diff options
Diffstat (limited to 'src/gallium/winsys/drm/radeon/radeon_buffer.c')
| -rw-r--r-- | src/gallium/winsys/drm/radeon/radeon_buffer.c | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/src/gallium/winsys/drm/radeon/radeon_buffer.c b/src/gallium/winsys/drm/radeon/radeon_buffer.c new file mode 100644 index 00000000000..259a505c0a6 --- /dev/null +++ b/src/gallium/winsys/drm/radeon/radeon_buffer.c @@ -0,0 +1,239 @@ +/* + * Copyright © 2008 Jérôme Glisse + * 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 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 THE COPYRIGHT HOLDERS, AUTHORS + * 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. + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + */ +/* + * Authors: + * Jérôme Glisse <[email protected]> + */ +#include <stdio.h> +#include "dri_util.h" +#include "state_tracker/st_public.h" +#include "pipe/p_defines.h" +#include "pipe/p_inlines.h" +#include "radeon_buffer.h" +#include "radeon_screen.h" +#include "radeon_context.h" +#include "radeon_bo.h" +#include "radeon_drm.h" + +static const char *radeon_get_name(struct pipe_winsys *ws) +{ + return "RADEON/DRI2"; +} + +static struct pipe_buffer *radeon_buffer_create(struct pipe_winsys *ws, + unsigned alignment, + unsigned usage, + unsigned size) +{ + struct radeon_pipe_winsys *radeon_ws = (struct radeon_pipe_winsys *)ws; + struct radeon_pipe_buffer *radeon_buffer; + uint32_t domain; + + radeon_buffer = calloc(1, sizeof(*radeon_buffer)); + if (radeon_buffer == NULL) { + return NULL; + } + radeon_buffer->base.refcount = 1; + radeon_buffer->base.alignment = alignment; + radeon_buffer->base.usage = usage; + radeon_buffer->base.size = size; + + domain = 0; + + if (usage & PIPE_BUFFER_USAGE_PIXEL) { + domain |= RADEON_GEM_DOMAIN_VRAM; + } + if (usage & PIPE_BUFFER_USAGE_VERTEX) { + domain |= RADEON_GEM_DOMAIN_GTT; + } + + if (usage & PIPE_BUFFER_USAGE_INDEX) { + domain |= RADEON_GEM_DOMAIN_GTT; + } + radeon_buffer->bo = radeon_bo_open(radeon_ws->radeon_screen->bom, 0, + size, alignment, domain, 0); + if (radeon_buffer->bo == NULL) { + free(radeon_buffer); + } + return &radeon_buffer->base; +} + +static struct pipe_buffer *radeon_buffer_user_create(struct pipe_winsys *ws, + void *ptr, + unsigned bytes) +{ + struct radeon_pipe_buffer *radeon_buffer; + + radeon_buffer = (struct radeon_pipe_buffer*)radeon_buffer_create(ws, 0, 0, bytes); + if (radeon_buffer == NULL) { + return NULL; + } + radeon_bo_map(radeon_buffer->bo, 1); + memcpy(radeon_buffer->bo->ptr, ptr, bytes); + radeon_bo_unmap(radeon_buffer->bo); + return &radeon_buffer->base; +} + +static void radeon_buffer_del(struct pipe_winsys *ws, struct pipe_buffer *buffer) +{ + struct radeon_pipe_buffer *radeon_buffer = (struct radeon_pipe_buffer*)buffer; + + radeon_bo_unref(radeon_buffer->bo); + free(radeon_buffer); +} + +static void *radeon_buffer_map(struct pipe_winsys *ws, + struct pipe_buffer *buffer, + unsigned flags) +{ + struct radeon_pipe_buffer *radeon_buffer = (struct radeon_pipe_buffer*)buffer; + int write = 0; + + if (flags & PIPE_BUFFER_USAGE_CPU_WRITE) { + write = 1; + } + if (radeon_bo_map(radeon_buffer->bo, write)) + return NULL; + return radeon_buffer->bo->ptr; +} + +static void radeon_buffer_unmap(struct pipe_winsys *ws, struct pipe_buffer *buffer) +{ + struct