From: Jakob Bornecrantz Date: Tue, 24 Jun 2008 12:42:12 +0000 (+0200) Subject: i915: Create a texture and surface for shared frontbuffer X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e95697758eda9b92a01a504bce823acd5201b48d;p=mesa.git i915: Create a texture and surface for shared frontbuffer --- diff --git a/src/gallium/winsys/dri/intel/intel_screen.c b/src/gallium/winsys/dri/intel/intel_screen.c index 809af2e5530..18427a4586f 100644 --- a/src/gallium/winsys/dri/intel/intel_screen.c +++ b/src/gallium/winsys/dri/intel/intel_screen.c @@ -38,10 +38,69 @@ #include "intel_drm/ws_dri_bufpool.h" #include "pipe/p_context.h" +#include "pipe/p_screen.h" +#include "pipe/p_inlines.h" #include "state_tracker/st_public.h" #include "state_tracker/st_cb_fbo.h" +static void +intelCreateSurface(struct intel_screen *intelScreen, struct pipe_winsys *winsys, unsigned handle); +static void +intelCreateSurface(struct intel_screen *intelScreen, struct pipe_winsys *winsys, unsigned handle) +{ + struct intel_be_buffer *be_buf = malloc(sizeof(*be_buf)); + struct pipe_screen *screen = intelScreen->base.screen; + struct pipe_texture *texture; + struct pipe_texture templat; + struct pipe_surface *surface; + struct pipe_buffer *buffer = &be_buf->base; + unsigned pitch; + + assert(intelScreen->front.cpp == 4); + + /* XXX create a intel_be function for this */ + { + driGenBuffers(intelScreen->base.staticPool, "front", 1, &intelScreen->front.buffer, 0, 0, 0); + driBOSetReferenced(intelScreen->front.buffer, handle); + + memset(be_buf, 0, sizeof(*be_buf)); + buffer->refcount = 1; + buffer->alignment = 0; + buffer->usage = 0; + buffer->size = driBOSize(intelScreen->front.buffer); + be_buf->driBO = intelScreen->front.buffer; + } + + memset(&templat, 0, sizeof(templat)); + templat.tex_usage |= PIPE_TEXTURE_USAGE_DISPLAY_TARGET; + templat.target = PIPE_TEXTURE_2D; + templat.last_level = 0; + templat.depth[0] = 1; + templat.format = PIPE_FORMAT_A8R8G8B8_UNORM; + templat.cpp = intelScreen->front.cpp; + templat.width[0] = intelScreen->front.width; + templat.height[0] = intelScreen->front.height; + pitch = intelScreen->front.pitch / intelScreen->front.cpp; + + texture = screen->texture_blanket(screen, + &templat, + &pitch, + buffer); + + /* Unref the buffer we don't need it anyways */ + pipe_buffer_reference(screen->winsys, &buffer, NULL); + + surface = screen->get_tex_surface(screen, + texture, + 0, + 0, + 0, + PIPE_BUFFER_USAGE_GPU_WRITE); + + intelScreen->front.texture = texture; + intelScreen->front.surface = surface; +} PUBLIC const char __driConfigOptions[] = DRI_CONF_BEGIN DRI_CONF_SECTION_PERFORMANCE @@ -157,10 +216,12 @@ intelUpdateScreenRotation(__DRIscreenPrivate * sPriv, drmI830Sarea * sarea) } #else if (intelScreen->base.staticPool) { - if (intelScreen->front.buffer) + if (intelScreen->front.buffer) { driBOUnReference(intelScreen->front.buffer); - driGenBuffers(intelScreen->base.staticPool, "front", 1, &intelScreen->front.buffer, 0, 0, 0); - driBOSetReferenced(intelScreen->front.buffer, sarea->front_bo_handle); + pipe_surface_reference(&intelScreen->front.surface, NULL); + pipe_texture_reference(&intelScreen->front.texture, NULL); + } + intelCreateSurface(intelScreen, &intelScreen->base.base, sarea->front_bo_handle); } #endif } diff --git a/src/gallium/winsys/dri/intel/intel_screen.h b/src/gallium/winsys/dri/intel/intel_screen.h index 80369179031..e62f9e71eca 100644 --- a/src/gallium/winsys/dri/intel/intel_screen.h +++ b/src/gallium/winsys/dri/intel/intel_screen.h @@ -47,6 +47,8 @@ struct intel_screen /* We create a static dri buffer for the frontbuffer. */ struct _DriBufferObject *buffer; + struct pipe_surface *surface; + struct pipe_texture *texture; char *map; /* memory map */ int offset; /* from start of video mem, in bytes */