xserver and mesa git update 28-12-2010

1 files changed, 207 insertions, 0 deletions

diff --git a/mesalib/src/mesa/state_tracker/st_cb_blit.c b/mesalib/src/mesa/state_tracker/st_cb_blit.c
new file mode 100644
index 000000000..466e1a85f
--- /dev/null
+++ b/mesalib/src/mesa/state_tracker/st_cb_blit.c
@@ -0,0 +1,207 @@
+/**************************************************************************

+ * 

+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.

+ * 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 above copyright notice and this permission notice (including the

+ * next paragraph) shall be included in all copies or substantial portions

+ * of the Software.

+ * 

+ * 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 TUNGSTEN GRAPHICS 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.

+ * 

+ **************************************************************************/

+

+ /*

+  * Authors:

+  *   Brian Paul

+  */

+

+#include "main/imports.h"

+#include "main/image.h"

+#include "main/macros.h"

+

+#include "st_context.h"

+#include "st_texture.h"

+#include "st_cb_blit.h"

+#include "st_cb_fbo.h"

+

+#include "util/u_blit.h"

+

+

+void

+st_init_blit(struct st_context *st)

+{

+   st->blit = util_create_blit(st->pipe, st->cso_context);

+}

+

+

+void

+st_destroy_blit(struct st_context *st)

+{

+   util_destroy_blit(st->blit);

+   st->blit = NULL;

+}

+

+

+#if FEATURE_EXT_framebuffer_blit

+

+static void

+st_BlitFramebuffer(struct gl_context *ctx,

+                   GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,

+                   GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,

+                   GLbitfield mask, GLenum filter)

+{

+   const GLbitfield depthStencil = (GL_DEPTH_BUFFER_BIT |

+                                    GL_STENCIL_BUFFER_BIT);

+   struct st_context *st = st_context(ctx);

+   const uint pFilter = ((filter == GL_NEAREST)

+                         ? PIPE_TEX_MIPFILTER_NEAREST

+                         : PIPE_TEX_MIPFILTER_LINEAR);

+   struct gl_framebuffer *readFB = ctx->ReadBuffer;

+   struct gl_framebuffer *drawFB = ctx->DrawBuffer;

+

+   if (!_mesa_clip_blit(ctx, &srcX0, &srcY0, &srcX1, &srcY1,

+                        &dstX0, &dstY0, &dstX1, &dstY1)) {

+      return; /* nothing to draw/blit */

+   }

+

+   if (st_fb_orientation(drawFB) == Y_0_TOP) {

+      /* invert Y for dest */

+      dstY0 = drawFB->Height - dstY0;

+      dstY1 = drawFB->Height - dstY1;

+   }

+

+   if (st_fb_orientation(readFB) == Y_0_TOP) {

+      /* invert Y for src */

+      srcY0 = readFB->Height - srcY0;

+      srcY1 = readFB->Height - srcY1;

+   }

+

+   if (srcY0 > srcY1 && dstY0 > dstY1) {

+      /* Both src and dst are upside down.  Swap Y to make it

+       * right-side up to increase odds of using a fast path.

+       * Recall that all Gallium raster coords have Y=0=top.

+       */

+      GLint tmp;

+      tmp = srcY0;

+      srcY0 = srcY1;

+      srcY1 = tmp;

+      tmp = dstY0;

+      dstY0 = dstY1;

+      dstY1 = tmp;

+   }

+

+   if (mask & GL_COLOR_BUFFER_BIT) {

+      struct gl_renderbuffer_attachment *srcAtt =

+         &readFB->Attachment[readFB->_ColorReadBufferIndex];

+

+      if(srcAtt->Type == GL_TEXTURE) {

+         struct st_texture_object *srcObj =

+            st_texture_object(srcAtt->Texture);

+         struct st_renderbuffer *dstRb =

+            st_renderbuffer(drawFB->_ColorDrawBuffers[0]);

+         struct pipe_surface *dstSurf = dstRb->surface;