radeon_pipe_buffer *radeon_buffer = (struct radeon_pipe_buffer*)buffer; + + radeon_bo_unmap(radeon_buffer->bo); +} + +static void radeon_fence_reference(struct pipe_winsys *ws, + struct pipe_fence_handle **ptr, + struct pipe_fence_handle *pfence) +{ +} + +static int radeon_fence_signalled(struct pipe_winsys *ws, + struct pipe_fence_handle *pfence, + unsigned flag) +{ + return 1; +} + +static int radeon_fence_finish(struct pipe_winsys *ws, + struct pipe_fence_handle *pfence, + unsigned flag) +{ + return 0; +} + +static void radeon_flush_frontbuffer(struct pipe_winsys *pipe_winsys, + struct pipe_surface *pipe_surface, + void *context_private) +{ + /* TODO: call dri2CopyRegion */ +} + +struct pipe_winsys *radeon_pipe_winsys(struct radeon_screen *radeon_screen) +{ + struct radeon_pipe_winsys *radeon_ws; + + radeon_ws = calloc(1, sizeof(struct radeon_pipe_winsys)); + if (radeon_ws == NULL) { + return NULL; + } + radeon_ws->radeon_screen = radeon_screen; + + radeon_ws->winsys.flush_frontbuffer = radeon_flush_frontbuffer; + + radeon_ws->winsys.buffer_create = radeon_buffer_create; + radeon_ws->winsys.buffer_destroy = radeon_buffer_del; + radeon_ws->winsys.user_buffer_create = radeon_buffer_user_create; + radeon_ws->winsys.buffer_map = radeon_buffer_map; + radeon_ws->winsys.buffer_unmap = radeon_buffer_unmap; + + radeon_ws->winsys.fence_reference = radeon_fence_reference; + radeon_ws->winsys.fence_signalled = radeon_fence_signalled; + radeon_ws->winsys.fence_finish = radeon_fence_finish; + + radeon_ws->winsys.get_name = radeon_get_name; + + return &radeon_ws->winsys; +} + +static struct pipe_buffer *radeon_buffer_from_handle(struct radeon_screen *radeon_screen, + uint32_t handle) +{ + struct radeon_pipe_buffer *radeon_buffer; + struct radeon_bo *bo = NULL; + + bo = radeon_bo_open(radeon_screen->bom, handle, 0, 0, 0, 0); + if (bo == NULL) { + return NULL; + } + radeon_buffer = calloc(1, sizeof(struct radeon_pipe_buffer)); + if (radeon_buffer == NULL) { + radeon_bo_unref(bo); + return NULL; + } + radeon_buffer->base.refcount = 1; + radeon_buffer->base.usage = PIPE_BUFFER_USAGE_PIXEL; + radeon_buffer->bo = bo; + return &radeon_buffer->base; +} + +struct pipe_surface *radeon_surface_from_handle(struct radeon_context *radeon_context, + uint32_t handle, + enum pipe_format format, + int w, int h, int pitch) +{ + struct pipe_screen *pipe_screen = radeon_context->pipe_screen; + struct pipe_winsys *pipe_winsys = radeon_context->pipe_winsys; + struct pipe_texture tmpl; + struct pipe_surface *ps; + struct pipe_texture *pt; + struct pipe_buffer *pb; + + pb = radeon_buffer_from_handle(radeon_context->radeon_screen, handle); + if (pb == NULL) { + return NULL; + } + memset(&tmpl, 0, sizeof(tmpl)); + tmpl.tex_usage = PIPE_TEXTURE_USAGE_DISPLAY_TARGET; + tmpl.target = PIPE_TEXTURE_2D; + tmpl.width[0] = w; + tmpl.height[0] = h; + tmpl.depth[0] = 1; + tmpl.format = format; + pf_get_block(tmpl.format, &tmpl.block); + tmpl.nblocksx[0] = pf_get_nblocksx(&tmpl.block, w); + tmpl.nblocksy[0] = pf_get_nblocksy(&tmpl.block, h); + + pt = pipe_screen->texture_blanket(pipe_screen, &tmpl, &pitch, pb); + if (pt == NULL) { + pipe_buffer_reference(pipe_screen, &pb, NULL); + } + ps = pipe_screen->get_tex_surface(pipe_screen, pt, 0, 0, 0, + PIPE_BUFFER_USAGE_GPU_WRITE); + return ps; +} |