st/dri: remove an unused-but-set variable

[mesa.git] / src / gallium / state_trackers / dri / drm / dri2.c

diff --git a/src/gallium/state_trackers/dri/drm/dri2.c b/src/gallium/state_trackers/dri/drm/dri2.c
index a9d05a80fbd395c24c4b5c9115fe013ba378a299..d491e46ab16fe4d92e73d929267b673b8e19c0b0 100644 (file)
--- a/src/gallium/state_trackers/dri/drm/dri2.c
+++ b/src/gallium/state_trackers/dri/drm/dri2.c
@@ -38,6 +38,7 @@
 #include "dri_screen.h"
 #include "dri_context.h"
 #include "dri_drawable.h"
+#include "dri2_buffer.h"
 
 /**
  * DRI2 flush extension.
@@ -51,13 +52,11 @@ static void
 dri2_invalidate_drawable(__DRIdrawable *dPriv)
 {
    struct dri_drawable *drawable = dri_drawable(dPriv);
-   struct dri_context *ctx = dri_context(dPriv->driContextPriv);
 
    dri2InvalidateDrawable(dPriv);
    drawable->dPriv->lastStamp = *drawable->dPriv->pStamp;
 
-   if (ctx)
-      ctx->st->notify_invalid_framebuffer(ctx->st, &drawable->base);
+   p_atomic_inc(&drawable->base.stamp);
 }
 
 static const __DRI2flushExtension dri2FlushExtension = {
@@ -259,6 +258,85 @@ dri2_drawable_process_buffers(struct dri_drawable *drawable,
    memcpy(drawable->old, buffers, sizeof(__DRIbuffer) * count);
 }
 
+static __DRIbuffer *
+dri2_allocate_buffer(__DRIscreen *sPriv,
+                     unsigned attachment, unsigned format,
+                     int width, int height)
+{
+   struct dri_screen *screen = dri_screen(sPriv);
+   struct dri2_buffer *buffer;
+   struct pipe_resource templ;
+   enum pipe_format pf;
+   unsigned bind = 0;
+   struct winsys_handle whandle;
+
+   switch (attachment) {
+      case __DRI_BUFFER_FRONT_LEFT:
+      case __DRI_BUFFER_FAKE_FRONT_LEFT:
+         bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
+         break;
+      case __DRI_BUFFER_BACK_LEFT:
+         bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
+         break;
+      case __DRI_BUFFER_DEPTH:
+      case __DRI_BUFFER_DEPTH_STENCIL:
+      case __DRI_BUFFER_STENCIL:
+            bind = PIPE_BIND_DEPTH_STENCIL; /* XXX sampler? */
+         break;
+   }
+
+   switch (format) {
+      case 32:
+         pf = PIPE_FORMAT_B8G8R8X8_UNORM;
+         break;
+      case 16:
+         pf = PIPE_FORMAT_Z16_UNORM;
+         break;
+      default:
+         return NULL;
+   }
+
+   buffer = CALLOC_STRUCT(dri2_buffer);
+   if (!buffer)
+      return NULL;
+
+   memset(&templ, 0, sizeof(templ));
+   templ.bind = bind;
+   templ.format = pf;
+   templ.target = PIPE_TEXTURE_2D;
+   templ.last_level = 0;
+   templ.width0 = width;
+   templ.height0 = height;
+   templ.depth0 = 1;
+   templ.array_size = 1;
+
+   buffer->resource =
+      screen->base.screen->resource_create(screen->base.screen, &templ);
+   if (!buffer->resource)
+      return NULL;
+
+   memset(&whandle, 0, sizeof(whandle));
+   whandle.type = DRM_API_HANDLE_TYPE_SHARED;
+   screen->base.screen->resource_get_handle(screen->base.screen,
+         buffer->resource, &whandle);
+
+   buffer->base.attachment = attachment;
+   buffer->base.name = whandle.handle;
+   buffer->base.cpp = util_format_get_blocksize(pf);
+   buffer->base.pitch = whandle.stride;
+
+   return &buffer->base;
+}
+
+static void
+dri2_release_buffer(__DRIscreen *sPriv, __DRIbuffer *bPriv)
+{
+   struct dri2_buffer *buffer = dri2_buffer(bPriv);
+
+   pipe_resource_reference(&buffer->resource, NULL);
+   FREE(buffer);
+}
+
 /*
  * Backend functions for st_framebuffer interface.
  */
@@ -373,7 +451,7 @@ static __DRIimage *
 dri2_create_image_from_renderbuffer(__DRIcontext *context,
                                    int renderbuffer, void *loaderPrivate)
 {
-   struct dri_context *ctx = dri_context(context->driverPrivate);
+   struct dri_context *ctx = dri_context(context);
 
