intel_tex.c

mesa-6.5-minigui源码

/**************************************************************************
 * 
 * Copyright 2003 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.
 * 
 **************************************************************************/

#include "glheader.h"
#include "mtypes.h"
#include "imports.h"
#include "macros.h"
#include "simple_list.h"
#include "enums.h"
#include "image.h"
#include "texstore.h"
#include "texformat.h"
#include "teximage.h"
#include "texmem.h"
#include "texobj.h"
#include "swrast/swrast.h"

#include "mm.h"

#include "intel_screen.h"
#include "intel_batchbuffer.h"
#include "intel_context.h"
#include "intel_tex.h"
#include "intel_ioctl.h"



static GLboolean
intelValidateClientStorage( intelContextPtr intel, GLenum target,
			    GLint internalFormat,
			    GLint srcWidth, GLint srcHeight, 
			    GLenum format, GLenum type,  const void *pixels,
			    const struct gl_pixelstore_attrib *packing,
			    struct gl_texture_object *texObj,
			    struct gl_texture_image *texImage)

{
   GLcontext *ctx = &intel->ctx;
   int texelBytes;

   if (0)
      fprintf(stderr, "intformat %s format %s type %s\n",
	      _mesa_lookup_enum_by_nr( internalFormat ),
	      _mesa_lookup_enum_by_nr( format ),
	      _mesa_lookup_enum_by_nr( type ));

   if (!ctx->Unpack.ClientStorage)
      return 0;

   if (ctx->_ImageTransferState ||
       texImage->IsCompressed ||
       texObj->GenerateMipmap)
      return 0;


   /* This list is incomplete
    */
   switch ( internalFormat ) {
   case GL_RGBA:
      if ( format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8_REV ) {
	 texImage->TexFormat = &_mesa_texformat_argb8888;
	 texelBytes = 4;
      }
      else
	 return 0;
      break;

   case GL_RGB:
      if ( format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5 ) {
	 texImage->TexFormat = &_mesa_texformat_rgb565;
	 texelBytes = 2;
      }
      else
	 return 0;
      break;

   case GL_YCBCR_MESA:
      if ( format == GL_YCBCR_MESA && 
	   type == GL_UNSIGNED_SHORT_8_8_REV_APPLE ) {
	 texImage->TexFormat = &_mesa_texformat_ycbcr_rev;
	 texelBytes = 2;
      }
      else if ( format == GL_YCBCR_MESA && 
		(type == GL_UNSIGNED_SHORT_8_8_APPLE || 
		 type == GL_UNSIGNED_BYTE)) {
	 texImage->TexFormat = &_mesa_texformat_ycbcr;
	 texelBytes = 2;
      }
      else
	 return 0;
      break;
      
	 
   default:
      return 0;
   }

   /* Could deal with these packing issues, but currently don't:
    */
   if (packing->SkipPixels || 
       packing->SkipRows || 
       packing->SwapBytes ||
       packing->LsbFirst) {
      return 0;
   }

   {      
      GLint srcRowStride = _mesa_image_row_stride(packing, srcWidth,
						  format, type);

      
      if (0)
	 fprintf(stderr, "%s: srcRowStride %d/%x\n", 
		 __FUNCTION__, srcRowStride, srcRowStride);

      /* Could check this later in upload, pitch restrictions could be
       * relaxed, but would need to store the image pitch somewhere,
       * as packing details might change before image is uploaded:
       */
      if (!intelIsAgpMemory( intel, pixels, srcHeight * srcRowStride ) ||
	  (srcRowStride & 63))
	 return 0;


      /* Have validated that _mesa_transfer_teximage would be a straight
       * memcpy at this point.  NOTE: future calls to TexSubImage will
       * overwrite the client data.  This is explicitly mentioned in the
       * extension spec.
       */
      texImage->Data = (void *)pixels;
      texImage->IsClientData = GL_TRUE;
      texImage->RowStride = srcRowStride / texelBytes;
      return 1;
   }
}

