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Added a check_context_limits() function that checks that the ctx->Const.*

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fields are legal.  May catch some driver development bugs.
Called the first time a context is bound.
This commit is contained in:
Brian Paul 2006-05-15 15:26:04 +00:00
parent c8ea111166
commit 5e2e96b6f0
1 changed files with 30 additions and 0 deletions
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30
src/mesa/main/context.c
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@ -1052,6 +1052,35 @@ _mesa_init_constants( GLcontext *ctx )
}
/**
* Do some sanity checks on the limits/constants for the given context.
* Only called the first time a context is bound.
*/
static void
check_context_limits(GLcontext *ctx)
{
/* Many context limits/constants are limited by the size of
* internal arrays.
*/
assert(ctx->Const.MaxTextureImageUnits <= MAX_TEXTURE_IMAGE_UNITS);
assert(ctx->Const.MaxTextureCoordUnits <= MAX_TEXTURE_COORD_UNITS);
assert(ctx->Const.MaxTextureUnits <= MAX_TEXTURE_IMAGE_UNITS);
assert(ctx->Const.MaxTextureUnits <= MAX_TEXTURE_COORD_UNITS);
assert(ctx->Const.MaxViewportWidth <= MAX_WIDTH);
assert(ctx->Const.MaxViewportHeight <= MAX_WIDTH);
/* make sure largest texture image is <= MAX_WIDTH in size */
assert((1 << (ctx->Const.MaxTextureLevels -1 )) <= MAX_WIDTH);
assert((1 << (ctx->Const.MaxCubeTextureLevels -1 )) <= MAX_WIDTH);
assert((1 << (ctx->Const.Max3DTextureLevels -1 )) <= MAX_WIDTH);
assert(ctx->Const.MaxDrawBuffers <= MAX_DRAW_BUFFERS);
/* XXX probably add more tests */
}
/**
* Initialize the attribute groups in a GL context.
*
@ -1647,6 +1676,7 @@ _mesa_make_current( GLcontext *newCtx, GLframebuffer *drawBuffer,
drawBuffer->Width, drawBuffer->Height);
_mesa_set_scissor(newCtx, 0, 0,
drawBuffer->Width, drawBuffer->Height );
check_context_limits(newCtx);
}
}