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tweak glAccum error checking

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This commit is contained in:
Brian Paul 2005-09-27 16:10:49 +00:00
parent 78b3b667b5
commit dbd0fa920e
1 changed files with 5 additions and 5 deletions
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10
src/mesa/main/accum.c
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@ -58,11 +58,6 @@ _mesa_Accum( GLenum op, GLfloat value )
GLuint xpos, ypos, width, height;
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
if (ctx->Visual.accumRedBits == 0 || ctx->DrawBuffer != ctx->ReadBuffer) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glAccum");
return;
}
switch (op) {
case GL_ADD:
case GL_MULT:
@ -76,6 +71,11 @@ _mesa_Accum( GLenum op, GLfloat value )
return;
}
if (ctx->Visual.accumRedBits == 0) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glAccum(no accum buffer)");
return;
}
if (ctx->DrawBuffer != ctx->ReadBuffer) {
/* See GLX_SGI_make_current_read or WGL_ARB_make_current_read */
_mesa_error(ctx, GL_INVALID_OPERATION,