 

static void intelTexImage1D( GLcontext *ctx, GLenum target, GLint level,
			    GLint internalFormat,
			    GLint width, GLint border,
			    GLenum format, GLenum type, const GLvoid *pixels,
			    const struct gl_pixelstore_attrib *packing,
			    struct gl_texture_object *texObj,
			    struct gl_texture_image *texImage )
{
   driTextureObject * t = (driTextureObject *) texObj->DriverData;

   assert(t);
   intelFlush( ctx );
   driSwapOutTextureObject( t );

   texImage->IsClientData = GL_FALSE;

   _mesa_store_teximage1d( ctx, target, level, internalFormat,
			   width, border, format, type,
			   pixels, packing, texObj, texImage );

   t->dirty_images[0] |= (1 << level);
}

static void intelTexSubImage1D( GLcontext *ctx, 
			       GLenum target,
			       GLint level,	
			       GLint xoffset,
				GLsizei width,
			       GLenum format, GLenum type,
			       const GLvoid *pixels,
			       const struct gl_pixelstore_attrib *packing,
			       struct gl_texture_object *texObj,
			       struct gl_texture_image *texImage )
{
   driTextureObject * t = (driTextureObject *) texObj->DriverData;

   assert(t);
   intelFlush( ctx );
   driSwapOutTextureObject( t );

   _mesa_store_texsubimage1d(ctx, target, level, xoffset, width, 
			     format, type, pixels, packing, texObj,
			     texImage);
}


/* Handles 2D, CUBE, RECT:
 */
static void intelTexImage2D( GLcontext *ctx, GLenum target, GLint level,
			    GLint internalFormat,
			    GLint width, GLint height, GLint border,
			    GLenum format, GLenum type, const GLvoid *pixels,
			    const struct gl_pixelstore_attrib *packing,
			    struct gl_texture_object *texObj,
			    struct gl_texture_image *texImage )
{
   driTextureObject * t = (driTextureObject *) texObj->DriverData;
   GLuint face;

   /* which cube face or ordinary 2D image */
   switch (target) {
   case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
   case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
   case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
   case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
   case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
   case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
      face = (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X;
      ASSERT(face < 6);
      break;
   default:
      face = 0;
   }

   assert(t);
   intelFlush( ctx );
   driSwapOutTextureObject( t );
   texImage->IsClientData = GL_FALSE;

   if (intelValidateClientStorage( INTEL_CONTEXT(ctx), target, 
				   internalFormat, 
				   width, height, 
				   format, type, pixels, 
				   packing, texObj, texImage)) {
      if (INTEL_DEBUG & DEBUG_TEXTURE)
	 fprintf(stderr, "%s: Using client storage\n", __FUNCTION__); 
   }
   else {
      _mesa_store_teximage2d( ctx, target, level, internalFormat,
			      width, height, border, format, type,
			      pixels, packing, texObj, texImage );

      t->dirty_images[face] |= (1 << level);
   }
}

static void intelTexSubImage2D( GLcontext *ctx, 
			       GLenum target,
			       GLint level,	
			       GLint xoffset, GLint yoffset,
			       GLsizei width, GLsizei height,
			       GLenum format, GLenum type,
			       const GLvoid *pixels,
			       const struct gl_pixelstore_attrib *packing,
			       struct gl_texture_object *texObj,
			       struct gl_texture_image *texImage )
{
   driTextureObject * t = (driTextureObject *) texObj->DriverData;
   GLuint face;

   /* which cube face or ordinary 2D image */
   switch (target) {
   case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
   case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
   case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
   case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
   case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
   case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
      face = (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X;
      ASSERT(face < 6);
      break;
   default:
      face = 0;
   }

   if (texImage->IsClientData &&
       (char *)pixels == (char *)texImage->Data + 
       ((xoffset + yoffset * texImage->RowStride) * 
	texImage->TexFormat->TexelBytes)) {

      /* Notification only - no upload required */
   }
   else {
      assert( t ); /* this _should_ be true */
      intelFlush( ctx );
      driSwapOutTextureObject( t );

