| #include <stdlib.h> |
| #include <fcntl.h> |
| #include <unistd.h> |
| #include <assert.h> |
| |
| #include <xf86drm.h> |
| |
| #include <X11/Xlibint.h> |
| #include <X11/Xlib.h> |
| #include "va.h" |
| #include "va_backend.h" |
| |
| #include "va_dri2.h" |
| #include "va_dri2tokens.h" |
| #include "va_dricommon.h" |
| |
| #define __DRI_BUFFER_FRONT_LEFT 0 |
| #define __DRI_BUFFER_BACK_LEFT 1 |
| #define __DRI_BUFFER_FRONT_RIGHT 2 |
| #define __DRI_BUFFER_BACK_RIGHT 3 |
| #define __DRI_BUFFER_DEPTH 4 |
| #define __DRI_BUFFER_STENCIL 5 |
| #define __DRI_BUFFER_ACCUM 6 |
| #define __DRI_BUFFER_FAKE_FRONT_LEFT 7 |
| #define __DRI_BUFFER_FAKE_FRONT_RIGHT 8 |
| |
| struct dri2_drawable |
| { |
| struct dri_drawable base; |
| union dri_buffer buffers[5]; |
| int width; |
| int height; |
| int has_backbuffer; |
| int back_index; |
| int front_index; |
| }; |
| |
| static struct dri_drawable * |
| dri2CreateDrawable(VADriverContextP ctx, XID x_drawable) |
| { |
| struct dri2_drawable *dri2_drawable; |
| |
| dri2_drawable = calloc(1, sizeof(*dri2_drawable)); |
| |
| if (!dri2_drawable) |
| return NULL; |
| |
| dri2_drawable->base.x_drawable = x_drawable; |
| dri2_drawable->base.x = 0; |
| dri2_drawable->base.y = 0; |
| VA_DRI2CreateDrawable(ctx->x11_dpy, x_drawable); |
| |
| return &dri2_drawable->base; |
| } |
| |
| static void |
| dri2DestroyDrawable(VADriverContextP ctx, struct dri_drawable *dri_drawable) |
| { |
| VA_DRI2DestroyDrawable(ctx->x11_dpy, dri_drawable->x_drawable); |
| free(dri_drawable); |
| } |
| |
| static void |
| dri2SwapBuffer(VADriverContextP ctx, struct dri_drawable *dri_drawable) |
| { |
| struct dri2_drawable *dri2_drawable = (struct dri2_drawable *)dri_drawable; |
| XRectangle xrect; |
| XserverRegion region; |
| |
| if (dri2_drawable->has_backbuffer) { |
| xrect.x = 0; |
| xrect.y = 0; |
| xrect.width = dri2_drawable->width; |
| xrect.height = dri2_drawable->height; |
| |
| region = XFixesCreateRegion(ctx->x11_dpy, &xrect, 1); |
| VA_DRI2CopyRegion(ctx->x11_dpy, dri_drawable->x_drawable, region, |
| DRI2BufferFrontLeft, DRI2BufferBackLeft); |
| XFixesDestroyRegion(ctx->x11_dpy, region); |
| } |
| } |
| |
| static union dri_buffer * |
| dri2GetRenderingBuffer(VADriverContextP ctx, struct dri_drawable *dri_drawable) |
| { |
| struct dri2_drawable *dri2_drawable = (struct dri2_drawable *)dri_drawable; |
| int i; |
| int count; |
| unsigned int attachments[5]; |
| VA_DRI2Buffer *buffers; |
| |
| i = 0; |
| attachments[i++] = __DRI_BUFFER_BACK_LEFT; |
| attachments[i++] = __DRI_BUFFER_FRONT_LEFT; |
| buffers = VA_DRI2GetBuffers(ctx->x11_dpy, dri_drawable->x_drawable, |
| &dri2_drawable->width, &dri2_drawable->height, |
| attachments, i, &count); |
| assert(buffers); |
| if (buffers == NULL) |
| return NULL; |
| |
| dri2_drawable->has_backbuffer = 0; |
| |
| for (i = 0; i < count; i++) { |
| dri2_drawable->buffers[i].dri2.attachment = buffers[i].attachment; |
| dri2_drawable->buffers[i].dri2.name = buffers[i].name; |
| dri2_drawable->buffers[i].dri2.pitch = buffers[i].pitch; |
| dri2_drawable->buffers[i].dri2.cpp = buffers[i].cpp; |
| dri2_drawable->buffers[i].dri2.flags = buffers[i].flags; |
| |
| if (buffers[i].attachment == __DRI_BUFFER_BACK_LEFT) { |
| dri2_drawable->has_backbuffer = 1; |
| dri2_drawable->back_index = i; |
| } |
| |
| if (buffers[i].attachment == __DRI_BUFFER_FRONT_LEFT) |
| dri2_drawable->front_index = i; |
| } |
| |
| dri_drawable->width = dri2_drawable->width; |
| dri_drawable->height = dri2_drawable->height; |
| Xfree(buffers); |
| |
| if (dri2_drawable->has_backbuffer) |
| return &dri2_drawable->buffers[dri2_drawable->back_index]; |
| |
| return &dri2_drawable->buffers[dri2_drawable->front_index]; |
| } |
| |
| static void |
| dri2Close(VADriverContextP ctx) |
| { |
| struct dri_state *dri_state = (struct dri_state *)ctx->dri_state; |
| |
| free_drawable_hashtable(ctx); |
| assert(dri_state->fd >= 0); |
| close(dri_state->fd); |
| } |
| |
| Bool |
| isDRI2Connected(VADriverContextP ctx, char **driver_name) |
| { |
| struct dri_state *dri_state = (struct dri_state *)ctx->dri_state; |
| int major, minor; |
| int error_base; |
| int event_base; |
| char *device_name = NULL; |
| drm_magic_t magic; |
| *driver_name = NULL; |
| dri_state->fd = -1; |
| dri_state->driConnectedFlag = VA_NONE; |
| if (!VA_DRI2QueryExtension(ctx->x11_dpy, &event_base, &error_base)) |
| goto err_out; |
| |
| if (!VA_DRI2QueryVersion(ctx->x11_dpy, &major, &minor)) |
| goto err_out; |
| |
| |
| if (!VA_DRI2Connect(ctx->x11_dpy, RootWindow(ctx->x11_dpy, ctx->x11_screen), |
| driver_name, &device_name)) |
| goto err_out; |
| |
| dri_state->fd = open(device_name, O_RDWR); |
| assert(dri_state->fd >= 0); |
| |
| if (dri_state->fd < 0) |
| goto err_out; |
| |
| if (drmGetMagic(dri_state->fd, &magic)) |
| goto err_out; |
| |
| if (!VA_DRI2Authenticate(ctx->x11_dpy, RootWindow(ctx->x11_dpy, ctx->x11_screen), |
| magic)) |
| goto err_out; |
| |
| dri_state->driConnectedFlag = VA_DRI2; |
| dri_state->createDrawable = dri2CreateDrawable; |
| dri_state->destroyDrawable = dri2DestroyDrawable; |
| dri_state->swapBuffer = dri2SwapBuffer; |
| dri_state->getRenderingBuffer = dri2GetRenderingBuffer; |
| dri_state->close = dri2Close; |
| |
| return True; |
| |
| err_out: |
| if (device_name) |
| Xfree(device_name); |
| |
| if (*driver_name) |
| Xfree(*driver_name); |
| |
| if (dri_state->fd >= 0) |
| close(dri_state->fd); |
| |
| *driver_name = NULL; |
| dri_state->fd = -1; |
| |
| return False; |
| } |
| |