(__DRIdrawablePrivate * dPriv) +{ + struct dri_context *ctx; + struct pipe_surface *back_surf; + struct dri_drawable *draw = dri_drawable(dPriv); + struct pipe_screen *screen = dri_screen(draw->sPriv)->pipe_screen; + struct pipe_fence_handle *fence; + struct st_context *st = st_get_current(); + + assert(__dri1_api_hooks != NULL); + + if (!st) + return; /* For now */ + + ctx = (struct dri_context *)st->pipe->priv; + + st_get_framebuffer_surface(draw->stfb, ST_SURFACE_BACK_LEFT, &back_surf); + if (back_surf) { + st_notify_swapbuffers(draw->stfb); + st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL); + fence = dri_swap_fences_pop_front(draw); + if (fence) { + (void)screen->fence_finish(screen, fence, 0); + screen->fence_reference(screen, &fence, NULL); + } + dri1_copy_to_front(ctx, back_surf, dPriv, NULL, &fence); + dri_swap_fences_push_back(draw, fence); + screen->fence_reference(screen, &fence, NULL); + } +} + +void +dri_copy_sub_buffer(__DRIdrawablePrivate * dPriv, int x, int y, int w, int h) +{ + struct pipe_screen *screen = dri_screen(dPriv->driScreenPriv)->pipe_screen; + struct drm_clip_rect sub_bbox; + struct dri_context *ctx; + struct pipe_surface *back_surf; + struct dri_drawable *draw = dri_drawable(dPriv); + struct pipe_fence_handle *dummy_fence; + struct st_context *st = st_get_current(); + + assert(__dri1_api_hooks != NULL); + + if (!st) + return; + + ctx = (struct dri_context *)st->pipe->priv; + + sub_bbox.x1 = x; + sub_bbox.x2 = x + w; + sub_bbox.y1 = y; + sub_bbox.y2 = y + h; + + st_get_framebuffer_surface(draw->stfb, ST_SURFACE_BACK_LEFT, &back_surf); + if (back_surf) { + st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL); + dri1_copy_to_front(ctx, back_surf, dPriv, &sub_bbox, &dummy_fence); + screen->fence_reference(screen, &dummy_fence, NULL); + } +} + +/* vim: set sw=3 ts=8 sts=3 expandtab: */ |