C++ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH函数代码示例

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本文整理汇总了C++中ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH函数的典型用法代码示例。如果您正苦于以下问题：C++ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH函数的具体用法？C++ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH怎么用？C++ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: _mesa_AlphaFunc

void
_mesa_AlphaFunc( GLenum func, GLclampf ref )
{
   GET_CURRENT_CONTEXT(ctx);
   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glAlphaFunc");

   switch (func) {
      case GL_NEVER:
      case GL_LESS:
      case GL_EQUAL:
      case GL_LEQUAL:
      case GL_GREATER:
      case GL_NOTEQUAL:
      case GL_GEQUAL:
      case GL_ALWAYS:
         ctx->Color.AlphaFunc = func;
         if (ref <= 0.0)
            ctx->Color.AlphaRef = (GLubyte) 0;
         else if (ref >= 1.0)
            ctx->Color.AlphaRef = (GLubyte) 255;
         else
            CLAMPED_FLOAT_COLOR_TO_UBYTE_COLOR(ctx->Color.AlphaRef, ref);
         if (ctx->Driver.AlphaFunc) {
            (*ctx->Driver.AlphaFunc)(ctx, func, ctx->Color.AlphaRef);
         }
         break;
      default:
         gl_error( ctx, GL_INVALID_ENUM, "glAlphaFunc(func)" );
         break;
   }
}

开发者ID:wwzbwwzb，项目名称:fbdri，代码行数:31，代码来源:alpha.c

示例2: _mesa_CopyConvolutionFilter2D

void
_mesa_CopyConvolutionFilter2D(GLenum target, GLenum internalFormat, GLint x, GLint y, GLsizei width, GLsizei height)
{
   GLint baseFormat;
   GET_CURRENT_CONTEXT(ctx);
   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

   if (target != GL_CONVOLUTION_2D) {
      _mesa_error(ctx, GL_INVALID_ENUM, "glCopyConvolutionFilter2D(target)");
      return;
   }

   baseFormat = base_filter_format(internalFormat);
   if (baseFormat < 0 || baseFormat == GL_COLOR_INDEX) {
      _mesa_error(ctx, GL_INVALID_ENUM, "glCopyConvolutionFilter2D(internalFormat)");
      return;
   }

   if (width < 0 || width > MAX_CONVOLUTION_WIDTH) {
      _mesa_error(ctx, GL_INVALID_VALUE, "glCopyConvolutionFilter2D(width)");
      return;
   }
   if (height < 0 || height > MAX_CONVOLUTION_HEIGHT) {
      _mesa_error(ctx, GL_INVALID_VALUE, "glCopyConvolutionFilter2D(height)");
      return;
   }

   ctx->Driver.CopyConvolutionFilter2D( ctx, target, internalFormat, x, y, 
					width, height );

}

开发者ID:DavidGriffith，项目名称:finx，代码行数:31，代码来源:convolve.c

示例3: _mesa_Ortho

/**
 * Apply an orthographic projection matrix.
 *
 * \param left left clipping plane coordinate.
 * \param right right clipping plane coordinate.
 * \param bottom bottom clipping plane coordinate.
 * \param top top clipping plane coordinate.
 * \param nearval distance to the near clipping plane.
 * \param farval distance to the far clipping plane.
 *
 * \sa glOrtho().
 *
 * Flushes vertices and validates parameters. Calls _math_matrix_ortho() with
 * the top matrix of the current matrix stack and sets
 * __GLcontextRec::NewState.
 */
void GLAPIENTRY
_mesa_Ortho( GLdouble left, GLdouble right,
             GLdouble bottom, GLdouble top,
             GLdouble nearval, GLdouble farval )
{
   GET_CURRENT_CONTEXT(ctx);
   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

   if (MESA_VERBOSE & VERBOSE_API)
      _mesa_debug(ctx, "glOrtho(%f, %f, %f, %f, %f, %f)\n",
                  left, right, bottom, top, nearval, farval);

   if (left == right ||
       bottom == top ||
       nearval == farval)
   {
      _mesa_error( ctx,  GL_INVALID_VALUE, "glOrtho" );
      return;
   }