      _mesa_store_texsubimage2d(ctx, target, level, xoffset, yoffset, width, 
				height, format, type, pixels, packing, texObj,
				texImage);

      t->dirty_images[face] |= (1 << level);
   }
}

static void intelCompressedTexImage2D( GLcontext *ctx, GLenum target, GLint level,
                              GLint internalFormat,
                              GLint width, GLint height, GLint border,
                              GLsizei imageSize, const GLvoid *data,
                              struct gl_texture_object *texObj,
                              struct gl_texture_image *texImage )
{
   driTextureObject * t = (driTextureObject *) texObj->DriverData;
   GLuint face;

   /* which cube face or ordinary 2D image */
   switch (target) {
   case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
   case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
   case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
   case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
   case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
   case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
      face = (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X;
      ASSERT(face < 6);
      break;
   default:
      face = 0;
   }

   assert(t);
   intelFlush( ctx );
   
   driSwapOutTextureObject( t );
   texImage->IsClientData = GL_FALSE;

   if (INTEL_DEBUG & DEBUG_TEXTURE)
     fprintf(stderr, "%s: Using normal storage\n", __FUNCTION__); 
   
   _mesa_store_compressed_teximage2d(ctx, target, level, internalFormat, width,
				     height, border, imageSize, data, texObj, texImage);
   
   t->dirty_images[face] |= (1 << level);
}


static void intelCompressedTexSubImage2D( GLcontext *ctx, GLenum target, GLint level,
                                 GLint xoffset, GLint yoffset,
                                 GLsizei width, GLsizei height,
                                 GLenum format,
                                 GLsizei imageSize, const GLvoid *data,
                                 struct gl_texture_object *texObj,
                                 struct gl_texture_image *texImage )
{
   driTextureObject * t = (driTextureObject *) texObj->DriverData;
   GLuint face;


   /* which cube face or ordinary 2D image */
   switch (target) {
   case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
   case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
   case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
   case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
   case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
   case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
      face = (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X;
      ASSERT(face < 6);
      break;
   default:
      face = 0;
   }

   assert( t ); /* this _should_ be true */
   intelFlush( ctx );
   driSwapOutTextureObject( t );
   
   _mesa_store_compressed_texsubimage2d(ctx, target, level, xoffset, yoffset, width,
					height, format, imageSize, data, texObj, texImage);
   
   t->dirty_images[face] |= (1 << level);
}


static void intelTexImage3D( GLcontext *ctx, GLenum target, GLint level,
                            GLint internalFormat,
                            GLint width, GLint height, GLint depth,
                            GLint border,
                            GLenum format, GLenum type, const GLvoid *pixels,
                            const struct gl_pixelstore_attrib *packing,
                            struct gl_texture_object *texObj,
                            struct gl_texture_image *texImage )
{
   driTextureObject * t = (driTextureObject *) texObj->DriverData;

   assert(t);
   driSwapOutTextureObject( t );
   texImage->IsClientData = GL_FALSE;

   _mesa_store_teximage3d(ctx, target, level, internalFormat,
			  width, height, depth, border,
			  format, type, pixels,
			  &ctx->Unpack, texObj, texImage);
   
   t->dirty_images[0] |= (1 << level);
}


static void
intelTexSubImage3D( GLcontext *ctx, GLenum target, GLint level,
                   GLint xoffset, GLint yoffset, GLint zoffset,
                   GLsizei width, GLsizei height, GLsizei depth,
                   GLenum format, GLenum type,
                   const GLvoid *pixels,
                   const struct gl_pixelstore_attrib *packing,
                   struct gl_texture_object *texObj,
                   struct gl_texture_image *texImage )
{
   driTextureObject * t = (driTextureObject *) texObj->DriverData;

   assert( t ); /* this _should_ be true */
   driSwapOutTextureObject( t );

   _mesa_store_texsubimage3d(ctx, target, level, xoffset, yoffset, zoffset,
                             width, height, depth,
                             format, type, pixels, packing, texObj, texImage);

   t->dirty_images[0] |= (1 << level);
}




static void intelDeleteTexture( GLcontext *ctx, struct gl_texture_object *tObj )