1 files changed, 3 insertions, 339 deletions

diff --git a/src/mesa/main/buffers.c b/src/mesa/main/buffers.c
index 5ab969e0ebb..5dd85de272a 100644
--- a/src/mesa/main/buffers.c
+++ b/src/mesa/main/buffers.c
@@ -25,7 +25,7 @@
 
 /**
  * \file buffers.c
- * General framebuffer-related functions, like glClear, glScissor, etc.
+ * glReadBuffer, DrawBuffer functions.
  */
 
 
@@ -42,151 +42,6 @@
 #define BAD_MASK ~0u
 
 
-#if _HAVE_FULL_GL
-void GLAPIENTRY
-_mesa_ClearIndex( GLfloat c )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (ctx->Color.ClearIndex == (GLuint) c)
-      return;
-
-   FLUSH_VERTICES(ctx, _NEW_COLOR);
-   ctx->Color.ClearIndex = (GLuint) c;
-
-   if (!ctx->Visual.rgbMode && ctx->Driver.ClearIndex) {
-      /* it's OK to call glClearIndex in RGBA mode but it should be a NOP */
-      (*ctx->Driver.ClearIndex)( ctx, ctx->Color.ClearIndex );
-   }
-}
-#endif
-
-
-/**
- * Specify the clear values for the color buffers.
- *
- * \param red red color component.
- * \param green green color component.
- * \param blue blue color component.
- * \param alpha alpha component.
- *
- * \sa glClearColor().
- *
- * Clamps the parameters and updates gl_colorbuffer_attrib::ClearColor.  On a
- * change, flushes the vertices and notifies the driver via the
- * dd_function_table::ClearColor callback.
- */
-void GLAPIENTRY
-_mesa_ClearColor( GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha )
-{
-   GLfloat tmp[4];
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   tmp[0] = CLAMP(red,   0.0F, 1.0F);
-   tmp[1] = CLAMP(green, 0.0F, 1.0F);
-   tmp[2] = CLAMP(blue,  0.0F, 1.0F);
-   tmp[3] = CLAMP(alpha, 0.0F, 1.0F);
-
-   if (TEST_EQ_4V(tmp, ctx->Color.ClearColor))
-      return; /* no change */
-
-   FLUSH_VERTICES(ctx, _NEW_COLOR);
-   COPY_4V(ctx->Color.ClearColor, tmp);
-
-   if (ctx->Visual.rgbMode && ctx->Driver.ClearColor) {
-      /* it's OK to call glClearColor in CI mode but it should be a NOP */
-      (*ctx->Driver.ClearColor)(ctx, ctx->Color.ClearColor);
-   }
-}
-
-
-/**
- * Clear buffers.
- * 
- * \param mask bit-mask indicating the buffers to be cleared.
- *
- * Flushes the vertices and verifies the parameter. If __GLcontextRec::NewState
- * is set then calls _mesa_update_state() to update gl_frame_buffer::_Xmin,
- * etc. If the rasterization mode is set to GL_RENDER then requests the driver
- * to clear the buffers, via the dd_function_table::Clear callback.
- */ 
-void GLAPIENTRY
-_mesa_Clear( GLbitfield mask )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glClear 0x%x\n", mask);
-
-   if (mask & ~(GL_COLOR_BUFFER_BIT |
-                GL_DEPTH_BUFFER_BIT |
-                GL_STENCIL_BUFFER_BIT |
-                GL_ACCUM_BUFFER_BIT)) {
-      /* invalid bit set */
-      _mesa_error( ctx, GL_INVALID_VALUE, "glClear(0x%x)", mask);
-      return;
-   }
-
-   if (ctx->NewState) {
-      _mesa_update_state( ctx );	/* update _Xmin, etc */
-   }
-
-   if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
-      _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
-                  "glClear(incomplete framebuffer)");
-      return;
-   }
-
-   if (ctx->DrawBuffer->Width == 0 || ctx->DrawBuffer->Height == 0 ||
-       ctx->DrawBuffer->_Xmin >= ctx->DrawBuffer->_Xmax ||
-       ctx->DrawBuffer->_Ymin >= ctx->DrawBuffer->_Ymax)
-      return;
-
-   if (ctx->RenderMode == GL_RENDER) {
-      GLbitfield bufferMask;
-
-      /* don't clear depth buffer if depth writing disabled */
-      if (!ctx->Depth.Mask)
-         mask &= ~GL_DEPTH_BUFFER_BIT;
-
-      /* Build the bitmask to send to device driver's Clear function.
-       * Note that the GL_COLOR_BUFFER_BIT flag will expand to 0, 1, 2 or 4
-       * of the BUFFER_BIT_FRONT/BACK_LEFT/RIGHT flags, or one of the
-       * BUFFER_BIT_COLORn flags.
-       */
-      bufferMask = 0;
-      if (mask & GL_COLOR_BUFFER_BIT) {
-         GLuint i;
-         for (i = 0; i < ctx->DrawBuffer->_NumColorDrawBuffers; i++) {
-            bufferMask |= (1 << ctx->DrawBuffer->_ColorDrawBufferIndexes[i]);
-         }
-      }
-
-      if ((mask & GL_DEPTH_BUFFER_BIT)
-          && ctx->DrawBuffer->Visual.haveDepthBuffer) {
-         bufferMask |= BUFFER_BIT_DEPTH;
-      }
-
-      if ((mask & GL_STENCIL_BUFFER_BIT)
-          && ctx->DrawBuffer->Visual.haveStencilBuffer) {
-         bufferMask |= BUFFER_BIT_STENCIL;
-      }
-
-      if ((mask & GL_ACCUM_BUFFER_BIT)
-          && ctx->DrawBuffer->Visual.haveAccumBuffer) {
-         bufferMask |= BUFFER_BIT_ACCUM;
-      }
-
-      ASSERT(ctx->Driver.Clear);
-      ctx->Driver.Clear(ctx, bufferMask);
-   }
-}
-
-
-
 /**
  * Return bitmask of BUFFER_BIT_* flags indicating which color buffers are
  * available to the rendering context (for drawing or reading).
@@ -564,7 +419,7 @@ _mesa_drawbuffers(GLcontext *ctx, GLuint n, const GLenum *buffers,
       }
    }
 