   _math_matrix_ortho( ctx->CurrentStack->Top,
                       (GLfloat) left, (GLfloat) right, 
		       (GLfloat) bottom, (GLfloat) top, 
		       (GLfloat) nearval, (GLfloat) farval );
   ctx->NewState |= ctx->CurrentStack->DirtyFlag;
}

开发者ID:mariuz，项目名称:haiku，代码行数:42，代码来源:matrix.c

示例4: _mesa_PrioritizeTextures

/**
 * Set texture priorities.
 * 
 * \param n number of textures.
 * \param texName texture names.
 * \param priorities corresponding texture priorities.
 * 
 * \sa glPrioritizeTextures().
 * 
 * Looks up each texture in the hash, clamps the corresponding priority between
 * 0.0 and 1.0, and calls dd_function_table::PrioritizeTexture.
 */
void GLAPIENTRY
_mesa_PrioritizeTextures( GLsizei n, const GLuint *texName,
                          const GLclampf *priorities )
{
   GET_CURRENT_CONTEXT(ctx);
   GLint i;
   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

   if (n < 0) {
      _mesa_error( ctx, GL_INVALID_VALUE, "glPrioritizeTextures" );
      return;
   }

   if (!priorities)
      return;

   for (i = 0; i < n; i++) {
      if (texName[i] > 0) {
         struct gl_texture_object *t = _mesa_lookup_texture(ctx, texName[i]);
         if (t) {
            t->Priority = CLAMP( priorities[i], 0.0F, 1.0F );
         }
      }
   }

   ctx->NewState |= _NEW_TEXTURE;
}

开发者ID:jay8muel，项目名称:Renderfusion，代码行数:39，代码来源:texobj.c

示例5: _mesa_GetCompressedTexImageARB

void GLAPIENTRY
_mesa_GetCompressedTexImageARB(GLenum target, GLint level, GLvoid *img)
{
   struct gl_texture_object *texObj;
   struct gl_texture_image *texImage;
   GET_CURRENT_CONTEXT(ctx);
   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

   if (getcompressedteximage_error_check(ctx, target, level, img)) {
      return;
   }

   if (_mesa_is_bufferobj(ctx->Pack.BufferObj) && !img) {
      /* not an error, do nothing */
      return;
   }

   texObj = _mesa_get_current_tex_object(ctx, target);
   texImage = _mesa_select_tex_image(ctx, texObj, target, level);

   if (MESA_VERBOSE & (VERBOSE_API | VERBOSE_TEXTURE)) {
      _mesa_debug(ctx,
                  "glGetCompressedTexImage(tex %u) format = %s, w=%d, h=%d\n",
                  texObj->Name,
                  _mesa_get_format_name(texImage->TexFormat),
                  texImage->Width, texImage->Height);
   }

   _mesa_lock_texture(ctx, texObj);
   {
      ctx->Driver.GetCompressedTexImage(ctx, target, level, img,
                                        texObj, texImage);
   }
   _mesa_unlock_texture(ctx, texObj);
}

开发者ID:MttDs，项目名称:new-rexeno-tindpe，代码行数:35，代码来源:texgetimage.c

示例6: _mesa_Viewport

/**
 * Set the viewport.
 * 
 * \param x, y coordinates of the lower-left corner of the viewport rectangle.
 * \param width width of the viewport rectangle.
 * \param height height of the viewport rectangle.
 *
 * \sa Called via glViewport() or display list execution.
 *
 * Flushes the vertices and calls _mesa_set_viewport() with the given
 * parameters.
 */
void GLAPIENTRY
_mesa_Viewport( GLint x, GLint y, GLsizei width, GLsizei height )
{
   GET_CURRENT_CONTEXT(ctx);
   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
   _mesa_set_viewport(ctx, x, y, width, height);
}

