added some missing error checks
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@@ -1,10 +1,10 @@
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/* $Id: drawpix.c,v 1.58 2001/12/14 02:55:08 brianp Exp $ */
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/* $Id: drawpix.c,v 1.59 2002/01/15 21:49:57 brianp Exp $ */
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/*
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* Mesa 3-D graphics library
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* Version: 4.1
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*
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* Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
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* Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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@@ -52,6 +52,11 @@ _mesa_DrawPixels( GLsizei width, GLsizei height,
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GET_CURRENT_CONTEXT(ctx);
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ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
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if (width < 0 || height < 0) {
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_mesa_error( ctx, GL_INVALID_VALUE, "glDrawPixels(width or height < 0" );
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return;
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}
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if (ctx->RenderMode==GL_RENDER) {
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GLint x, y;
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if (!pixels || !ctx->Current.RasterPosValid) {
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@@ -98,6 +103,11 @@ _mesa_ReadPixels( GLint x, GLint y, GLsizei width, GLsizei height,
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GET_CURRENT_CONTEXT(ctx);
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ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
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if (width < 0 || height < 0) {
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_mesa_error( ctx, GL_INVALID_VALUE, "glReadPixels(width or height < 0)" );
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return;
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}
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if (!pixels) {
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_mesa_error( ctx, GL_INVALID_VALUE, "glReadPixels(pixels)" );
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return;
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@@ -122,7 +132,7 @@ _mesa_CopyPixels( GLint srcx, GLint srcy, GLsizei width, GLsizei height,
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ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
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if (width < 0 || height < 0) {
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_mesa_error( ctx, GL_INVALID_VALUE, "glCopyPixels" );
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_mesa_error( ctx, GL_INVALID_VALUE, "glCopyPixels(width or height < 0)" );
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return;
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}
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@@ -171,9 +181,8 @@ _mesa_Bitmap( GLsizei width, GLsizei height,
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GET_CURRENT_CONTEXT(ctx);
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ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
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/* Error checking */
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if (width < 0 || height < 0) {
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_mesa_error( ctx, GL_INVALID_VALUE, "glBitmap" );
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_mesa_error( ctx, GL_INVALID_VALUE, "glBitmap(width or height < 0)" );
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return;
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}
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@@ -1,4 +1,4 @@
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/* $Id: s_drawpix.c,v 1.24 2002/01/10 16:54:29 brianp Exp $ */
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/* $Id: s_drawpix.c,v 1.25 2002/01/15 21:49:58 brianp Exp $ */
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/*
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* Mesa 3-D graphics library
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@@ -560,6 +560,11 @@ draw_stencil_pixels( GLcontext *ctx, GLint x, GLint y,
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return;
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}
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if (ctx->Visual.stencilBits == 0) {
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_mesa_error( ctx, GL_INVALID_OPERATION, "glDrawPixels(no stencil buffer)");
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return;
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}
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drawWidth = (width > MAX_WIDTH) ? MAX_WIDTH : width;
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for (row = 0; row < height; row++, y++) {
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