-   ctx->NewState |= _NEW_COLOR;
+   ctx->NewState |= _NEW_BUFFERS;
 }
 
 
@@ -639,6 +494,7 @@ _mesa_ReadBuffer(GLenum buffer)
    /* OK, all error checking has been completed now */
 
    _mesa_readbuffer(ctx, buffer, srcBuffer);
+   ctx->NewState |= _NEW_BUFFERS;
 
    /*
     * Call device driver function.
@@ -646,195 +502,3 @@ _mesa_ReadBuffer(GLenum buffer)
    if (ctx->Driver.ReadBuffer)
       (*ctx->Driver.ReadBuffer)(ctx, buffer);
 }
-
-
-#if _HAVE_FULL_GL
-
-/**
- * XXX THIS IS OBSOLETE - drivers should take care of detecting window
- * size changes and act accordingly, likely calling _mesa_resize_framebuffer().
- *
- * GL_MESA_resize_buffers extension.
- *
- * When this function is called, we'll ask the window system how large
- * the current window is.  If it's a new size, we'll call the driver's
- * ResizeBuffers function.  The driver will then resize its color buffers
- * as needed, and maybe call the swrast's routine for reallocating
- * swrast-managed depth/stencil/accum/etc buffers.
- * \note This function should only be called through the GL API, not
- * from device drivers (as was done in the past).
- */
-
-void _mesa_resizebuffers( GLcontext *ctx )
-{
-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH( ctx );
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glResizeBuffersMESA\n");
-
-   if (!ctx->Driver.GetBufferSize) {
-      return;
-   }
-
-   if (ctx->WinSysDrawBuffer) {
-      GLuint newWidth, newHeight;
-      GLframebuffer *buffer = ctx->WinSysDrawBuffer;
-
-      assert(buffer->Name == 0);
-
-      /* ask device driver for size of output buffer */
-      ctx->Driver.GetBufferSize( buffer, &newWidth, &newHeight );
-
-      /* see if size of device driver's color buffer (window) has changed */
-      if (buffer->Width != newWidth || buffer->Height != newHeight) {
-         if (ctx->Driver.ResizeBuffers)
-            ctx->Driver.ResizeBuffers(ctx, buffer, newWidth, newHeight );
-      }
-   }
-
-   if (ctx->WinSysReadBuffer
-       && ctx->WinSysReadBuffer != ctx->WinSysDrawBuffer) {
-      GLuint newWidth, newHeight;
-      GLframebuffer *buffer = ctx->WinSysReadBuffer;
-
-      assert(buffer->Name == 0);
-
-      /* ask device driver for size of read buffer */
-      ctx->Driver.GetBufferSize( buffer, &newWidth, &newHeight );
-
-      /* see if size of device driver's color buffer (window) has changed */
-      if (buffer->Width != newWidth || buffer->Height != newHeight) {
-         if (ctx->Driver.ResizeBuffers)
-            ctx->Driver.ResizeBuffers(ctx, buffer, newWidth, newHeight );
-      }
-   }
-
-   ctx->NewState |= _NEW_BUFFERS;  /* to update scissor / window bounds */
-}
-
-
-/*
- * XXX THIS IS OBSOLETE
- */
-void GLAPIENTRY
-_mesa_ResizeBuffersMESA( void )
-{
-   GET_CURRENT_CONTEXT(ctx);
-
-   if (ctx->Extensions.MESA_resize_buffers)