开发者ID:mariuz，项目名称:haiku，代码行数:19，代码来源:matrix.c

示例7: _mesa_LogicOp

void
_mesa_LogicOp( GLenum opcode )
{
   GET_CURRENT_CONTEXT(ctx);
   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glLogicOp");
   switch (opcode) {
      case GL_CLEAR:
      case GL_SET:
      case GL_COPY:
      case GL_COPY_INVERTED:
      case GL_NOOP:
      case GL_INVERT:
      case GL_AND:
      case GL_NAND:
      case GL_OR:
      case GL_NOR:
      case GL_XOR:
      case GL_EQUIV:
      case GL_AND_REVERSE:
      case GL_AND_INVERTED:
      case GL_OR_REVERSE:
      case GL_OR_INVERTED:
         ctx->Color.LogicOp = opcode;
         ctx->NewState |= NEW_RASTER_OPS;
	 return;
      default:
         gl_error( ctx, GL_INVALID_ENUM, "glLogicOp" );
	 return;
   }
}

开发者ID:OS2World，项目名称:LIB-VIDEO-MGL，代码行数:30，代码来源:logic.c

示例8: _mesa_PopMatrix

/**
 * Pop the current matrix stack.
 *
 * \sa glPopMatrix().
 * 
 * Flushes the vertices, verifies the current matrix stack is not empty, and
 * moves the stack head down. Marks __GLcontextRec::NewState with the dirty
 * stack flag.
 */
void GLAPIENTRY
_mesa_PopMatrix( void )
{
   GET_CURRENT_CONTEXT(ctx);
   struct gl_matrix_stack *stack = ctx->CurrentStack;
   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

   if (MESA_VERBOSE&VERBOSE_API)
      _mesa_debug(ctx, "glPopMatrix %s\n",
                  _mesa_lookup_enum_by_nr(ctx->Transform.MatrixMode));

   if (stack->Depth == 0) {
      if (ctx->Transform.MatrixMode == GL_TEXTURE) {
         _mesa_error(ctx,  GL_STACK_UNDERFLOW,
                     "glPopMatrix(mode=GL_TEXTURE, unit=%d)",
                      ctx->Texture.CurrentUnit);
      }
      else {
         _mesa_error(ctx,  GL_STACK_UNDERFLOW, "glPopMatrix(mode=%s)",
                     _mesa_lookup_enum_by_nr(ctx->Transform.MatrixMode));
      }
      return;
   }
   stack->Depth--;
   stack->Top = &(stack->Stack[stack->Depth]);
   ctx->NewState |= stack->DirtyFlag;
}

开发者ID:mariuz，项目名称:haiku，代码行数:36，代码来源:matrix.c

示例9: _mesa_LockArraysEXT

void GLAPIENTRY
_mesa_LockArraysEXT(GLint first, GLsizei count)
{
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

    if (MESA_VERBOSE & VERBOSE_API)
        _mesa_debug(ctx, "glLockArrays %d %d\n", first, count);

    if (first == 0 && count > 0 &&
            count <= (GLint) ctx->Const.MaxArrayLockSize) {
        ctx->Array.LockFirst = first;
        ctx->Array.LockCount = count;
    }
    else {
        ctx->Array.LockFirst = 0;
        ctx->Array.LockCount = 0;
    }

    ctx->NewState |= _NEW_ARRAY;
    ctx->Array.NewState |= _NEW_ARRAY_ALL;

    if (ctx->Driver.LockArraysEXT)
        ctx->Driver.LockArraysEXT( ctx, first, count );
}