    if (!ctx->st->get_resource_for_egl_image)
       return NULL;
@@ -394,6 +472,15 @@ dri2_create_image(__DRIscreen *_screen,
    enum pipe_format pf;
 
    tex_usage = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
+   if (use & __DRI_IMAGE_USE_SCANOUT)
+      tex_usage |= PIPE_BIND_SCANOUT;
+   if (use & __DRI_IMAGE_USE_SHARE)
+      tex_usage |= PIPE_BIND_SHARED;
+   if (use & __DRI_IMAGE_USE_CURSOR) {
+      if (width != 64 || height != 64)
+         return NULL;
+      tex_usage |= PIPE_BIND_CURSOR;
+   }
 
    switch (format) {
    case __DRI_IMAGE_FORMAT_RGB565:
@@ -424,6 +511,7 @@ dri2_create_image(__DRIscreen *_screen,
    templ.width0 = width;
    templ.height0 = height;
    templ.depth0 = 1;
+   templ.array_size = 1;
 
    img->texture = screen->base.screen->resource_create(screen->base.screen, &templ);
    if (!img->texture) {
@@ -467,6 +555,24 @@ dri2_query_image(__DRIimage *image, int attrib, int *value)
    }
 }
 
+static __DRIimage *
+dri2_dup_image(__DRIimage *image, void *loaderPrivate)
+{
+   __DRIimage *img;
+
+   img = CALLOC_STRUCT(__DRIimageRec);
+   if (!img)
+      return NULL;
+
+   img->texture = NULL;
+   pipe_resource_reference(&img->texture, image->texture);
+   img->level = image->level;
+   img->layer = image->layer;
+   img->loader_private = loaderPrivate;
+
+   return img;
+}
+
 static void
 dri2_destroy_image(__DRIimage *img)
 {
@@ -481,6 +587,7 @@ static struct __DRIimageExtensionRec dri2ImageExtension = {
     dri2_destroy_image,
     dri2_create_image,
     dri2_query_image,
+    dri2_dup_image,
 };
 
 /*
@@ -547,20 +654,6 @@ fail:
    return NULL;
 }
 
-static boolean
-dri2_create_context(gl_api api, const struct gl_config * visual,
-                    __DRIcontext * cPriv, void *sharedContextPrivate)
-{
-   struct dri_context *ctx = NULL;
-
-   if (!dri_create_context(api, visual, cPriv, sharedContextPrivate))
-      return FALSE;
-
-   ctx = cPriv->driverPrivate;
-
-   return TRUE;
-}
-
 static boolean
 dri2_create_buffer(__DRIscreen * sPriv,
                    __DRIdrawable * dPriv,
@@ -588,7 +681,7 @@ const struct __DriverAPIRec driDriverAPI = {
    .InitScreen = NULL,
    .InitScreen2 = dri2_init_screen,
    .DestroyScreen = dri_destroy_screen,
-   .CreateContext = dri2_create_context,
+   .CreateContext = dri_create_context,
    .DestroyContext = dri_destroy_context,
    .CreateBuffer = dri2_create_buffer,
    .DestroyBuffer = dri_destroy_buffer,
@@ -601,6 +694,9 @@ const struct __DriverAPIRec driDriverAPI = {
 
    .SwapBuffers = NULL,
    .CopySubBuffer = NULL,
+
+   .AllocateBuffer = dri2_allocate_buffer,
+   .ReleaseBuffer  = dri2_release_buffer,
 };
 
 /* This is the table of extensions that the loader will dlsym() for. */