/* * Function: XvMCCreateSurface */ _X_EXPORT Status XvMCCreateSurface(Display * display, XvMCContext * context, XvMCSurface * surface) { Status ret; int priv_count; CARD32 *priv_data; intel_xvmc_surface_ptr intel_surf = NULL; struct intel_xvmc_context *intel_ctx; if (!display || !context) return XvMCBadContext; if (!surface) return XvMCBadSurface; intel_ctx = context->privData; if ((ret = _xvmc_create_surface(display, context, surface, &priv_count, &priv_data))) { XVMC_ERR("Unable to create XvMCSurface."); return ret; } XFree(priv_data); surface->privData = calloc(1, sizeof(struct intel_xvmc_surface)); if (!(intel_surf = surface->privData)) { PPTHREAD_MUTEX_UNLOCK(); return BadAlloc; } intel_surf->bo = drm_intel_bo_alloc(xvmc_driver->bufmgr, "surface", intel_ctx->surface_bo_size, GTT_PAGE_SIZE); if (!intel_surf->bo) { free(intel_surf); return BadAlloc; } drm_intel_bo_disable_reuse(intel_surf->bo); intel_surf = surface->privData; intel_surf->context = context; intel_surf->image = XvCreateImage(display, context->port, FOURCC_XVMC, (char *) &intel_surf->gem_handle, surface->width, surface->height); if (!intel_surf->image) { XVMC_ERR("Can't create XvImage for surface\n"); free(intel_surf); _xvmc_destroy_surface(display, surface); return BadAlloc; } return Success; }
int main(int argc, char **argv) { int fd, i; fd = drm_open_any(); bufmgr = drm_intel_bufmgr_gem_init(fd, 4096); if (!bufmgr) { fprintf(stderr, "failed to init libdrm\n"); exit(-1); } /* don't enable buffer reuse!! */ //drm_intel_bufmgr_gem_enable_reuse(bufmgr); batch = intel_batchbuffer_alloc(bufmgr, intel_get_drm_devid(fd)); assert(batch); /* put some load onto the gpu to keep the light buffers active for long * enough */ for (i = 0; i < 1000; i++) { load_bo = drm_intel_bo_alloc(bufmgr, "target bo", 1024*4096, 4096); if (!load_bo) { fprintf(stderr, "failed to alloc target buffer\n"); exit(-1); } BEGIN_BATCH(8); OUT_BATCH(XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA | XY_SRC_COPY_BLT_WRITE_RGB); OUT_BATCH((3 << 24) | /* 32 bits */ (0xcc << 16) | /* copy ROP */ 4096); OUT_BATCH(0); /* dst x1,y1 */ OUT_BATCH((1024 << 16) | 512); OUT_RELOC(load_bo, I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 0); OUT_BATCH((0 << 16) | 512); /* src x1, y1 */ OUT_BATCH(4096); OUT_RELOC(load_bo, I915_GEM_DOMAIN_RENDER, 0, 0); ADVANCE_BATCH(); intel_batchbuffer_flush(batch); drm_intel_bo_disable_reuse(load_bo); drm_intel_bo_unreference(load_bo); } drm_intel_bufmgr_destroy(bufmgr); close(fd); return 0; }
drm_intel_bo *intel_allocate_framebuffer(ScrnInfoPtr scrn, int width, int height, int cpp, int *out_stride, uint32_t *out_tiling) { intel_screen_private *intel = intel_get_screen_private(scrn); uint32_t tiling; int stride, size; drm_intel_bo *bo; intel_set_gem_max_sizes(scrn); if (intel->tiling & INTEL_TILING_FB) tiling = I915_TILING_X; else tiling = I915_TILING_NONE; retry: size = intel_compute_size(intel, width, height, intel->cpp*8, 0, &tiling, &stride); if (!intel_check_display_stride(scrn, stride, tiling)) { if (tiling != I915_TILING_NONE) { tiling = I915_TILING_NONE; goto retry; } xf86DrvMsg(scrn->scrnIndex, X_ERROR, "Front buffer stride %d kB " "exceeds display limit\n", stride / 1024); return NULL; } bo = drm_intel_bo_alloc(intel->bufmgr, "front buffer", size, 0); if (bo == NULL) return FALSE; if (tiling != I915_TILING_NONE) drm_intel_bo_set_tiling(bo, &tiling, stride); xf86DrvMsg(scrn->scrnIndex, X_INFO, "Allocated new frame buffer %dx%d stride %d, %s\n", width, height, stride, tiling == I915_TILING_NONE ? "untiled" : "tiled"); drm_intel_bo_disable_reuse(bo); *out_stride = stride; *out_tiling = tiling; return bo; }