开发者ID:BackupTheBerlios，项目名称:dri-ex-svn，代码行数:25，代码来源:varray.c

示例10: _mesa_FogCoordPointerEXT

void GLAPIENTRY
_mesa_FogCoordPointerEXT(GLenum type, GLsizei stride, const GLvoid *ptr)
{
    GLint elementSize;
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

    if (stride < 0) {
        _mesa_error( ctx, GL_INVALID_VALUE, "glFogCoordPointer(stride)" );
        return;
    }

    switch (type) {
    case GL_FLOAT:
        elementSize = sizeof(GLfloat);
        break;
    case GL_DOUBLE:
        elementSize = sizeof(GLdouble);
        break;
    default:
        _mesa_error( ctx, GL_INVALID_ENUM, "glFogCoordPointer(type)" );
        return;
    }

    update_array(ctx, &ctx->Array.FogCoord, _NEW_ARRAY_FOGCOORD,
                 elementSize, 1, type, stride, GL_FALSE, ptr);

    if (ctx->Driver.FogCoordPointer)
        ctx->Driver.FogCoordPointer( ctx, type, stride, ptr );
}

开发者ID:BackupTheBerlios，项目名称:dri-ex-svn，代码行数:30，代码来源:varray.c

示例11: _mesa_PixelTexGenSGIX

void
_mesa_PixelTexGenSGIX(GLenum mode)
{
   GET_CURRENT_CONTEXT(ctx);
   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glPixelTexGenSGIX");

   switch (mode) {
      case GL_NONE:
         ctx->Pixel.FragmentRgbSource = GL_PIXEL_GROUP_COLOR_SGIS;
         ctx->Pixel.FragmentAlphaSource = GL_PIXEL_GROUP_COLOR_SGIS;
         break;
      case GL_ALPHA:
         ctx->Pixel.FragmentRgbSource = GL_PIXEL_GROUP_COLOR_SGIS;
         ctx->Pixel.FragmentAlphaSource = GL_CURRENT_RASTER_COLOR;
         break;
      case GL_RGB:
         ctx->Pixel.FragmentRgbSource = GL_CURRENT_RASTER_COLOR;
         ctx->Pixel.FragmentAlphaSource = GL_PIXEL_GROUP_COLOR_SGIS;
         break;
      case GL_RGBA:
         ctx->Pixel.FragmentRgbSource = GL_CURRENT_RASTER_COLOR;
         ctx->Pixel.FragmentAlphaSource = GL_CURRENT_RASTER_COLOR;
         break;
      default:
         gl_error(ctx, GL_INVALID_ENUM, "glPixelTexGenSGIX(mode)");
         return;
   }
}

开发者ID:wwzbwwzb，项目名称:fbdri，代码行数:28，代码来源:pixeltex.c

示例12: glDrawElements

void glDrawElements(GLenum mode, GLsizei count,
                    GLenum type, const GLvoid *indices)
{
  GET_CURRENT_CONTEXT(ctx);
  ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

  if (!(ctx->clientstate_flags & GL_VERTEX_ARRAY))
    return;

  _math_matrix_mul_matrix(&ctx->model_projection_matrix,
                          &ctx->viewport.window_map,
                          ctx->projection_matrix_stack.top);
  _math_matrix_mul_matrix(&ctx->model_projection_matrix,
                          &ctx->model_projection_matrix,
                          ctx->modelview_matrix_stack.top);
  switch (mode) {
  case GL_POINTS:
  case GL_LINES:
  case GL_TRIANGLES:
  case GL_QUADS:
    break;
  default:
    _sgl_error(ctx, GL_INVALID_ENUM, "glDrawElements(): Invalid mode\n");
    return;
  }

  ctx->varray.mode = mode;
  ctx->varray.count = count;
  ctx->varray.type = type;
  ctx->varray.indices_ptr = indices;

  ctx->render_state.type = GL_VERTEX_ARRAY;
  _sgl_pipeline_iteration();
}

开发者ID:aitjcize，项目名称:SGL，代码行数:34，代码来源:geometry.c

示例13: _mesa_StencilFunc

void
_mesa_StencilFunc( GLenum func, GLint ref, GLuint mask )
{
   GET_CURRENT_CONTEXT(ctx);
   GLint maxref;