-      _mesa_resizebuffers( ctx );
-}
-
-
-/*
- * XXX move somewhere else someday?
- */
-void GLAPIENTRY
-_mesa_SampleCoverageARB(GLclampf value, GLboolean invert)
-{
-   GET_CURRENT_CONTEXT(ctx);
-
-   if (!ctx->Extensions.ARB_multisample) {
-      _mesa_error(ctx, GL_INVALID_OPERATION, "glSampleCoverageARB");
-      return;
-   }
-
-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH( ctx );
-   ctx->Multisample.SampleCoverageValue = (GLfloat) CLAMP(value, 0.0, 1.0);
-   ctx->Multisample.SampleCoverageInvert = invert;
-   ctx->NewState |= _NEW_MULTISAMPLE;
-}
-
-#endif /* _HAVE_FULL_GL */
-
-
-
-/**
- * Define the scissor box.
- *
- * \param x, y coordinates of the scissor box lower-left corner.
- * \param width width of the scissor box.
- * \param height height of the scissor box.
- *
- * \sa glScissor().
- *
- * Verifies the parameters and updates __GLcontextRec::Scissor. On a
- * change flushes the vertices and notifies the driver via
- * the dd_function_table::Scissor callback.
- */
-void
-_mesa_set_scissor(GLcontext *ctx, 
-                  GLint x, GLint y, GLsizei width, GLsizei height)
-{
-   if (x == ctx->Scissor.X &&
-       y == ctx->Scissor.Y &&
-       width == ctx->Scissor.Width &&
-       height == ctx->Scissor.Height)
-      return;
-
-   FLUSH_VERTICES(ctx, _NEW_SCISSOR);
-   ctx->Scissor.X = x;
-   ctx->Scissor.Y = y;
-   ctx->Scissor.Width = width;
-   ctx->Scissor.Height = height;
-
-   if (ctx->Driver.Scissor)
-      ctx->Driver.Scissor( ctx, x, y, width, height );
-}
-
-
-void GLAPIENTRY
-_mesa_Scissor( GLint x, GLint y, GLsizei width, GLsizei height )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (width < 0 || height < 0) {
-      _mesa_error( ctx, GL_INVALID_VALUE, "glScissor" );
-      return;
-   }
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glScissor %d %d %d %d\n", x, y, width, height);
-
-   _mesa_set_scissor(ctx, x, y, width, height);
-}
-
-
-
-/**********************************************************************/
-/** \name Initialization */
-/*@{*/
-
-/**
- * Initialize the context's scissor state.
- * \param ctx  the GL context.
- */
-void
-_mesa_init_scissor(GLcontext *ctx)
-{
-   /* Scissor group */
-   ctx->Scissor.Enabled = GL_FALSE;
-   ctx->Scissor.X = 0;
-   ctx->Scissor.Y = 0;
-   ctx->Scissor.Width = 0;
-   ctx->Scissor.Height = 0;
-}
-
-
-/**
- * Initialize the context's multisample state.
- * \param ctx  the GL context.
- */
-void
-_mesa_init_multisample(GLcontext *ctx)
-{
-   ctx->Multisample.Enabled = GL_TRUE;
-   ctx->Multisample.SampleAlphaToCoverage = GL_FALSE;
-   ctx->Multisample.SampleAlphaToOne = GL_FALSE;
-   ctx->Multisample.SampleCoverage = GL_FALSE;
-   ctx->Multisample.SampleCoverageValue = 1.0;
-   ctx->Multisample.SampleCoverageInvert = GL_FALSE;
-}
-
-/*@}*/