+

+         if (!srcObj->pt)

+            return;

+

+         util_blit_pixels(st->blit, srcObj->pt, srcAtt->TextureLevel,

+                          srcX0, srcY0, srcX1, srcY1,

+                          srcAtt->Zoffset + srcAtt->CubeMapFace,

+                          dstSurf, dstX0, dstY0, dstX1, dstY1,

+                          0.0, pFilter);

+      }

+      else {

+         struct st_renderbuffer *srcRb =

+            st_renderbuffer(readFB->_ColorReadBuffer);

+         struct st_renderbuffer *dstRb =

+            st_renderbuffer(drawFB->_ColorDrawBuffers[0]);

+         struct pipe_surface *srcSurf = srcRb->surface;

+         struct pipe_surface *dstSurf = dstRb->surface;

+

+         util_blit_pixels(st->blit,

+                          srcRb->texture, srcSurf->u.tex.level,

+                          srcX0, srcY0, srcX1, srcY1,

+                          srcSurf->u.tex.first_layer,

+                          dstSurf, dstX0, dstY0, dstX1, dstY1,

+                          0.0, pFilter);

+      }

+   }

+

+   if (mask & depthStencil) {

+      /* depth and/or stencil blit */

+

+      /* get src/dst depth surfaces */

+      struct gl_renderbuffer_attachment *srcDepth =

+         &readFB->Attachment[BUFFER_DEPTH];

+      struct gl_renderbuffer_attachment *dstDepth =

+         &drawFB->Attachment[BUFFER_DEPTH];

+      struct gl_renderbuffer_attachment *srcStencil =

+         &readFB->Attachment[BUFFER_STENCIL];

+      struct gl_renderbuffer_attachment *dstStencil =

+         &drawFB->Attachment[BUFFER_STENCIL];

+

+      struct st_renderbuffer *srcDepthRb =

+         st_renderbuffer(readFB->Attachment[BUFFER_DEPTH].Renderbuffer);

+      struct st_renderbuffer *dstDepthRb = 

+         st_renderbuffer(drawFB->Attachment[BUFFER_DEPTH].Renderbuffer);

+      struct pipe_surface *dstDepthSurf =

+         dstDepthRb ? dstDepthRb->surface : NULL;

+

+      if ((mask & depthStencil) == depthStencil &&

+          st_is_depth_stencil_combined(srcDepth, srcStencil) &&

+          st_is_depth_stencil_combined(dstDepth, dstStencil)) {

+

+         /* Blitting depth and stencil values between combined

+          * depth/stencil buffers.  This is the ideal case for such buffers.

+          */

+         util_blit_pixels(st->blit,

+                          srcDepthRb->texture,

+                          srcDepthRb->surface->u.tex.level,

+                          srcX0, srcY0, srcX1, srcY1,

+                          srcDepthRb->surface->u.tex.first_layer,

+                          dstDepthSurf, dstX0, dstY0, dstX1, dstY1,

+                          0.0, pFilter);

+      }

+      else {

+         /* blitting depth and stencil separately */

+

+         if (mask & GL_DEPTH_BUFFER_BIT) {

+            util_blit_pixels(st->blit, srcDepthRb->texture,

+                             srcDepthRb->surface->u.tex.level,

+                             srcX0, srcY0, srcX1, srcY1,

+                             srcDepthRb->surface->u.tex.first_layer,

+                             dstDepthSurf, dstX0, dstY0, dstX1, dstY1,

+                             0.0, pFilter);

+         }

+

+         if (mask & GL_STENCIL_BUFFER_BIT) {

+            /* blit stencil only */

+            _mesa_problem(ctx, "st_BlitFramebuffer(STENCIL) not completed");

+         }

+      }

+   }

+}

+

+

+void

+st_init_blit_functions(struct dd_function_table *functions)

+{

+   functions->BlitFramebuffer = st_BlitFramebuffer;

+}

+

+#endif /* FEATURE_EXT_framebuffer_blit */