   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glStencilFunc");

   switch (func) {
      case GL_NEVER:
      case GL_LESS:
      case GL_LEQUAL:
      case GL_GREATER:
      case GL_GEQUAL:
      case GL_EQUAL:
      case GL_NOTEQUAL:
      case GL_ALWAYS:
         ctx->Stencil.Function = func;
         break;
      default:
         gl_error( ctx, GL_INVALID_ENUM, "glStencilFunc" );
         return;
   }

   maxref = (1 << STENCIL_BITS) - 1;
   ctx->Stencil.Ref = (GLstencil) CLAMP( ref, 0, maxref );
   ctx->Stencil.ValueMask = (GLstencil) mask;

   if (ctx->Driver.StencilFunc) {
      (*ctx->Driver.StencilFunc)( ctx, func, ctx->Stencil.Ref, mask );
   }
}

开发者ID:wwzbwwzb，项目名称:fbdri，代码行数:32，代码来源:stencil.c

示例14: _mesa_ReadPixels

void GLAPIENTRY
_mesa_ReadPixels( GLint x, GLint y, GLsizei width, GLsizei height,
		  GLenum format, GLenum type, GLvoid *pixels )
{
   GET_CURRENT_CONTEXT(ctx);
   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

   if (width < 0 || height < 0) {
      _mesa_error( ctx, GL_INVALID_VALUE,
                   "glReadPixels(width=%d height=%d)", width, height );
      return;
   }

   if (ctx->NewState)
      _mesa_update_state(ctx);

   if (error_check_format_type(ctx, format, type, GL_FALSE)) {
      /* found an error */
      return;
   }

   if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
      _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
                  "glReadPixels(incomplete framebuffer)" );
      return;
   }

   if (!_mesa_source_buffer_exists(ctx, format)) {
      _mesa_error(ctx, GL_INVALID_OPERATION, "glReadPixels(no readbuffer)");
      return;
   }

   ctx->Driver.ReadPixels(ctx, x, y, width, height,
			  format, type, &ctx->Pack, pixels);
}

开发者ID:Magister，项目名称:x11rdp_xorg71，代码行数:35，代码来源:drawpix.c

示例15: _mesa_LockArraysEXT

void GLAPIENTRY
_mesa_LockArraysEXT(GLint first, GLsizei count)
{
   GET_CURRENT_CONTEXT(ctx);
   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

   if (MESA_VERBOSE & VERBOSE_API)
      _mesa_debug(ctx, "glLockArrays %d %d\n", first, count);

   if (first < 0) {
      _mesa_error( ctx, GL_INVALID_VALUE, "glLockArraysEXT(first)" );
      return;
   }
   if (count <= 0) {
      _mesa_error( ctx, GL_INVALID_VALUE, "glLockArraysEXT(count)" );
      return;
   }
   if (ctx->Array.LockCount != 0) {
      _mesa_error( ctx, GL_INVALID_OPERATION, "glLockArraysEXT(reentry)" );
      return;
   }

   ctx->Array.LockFirst = first;
   ctx->Array.LockCount = count;

   ctx->NewState |= _NEW_ARRAY;
   ctx->Array.NewState |= VERT_BIT_ALL;
}

开发者ID:hoangduit，项目名称:reactos，代码行数:28，代码来源:varray.c

示例16: _mesa_ResetMinmax

static void GLAPIENTRY
_mesa_ResetMinmax(GLenum target)
{
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

    if (!ctx->Extensions.EXT_histogram && !ctx->Extensions.ARB_imaging) {
        _mesa_error(ctx, GL_INVALID_OPERATION, "glResetMinmax");
        return;
    }

    if (target != GL_MINMAX) {
        _mesa_error(ctx, GL_INVALID_ENUM, "glResetMinMax(target)");
        return;
    }

    ctx->MinMax.Min[RCOMP] = 1000;
    ctx->MinMax.Max[RCOMP] = -1000;
    ctx->MinMax.Min[GCOMP] = 1000;
    ctx->MinMax.Max[GCOMP] = -1000;
    ctx->MinMax.Min[BCOMP] = 1000;
    ctx->MinMax.Max[BCOMP] = -1000;
    ctx->MinMax.Min[ACOMP] = 1000;
    ctx->MinMax.Max[ACOMP] = -1000;
}

开发者ID:digdugg，项目名称:chromium.src，代码行数:25，代码来源:histogram.c

示例17: _mesa_DepthRange

/**
 * Called by glDepthRange
 *
 * \param nearval  specifies the Z buffer value which should correspond to
 *                 the near clip plane
 * \param farval  specifies the Z buffer value which should correspond to
 *                the far clip plane
 */
void GLAPIENTRY
_mesa_DepthRange( GLclampd nearval, GLclampd farval )
{
   GET_CURRENT_CONTEXT(ctx);
   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

   if (MESA_VERBOSE&VERBOSE_API)
      _mesa_debug(ctx, "glDepthRange %f %f\n", nearval, farval);

   ctx->Viewport.Near = (GLfloat) CLAMP( nearval, 0.0, 1.0 );
   ctx->Viewport.Far = (GLfloat) CLAMP( farval, 0.0, 1.0 );
   ctx->NewState |= _NEW_VIEWPORT;

#if 1
   /* XXX remove this someday.  Currently the DRI drivers rely on
    * the WindowMap matrix being up to date in the driver's Viewport
    * and DepthRange functions.
    */
   _math_matrix_viewport(&ctx->Viewport._WindowMap,
                         ctx->Viewport.X, ctx->Viewport.Y,
                         ctx->Viewport.Width, ctx->Viewport.Height,
                         ctx->Viewport.Near, ctx->Viewport.Far,
                         ctx->DrawBuffer->_DepthMaxF);
#endif

   if (ctx->Driver.DepthRange) {
      (*ctx->Driver.DepthRange)( ctx, nearval, farval );
   }
}

开发者ID:mariuz，项目名称:haiku，代码行数:37，代码来源:matrix.c

示例18: _mesa_ResetHistogram

void
_mesa_ResetHistogram(GLenum target)
{
   GLuint i;
   GET_CURRENT_CONTEXT(ctx);
   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); /* sideeffects */

   if (!ctx->Extensions.EXT_histogram && !ctx->Extensions.ARB_imaging) {
      _mesa_error(ctx, GL_INVALID_OPERATION, "glResetHistogram");
      return;
   }

   if (target != GL_HISTOGRAM) {
      _mesa_error(ctx, GL_INVALID_ENUM, "glResetHistogram(target)");
      return;
   }

   for (i = 0; i < HISTOGRAM_TABLE_SIZE; i++) {
      ctx->Histogram.Count[i][0] = 0;
      ctx->Histogram.Count[i][1] = 0;
      ctx->Histogram.Count[i][2] = 0;
      ctx->Histogram.Count[i][3] = 0;
   }

   ctx->NewState |= _NEW_PIXEL;
}

开发者ID:DavidGriffith，项目名称:finx，代码行数:26，代码来源:histogram.c

示例19: _mesa_ClearBufferfi

/**
 * New in GL 3.0
 * Clear depth/stencil buffer only.
 */
void GLAPIENTRY
_mesa_ClearBufferfi(GLenum buffer, GLint drawbuffer,
                    GLfloat depth, GLint stencil)
{
   GET_CURRENT_CONTEXT(ctx);
   GLbitfield mask = 0;

   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

   FLUSH_CURRENT(ctx, 0);

   if (buffer != GL_DEPTH_STENCIL) {
      _mesa_error(ctx, GL_INVALID_ENUM, "glClearBufferfi(buffer=%s)",
                  _mesa_lookup_enum_by_nr(buffer));
      return;
   }

   /* Page 264 (page 280 of the PDF) of the OpenGL 3.0 spec says:
    *
    *     "ClearBuffer generates an INVALID VALUE error if buffer is
    *     COLOR and drawbuffer is less than zero, or greater than the
    *     value of MAX DRAW BUFFERS minus one; or if buffer is DEPTH,
    *     STENCIL, or DEPTH STENCIL and drawbuffer is not zero."
    */
   if (drawbuffer != 0) {
      _mesa_error(ctx, GL_INVALID_VALUE, "glClearBufferfi(drawbuffer=%d)",
                  drawbuffer);
      return;
   }

   if (ctx->RasterDiscard)
      return;

   if (ctx->NewState) {
      _mesa_update_state( ctx );
   }

   if (ctx->DrawBuffer->Attachment[BUFFER_DEPTH].Renderbuffer)
      mask |= BUFFER_BIT_DEPTH;
   if (ctx->DrawBuffer->Attachment[BUFFER_STENCIL].Renderbuffer)
      mask |= BUFFER_BIT_STENCIL;

   if (mask) {
      /* save current clear values */
      const GLclampd clearDepthSave = ctx->Depth.Clear;
      const GLuint clearStencilSave = ctx->Stencil.Clear;

      /* set new clear values */
      ctx->Depth.Clear = depth;
      ctx->Stencil.Clear = stencil;

      /* clear buffers */
      ctx->Driver.Clear(ctx, mask);

      /* restore */
      ctx->Depth.Clear = clearDepthSave;
      ctx->Stencil.Clear = clearStencilSave;
   }
}

开发者ID:FASTCHIP，项目名称:kernel_3.4.67_lenovo_s939_mtk6592，代码行数:63，代码来源:clear.c

示例20: _mesa_DrawPixels

/*
 * Execute glDrawPixels
 */
void GLAPIENTRY
_mesa_DrawPixels( GLsizei width, GLsizei height,
                  GLenum format, GLenum type, const GLvoid *pixels )
{
   GET_CURRENT_CONTEXT(ctx);
   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

   if (width < 0 || height < 0) {
      _mesa_error( ctx, GL_INVALID_VALUE, "glDrawPixels(width or height < 0" );
      return;
   }

   if (ctx->NewState) {
      _mesa_update_state(ctx);
   }

   if (ctx->FragmentProgram.Enabled && !ctx->FragmentProgram._Enabled) {
      _mesa_error(ctx, GL_INVALID_OPERATION,
                  "glDrawPixels (invalid fragment program)");
      return;
   }

   if (error_check_format_type(ctx, format, type, GL_TRUE)) {
      /* found an error */
      return;
   }

   if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
      _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
                  "glDrawPixels(incomplete framebuffer)" );
      return;
   }

   if (!ctx->Current.RasterPosValid) {
      return;
   }

   if (ctx->RenderMode == GL_RENDER) {
      /* Round, to satisfy conformance tests (matches SGI's OpenGL) */
      GLint x = IROUND(ctx->Current.RasterPos[0]);
      GLint y = IROUND(ctx->Current.RasterPos[1]);
      ctx->Driver.DrawPixels(ctx, x, y, width, height, format, type,
			     &ctx->Unpack, pixels);
   }
   else if (ctx->RenderMode == GL_FEEDBACK) {
      /* Feedback the current raster pos info */
      FLUSH_CURRENT( ctx, 0 );
      FEEDBACK_TOKEN( ctx, (GLfloat) (GLint) GL_DRAW_PIXEL_TOKEN );
      _mesa_feedback_vertex( ctx,
                             ctx->Current.RasterPos,
                             ctx->Current.RasterColor,
                             ctx->Current.RasterIndex,
                             ctx->Current.RasterTexCoords[0] );
   }
   else {
      ASSERT(ctx->RenderMode == GL_SELECT);
      /* Do nothing.  See OpenGL Spec, Appendix B, Corollary 6. */
   }
}

开发者ID:Magister，项目名称:x11rdp_xorg71，代码行数:62，代码来源:drawpix.c

注：本文中的ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH函数示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。